[Repeater-Builder] ID old Regency PA board.
I have an old Regency ACU45A UHF 450-470 RF PA that appears to be modified with an additional PA board. The original 45W PA board is marked Regency and 604-143 Rev L, all the component part numbers are marked on the board as well. The additioal board appears to be of Regency/Wilson/Rhelm manufacture but has only 2 markings on it, MC 3881 in ink and 604-149 F in solder. This board has 5 ajustable air capacitors, a e/m relay, 2 Motoloa 9236 transisters along with afew other small components. The ACU45A is nominally a 45W PA, however the extra board kicks the output to over 100W. The PA is currently functional and tuned in the 440 band. Can anyone provide me with any info or a schematic of this additional board ? Doug N3DAB
[Repeater-Builder] ID old Regency PA board.
Just discovered that this additional board may have been lifted from a Regency ACH100 or AASCH100 PA, if anyone has the documentation on one of those PA's. Doug N3DAB
[Repeater-Builder] Re: Best coax for marine use
I would Suggest looking at either aandrew FSJx-50 or LMR 3/8 or 1/2 heliax type cable (100% solid shield) and if available a direct burial or underground type jacket for additional water infiltration protection. Go the the home pages or either mfg. to get full specs and min. bend radius. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Vernon Densler m...@... wrote: I have been in a big discussion with the guys on my boat list about the right coax for running up the mast for VHF marine radio. Keeping in mind that we are talking about a 70' or so run going up the center of an aluminum mast, in a salt water environment, and the radio is limited to 25 watts. Also keep in mind that when off shore this is a life line and the best possible send and receive is needed in an emergency situation. So given the criteria what is the best possible coax to use knowing that thickness matters and bend radiuses may be tight? Others on the list are saying just grab any old 8X type cable and you will be fine. I say use something with very low loss and suggested small heliax. Any suggestions? Vern s/v Nirvelli KI4ONW
[Repeater-Builder] Re: Announcements from a PC...
Don't know if you have Googled for any thing specific to your wants, but you might try this website and or contact Peter the author to see if any of his programs migh do the trick or possibly get a referral from him. Try http://www.echoaddons.com/ LOL Maybe some one who works with the Handi capped 9Speech impaired ) might be able to help also. Just my thoughts. never hurts to think out of the box. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mark n9...@... wrote: Dave, Randy, and all. I know it's been a while since I first responded about this. It has taken me a while to reach out for the originator of the program, and he in turn referred me to the user of it. To sum it up, I am not able to offer it. The writer was all for it, but because of his work obligations, he cannot support it in any way, shape or form. He didn't have the code anymore and thus referred me to the user. I reached out for him and was also rebuffed. He wanted no part of it at all. If things change in the future I can revisit this, but for now I apologize that I cannot be of any further assistance. Sorry all. Mark - N9WYS From: David Murman Sent: Thursday, October 22, 2009 8:01 PM To: Mark Subject: RE: [Repeater-Builder] Re: Announcements from a PC... Mark, I would like that info also and how they hooked it up to the controller. I maintain the KLUB repeaters here in Plano and definitely interested. David WA4ECM -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of Mark Sent: Monday, October 05, 2009 8:35 AM Randy, One of the local clubs here runs a program that makes text-to-voice announcements, like capturing NWS bulletins and converting them to speech for the 2m repeater. They call the program M-5 and it was written by another ham who has since moved to Galena, IL. If this might be what you are interested in, I can contact both the guy who wrote the program and the guy who is employing it and see what they have... Mark - N9WYS - Original Message - From: ki4zji To: Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com Sent: Sunday, October 04, 2009 4:19 PM Subject: [Repeater-Builder] Announcements from a PC... Does anyone know of any software that would allow scheduled announcements (either recorded voice or synthesized) through a soundcard interface and remote radio? Thanks, Randy
[Repeater-Builder] Re: Need wacom duplexer mod info
I googled WACOM 604 duplexer and came up with a bunch of info., you might try the same. I found a 2 page WACOM 604 flyer with the specs says the A,B and C cans are 80 tall, and the D can is 72 tall. Logic would say shorten the inner rod 8, but loop size might be smaller and the harness cables may be different length as well. LOL on your project. Hope some one else has more info to help you out. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, ag4uw ag...@... wrote: Hello group!! I am looking for someone that has info on mods for the wacom 604B duplexers to put them in the ham band 604D. And does anyone know how to remove the the tuning rod from the wacom duplexers??? Does the big nut on the top unscrew or can it be removed??? I am looking for info but have not been able to find anything on doing this mod. If I can remove the copper rod from the can I was going to try to cut it shorter,(If you know how long the tuning rod is on the D model please let me know. It can not be cut off from the end because it has finger stock on that end and will have to be cut off at the top. If anyone has any info please let me know. if you have the info on how long to cut the tunning rod off are know how long the tuning rod is on the 604D or have any info on how to remove the rod please let me know. any info you may have would be great. Thanks Freddy N4XW
[Repeater-Builder] Re: Antenna spacing
It would be interesting to hear how you would connect TWO 2Mtr. radios (assuming a standard .600khz split and a single antenna connector on each) thru a duplexer(s) to a single feed line and antenna. What type duplexer(s) are you suggesting ? Have you done this before ? Just curious. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Chris Robinson kf6...@... wrote: under the description you give you can put them on top of each other separated by a 1/2 wave or better without any real problems. if you are only going to transmit on one at a time then you wont have any reall issues. You will be able to run up to about 25 W without any problems that I can think of. I run a couple radios here at home and have the antennas relative close and only have problems when i kick up over 25W and then it is just some noise but nothing strong enough to kill the receive on the other rig. You can still use a duplexer and run two rigs to same antenna without any problems as well. then you would only have the one coax to worry about really. tends to make things cleaner looking on the install too! On Mon, Oct 26, 2009 at 9:48 PM, Jeremy (KB1REQ) kb1...@... wrote: The icom runs a max of about 65 watts but almost always less, more like 5 or 10. The antenna I hope to set up is a mobile 5/8 waxe over a ground-plane. My purpose is for skywarn activations, as an NCO it would help to be active one two frequencies nearly simultainously. Any further help is appriceated. --- In Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com, Eric Lemmon wb6fly@ wrote: Jeremy, You did not provide enough information to give you a good answer. How far apart are the frequencies involved? How powerful is the other radio? What I can tell you right away is that vertical separation is far, far, more effective than horizontal separation. If both radios are going to be frequency-agile, that is, there may not always be a fixed separation in frequency, then the simple answer is: Separate the two antennas vertically as much as you can, one over the other, and hope for the best. Use double-shielded cable for feedlines on both antennas. Damage to the receivers is not likely, since most good radios have diode protection on the front ends. After all, look at almost any mobile command post vehicle, and you'll probably see a dozen antennas on the roof- usually no more than a foot or so apart. Although major desense is almost guaranteed when any one of the radios transmits, judicious use of preselectors (such as those made by DCI) can minimize it. -Original Message- From: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of Jeremy (KB1REQ) Sent: Monday, October 26, 2009 6:24 PM To: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Antenna spacing This post does not necessarily relate to repeaters, but some of the same calculations can be applied. I am interested in installing another two meter radio in my shack and was wondering what kind of spacing is needed as to not over load either of the radio's receivers. I currently have an icom set up on a j-pole, and I have a 45 watt GM300 that I want to add. What would be the best placement of antennas to reduce desense. or otherwise damage the receivers?
[Repeater-Builder] Re: Antenna spacing
I agree that simplex freq's. on each radio would work, in which a simple notch type duplexer or filter cavity would probably surfice. But i got the impression that the original poster was referring to duplex mode on the radios which complicates things a bit with the hardware. I don't see any problem with using 2 feedline and 2 antennas stacked or side by side with a little separation between the m as long as he isn't talking on both radios simultaneously. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Chris Curtis demo...@... wrote: Probably referring to using a duplexer (certainly NOT a diplexer) to connect 2 simplex frequency'd 2m transceivers to a single antenna. ? Commonly done Chris Kb0wlf -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of n3dab Sent: Tuesday, October 27, 2009 12:09 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Antenna spacing It would be interesting to hear how you would connect TWO 2Mtr. radios (assuming a standard .600khz split and a single antenna connector on each) thru a duplexer(s) to a single feed line and antenna. What type duplexer(s) are you suggesting ? Have you done this before ? Just curious. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Chris Robinson kf6nfw@ wrote: under the description you give you can put them on top of each other separated by a 1/2 wave or better without any real problems. if you are only going to transmit on one at a time then you wont have any reall issues. You will be able to run up to about 25 W without any problems that I can think of. I run a couple radios here at home and have the antennas relative close and only have problems when i kick up over 25W and then it is just some noise but nothing strong enough to kill the receive on the other rig. You can still use a duplexer and run two rigs to same antenna without any problems as well. then you would only have the one coax to worry about really. tends to make things cleaner looking on the install too! On Mon, Oct 26, 2009 at 9:48 PM, Jeremy (KB1REQ) kb1req@ wrote: The icom runs a max of about 65 watts but almost always less, more like 5 or 10. The antenna I hope to set up is a mobile 5/8 waxe over a ground-plane. My purpose is for skywarn activations, as an NCO it would help to be active one two frequencies nearly simultainously. Any further help is appriceated. --- In Repeater-Builder@yahoogroups.comRepeater- Builder%40yahoogroups.com, Eric Lemmon wb6fly@ wrote: Jeremy, You did not provide enough information to give you a good answer. How far apart are the frequencies involved? How powerful is the other radio? What I can tell you right away is that vertical separation is far, far, more effective than horizontal separation. If both radios are going to be frequency-agile, that is, there may not always be a fixed separation in frequency, then the simple answer is: Separate the two antennas vertically as much as you can, one over the other, and hope for the best. Use double-shielded cable for feedlines on both antennas. Damage to the receivers is not likely, since most good radios have diode protection on the front ends. After all, look at almost any mobile command post vehicle, and you'll probably see a dozen antennas on the roof- usually no more than a foot or so apart. Although major desense is almost guaranteed when any one of the radios transmits, judicious use of preselectors (such as those made by DCI) can minimize it. -Original Message- From: Repeater-Builder@yahoogroups.comRepeater- Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater- Builder%40yahoogroups.com] On Behalf Of Jeremy (KB1REQ) Sent: Monday, October 26, 2009 6:24 PM To: Repeater-Builder@yahoogroups.comRepeater- Builder%40yahoogroups.com Subject: [Repeater-Builder] Antenna spacing This post does not necessarily relate to repeaters, but some of the same calculations can be applied. I am interested in installing another two meter radio in my shack and was wondering what kind of spacing is needed as to not over load either of the radio's receivers. I currently have an icom set up on a j-pole, and I have a 45 watt GM300 that I want to add. What would be the best placement of antennas to reduce desense. or otherwise damage the receivers? Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.32
[Repeater-Builder] Re: Antenna spacing
Can't argue with you there ,but then he (you) would have to go into the radios to split out the Tx and Rx from the single connector on the chassis. I didn't think he was in to rebuilding the radios or spending alot of money. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, skipp025 skipp...@... wrote: You could combine two close spaced transmitters using a hybrid and the right combination will work through one duplexer. Just throwing out one method... s. n3dab rb_n3dab@ wrote: It would be interesting to hear how you would connect TWO 2Mtr. radios (assuming a standard .600khz split and a single antenna connector on each) thru a duplexer(s) to a single feed line and antenna. What type duplexer(s) are you suggesting ? Have you done this before ? Just curious. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Chris Robinson kf6nfw@ wrote: under the description you give you can put them on top of each other separated by a 1/2 wave or better without any real problems. if you are only going to transmit on one at a time then you wont have any reall issues. You will be able to run up to about 25 W without any problems that I can think of. I run a couple radios here at home and have the antennas relative close and only have problems when i kick up over 25W and then it is just some noise but nothing strong enough to kill the receive on the other rig. You can still use a duplexer and run two rigs to same antenna without any problems as well. then you would only have the one coax to worry about really. tends to make things cleaner looking on the install too! On Mon, Oct 26, 2009 at 9:48 PM, Jeremy (KB1REQ) kb1req@ wrote: The icom runs a max of about 65 watts but almost always less, more like 5 or 10. The antenna I hope to set up is a mobile 5/8 waxe over a ground-plane. My purpose is for skywarn activations, as an NCO it would help to be active one two frequencies nearly simultainously. Any further help is appriceated. --- In Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com, Eric Lemmon wb6fly@ wrote: Jeremy, You did not provide enough information to give you a good answer. How far apart are the frequencies involved? How powerful is the other radio? What I can tell you right away is that vertical separation is far, far, more effective than horizontal separation. If both radios are going to be frequency-agile, that is, there may not always be a fixed separation in frequency, then the simple answer is: Separate the two antennas vertically as much as you can, one over the other, and hope for the best. Use double-shielded cable for feedlines on both antennas. Damage to the receivers is not likely, since most good radios have diode protection on the front ends. After all, look at almost any mobile command post vehicle, and you'll probably see a dozen antennas on the roof- usually no more than a foot or so apart. Although major desense is almost guaranteed when any one of the radios transmits, judicious use of preselectors (such as those made by DCI) can minimize it. -Original Message- From: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com [mailto:Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com] On Behalf Of Jeremy (KB1REQ) Sent: Monday, October 26, 2009 6:24 PM To: Repeater-Builder@yahoogroups.comRepeater-Builder%40yahoogroups.com Subject: [Repeater-Builder] Antenna spacing This post does not necessarily relate to repeaters, but some of the same calculations can be applied. I am interested in installing another two meter radio in my shack and was wondering what kind of spacing is needed as to not over load either of the radio's receivers. I currently have an icom set up on a j-pole, and I have a 45 watt GM300 that I want to add. What would be the best placement of antennas to reduce desense. or otherwise damage the receivers?
[Repeater-Builder] Re: Antenna spacing
Where are your antennas going to be placed ?? On a tower , on pole mast, on the roof, other ??? If i were going to mount 2 mobile antennas on a tower or pole i would try to fabricate an aluminum plate groung plane and mount one antenna on the top side and one one the bottom side then jury rig a aluminum support structure to mount it to the tower. Home Depot or lowes is a good source for aluminum angle,tube and sheet, but there are other sources as well. A little injunuity and imagination will get the job down. I'll send a photo of one of the mounts i built for antennas on my roof that i use for digi-peaters. along with some other suggestions. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Jeremy (KB1REQ) kb1...@... wrote: The icom runs a max of about 65 watts but almost always less, more like 5 or 10. The antenna I hope to set up is a mobile 5/8 waxe over a ground-plane. My purpose is for skywarn activations, as an NCO it would help to be active one two frequencies nearly simultainously. Any further help is appriceated. --- In Repeater-Builder@yahoogroups.com, Eric Lemmon wb6fly@ wrote: Jeremy, You did not provide enough information to give you a good answer. How far apart are the frequencies involved? How powerful is the other radio? What I can tell you right away is that vertical separation is far, far, more effective than horizontal separation. If both radios are going to be frequency-agile, that is, there may not always be a fixed separation in frequency, then the simple answer is: Separate the two antennas vertically as much as you can, one over the other, and hope for the best. Use double-shielded cable for feedlines on both antennas. Damage to the receivers is not likely, since most good radios have diode protection on the front ends. After all, look at almost any mobile command post vehicle, and you'll probably see a dozen antennas on the roof- usually no more than a foot or so apart. Although major desense is almost guaranteed when any one of the radios transmits, judicious use of preselectors (such as those made by DCI) can minimize it. -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jeremy (KB1REQ) Sent: Monday, October 26, 2009 6:24 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Antenna spacing This post does not necessarily relate to repeaters, but some of the same calculations can be applied. I am interested in installing another two meter radio in my shack and was wondering what kind of spacing is needed as to not over load either of the radio's receivers. I currently have an icom set up on a j-pole, and I have a 45 watt GM300 that I want to add. What would be the best placement of antennas to reduce desense. or otherwise damage the receivers?
[Repeater-Builder] Re: Cleaning coax corrosion
Since you have to diconnect it at the antenna end (the almost unreachable place ) and it is not for a repeater, why not just cut it back to where it is convenient to work on it (preferably indoors and weather protected) and provide a new piece of cable as a jumper to the antenna. If you cut the old cable back far enough from the exposed end you should be able to get to clean braid and center conductor, and insert ing a barrel connector wont degrade your signal enough to worry about. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, John johnk.mch...@... wrote: Hi, I need to replace a PL-259 on the end of a piece of RG-8U at the antenna end. The coax shielding is severely corroded, I can cut back aways and still reach but I need to clean the shielding so I can solder on a new connector. Any suggestion to do this. This is on the roof of a building and the coax is routed around the rampart to the antenna mount and almost impossible to replace. Before the cable cops jump on me it's not for repeater service. Thanks, John -- John Mc Hugh, K4AG Coordinator for Amateur Radio National Hurricane Center, WX4NHC Home page:- http://www.wx4nhc.org
[Repeater-Builder] Re: Antenna SWR = Desense?
I've been following this thread on and off. I was wondering if you tried replacing the 100' plus run of RG-214 with another cable. Or if you have pulled the connectors on each end to see if they are properly installed. (I have had connectors installed by the cable supplier that were bad. in one case a direct short between the shield and center conductor because the cable wasn't properly trimmed, and in another case the shield was deformed during the installation and the distance between it and the center conductor was close enought to short when RF was applied but still not show a short when check with a VOM for continuity.) All it takes is for a couple of strands of the shield braid to be in the wrong place when you key up. to cause all your greif. Also, you might want to do the same with all the other cables (inspect and/or substitute 1 at a time). Barring that I would suggest you change out every adapter/fitting and right angle connector you have in the system, from rptr. to antenna, one at a time to see if the problem lies there as well. The 100' horizotal distance and 10' vertical distance are not where the problem is. You have got a faulty component os sheilding problem. My 2 cents worth. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, tahrens301 tahr...@... wrote: Thanks to all... I guess it could be corrosion at the antenna, but the one that is on it now is pretty simple, not much opportunity for corrosion. I am going to put up the 2nd DB-224 tomorrow see what difference it makes... I don't really think it'll change much, but it will let me play with the matching unit I built see if it works! Don - I can put the iso-tee in line, feed the atten port into the spectrum analyzer. It should show me if the xmtr is having problems. However, the current antenna is a perfect match - no reflected power at all, so I think the xmtr 'should' be happy. The 100' may be the real problem, although everything has very well made cables, quality RG-214, N connectors, etc. Thanks, Tim W5FN --- In Repeater-Builder@yahoogroups.com, purvissid purvissid@ wrote: You mentioned 100 ft hoz separation, I don't think that is enough, but don't have a chart handy where I am now. Sid. --- In Repeater-Builder@yahoogroups.com, tahrens301 tahrens@ wrote: Hi Jim All, Thanks for the info responses. I took down the 224 found that the N connector on the end wasn't quite up to snuff. I am going to put a ham antenna on it - think it's a ringo2 or some such thing, just to see how an antenna with good swr will work in the desense arena. Then I'll put up a different 224 see how it goes. I did see the posting about how to lower the frequency of a 224. Not sure I want to go that route, but might in the end! I built a small matching unit that I'll try out... basically a tuner that will go between the duplexer feedline. One of the guys talked about using a smith chart putting some stubs at the feed line which would change the matching. gee, lots of things to experiment with. That's the fun of it no? :-o Thanks again, I'll post my progress. Tim W5FN --- In Repeater-Builder@yahoogroups.com, Jim Brown w5zit@ wrote: One of the local repeater operators used an antenna at the top of a 100 ft tower that got bent over during last winter storms. He put up a temporary antenna at the tower base and is experiencing some really bad desense with the low antenna. He is using a GE Mastr II base station repeater and had reasonable operation with little desense on the antenna 100 ft above the equipment. The antenna only 15 ft or so above the equipment now and has the bad desense problem. It would appear that the antenna is flooding the equipment with more RF than the shielding can handle. BTW, take a look at some of the previous posts on modifying a DB-224 by adding a 2 inch extension to each end of each dipole to bring it down into the ham band. The SWR does not go completely to 1:1, but does hit a minimum in the middle of the 2 meter ham band. No change to the harness was required to move the antenna frequency. 73 - Jim W5ZIT --- On Tue, 9/1/09, tahrens301 tahrens@ wrote: From: tahrens301 tahrens@ Subject: [Repeater-Builder] Antenna SWR = Desense? To: Repeater-Builder@yahoogroups.com Date: Tuesday, September 1, 2009, 2:03 PM Hi folks, Just a bit of an update... got the 6 cavity Telewave duplexer tweaked up - looks like it pretty much hit the specs in the data sheet. With a dummy load at the 'antenna' port, I used an iso-tee to inject a signal at both
[Repeater-Builder] Re: Antenna SWR = Desense?
I know the frustration your dealing with. When you did your RF tests, were you keying the XMTR. thru the local mic. or with the rcvr. disabled, or were you in the full rpt. mode and using another radio (HT) or low power signal source? My problems only showed up in the full rpt. mode, after i had checked everthing else in the rpt. disabled mode and everthing look great as far as forward and reflected power, etc. Any way LOL again on locating the glitch. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, tahrens301 tahr...@... wrote: Hi Doug, I put the connectors on the hardline myself, was very careful in doing so. Also did an RF check with a dummy load on the end, and no loss/problems. I am going to concentrate on the actual connectors from the Quantar. thanks, Tim --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: I've been following this thread on and off. I was wondering if you tried replacing the 100' plus run of RG-214 with another cable. Or if you have pulled the connectors on each end to see if they are properly installed. (I have had connectors installed by the cable supplier that were bad. in one case a direct short between the shield and center conductor because the cable wasn't properly trimmed, and in another case the shield was deformed during the installation and the distance between it and the center conductor was close enought to short when RF was applied but still not show a short when check with a VOM for continuity.) All it takes is for a couple of strands of the shield braid to be in the wrong place when you key up. to cause all your greif. Also, you might want to do the same with all the other cables (inspect and/or substitute 1 at a time). Barring that I would suggest you change out every adapter/fitting and right angle connector you have in the system, from rptr. to antenna, one at a time to see if the problem lies there as well. The 100' horizotal distance and 10' vertical distance are not where the problem is. You have got a faulty component os sheilding problem. My 2 cents worth. Doug N3DAB
[Repeater-Builder] Re: Batteries /Shelby HF (OT)
Thanks, John. I'll give him a call this evening. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, jo...@... wrote: Sorry, That was supposed to be a private reply. He is Robin Midgett, K4IDC - 615-301-1642 Call him tomorrow evening, he goes to bed early. John Some one posted a message a short while back about taking a load of batteries to the Shelby HF this coming weekend. I can't find the original post and am hoping he reads this post. I'm looking for 6 of the WP7.2-12 (7.2amp/12v)if he has any and if he will be taking them to Shelby. Please contact me off list @ de_n3dab at tds.net Doug N3DAB Yahoo! Groups Links Yahoo! Groups Links
[Repeater-Builder] Batteries /Shelby HF (OT)
Some one posted a message a short while back about taking a load of batteries to the Shelby HF this coming weekend. I can't find the original post and am hoping he reads this post. I'm looking for 6 of the WP7.2-12 (7.2amp/12v)if he has any and if he will be taking them to Shelby. Please contact me off list @ de_n3dab at tds.net Doug N3DAB
[Repeater-Builder] 1.2 GHz Base antennas
I'm looking for any information and/or construction details for a hi-gain folded dipole omni-directional antenna in the 1.2 GHz Amateur band (similar to the VHF design shown in the ARRL Handbook or the DB products line) for use as a base or repeater antenna. I would like to build the folded dipole type, but am not to familiar with the way to compute the dipole dimensions, stand off from the mast and vertical spacing of the dipole loops. If someone has already built one successfully, I would appreciate them contacting me of list at de underscore n3dab @ tds dot net (no spaces) if they are willing to share their knowledge.
[Repeater-Builder] Re: 1.2 GHz Base antennas
Mark - To keep from repeating my self i'll refer you to my response to John's reply. I appreciate your reply but your references were for Yagi's and colinear antennas and not applicable to what i had in mind of building, though the colinear antenna may be a fallback. If Chuck Kelsey is amongst the readers of this post maybe he has some additional info on the 1.2 GHz dimensions i'm looking for. Thanks again for your input. --- In Repeater-Builder@yahoogroups.com, Mark n9...@... wrote: Doug, Check out the articles on the companion website: http://www.repeater-builder.com/antenna/pdf/wr9aea-antenna-n9sn-hr09-79.pdf http://www.repeater-builder.com/antenna/wa6svt.html and the master page: http://www.repeater-builder.com/antenna/ant-sys-index.html#antennas A real treasure trove of information! 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Wednesday, August 26, 2009 11:14 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 1.2 GHz Base antennas I'm looking for any information and/or construction details for a hi-gain folded dipole omni-directional antenna in the 1.2 GHz Amateur band (similar to the VHF design shown in the ARRL Handbook or the DB products line) for use as a base or repeater antenna. I would like to build the folded dipole type, but am not to familiar with the way to compute the dipole dimensions, stand off from the mast and vertical spacing of the dipole loops. If someone has already built one successfully, I would appreciate them contacting me of list at de underscore n3dab @ tds dot net (no spaces) if they are willing to share their knowledge. Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.67/2326 - Release Date: 08/25/09 18:07:00
[Repeater-Builder] Re: 50-Ohm Pads
I just use a 50 ohm dummy load on the open ports when tuning a duplexer, or leave one of the cables connected to the Xmtr. or Rcvr. --- In Repeater-Builder@yahoogroups.com, John Transue jtran...@... wrote: Bruce, Chuck, Thanks for the quick reply. It appears that minicircuits has everything covered. Bruce, I could not tell whether you are a dealer or just happen to have some extra pads. My need is not specific yet, but I see that 6 dB and 30 dB pads are used quite often. My use of the pads would most likely be to ensure a near-50-ohm impedance when making measurements or tuning a cavity, etc. John -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:Repeater- buil...@yahoogroups.com] On Behalf Of Chuck Kelsey Sent: Tuesday, August 25, 2009 8:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] 50-Ohm Pads Not sure what your attachment was, it was all scrambled. Attenuators: http://www.minicircuits.com/products/attenuators_coax_fixed.html Chuck WB2EDV - Original Message - From: John Transue jtran...@... To: Repeater-Builder@yahoogroups.com Sent: Tuesday, August 25, 2009 8:06 PM Subject: [Repeater-Builder] 50-Ohm Pads [1 Attachment] Can anyone recommend a good source for 50-ohm pads? Also, 50-ohm variable attenuators. John Transue Yahoo! Groups Links Yahoo! Groups Links __ NOD32 4367 (20090825) Information __ This message was checked by NOD32 antivirus system. http://www.eset.com
[Repeater-Builder] Re: 1.2 GHz Base antennas
OK. Thanks anyway. Just thought there might be some experimentors out there in RF land. Do you think a 420-430 antenna work on the 3rd hanmonic, similar to using a 2 mtr. antenna with a 440 transmitter, as I have seen mentioned here on occaision There isn't a lot out there in base/rptr. antennas in the Amateur or commercial market for 1.2 GHz. unless it is special order. --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote: Sorry, I am of no help. I've never seen a folded dipole array for that band. Not sure if anyone ever made one. My article was cloning a Signals brand antenna with lengths changed to cover the ham band. Chuck WB2EDV - Original Message - From: n3dab rb_n3...@... To: Repeater-Builder@yahoogroups.com Sent: Wednesday, August 26, 2009 2:17 PM Subject: [Repeater-Builder] Re: 1.2 GHz Base antennas Mark - To keep from repeating my self i'll refer you to my response to John's reply. I appreciate your reply but your references were for Yagi's and colinear antennas and not applicable to what i had in mind of building, though the colinear antenna may be a fallback. If Chuck Kelsey is amongst the readers of this post maybe he has some additional info on the 1.2 GHz dimensions i'm looking for. Thanks again for your input. --- In Repeater-Builder@yahoogroups.com, Mark n9wys@ wrote: Doug, Check out the articles on the companion website: http://www.repeater-builder.com/antenna/pdf/wr9aea-antenna-n9sn-hr09-79.pdf http://www.repeater-builder.com/antenna/wa6svt.html and the master page: http://www.repeater-builder.com/antenna/ant-sys-index.html#antennas A real treasure trove of information! 73 de Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Wednesday, August 26, 2009 11:14 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] 1.2 GHz Base antennas I'm looking for any information and/or construction details for a hi-gain folded dipole omni-directional antenna in the 1.2 GHz Amateur band (similar to the VHF design shown in the ARRL Handbook or the DB products line) for use as a base or repeater antenna. I would like to build the folded dipole type, but am not to familiar with the way to compute the dipole dimensions, stand off from the mast and vertical spacing of the dipole loops. If someone has already built one successfully, I would appreciate them contacting me of list at de underscore n3dab @ tds dot net (no spaces) if they are willing to share their knowledge. Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.67/2326 - Release Date: 08/25/09 18:07:00 Yahoo! Groups Links
[Repeater-Builder] Re: duplexerhelp or a good recomendation
Use the top antenna (celwave) for rec'v. and the mag mount mobile for Xmit. Use RG-214 or 1/2 heliax (not LMR) for cabling to antennnas. minimize all jumpers andadapters and try to use silver plated fittings. try not to use any right angel connectors. If short flexible jumper cables are needed use RG-142B or 1/4 -3/8 heliax. Do not use RG-58 or 59 in your system. Your isolation (?) problem may be due to poor cable/cannector choices. Reduce Xmit power if necessary to reduce any desense of the rcvr. Make sure you have an adequate groung plane (like a 24 dia. galv. steel plate) for the mag mount to sit on and stand it off the tower leg at least 24. You also might try inverting the mag mount so the antenna is on the bottom of the ground plane plate. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, agrimm0034 agrimm0...@... wrote: I am using a UHF GMRS repeater without a duplexer on 40 ft of tower. I use 2 antennas one of a Celwave 6db gain on the top as a tx antenna, and one 15 ft up off the ground mag mount to use as a rx antenna. The tx radio is a 45 watt and the rx on the rx radio is .35uv sensitivity. It seems to me that I don't have enough isolation between the antennas and often have trouble getting through the repeater. Am I out of my mind to look into getting a celwave duplexer or is there any other ideas's that would fit my needs?
[Repeater-Builder] Re: Getting mice out of a repeater sight
Try a liberal application of Moth Balls and D-Con. Both available at most super markets and home stores like Home Depot. Place at various locations around the site interior. They Moth Balls can be placed inside and around the equipment cabinets. The D-Con on the floor near or in interior corners and near interior openings used for entry/exit by the mice. Check and replace perodically as the Moth Balls evaporate over time and the mice eat tihe D-Con then go off looking for water and die. N3DAB -- In Repeater-Builder@yahoogroups.com, Jed Barton j...@... wrote: Hey guys, I am sure many of you have been through this before. The evil mice decided to waunder in to my repeater sight. Up until now they avoided my repeater, but when I went up there, I was less than pleased. They didn't chew any wires thank god, but they walked across the top of the icom rp4020, and left some presents if you know what I mean. I need some input, what's the best way to clean it up, anything in particular? All the covers were on, so I don't think they got inside, but haven't pulled the cover off yet. Any ideas? Thanks, Jed
[Repeater-Builder] Re: Wacom WP-640-6 Duplexer help needed
Try testing each cavity by itself, then test each Tee and each cable individually to see if you can isolate a bad cavity or component. When testing each cavity try moving the tuning rod in and out to see if you have a dead spot from arcing or carbon build-up. If that model has the capacitive tubes on the side of the cavity remove and clean all those components as well. If you can't locate any faulty components on the exterior then internal inspection will be necessary. and it may be simpler to send it back to Wacom/Telewave for repair. Also, I hope your using a service monitor with tracking generator or a signal generator and spectrum analyzer or some type of equipment that you can see the the freqency trace on as you feed it thru the cavities. I have 2 similar 4 cavity sets here and the top and bottom plates appear to be press fitted to the round body. I've beaten the tops off of several DB-40xx cavities and reworked them then put them back together but they are both press and riveted together and I would think easier to disassemble and replace then the Wacom cavities. Of course if the cavities are notching the signal you are trying to pass thru them that might make you think they are bad too. LOL in finding the problem. DougN3DAB --- In Repeater-Builder@yahoogroups.com, Larry la...@... wrote: Would anyone on the list have any info for the Wacom WP-640-6 Duplexer. I realize that Telewave makes the TPRD-1556 and shows it as an equivalent However the cavity construction, cables and cavity port connections are not the the same. Anyone know how these are constructed inside. The duplexer doesn't appear to have been damaged or dismantled but we are unable to pass any frequency through them. Pointers welcome. Larry - N7FM
[Repeater-Builder] Re: Which UHF Antenna to Buy?
Try this web site for a radio propagation plot or map. I f you have any problems using it email me direct - de_n3...@tds.net - and i'll try to help you out. Doug N3DAB - In Repeater-Builder@yahoogroups.com, k5in k...@... wrote: Hi, Now that I have clearly demonstrated my ignorance about multi bay dipole antennas: Which one to buy for the following system. 441.950 output, 2,700ft on a mountain with a 160ft tower. Antenna will live at the 140ft level fed by 78th inch hardline. I need coverage that will include myself 12 air miles away at 50ft ASL, plus a turrane that varies in height from my level up and out to whatever distance. Do any of you with much more experience of antenna's such as the Decibel Products have any suggestions? Of course I could pay hundreds of dollars for site plots and so forth but after all, this is amateur radio. Thanks for reading and your patience too. Brian
[Repeater-Builder] Re: Which UHF Antenna to Buy?
Ooops, forgot to put the website in the last message. http://lrcov.crc.ca/cov.php?lang=en It is free and allows you to play with your parameters. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, k5in k...@... wrote: Hi, Now that I have clearly demonstrated my ignorance about multi bay dipole antennas: Which one to buy for the following system. 441.950 output, 2,700ft on a mountain with a 160ft tower. Antenna will live at the 140ft level fed by 78th inch hardline. I need coverage that will include myself 12 air miles away at 50ft ASL, plus a turrane that varies in height from my level up and out to whatever distance. Do any of you with much more experience of antenna's such as the Decibel Products have any suggestions? Of course I could pay hundreds of dollars for site plots and so forth but after all, this is amateur radio. Thanks for reading and your patience too. Brian
[Repeater-Builder] Re: low band duplexer question
My guess from looking at the schematic is that the tee's are for the grounded and ungrounded coaxial cable tuning stubs that were cut for the original freqency and have been apparently removed. Some one else will have to fill you in on how to calculate the length, etc for making replacements. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, n...@... wrote: At 3/29/2009 14:09, you wrote: Ok, so I've got a nice looking db-4030 duplexer. Little 6m repeater project cooking. Now, I've got the tuning sheet and also the scan of a fax of a modification sheet for 6m. I also understand it's a reject only setup. My question is, what are the unterminated T connectors doing all over the harness? Please forgive the terrible pictures, I used my cheap motorcycle MP4 camera. There are 4 T connectors that only have a plastic cap over the female part. Just seems crazy to me. Check out the last page of http://www.repeater-builder.com/db/db-4032-low-band-duplexer.pdf. According to the table at the lower right, 6 cables on the DB-4032 (6 can version of the DB-4030) are omitted for splits 1 MHz or greater. Also, unterminated T connectors @ VHF lowband are going to look pretty much like opens, since the line length is very short. Don't know how much leakage you'd get with SO239s; I do know that female Ns left open won't leak, especially @ 50 MHz.. Check the schematic in the above referenced page see if it matches what you have, subtracting the 2 outside cans from the schematic. Bob NO6B
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Extend the radials not less than 1/4 wave from the mast stub to the tip. And bend them down at about a 30 degree angle. Lone ger radials probably wouldn't hurt (in 1/4 wave increments) but provides more wind load and aesthectic challenges. $ equally space might be slightly better than3 but i doubt you would notice the difference. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebh...@... wrote: I am pretty sure HD has aluminum strips that will work just fine. Should I make the radials 1/4 wave , or longer? --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: Forgot to mention if you can't find alum. for the ground plane elements at the local surpus yard or hardware store (HD or Lowes) see if you can find the city or county sign shop (the people who maintain the stop, yield and directional signs) as the may have pulls or damaged signs you can talk them out of. These are fairly heavy gage but usually soft alum. alloy and can be easily cut into strips with a carbide tipped blade on a small table saw with out any damage to the saw. Just make sure you put the alum. side against the metal mast stub as the sign side is a decal and you may not get the bonding you want for the radials. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Good point, much easier to use a couple of clamps, and I just happen to have some stainless steel clamps here in the garage! Thanks for the advice. --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: Do your self a big favor and don't drill any holes. Use 1 or 2 large stainless steel hose clamps, slip 3 or 4 aluminum radials up between the clamp and metal antenna base (similar to what you see in the picture for the TDD-6082). That is the way the Motorola and Station Master base station radials are atached. Extend the aluminum radial metal about 1 above the top clamp, tighten the clamps and then fold the 1 projection over to cover the SS clamp band. That way if the clamp loosens up a bit the radials wont fall off. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Yes, that sounds like the antenna I have exactly, must be it. Looks like the general concensuss is to keep this one in service and not even bother trying the Diamond antenna. I don't have the radials though, but with this antenna I could even drill some holes in the collar that screws over the N connector and install radials that way. I bet that will help with the radiation pattern a bit. Thanks for all the assitance, as always, this is an awesome group. 73;s --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: You described mine like you were looking at it. - Original Message - From: wb6dgn tallinson2@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 9:16 PM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Hi Gerald and the group, I think I've got one of these antennas too. It has a white fiberglass radome, just under 7 feet long and about an inch in diameter at the base, coupled to an aluminum bottom section about a foot long and 1-5/16 inch diameter. A protective sleeve of the aluminum unscrews to expose an N female connector. The logo is a black rectangle with a white ellipse centered over it. There was probably a name written in that ellipse but it's no longer readable now. There is a serial number tag on the aluminum base but some of the numbers are no longer readable due to a clamp damaging the tag. It also has the radial assembly just as you describe. I see no other markings or frequency range marked on it but, if it was pulled from the system I think it was, most of the channels were in the 453/458 range with one or two in the 467 range. I suspect it'll work just fine on the ham band. The mounting clamps are missing but they should be pretty easy to scrounge; if anyone has spares, let me know. Where is the frequency range marked on the antenna? If I know where to look, I'll try to clean a little of the dirt or oxidation to see if I can find it. Looks like a nice antenna. There's an RFS version in the Tessco catalog that suggests that they might be the OEM parent of this antenna. Tom DGN --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote
[Repeater-Builder] Re: What is this antenna???
My first Db was a 410 in the same time period. It had tubular di-poles and tubular stand-off's, not the stamp sheet type now used. It had 8 pairs of di-poles (16 total) and was on a 2 section mast the same as the current DB-420. I don't know what has only 6 di-poles an a 12' mast unless it is a home brew from a damaged antenna. Everything I remember from the old DB catalogs for di-pole antennas was 1, 2, 4, 8, or 16 di-poles. Single sided arrays had 1, 2, 4 and 8 and pairs had 2, 4, 8, and 16. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Chuck Kelsey wb2...@... wrote: I would have guessed that they went to tubing earlier than the 80's, but my earliest Decibel antenna was around 1978-81 (they used tubing), so I can't say with any certainty. Chuck WB2EDV - Original Message - From: Jeff DePolo To: Repeater-Builder@yahoogroups.com Sent: Saturday, March 28, 2009 10:03 AM Subject: RE: [Repeater-Builder] What is this antenna??? If the elements are flat (not tubing), then it's a DB410. They stopped making them probably in the early 80's? --- Jeff
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Sorry I was asleep at the keyboard last night. TDE-6082A is 8 feet long OA per moto. specs. Photo of the TDD is generic and the lower gain version may not have had radials. However some alum. sheet strips projecting about 1/4 wave off the base and secured with a SS hose clamp will do the trick if you want to go to the trouble. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebh...@... wrote: Thanks Gerald, that sounds like the one, except for the one I have does not have ground radials, and I don't see any place to install them either. I was contemplating changing the antenna to something like a Diamond F718A, it has better gain, almost double over the one I am using now, plus it is designed for the frequency I am on, I wonder if the small investment would yield better coverage. --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: I have one of those in the garage. TDE-6082A It's about 7 feet long (I didn't measure it) and has radials on it. Label says 460- 470. I used it temporarily on a 443.275 machine here at the house for testing. SWR wasn't bad and worked just fine. Gerald Pelnar WD0FYF McPherson, Ks - Original Message - From: gebhardstephen stevegebhard@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 1:13 AM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola That one is closer, but the length is wrong, and the one pictured has ground radials, this one does not. Without specifics I guess this is as far as I can go. What I am trying to do is see if this is the right antenna for a ham repeater on 447.425/442.425 split. As I said before, the SWR is OK, but I wonder if it is just operating on a multiple, and I am not getting the full gain that I should. --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: Could be. Motorola spec say OA length for the TDE-6082A is *'. The Hi-Gain specs for the TDD-6082A on the RB site don't give the OA lengths for the different gain antennas, except to say max. length is about 22'. Unless there is some indication of the Mfg. on the remaining portion of the label or you can find more specs. for the Hi-Gain antenns it's just a guess at this point. Doug N3DAB -- In Repeater-Builder@yahoogroups.com, Bill Hudson w6cbs@ wrote: It could be a TDD-6082 See here: http://www.repeater-builder.com/antenna/mot-vhf-hi-gain-ant-specs.pdf Bill - W6CBS _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Thursday, March 26, 2009 2:52 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Mark My info came from an old Moto. catalog. If it is about 8' OA long long with a N connector as he described on it it's not a mobile antenna. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, Mark n9wys@ wrote: I'm confused. This was described initially as a repeater antenna but if I Google the Motorola part number, I see pictures of a mobile antenna. Which are we talking about? Mark - N9WYS -Original Message- From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com On Behalf Of n3dab Negative, but my guess would be Phelps Dodge. Maybe Celwave,or possibly DB Products. Maybe some of the other Guru's on the site can probably fill you in on that. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, gebhardstephen stevegebhard@ wrote: Thanks Doug, actually I checked SWR on 442 Mhz and it is 1.2:1! Do you know who made this for Motorola? --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, n3dab rb_n3dab@ wrote: It's a TDE-6082A, 5db gain, 460-470MHz. If ti is working properly it would be good for GMRS as is. Don't know what you would find in SWR in the 440 band but probably more then you would want to consider having. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, gebhardstephen stevegebhard@ wrote: Hi all, I have a UHF repeter antenna that was in use on 463 Mhz. I cannot find any information as to frequency range, max power, gain, etc. The last of the model # is E-6082A (The first part of the label is worn off and unreadable). I have done some searching and cannot
[Repeater-Builder] Re: More on the Q2330 Duplexer
The Q202 with the 7 dia cans would give you better results, i believe, higher Q and all that. The hybrib ring type might be a PIA to retune but if you have the 4 cans with the Tuning Capacitor in the Loop Assembly tuning will be much easier and you should get 85 to 90 dB isolation per side. Not sure what the complete model no. is but there are some on eBay in one of the store listings (though the price is quite high for the Ham market). Doug N3DAB --- In Repeater-Builder@yahoogroups.com, David Struebel wb2...@... wrote: With all of this discussion, is either the Q202 or its cousins or the new Q2330 all with now 80 dB of isolation good enough for a 2 meter repeater with a 0.6 MHz split? Putting a new machine on the air and need to know if I should go with a 6 cavity duplexer to give me the 100 or so dB isolation, and albeit the higher insertion loss or can I stay with a 4 can duplexer with typically 85 dB isolation and 1.5 dB insertion loss? In a quandry... most of my experience is with a Sinclair hybrid ring duplexer which seems to work fine at a 25 watt level. 73 Dave WB2FTX - Original Message - From: John J. Riddell To: Repeater-Builder@yahoogroups.com Sent: Wednesday, March 25, 2009 7:41 PM Subject: [Repeater-Builder] More on the Q2330 Duplexer After checking the Sinclair Web site, I see that they have lowered the Tx - Rx isolation on the Q 2330 duplexer to 85 Db. The original literature that I had claimed 100 Db. 73 John VE3AMZ -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.29/2023 - Release Date: 03/25/09 18:54:00 No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.30/2026 - Release Date: 03/27/09 07:13:00
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Do your self a big favor and don't drill any holes. Use 1 or 2 large stainless steel hose clamps, slip 3 or 4 aluminum radials up between the clamp and metal antenna base (similar to what you see in the picture for the TDD-6082). That is the way the Motorola and Station Master base station radials are atached. Extend the aluminum radial metal about 1 above the top clamp, tighten the clamps and then fold the 1 projection over to cover the SS clamp band. That way if the clamp loosens up a bit the radials wont fall off. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebh...@... wrote: Yes, that sounds like the antenna I have exactly, must be it. Looks like the general concensuss is to keep this one in service and not even bother trying the Diamond antenna. I don't have the radials though, but with this antenna I could even drill some holes in the collar that screws over the N connector and install radials that way. I bet that will help with the radiation pattern a bit. Thanks for all the assitance, as always, this is an awesome group. 73;s --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: You described mine like you were looking at it. - Original Message - From: wb6dgn tallinson2@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 9:16 PM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Hi Gerald and the group, I think I've got one of these antennas too. It has a white fiberglass radome, just under 7 feet long and about an inch in diameter at the base, coupled to an aluminum bottom section about a foot long and 1-5/16 inch diameter. A protective sleeve of the aluminum unscrews to expose an N female connector. The logo is a black rectangle with a white ellipse centered over it. There was probably a name written in that ellipse but it's no longer readable now. There is a serial number tag on the aluminum base but some of the numbers are no longer readable due to a clamp damaging the tag. It also has the radial assembly just as you describe. I see no other markings or frequency range marked on it but, if it was pulled from the system I think it was, most of the channels were in the 453/458 range with one or two in the 467 range. I suspect it'll work just fine on the ham band. The mounting clamps are missing but they should be pretty easy to scrounge; if anyone has spares, let me know. Where is the frequency range marked on the antenna? If I know where to look, I'll try to clean a little of the dirt or oxidation to see if I can find it. Looks like a nice antenna. There's an RFS version in the Tessco catalog that suggests that they might be the OEM parent of this antenna. Tom DGN --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: The radials just clamp on. Each one is bent to reach to the next. Small bolt fasten them together around the base. Gerald Pelnar WD0FYF McPherson, Ks - Original Message - From: gebhardstephen stevegebhard@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 1:41 AM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Thanks Gerald, that sounds like the one, except for the one I have does not have ground radials, and I don't see any place to install them either. I was contemplating changing the antenna to something like a Diamond F718A, it has better gain, almost double over the one I am using now, plus it is designed for the frequency I am on, I wonder if the small investment would yield better coverage. --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: I have one of those in the garage. TDE-6082A It's about 7 feet long (I didn't measure it) and has radials on it. Label says 460- 470. I used it temporarily on a 443.275 machine here at the house for testing. SWR wasn't bad and worked just fine. Gerald Pelnar WD0FYF McPherson, Ks - Original Message - From: gebhardstephen stevegebhard@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 1:13 AM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola That one is closer, but the length is wrong, and the one pictured has ground radials, this one does not. Without specifics I guess this is as far as I can go. What I am trying to do is see if this is the right antenna for a ham repeater on 447.425/442.425 split. As I said before, the SWR is OK, but I wonder if it is just operating on a multiple, and I am not getting the full gain that I should
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Forgot to mention if you can't find alum. for the ground plane elements at the local surpus yard or hardware store (HD or Lowes) see if you can find the city or county sign shop (the people who maintain the stop, yield and directional signs) as the may have pulls or damaged signs you can talk them out of. These are fairly heavy gage but usually soft alum. alloy and can be easily cut into strips with a carbide tipped blade on a small table saw with out any damage to the saw. Just make sure you put the alum. side against the metal mast stub as the sign side is a decal and you may not get the bonding you want for the radials. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebh...@... wrote: Good point, much easier to use a couple of clamps, and I just happen to have some stainless steel clamps here in the garage! Thanks for the advice. --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: Do your self a big favor and don't drill any holes. Use 1 or 2 large stainless steel hose clamps, slip 3 or 4 aluminum radials up between the clamp and metal antenna base (similar to what you see in the picture for the TDD-6082). That is the way the Motorola and Station Master base station radials are atached. Extend the aluminum radial metal about 1 above the top clamp, tighten the clamps and then fold the 1 projection over to cover the SS clamp band. That way if the clamp loosens up a bit the radials wont fall off. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Yes, that sounds like the antenna I have exactly, must be it. Looks like the general concensuss is to keep this one in service and not even bother trying the Diamond antenna. I don't have the radials though, but with this antenna I could even drill some holes in the collar that screws over the N connector and install radials that way. I bet that will help with the radiation pattern a bit. Thanks for all the assitance, as always, this is an awesome group. 73;s --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: You described mine like you were looking at it. - Original Message - From: wb6dgn tallinson2@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 9:16 PM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Hi Gerald and the group, I think I've got one of these antennas too. It has a white fiberglass radome, just under 7 feet long and about an inch in diameter at the base, coupled to an aluminum bottom section about a foot long and 1-5/16 inch diameter. A protective sleeve of the aluminum unscrews to expose an N female connector. The logo is a black rectangle with a white ellipse centered over it. There was probably a name written in that ellipse but it's no longer readable now. There is a serial number tag on the aluminum base but some of the numbers are no longer readable due to a clamp damaging the tag. It also has the radial assembly just as you describe. I see no other markings or frequency range marked on it but, if it was pulled from the system I think it was, most of the channels were in the 453/458 range with one or two in the 467 range. I suspect it'll work just fine on the ham band. The mounting clamps are missing but they should be pretty easy to scrounge; if anyone has spares, let me know. Where is the frequency range marked on the antenna? If I know where to look, I'll try to clean a little of the dirt or oxidation to see if I can find it. Looks like a nice antenna. There's an RFS version in the Tessco catalog that suggests that they might be the OEM parent of this antenna. Tom DGN --- In Repeater-Builder@yahoogroups.com, Gerald Pelnar wd0fyf@ wrote: The radials just clamp on. Each one is bent to reach to the next. Small bolt fasten them together around the base. Gerald Pelnar WD0FYF McPherson, Ks - Original Message - From: gebhardstephen stevegebhard@ To: Repeater-Builder@yahoogroups.com Sent: Friday, March 27, 2009 1:41 AM Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Thanks Gerald, that sounds like the one, except for the one I have does not have ground radials, and I don't see any place to install them either. I was contemplating changing the antenna to something like a Diamond F718A, it has better gain, almost double over the one I am using now, plus it is designed for the frequency I am
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Negative, but my guess would be Phelps Dodge. Maybe Celwave,or possibly DB Products. Maybe some of the other Guru's on the site can probably fill you in on that. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebh...@... wrote: Thanks Doug, actually I checked SWR on 442 Mhz and it is 1.2:1! Do you know who made this for Motorola? --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: It's a TDE-6082A, 5db gain, 460-470MHz. If ti is working properly it would be good for GMRS as is. Don't know what you would find in SWR in the 440 band but probably more then you would want to consider having. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Hi all, I have a UHF repeter antenna that was in use on 463 Mhz. I cannot find any information as to frequency range, max power, gain, etc. The last of the model # is E-6082A (The first part of the label is worn off and unreadable). I have done some searching and cannot find any information on a Motorola brand antenna. It is a fiberglass stick about 6 foot in length, with a N connector, and no ground radials. Does anyone out there have some infromation on this antenna, or know where I can find it? Thanks to all, and have a great day!
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Mark My info came from an old Moto. catalog. If it is about 8' OA long long with a N connector as he described on it it's not a mobile antenna. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mark n9...@... wrote: I'm confused. This was described initially as a repeater antenna but if I Google the Motorola part number, I see pictures of a mobile antenna. Which are we talking about? Mark - N9WYS -Original Message- From: Repeater-Builder@yahoogroups.com On Behalf Of n3dab Negative, but my guess would be Phelps Dodge. Maybe Celwave,or possibly DB Products. Maybe some of the other Guru's on the site can probably fill you in on that. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Thanks Doug, actually I checked SWR on 442 Mhz and it is 1.2:1! Do you know who made this for Motorola? --- In Repeater-Builder@yahoogroups.com, n3dab rb_n3dab@ wrote: It's a TDE-6082A, 5db gain, 460-470MHz. If ti is working properly it would be good for GMRS as is. Don't know what you would find in SWR in the 440 band but probably more then you would want to consider having. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, gebhardstephen stevegebhard@ wrote: Hi all, I have a UHF repeter antenna that was in use on 463 Mhz. I cannot find any information as to frequency range, max power, gain, etc. The last of the model # is E-6082A (The first part of the label is worn off and unreadable). I have done some searching and cannot find any information on a Motorola brand antenna. It is a fiberglass stick about 6 foot in length, with a N connector, and no ground radials. Does anyone out there have some infromation on this antenna, or know where I can find it? Thanks to all, and have a great day!
[Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola
Could be. Motorola spec say OA length for the TDE-6082A is *'. The Hi-Gain specs for the TDD-6082A on the RB site don't give the OA lengths for the different gain antennas, except to say max. length is about 22'. Unless there is some indication of the Mfg. on the remaining portion of the label or you can find more specs. for the Hi-Gain antenns it's just a guess at this point. Doug N3DAB -- In Repeater-Builder@yahoogroups.com, Bill Hudson w6...@... wrote: It could be a TDD-6082 See here: http://www.repeater-builder.com/antenna/mot-vhf-hi-gain-ant-specs.pdf Bill - W6CBS _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of n3dab Sent: Thursday, March 26, 2009 2:52 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Need information on a UHF repeater antenna made by Motorola Mark My info came from an old Moto. catalog. If it is about 8' OA long long with a N connector as he described on it it's not a mobile antenna. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, Mark n9wys@ wrote: I'm confused. This was described initially as a repeater antenna but if I Google the Motorola part number, I see pictures of a mobile antenna. Which are we talking about? Mark - N9WYS -Original Message- From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com On Behalf Of n3dab Negative, but my guess would be Phelps Dodge. Maybe Celwave,or possibly DB Products. Maybe some of the other Guru's on the site can probably fill you in on that. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, gebhardstephen stevegebhard@ wrote: Thanks Doug, actually I checked SWR on 442 Mhz and it is 1.2:1! Do you know who made this for Motorola? --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, n3dab rb_n3dab@ wrote: It's a TDE-6082A, 5db gain, 460-470MHz. If ti is working properly it would be good for GMRS as is. Don't know what you would find in SWR in the 440 band but probably more then you would want to consider having. Doug N3DAB --- In Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com, gebhardstephen stevegebhard@ wrote: Hi all, I have a UHF repeter antenna that was in use on 463 Mhz. I cannot find any information as to frequency range, max power, gain, etc. The last of the model # is E-6082A (The first part of the label is worn off and unreadable). I have done some searching and cannot find any information on a Motorola brand antenna. It is a fiberglass stick about 6 foot in length, with a N connector, and no ground radials. Does anyone out there have some infromation on this antenna, or know where I can find it? Thanks to all, and have a great day!
[Repeater-Builder] Re: Sinclair Q2220E
Yes, but we modified/replaced the loops in the cavities to get better performance. No changes were made to the harness as I recall. I don't recall the Pass/Rejectfigures at the moment (but they were comparable to other 4 cavity 2 mtr. duplexersor slightly better, but the duplexer has been operating on the K4SLB 2 mtr. rptr. in Kissimmee Fl for the last year and a half. You'll need access to a service monitor with a tracking generator at least to make the mod. It's a reasonably simple mod. and all that was required was some #14 Ga. bare copper wire, a soldering iron and your time and access to the SM. Other may have different ideas or suggestions. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Terry wx3m.te...@... wrote: Does anyone have experience using this model on 2 meters? Do they provide enough practical isolation for single antenna, 600kc split? (Sinclair Q2220E 4 Cavity VHF BpBr Repeater)
[Repeater-Builder] Re: Decibel dipole array sweeps
No luck accessing the website. Have you tested the DB420. I know they are pretty broad banded. I have a damaged one and only the top half is useable. What type of impedence mismatch am I looking at if I feed the top half at the mid point connector. And it if is way off, how would I correct it to bring it back to 50 Ohms +/- ?? Doug N3DAB
[Repeater-Builder] Re: Decibel dipole array sweeps
Jeff , I'm interested, however, I can't pull up the website you posted below for some reason. Also I'm curious about your findings with regard to using the upper half of atennas like the DB420 and impedance you are seeing at the mid point connector. I'm assuming the entire antenna presents a 50 +/-ohm load at the original feed point but what impedance do you actually see if you using the top half (of a damage antenna)and feed it at the mid-point connector ? Thanks Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote: I'm in the process of putting up a remote receiver for a 440 ham repeater. . The document can be found here: http://www.broadsci.com/Antenna Sweeps r1.pdf doc. --- Jeff WN3A
[Repeater-Builder] Intermod. question
Thanks to Chuck, Mark,and Greg for the suggestions on different lubricants to use. This will give me something to research and check-out. Thanks again. Doug /n3dab
[Repeater-Builder] Re: LMR-400 and Belden 9914 DuoBond
LMR400: Ctr. cond. is copper clad alum./ Dielectric is Closed Cell Foam PolyEthylene. (ccfpe)? Shield is Alum. foil (Not sure if it is bonded to the dielectric or not) Jacket is Polyethylene Class 111A. Belden 9914: Ctr. Cond. is Copper./ Jacket is PVC i believe./ Shield is Alum. foil Bonded to dielectric and Braid is Tinned copper i believe./ Dielectric I'm not sure about but it is very dense and closed cell. You can find all the specs. on the Belden and Times Cable websites. Doug n3dab --- In Repeater-Builder@yahoogroups.com, James Delancy ctra...@... wrote: Does anybody know any actual differences between these two cables (other than manufacturer, the obvious and the fact that the Belden actually seems to have a solid copper center conductor whereas the LMR-400 seems to be possibly steel core)? Thanks! Please don't flame me ... I know better than to use these in duplex service ... I just want to know more about them! James WJ1D
[Repeater-Builder] Intermod. question
A recent post concerning intermod created by rusty bolts, washers, etc. caught my attention the other day. Someone suggested using Lithium Grease on and between the components when assembling them. I understand the logic behind the suggestion, but I'm wondering if there is any other grease product that would be suitable and might hold up better to exosure to the sun, rain, etc. (something as heavy or heavier then wheel bearing grease) and still have the electrical conductivity of the litium. Doug /n3dab
[Repeater-Builder] OFF TOPIC - DOD Ends Sale of Expended Military Brass to Remanuctures
This post is OFF TOPIC, but if you value your 2nd Amendment rights you should read and act on this as you see fit. I recieved this from a friend and thought it was important enough to make an exception to the rule. Please let this be the only post on this subject on this site as the owner has granted me permission to post this item. I apologize for the length of the post and thank Kevin for his permission. DOD Ends Sale of Expended Military Brass to Remanufacturers* Sunday, March 15, 2009 /AND SO IT BEGINS.../ We all wondered when it was going to start. When the new administration would make their move against us as gun owners. Oh, everyone got upset about HR45--I'll bet I got over 100 e-mails warning me about this draconian gun registration bill that had been introduced in Congress. I was really glad to see Tom Gresham, host of Gun Talk Radio, an editor, writer, television host on Self-Defense TV, and one of the foremost gun spokespersons, come out and tell everyone to stop worrying about legislation so absolutely over-the-top--it would never get out of committee. Tom said save your energy for when we really need it--don't expend it trying to warn everyone in your e-mail list about legislation that would go nowhere. Now, Tom just interviewed me, and Larry Haynie, owner of Georgia Arms (www.georgia-arms.com http://www.georgia-arms.com/), on Gun Talk (www.guntalk.com http://www.guntalk.com/)--and Tom agrees, now is the time to ...unleash the hounds... by which he means start e-mailing and writing your senators and congressmen. Now it has come clear...now we know what they intend to do. It is an end-run around Congress. They don't need to try to ban guns--they don't need to fight a massive battle to attempt gun registration, or limit assault weapon sales. Nope. All they have to do is limit the amount of ammunition available to the civilian market, and when bullets dry up, guns will be useless. Think we jest? Here are copies of two letters sent to Georgia Arms just Thursday evening--effectively cancelling a contract he had to purchase 30,000 pounds of expended military brass in .223, 7.62mm, and .50caliber: /Dear Valued Customer: Please take a moment to note important changes set forth by the Defense Logistics Agency: Recently it has been determined that fired munitions of all calibers, shapes and sizes have been designated to be Demil code B.As a result and in conjunction with DLA's current Demil code B policy, this notice will serve as official notification which requires Scrap Venture (SV) to implement mutilation as a condition of sale for all sales of fired munitions effective immediately. This notice also requires SV to immediately cease delivery of any fired munitions that have been recently sold or on active term contracts, unless the material has been mutilated prior to sale or SV personnel can attest to the mutilation after delivery. A certificate of destruction is required in either case. Thank you, DOD Surplus 15051 N Kierland Blvd # 300 Scottsdale, AZ 85254 / ** /March 12, 2009 Larry Haynie Georgia Arms PO Box 238 Villa Rica, GA 30180 Re: Event 7084-6200: Dear Larry Haynie, Effective immediately DOD Surplus, LLC, will be implementing new requirements for mutilation of fired shell casings. The new DRMS requirement calls for DOD Surplus personnel to witness the mutilation of the property and sign the Certificate of Destruction. Mutilation of the property can be done at the DRMO, if permitted by the Government, or it may be mutilated at a site chosen by the buyer. Mutilation means that the property will be destroyed to the extent prevents its reuse or reconstruction. DOD Surplus personnel will determine when property has been sufficiently mutilated to meet the requirements of the Government. If you do not agree with the new conditions of your spot sale, please sign the appropriate box provided below stating that you do not agree to the new terms and would like to cancel your purchase effective immediately. If you do agree to the new terms please sign in the appropriate box provided below to acknowledge your understanding and agreement with the new requirements relating to your purchase. Fax the signed document back to (480) 367-1450, emailed responses are not acceptable. Please respond to this request no later than close of business Monday, March 16th, 2009. Sincerely, Government Liquidation. / ** Got that? From now on, remanufacturers of military brass will not be able to buy surplus brass from DOD--actually from Government Liquidators, llc.--the corporation that sells surplus materials for the U.S. government. At least, not in any form recognizable as once-fired brass ammunition. Now all brass ammunition will have to be shredded, and sold as scrap. Georgia
[Repeater-Builder] NHRC-2 controllers
Anyone out there have any NHRC-2 controllers (preferrably un built in kit form) they want to part with. Please send me an email at de_n3dab AT tds DOT net with the qty. and price, if you do. Thanks Doug N3DAB
[Repeater-Builder] DB antenna question
I'm running out of usable antenna mounting space here and was wondering if anyone has tried to do the folloing and with what results : 1. Superimpose a complete set of DB420 elements with the harness on a DB224 antenna mast, where both antennas arrays were active and each fed by its own rptr./duplexer. The elements on each band would be offset 90 degrees from each other. 2. Split a DB420 and feed the top half and bottom half independently with separate feedlines,rptrs and duplexers. I realize I would lose some antenna gain (9.2 Db to 6 Db) and some filter cavities for each system might be required. 3. Super impose a second set of DB420 elements, with independet feed line, on an existing DB420 antenna, but offset 90 degrees from the original set. If combining antennas as posed above is practical then I could gain additional space for 1 or more additional rptr's. or at least I could make the site look a little less cluttered. Thanks in advance for any constructive comments. Doug N3DAB/WPRX486/WPJL709
[Repeater-Builder] DB antenna question
I'm running out of antenna mounting positions at my site. Has anyone tried any of the following ideas and if so what were the results ? The intent here is to run 2 rptrs. using a common mast to support 2 antennas. 1. Mounting the dipoles and harness from a UHF DB420 on the same mast as a VHF DB224, or vice versa. (UHF and VHF antennas on the same mast) 2. Mounting the dipoles and harness from a DB420 on the same mast of an existing DB420.(2-DB420 UHF antennas on the same mast) 3. Taking an existing DB420 antenna and feeding the upper and lower halves with separate feedlines to make 2-6 Db antennas on the same mast. The lower harness section would be replaced with with the upper harness section from a junk antenna. In 1. and 2. the dipoles of each antenna would be at right angles to the existing antenna. In 3. the overall gain of the single antenna would be reduced to about 6 Db for the upper and lower halves. Additionally extra filter cavities would probably be required to keep the 2 rptrs. using the antennas from interfering with each other. If any of the above ideas are practical this would allow me to recoup some additonal mounting positions or at the least reduce the clutter of antennas I have now. All constructive comments will be appreciated. Doug N3DAB/WPRX486/WPJL709
[Repeater-Builder] Maybe a little OT
I'm putting Echolink on my rptr. I wanted to run the Echo Time program also, but found out from KH2D that it is no longer available, since he took a lightening strike last July on his system/server or something. From what I gather, he has no plans on reactivating it. Now i'm looking for another program that works like Echo Time and is compatible with Echolink. Does anyone know of a program that is available ?? Thanks Doug /N3DAB
[Repeater-Builder] Re: anyone know backdoor to csi tone panels
RE your message to Sk8ipp - Its not 2x3 method it is a 3x2 method. the first 3 digits are 356 the last 2 are 00 to 99. and you have to triy all of them to find the code it is locked up o( ei: 35600, 35601, 35602, etc.) you also have to wait at least 5 seconds between tries. Once you find the right code then you can enter the program mode and repogram everything including the code. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mike Dietrich [EMAIL PROTECTED] wrote: Thanks for the reply skipp, I had already seen your site from a google search. The 23 trick only puts the panel in the tone translation mode and you can't change anything else - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich M.DIETRICH@ wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
Re: [Repeater-Builder] Reasonably low wind load antenna
For anyone looking for a DB mast to mount their dipoles and harness on, check out all you commercial radio shops for damaged or pulled DB antennas. Don't worry about what band they are on - all you wan't is the mast anyway. DB's are sleeved internally at the center joint with exposed ends of the upper and lower mast sections being cut at a 45 degree angle. The sleeve is secured in the top mast section and slides into the bottom section about a foot. the top and bottom are secured together with 2 SS hose clamps. The base is also sleeved internally for clamp reinforcement. Another source would be a metal fabricator or aluminum supplier and purchase a 20' section of 1 3/4 0r 2 heavywall aluminum tube and mount your dipoles on it. Wall thickness should be 1/8 thick minimum top to bottom. If you can also pick up a 24 long section of tube to slip up into the bottom to reinforce the clamping area all the better. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Jim Cicirello [EMAIL PROTECTED] wrote: Ron, Thanks for the mounting information. I also lack the DB224 Mast that the four dipoles mount on. From my research the original is two pieces about twelve feet long that I believe bolt together, the diameter I have not been able to find. From the ones I have seen the mounting pole is quite robust. Do you have any pole stock that you could recommend that would hold the DB224 on a side mount configuration? As I recall although the mast was very rigid, it was quite lightweight. Thanks JIM KA2AJH _ From: Repeater-Builder@yahoogroups.com [mailto:Repeater- [EMAIL PROTECTED] On Behalf Of Ron Wright Sent: Tuesday, June 24, 2008 12:23 PM To: Repeater-Builder@yahoogroups.com Subject: Re: Re: [Repeater-Builder] Reasonably low wind load antenna Jim, The DB224 is usually supplied with 2 clamps where each clamp attaches to the DB224 mast and the other side clamps to the tower/mounting pipe. I believe these are made for 2-1/2 pipe. At www.tessco.com you can see pictures of these clamps and also purchase them although they are not cheap. They are very rugged galvanized clamps with 3/8-1/2 bolts 8 or so long and nuts. I would recommend looking on e-bay or someone here that might have them. Another mount is side mounts. For DB224 18 off the tower is typical. These have V shaped pieces one at each end of 2 pipes. The V is clamped to the tower and the other end the DB224 is clamped. You really need 2 mounts for this, one at the bottom and one near the top. Usually the top mount is a single pipe with C/U clamps to keep the antenna from swaying and the bottom holds the antenna weight. The DB 224 can be top mounted without the fear of the swaying in the wind damaging it unlike fiberglass antennas. I like putting top and bottom mounts when one can, but if top mounted not done for obvious reasons (there is no top, hi). 73,ron, n9ee/r From: Jim Cicirello [EMAIL PROTECTED] mailto:ka2ajh%40gmail.com com Date: 2008/06/24 Tue AM 11:11:02 EDT To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: Re: [Repeater-Builder] Reasonably low wind load antenna Hi Ron Another Question Please: I was fortunate enough to buy a good DB224 without the support mast. After following the opinions on wind loading, etc. I am wondering what can be used for a support mast and where the masting might be purchased? Any ideas? Thanks JIM KA2AJH - Original Message - From: Ron Wright To: Repeater- Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Sent: Tuesday, June 24, 2008 7:47 AM Subject: Re: [Repeater-Builder] Reasonably low wind load antenna Tony, First the Ringo-Ranger does not have the 7 dbi gain. To think a smaller 12 ft antenna would have about the same gain as one the size of a 4 bay dipole is not realistic. One note of info...antenna manufactures, especially from Japan, lie all the time. I would not use such harsh words except after years of this junk something needs to be said. I is said here on this board all the time for many know antenna performance here, hi. Your wind loading limits will require a smaller, lower gain antenna. If ice is a problem the Ringo-Ranger will probably not last that long. I would recommend going to www.tessco.com, a distributor of 2-way gear, and check thru their antenna section. They have a number of finnne manufactures with their specs. 73, ron, n9ee/r From: Tony VE6MVP [EMAIL PROTECTED] mailto:tony%40ve6mvp.com com Date: 2008/06/23 Mon PM 10:28:11 EDT To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com yahoogroups.com Subject: [Repeater-Builder] Reasonably low wind load antenna Folks We're moving a VHF amateur repeater to a 96' Trylon self supportingtower. The overwhelming opinion is that our current 210C4 four bayfolded dipole would be too much of a weight and wind load
[Repeater-Builder] Re: anyone know backdoor to csi tone panels
Sorry for the typo's but i guess you got the main idea. You have to read between the lines in the manual to find it (that is if you have the manual) if not there is one on the RB Site somewhere for the 32 and super 32. and i know i sent a copy of the 32plus to someone who was going to post it also but i still can't find it. Lots of uck and i hope that solved the problem. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mike Dietrich [EMAIL PROTECTED] wrote: Thanks Doug, The 23 is what skipp suggested by holding 23 then enter. This just allows you into the tone translation programming mode and you can't make any other changes in the params. I didn't even think about trying all of the last 2 digit combo's to find the right one, i'll try that. Tnx, MikeKB5FLX Specialized Communications - Original Message - From: n3dab To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 24, 2008 12:23 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels RE your message to Sk8ipp - Its not 2x3 method it is a 3x2 method. the first 3 digits are 356 the last 2 are 00 to 99. and you have to triy all of them to find the code it is locked up o( ei: 35600, 35601, 35602, etc.) you also have to wait at least 5 seconds between tries. Once you find the right code then you can enter the program mode and repogram everything including the code. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Mike Dietrich M.DIETRICH@ wrote: Thanks for the reply skipp, I had already seen your site from a google search. The 23 trick only puts the panel in the tone translation mode and you can't change anything else - Original Message - From: skipp025 To: Repeater-Builder@yahoogroups.com Sent: Monday, June 23, 2008 9:21 PM Subject: [Repeater-Builder] Re: anyone know backdoor to csi tone panels Mike, Check out my free web page on the subject... and after reading it I can answer questions as I am/was a Service Station for CSI Tone Panels. The back door code information is available on the page below. http://www.radiowrench.com/sonic/so02010.html and check out the Super 32 and CSI Plus information on the same sonic page section. http://www.radiowrench.com/sonic cheers, skipp skipp025 at yahoo.com Mike Dietrich M.DIETRICH@ wrote: Hi group, Does anyone know of a backdoor code or a way to reset the access code on the CSI-32 (not comm spec) tone panels? Any word on where the company went for support? They were in Lynnwood, Washington Thanks, Mike
[Repeater-Builder] Replacement loops for VHF db cavities
Think I may have asked this before, but does any one have a source for replacement Pass/reject loops for the DB40XX series VHF cavities. This would be the loop with the variable Johanson ceramic capaciter incorporated for adjusting the Notch. The cavities the loops mount in are about 20+/- tall and 4+/-in dia. and the loops mount in a recess in the top end. Any info concerning the constructio of same would be appreciated also. 73's Doug N3DAB
[Repeater-Builder] Micor repeater encoder and decoder boards
I'm trying to locate a TLN5731A PL encoder board and a TRN6002A PL decoder bd. for a UHF Micor Single User Repeater Station. Any one have a working set laying around that they would like to part with ? If so contact me off list please. Thanks Doug N3DAB
[Repeater-Builder] Re: Gmrs Repeater
This in response to shady1070's original question and Gary's reponse. Unless I've been misinformed for the past 30+ years the maximum autorized output power for GMRS is 50 watts from the Xmtr.(Base, Mobile and Repeater). There are power limitations on the interstitial freqs. but Repeaters are only permitted on the 8 designated pair $62/467.550 thu .725 in 25 KHz steps. Re: the original question about the rptr./controller set up I would suggest the Kenwood TKR-850 which has everything in one package Contoller, CWid, ctcss/dcs, computer programable, etc. and the Kenwood can be reprogammed down to the 440 band. GMRS rptrs. are not REQUIRED to ID, the GMRS user is, however if the all users operate under a single authorization/call sign CWid is allowed. Also, running a beacon type messages, voice or CWID, may be construed as non-directed traffic (broadcasting) by the FCC. There are many problems aaociated with building and installing a repeater including site location/acquisition, types of antennas, feed line, and duplexers to name a few. I believe you have a pretty good learning curve ahead of you. Wher are you located Shady? Doug N3DAB / WPRX486 / WPJL709 --- In Repeater-Builder@yahoogroups.com, Gary [EMAIL PROTECTED] wrote: well, first off, assuming your repeater is land based and qualifies as a fixed station (they usually do) then your output power is limited to 15 watts output, CFR Title 47 Part 95.135(d). Gary shady1070 wrote: I Am looking to put a 40 watt repeater on Gmrs. I Know very little about repeaters. I am looking for something That is Pc Programmable and also my biggest concern is about a controller. I want A Nice controller that does voice and I want to have the capabilities of a phone patch for later use on 440. How do you connect the controller to a repeater etc.. Can anybody recommend some stuff and help me out. I cann't find anybody locally that can really halp me with this project. Thanks Yahoo! Groups Links
[Repeater-Builder] DB VHF Cavity loop assemblies
I'm looking for 4 to 6 loop assemblies for replcement on a DB-4048 VHF duplexer. Freq. range not important as I can rebuilb or replace the copper loops. Assembly condition is not critical as long as the SO-239 threads are good and the assembly will seat in the 1.25 dia. recessed hole on the duplexer top plate. Anyone have any old junk DB cavities that you could scavenge the loop assemblies from ? Also does anyone have any photos, drawings or assembly details on how the loop assembly for the DB4960/4062 is put together (Ie: how is the tuning capacitor installed on the loop assembly?) My old catalog phots are not very clear. TIA for any assistance. Doug N3DAB reply direct to [EMAIL PROTECTED]
[Repeater-Builder] Kenwood TKR-750 rptr.
Can the tpye 1 TKR-750 Rptr. (146-174) be programmed and work on 144.570 Rx and 145.170 Tx (or even down to 143 to work on the MARS freq's.) if they are found to be NTIA compliant. Or should I really be looking for the the Type 2 rptr. (136-150)for this purpose. Also can anyone name a source or 2 for Kenwood rptrs that would give a discount price to Ham Clubs,ARES, etc. Thanks Doug N3DAB
[Repeater-Builder] Help: need to ID part on PSC-1422 Pwr. Sup.
Can anyone ID CR101 on the regulator board of a Wilson PSC-1422 Power Supply. What ever it was, it is completly burnt up, and I don't have a manual or schematic to look it up. Thanks Doug N3DAB
[Repeater-Builder] Wilson PSC-1422 Power Supply
Does anyone have any information on a Wilson PSC-1422 power supply ? This is a rack mount un metered unit and has the Astron name stamped on all (3) of the SCR's. I am curious about the max. and continuous duty rating for this unit. and amybe a schematic of it if it varies very much from a similar sized Astron PS. I'm guessing it 22-25 Amps max. and 14-15 Amps continuous. Does this sound right ? Thanks Doug N3DAB
[Repeater-Builder] TK-705D problem - slightly OT ?
I am using a TK-705D for the receiver side of a low power 2mtr. rptr. The 705 was working fine (Tx and Rx) and was sitting on the workbench idling in Rcv. mode ,with no mic. attached and no signal being fed into it thru the antenna port, and suddenly went into the TX mode. I have powered it on and off, removed it from the rptr. and powered it up indepndent of anything else but it remains locked up in the Tx mode. I cannot even do a reset on it as it won't accept the program when I power it up. I have been able to disable the power module and the IC-6 chip that preceeds it and disable the diode Tx/Rx antenna switch to eliminate any RF output, but something else inside the circuitry is telling the radio to stay in the TX mode. Can anyone advise me how to completely disable the Xmit side, so I can get it back in the Rx mode and continue to use it for the rptr. rcvr.? Thanks in advance for any assistance. Doug
[Repeater-Builder] Re: TK-705D problem - slightly OT ?
keith - I've looked at the jack on the front and there is nothing obvious shorting any og the pins. Checked pins against each other and against chassis grd with vom and no continuity between any 2 pins. Only continuity is @ pin 2 and 4 to chassis which should be normal as Pin 2 is a direct grd (E)and Pin 4 is Mic. grd (ME). Any other thoughts ? --- In Repeater-Builder@yahoogroups.com, Keith McQueen [EMAIL PROTECTED] wrote: Did you check for a shorted pin in the mic connector? Keith McQueen 801-224-9460 [EMAIL PROTECTED] -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n3dab Sent: Friday, November 23, 2007 3:56 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] TK-705D problem - slightly OT ? I am using a TK-705D for the receiver side of a low power 2mtr. rptr. The 705 was working fine (Tx and Rx) and was sitting on the workbench idling in Rcv. mode ,with no mic. attached and no signal being fed into it thru the antenna port, and suddenly went into the TX mode. I have powered it on and off, removed it from the rptr. and powered it up indepndent of anything else but it remains locked up in the Tx mode. I cannot even do a reset on it as it won't accept the program when I power it up. I have been able to disable the power module and the IC-6 chip that preceeds it and disable the diode Tx/Rx antenna switch to eliminate any RF output, but something else inside the circuitry is telling the radio to stay in the TX mode. Can anyone advise me how to completely disable the Xmit side, so I can get it back in the Rx mode and continue to use it for the rptr. rcvr.? Thanks in advance for any assistance. Doug
[Repeater-Builder] Re: KENWOOD TKR 750 Installation and problems-HELP!!
I believe it is called The Natioal Elevator Code which supplements the N.E.C. and it doesn't permit anything other than elevator equipment,wiring and controls in either ther shaft or equipment rooms. N3DAB --- In Repeater-Builder@yahoogroups.com, Nate Duehr [EMAIL PROTECTED] wrote: On Oct 30, 2007, at 3:09 AM, skipp025 wrote: ... which is a big Non-Code no-no. If anything ever happens in those buildings and it's traced back toward pretty much any non- code installed wire or equipment within the elevator shaft... you will need multi million dollar liability insurance. It happened to at least one very large Company I know about... now long out of business. s. What's non-code or dangerous about it? Last I looked, there's very little in the NEC about RF cabling. It's considered low-voltage and thus, almost unimportant in most States. Of course, the nannies keep passing laws against just about anything, so maybe I missed it. Genuinely curious (how stupid are our codes now?), -- Nate Duehr, WY0X [EMAIL PROTECTED]
[Repeater-Builder] Replacement Ferrite Cores
Greetings All - Looking for some replacement ferrite cores. Need 2 sizes: 6mm x 3mm and 8mm x 4.5mm. Need a couple of each size. Can anyone out there provide a source for these or maybe part with a few from the personal stock ?? Thanks Doug N3dab
[Repeater-Builder] VHF to UHF mod. for duplexer
Since the Question has been raised, I have a Sinclair VHF Q2220E that I would like to use on the UHF band. Can any one point me to a mod. page or funish info as to how they succesfully modded there Q2220E for operation in the UHF band. I assume the loops and harness would require modding but have no idea about the tuning rods, capaciters or the aluminum extruded cavities. PS : I also posted a noted asking about a source of Motorola T1500 series passband coupling loops (.5 to 1.0 dB IL). I'm just looking for the loops but will take complete can(s) if they are reasonable. Thanks Doug N3DAB
[Repeater-Builder] UHF T-1500 series pass band loops
Looking for 2 to 4 sets of pass band loops for UHF (450-470) Motorola T1500 series cavities (2 loops per cavity = 1 set). Anyone have any to spare ? If so furnish quantiy and price per set, if applicable. Doug N3DAB
[Repeater-Builder] CSI -32 info for the group (SOT)
Many months ago I asked the group about a back door method for the CSI-32 multi-tone controller panelto enter the progamming mode, as I had a friend with a CSI-32 in which the access code was reprogammed and the new code had been lost or forgotten. I recieved several replies from the group but nothing seemed to work. Fortunately we were able to pull the chip out of one I had, read and copy copy it and insert it into my friends unit to get it working again. Below is copy of a procedure that I recently forwarded to another friend with a CSI-32 who had a similar prolem, this will work with out copying someone elses chip, (The info below should be edited and posted in the CSI section of the RB site for future reference.) This may also work on the CSI-32 super and CSI-32Plus as well. The link below will take you to the Repeater Builder Website and the .PDF file for the CSI- 32 Controller Manual. If you don't have a copy of the manual, print out a complete copy for yourself first. Then carefully read paragraph 5.10 on resetting the Programming Access Code. The Default setting is35687. It states that you can only change the last 2 digits of the code, however you can also use the A,B and D characters from the 4th row of the DTMF pad in the modified the access code string. If you can't enter the program mode using the Default No. 35687 then enter 35600 thru 35699 (100 combinations) or 356 A/B/D 0 thru 9 (30 combinations) or 356 0 thru 9A/B/D (30 combinations). There are 160 total combinations. You must wait 5 seconds between entering these combinations. After you finally locate the correct combination to unlock the Controller and place it into the programming mode write that number down on a peice of paper, and/or reprogram the access code back to the Default No.35687 so you don't have to go thru the whole process again if you lose or forget the code. Hope this helps someone else out there who has a CSI controller collecting dust because they can't reprogram it. 73 Doug N3DAB http://www.repeater-builder.com/other-mfrs/csi-32.pdf
[Repeater-Builder] Re: WTT or sale Andrew dB224 antenna
Chuck - Try David Jones K4DLJ he is in your general area and does tower work. E-mail k4dlj at bellsouth dot net or look him up QRZ dot COM and see if you can find a tele. no. for him in the white pages. He may have some tower pulls that will meet your requirements. I pick up a clean DB224E from him about 2 years ago. Doug N3DAB / WPRX486 --- In Repeater-Builder@yahoogroups.com, chuckmf1135 [EMAIL PROTECTED] wrote: --- In Repeater-Builder@yahoogroups.com, allan crites wa9zzu@ wrote: Sounds like what im looking for but the shipping would be to great. I live in N.C. near Charlotte, this antenna breaks down into 2 - 10' sections. I found out UPS will not ship it and that means it would have to go by freight shipping which is unresonable. Chuck/N4aeq Have Scala 890-960 Mhz paging antenna will trade. Appears to be model OGB3-900 and is 60 long and I measured VSWR on my N/A of 1.5:1 over 890-990MHz range. Advise further. chuckmf1135 nbc@ wrote: Have Andrew dB224 4 bay vertical in good condition, ready for use in 155-165mhz,was used on 158mhz. Would like to trade for 9xx mhz paging antenna or any old Cushman plugin or parts. This is long 21' but breaks down to around 10 foot. Phasing coax in in very good condition and has NM connector.
[Repeater-Builder] wanted ISD1420p Voice chip
I am looking for 2 or more ISD 1420p voice chips. Does anyone have any they can part with. Contact me on or off the group with price and quantity available if you can help. TIA Doug n3dab @ arrl . net
[Repeater-Builder] Mitrek mobile repeaters
Someone posted a message recently saying they had several of the Canadian made Motorola Mitrek Mobile Repeaters in service and they were used for link radios. I can't seem to locate that post for some reason and would like to contact the person and see if he has any service manuals ,etc. for them as I have one of those radios also but no info. on it. Can anyone could give me the message # or furnish some contact info. Thanks for any help. Doug N3DAB
[Repeater-Builder] Old Sinclair Duplexer
Anyone have any info on the following VHF duplexer listed below. The data was copied from the label. It is inside a large enclosure, is quite old, but serviceable. I don'thave the duplexer in my possesion at this time so what you see below is all I have. I can't find this Model no. on Google, Repeater Builder or the Sinclair sites. I would like to know what the tuning range is and what type duplexer this is (pass/pass-reject/reject ,hybrid ...?).Thanks in advance for any help. Sinclair Radio Lab Filter Duplexer FL150-4 Serial Number 513-7 TX 160.950 RX 161-520 Doug N3DAB
[Repeater-Builder] Re: GE PA numbers
Thanks for the reply. There appears to be a conflict between your reply and the one from Eric which states it is a 65W continuous duty vhf PA and cites the LBI no. for it. Will have to do more research. --- In Repeater-Builder@yahoogroups.com, Butch Kanvick [EMAIL PROTECTED] wrote: The 19D424786G6 is a 40 watt (simplex) UHF power amplifier, and I was unable to find the other number. I hope this helps, Butch, KE7FEL/r From: n3dab [EMAIL PROTECTED] Reply-To: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] GE PA numbers Date: Sun, 18 Feb 2007 03:40:20 - Can anyone ID these GE M2 PA numbers: 417524G4 and 424786G6 Would like to know if these are VHF or UHF, the freq. range within the band and output power. TIA
[Repeater-Builder] Re: GE PA numbers
Thanks Eric, I'll check the RB library as suggested. --- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED] wrote: The 19D417524G4 is a 100/110 watt continuous-duty PA for the 150.8- 174 MHz band. See LBI-30282B here: www.repeater-builder.com/ge/lbi-library/lbi-30282b.pdf The 19D424786G6 is a 65 watt continuous -duty PA for the 138-174 MHz band. See LBI-30748C here: www.repeater-builder.com/ge/lbi-library/lbi-30748c.pdf 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of n3dab Sent: Saturday, February 17, 2007 7:40 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] GE PA numbers Can anyone ID these GE M2 PA numbers: 417524G4 and 424786G6 Would like to know if these are VHF or UHF, the freq. range within the band and output power. TIA
[Repeater-Builder] Re: S-Com voting encoder
Only other info I have is the unit ser. no. and mfg. date of 5-15- 75. All this and previous info is from mfg's.label on rear of unit. The unit has 2-12 pin molex tpye connectors and a 20 position terminal strip on the rear. A series of switches and knobs on the front control power vol.,squelch,channel etc. There are no other mfg's. id on the unit other than S-Com. --- In Repeater-Builder@yahoogroups.com, skipp025 [EMAIL PROTECTED] wrote: That's an odd one... but it might be related to the CSC Encoder of which there is a manual on the Repeater Builder web page in the voter section. When RCA gave up Land Mobile there were a number of smaller companies that I consider off shoots of their LMR Product Line. Someone out there knows the the history of Coded, Codec, CSC, RCATec, TacTech (might be TacTec or TacTeck (we always called them tic-tac. Vega Signaling and others... Some of those companies are still around, just merged into larger animals with different names. Some day I'll get those RCA radios out of the back room to see what they do... they looked like GE Master radios and I could bear to see them go into the dumpster when they arrived as trade in... some day... s. n3dab rb_n3dab@ wrote: Can anyone furnish a copy of the service/operation manual for a S- Com voting encoder , Model # VEC-2B, Mfg. by S-Com/TPE in Sun Valley, Ca. TIA for any help.
[Repeater-Builder] GE PA numbers
Can anyone ID these GE M2 PA numbers: 417524G4 and 424786G6 Would like to know if these are VHF or UHF, the freq. range within the band and output power. TIA
[Repeater-Builder] S-Com voting encoder
Can anyone furnish a copy of the service/operation manual for a S-Com voting encoder , Model # VEC-2B, Mfg. by S-Com/TPE in Sun Valley, Ca. TIA for any help.
[Repeater-Builder] Vertex VXR7000 UHF Service Manual
Does anyone on the list have a service manual for the UHF Vertex VXR 7000 Repeater (#E-13689000) that they can part with or copy and mail. Thanks in advance. N3DAB
[Repeater-Builder] Wanted Micor elements on 443.750 rptr pair
To the group, Lookig for good working set of xtaled elements for a Micor Rptr. Station. I need 1. KXN1052A Tx on 443.750 Mhz and 1. KXN1024A Rx on 448.750 Mhz. I will consider just the xtals if thats all you have but prefer complete factory or ICC re-xtaled and compensated elements. TX Fo = Fc/36 = 12.326388 and for Rx Fo = Fc-11.7/24 = 18.208333 Please contact me off list at [EMAIL PROTECTED] if you have a good pair of pulls just laying around. N3DAB
[Repeater-Builder] Re: Wount To Find Out About Buiding A New Repeter
Jim, First add all the System Gains (SG)in dbW measurements, from that figure you then subtract all your Sytem Losses (SL)in dbW, the result equals your ERP in dbW. Convert the ERP in dbW back to ERP in Watts. Before you start adding the SG you must convert your Tx output pwr. from Watts to dbW. (ie 50w=17.0dbW) I use a Conversion Table that is included in some old Rptr. coord, papers, however you should be able to find a conversion table or the mathematical(sp?) formula on Google or on one of the Rptr. Bldr. site pages. Therefore the following example: 1. 50w Tx out=17.0dbW + ant. gain 9.2 dbW = Tot. SG 26.2dbW 2. Ant. FL lgth. /100 x loss per 100' at you freq band = Tot/FL loss in db. (50 /100x1.04 = .52dbW (1/2LDF @ 450mhza=1.04db/100'). 3. Duplexer insertion loss = 1.5 dbW 4. Other losses = 0.0dbW 5. Tot. SL (.52+1.5) = 2.02dbW 6. Tot. SG (26.2) - Tot. SL (2.02) = Tot. ERP in dbW (24.18dbW) 7. Convert ERP in dbW back to ERP in Watts (24.18 = 250+ Watts ERP. Note: Some interpolation of the tables I use is required. Feedline looses per 100' @ given freq. are generally provided by the mfg. If you would like a copy of my work sheet (Tables included) email me direct. N3DAB/WPRX486 GMRS/WPJL709 LM --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: n3dab [EMAIL PROTECTED] wrote: You can go to the FCC site and pull Part 95 like I just did and read it for yourself. I'm running 50w from my Micor rptr. xmtr. with 1.5db loss from a MOt. 1504 duplexer into 50' of 1/2' LDF4-50 heliax to a DB410 9.2db gain omni antenna. This all calculates out to approx. slightly more than 250W ERP. This machine has been in service for at least 25 years on 462/467. 675 in the Atlanta Ga. area N3DAB/WPRX486 GMRS/WPJL709 LM Doug, Can you show us your formula for converting power output to ERP? I guess, power out(watts) - (1.5db)+(50' of LDF$-50)+9.2db=ERP output. More details please. Thanks. 73's, Jim Kh6jkg. __ Switch to Netscape Internet Service. As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Wount To Find Out About Buiding A New Repeter
--- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: I question that 9.2 dB antenna, is it actually 9.2 dBd or 9.2 dBi ?? Neil - WA6KLA Neil, From the DB products data sheet posted by Steve NU5D it's dBd. But the work sheet I use doesn't differenciate. The work sheet is page 2 of the South East Repater Association (SERA) Fm 03 used for coordination purposes. See http://www.sera.org/Form_03_Jan07_2006.pdf I use it for reference because it's simple and pretty straight forward for some one like me who doesn't have the knowledge and experience of others, like yourself. 73 Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Wount To Find Out About Buiding A New Repeter
Last time I checked Part 95 it said 50w max. from the tansmitter not 50w ERP from the antenna. When did it change? With the min. losses for the duplexer,connecters and feedline and max, gain on antenna and radiation pattern he could achieve 200w ERP or more. Doug N3DAB/WPRX486 GMRS/WPJL709 LM --- In Repeater-Builder@yahoogroups.com, Vincent Caruso [EMAIL PROTECTED] wrote: Problem #1 is that on 462.675 / 467.675 GMRS you cannot go over 50 watts ERP with a proper antenna system you should be able to achieve 50Watts ERP with your current machine. Problem #2 is that you cannot reverse the input /output on repeater pairs since it will wreak all sorts of havoc with co-channel users and on GMRS there are probably lots of them. If you are an emergency response entity that needs that type of output power, why not get a coordinated pair on special emergency or in the business band. National Emergency Assistance Radio Team Headquters wrote: Date :05-29-2006 Time :8:00 PM CST From :Lige Turner Repeter-Builder I,m Am A GMRS Radio Operater And I Would Like More On How To Build A UHF-FM Land Mobile Radio(LMR)Repeter That Will Put Out 100 Watts ERP Output And Would Work On The Input Frequency 462.675 Mhz CTCSS Tones 141.3 Hz And Output Frequency 467.675 Mhz With A CTCSS Tone 141.3 Hz And The Repeter Controle I Would Reather Not Have Any DTMF Tone Cods Becose Some One Here In Kansas City Missouri Has A Tone Burst System And Has Try To Get Into My Low Power Repeter Whitch Is Only 25 Watts ERP Low Power Yes This Is For The Emergency Frequency On GMRS Radio My Call Sine KAF-2106 And I,M The Head Of A Not-For-Profit Organization National Emergency Assistance Radio Team,Inc. I Will Probley Buy The Parts One At A Time Becose Of How Much The Cost Of What I Need To Build A Good Repeter It May Take A While To Get It On The Air And Shut This 25 Watt ERP Repeter Down Lige Turner KAF-2106 73 All Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Wount To Find Out About Buiding A New Repeter
You can go to the FCC site and pull Part 95 like I just did and read it for yourself. I'm running 50w from my Micor rptr. xmtr. with 1.5db loss from a MOt. 1504 duplexer into 50' of 1/2' LDF4-50 heliax to a DB410 9.2db gain omni antenna. This all calculates out to approx. slightly more than 250W ERP. This machine has been in service for at least 25 years on 462/467. 675 in the Atlanta Ga. area N3DAB/WPRX486 GMRS/WPJL709 LM --- In Repeater-Builder@yahoogroups.com, Vincent Caruso [EMAIL PROTECTED] wrote: I didn't think so... Johnny wrote: It hasn't changed. Some people get confused about the difference between ERP and straight RF power. Johnny n3dab wrote: Last time I checked Part 95 it said 50w max. from the tansmitter not 50w ERP from the antenna. When did it change? With the min. losses for the duplexer,connecters and feedline and max, gain on antenna and radiation pattern he could achieve 200w ERP or more. Doug N3DAB/WPRX486 GMRS/WPJL709 LM --- In Repeater-Builder@yahoogroups.com, Vincent Caruso vcaruso@ wrote: Problem #1 is that on 462.675 / 467.675 GMRS you cannot go over 50 watts ERP with a proper antenna system you should be able to achieve 50Watts ERP with your current machine. Problem #2 is that you cannot reverse the input /output on repeater pairs since it will wreak all sorts of havoc with co-channel users and on GMRS there are probably lots of them. If you are an emergency response entity that needs that type of output power, why not get a coordinated pair on special emergency or in the business band. National Emergency Assistance Radio Team Headquters wrote: Date :05-29-2006 Time :8:00 PM CST From :Lige Turner Repeter-Builder I,m Am A GMRS Radio Operater And I Would Like More On How To Build A UHF-FM Land Mobile Radio(LMR)Repeter That Will Put Out 100 Watts ERP Output And Would Work On The Input Frequency 462.675 Mhz CTCSS Tones 141.3 Hz And Output Frequency 467.675 Mhz With A CTCSS Tone 141.3 Hz And The Repeter Controle I Would Reather Not Have Any DTMF Tone Cods Becose Some One Here In Kansas City Missouri Has A Tone Burst System And Has Try To Get Into My Low Power Repeter Whitch Is Only 25 Watts ERP Low Power Yes This Is For The Emergency Frequency On GMRS Radio My Call Sine KAF-2106 And I,M The Head Of A Not-For-Profit Organization National Emergency Assistance Radio Team,Inc. I Will Probley Buy The Parts One At A Time Becose Of How Much The Cost Of What I Need To Build A Good Repeter It May Take A While To Get It On The Air And Shut This 25 Watt ERP Repeter Down Lige Turner KAF-2106 73 All Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola Service Manuals
Wanted: If anyone reading this post has a spare copy or original service manual for the following Motorola radios please email me direct with what you have and cost plus postage. Maxtrac UHF/VHF mobile Mitrek Low Band 30-50mhz MSF5000 UHF repeater TEK-5f Test Set TIA Doug N3DAB at ARRL dot NET Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Hypothetical dipole antenna question
73 to the Group. Since there is a current discusion ongoing related to dipole antennas I would appreciate any comments about the hypothetical situation below: Asumming a DB224E antenna with 4 dipoles, top mounted on a tower, and a coverage area that is a 270 degree arc (E,S and W.) from the antenna, the remaing 90 degree segment (N.) being blocked by nearby and much higher terrain, what is the best orientation of the dipoles on the mast to provide the max. coverage to the 270 degree arc. all other things aside. All dipoles aligned on one the S.face of the mast. 2 dipoles facing S., 1 facing E. and 1 facing W. @ facing SSE. and 2 facing SSW. 1 E., 1 SSE., 1 SSW., and 1 W. or some other arrangement TIA Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Hypothetical dipole antenna question
Charles, Thank you for response. It prety much confirms my suspitions but I didn't have a modeling program to check it out My inent was to install the dipoles as indicated in my 2nd arrangement 1 E./1 w. and 2 S. in that order top to bottom. Your option 1 and 2 are clear but I'm not sure I fully understand the arrangement in you 3rd option. Can you give me the orientation from top to bottom of the 4 dipoles based on the compass bearing each is pointed to, with N. being 0 degrees for option #3. Again thanks and 73 Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Charles Miller ham- [EMAIL PROTECTED] wrote: Doug, I have 3 patterns for you. First, If you do not want any signal to go N and the signal equal around to the South then take the dipoles and place them in a 60 degree orientation. The 2 on the top section should be 180 from each other to the East and West and the 2 on the bottom should set at a 60 degrees. The 2 lower dipoles should be aligned 30 degrees to the east and West of the South alignment. This will give you a fairly good pattern for the area that you want to cover. The second pattern that will work is to place the dipoles in a 70 degree pattern. Using South as the Zero degree alignment, 1 each at 35 degrees to the East and West and the others at 70 degrees past that. This will leave a 150 degree arc or 75 degrees off North. This will provide a little to the North but not very much. The first or second will work very well. If you need a little more to the south then take the top at 180 degrees and the bottom towards the south at 90 degrees. This will give you a little more gain to the South than to the East and West. We had to do this in South Texas to keep a FED signal out of Mexico. The first is the one we used and it is still in use today. Charles Miller - Original Message - From: n3dab [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Saturday, April 08, 2006 1:23 PM Subject: [Repeater-Builder] Hypothetical dipole antenna question 73 to the Group. Since there is a current discusion ongoing related to dipole antennas I would appreciate any comments about the hypothetical situation below: Asumming a DB224E antenna with 4 dipoles, top mounted on a tower, and a coverage area that is a 270 degree arc (E,S and W.) from the antenna, the remaing 90 degree segment (N.) being blocked by nearby and much higher terrain, what is the best orientation of the dipoles on the mast to provide the max. coverage to the 270 degree arc. all other things aside. All dipoles aligned on one the S.face of the mast. 2 dipoles facing S., 1 facing E. and 1 facing W. @ facing SSE. and 2 facing SSW. 1 E., 1 SSE., 1 SSW., and 1 W. or some other arrangement TIA Doug N3DAB Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Hypothetical dipole antenna question
Charles, Sorry for the confusion and being a little dense this evening. After reading your option 3 several more times I see you are saying the same thing I said in my arrangement #2. Again thanks Doug N3DAb Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Henry UHF PA tuning
Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Henry UHF PA tuning
As stated in the original message this was into a dummy load. Reflected pwr. was minimal across all the freq's. 440 to 470. If this isnt field correctable it will go back to Henry along with all the bench notes. Doug --- In Repeater-Builder@yahoogroups.com, Mathew Quaife [EMAIL PROTECTED] wrote: First thing you need to mention, is did you do this test into an antenna or into a dummy load? If in to an antenna, as the SWR goes up, so will the power. If into a dummy load, then it shows it is narrowed for the 450-470 Mhz band, and it would be best to consult them about it. But from what others have said, there amps are very broad banded, at least all that I have read. Mathew n3dab [EMAIL PROTECTED] wrote: Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB Yahoo! Groups Links - Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1cent;/min. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Henry UHF PA tuning
Thanks for the input. Doug --- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] wrote: Henry uses all fixed capacitors in their amps. Whether they change values for specific band portions, or adjust the coils, is unknown. I bought a C100D10R amp from them and asked that it be tuned to 444.450 MHz and also wanted female N connectors on it. They gave me exactly what I asked for and it gives me 80 watts out with 7 watts in, and that's going into a duplexer then into an antenna. I also had a C80D3 amp on 460-something that I sent to them. They removed the pre-driver (turning it into a C80D10), tuned it to 444.450, Installed female N connectors, and sent it back with a manual and a new power cord, all for about $85. They seem to be very good answering e-mails, so I'd write to them and inquire, but only after verifying that the amp is not performing to specs on the bench with a good dummy load and adequate drive and power. Bob M. == --- n3dab [EMAIL PROTECTED] wrote: Greetings to the group, Does any one have any specific info on retuning a Henry C200D10R UHF 450-470 rack mount PA into the 440 band ? The PA requires 5-10w to produce 100-200w out. I can see nothing inside that is adjustable, all the components are fixed value and securely soldered in place. The only thing that might be adjusted is the spacing of the coils on 4 wire wound chokes, 2 near the input and 2 near the output. The PA belong to a friend who purchased it used from a 3rd party, had it shipped to Henry to put on 443.750, and return for use. A simple bench test into a 50 ohm dummy load shows that (using a IC2400 mobile on low power) 8-9w in at 443.750 yields about 45w out but as I increase the freq. to 462.750 the IC2400 pwr drops to 5-6 w (which I would expect from from the mobile being out of band) but the PA output pwr. jumps to over 100w. My suspicion is that Henry did nothing but make sure it was working in the deigned band range(450-470) and slap a new label on it and send it back. Will compressing the choke coils closer together make any difference in the freq. range, or do some of the fixed components need replacing. I know the choke compression worked in retuning a ARR 450- 470 preamp to move it to 440 (per ARR directions). If so, how close should the coils be spaced ?? TIA for any help Doug N3DAB __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Info wanted on Mitrek VHF rptr.
73's to the Group The following info appears on a MITREK VHF Mobile repeater. This is a factory (Motorola) built product, NOT an after market modified mobile radio. Can anyone provide any information or documentation on this repeater ? Local searches thru Motorola shops have produced nothing. On the ID plate: Prim. Pwr. 12v Motorola Canada Ltd. Doc. No. 109191038X MITREK Type JJA Watt 2-10 Mod. No. MX23JJA1106BAZ Ser. No. 533PKN1018 Motorola Inc. Made in USA On chasis behind handle:HUD1052CPR On the PC bd. near Rcvr.elements: HLD4082BPR On frame near Tx elements: HLD1002BPR On Controller/PL bd.: TKN9539BAZ On PA bd.: HLD4124APR and TLD5591BAZ Label on top cover reads: Mobile Communications and has a AGT logo. Probably installed by the service shop. The Rcvr is fed thru the SO239 on the front of the Chasis, the Xmtr is fed out a SO239 on the left rear of the heat sink casting and the recess for it was part of the casting process. This repeater appears to function with the standard control head and cable, though I don't have the original but have had it bench tested for operation. TIA for any and all help Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Can anyone identify this?
rick, You might try locate a VHF Micor mobile on Ebay, etc.out of Canada, They operate alot of VHF equip in the 136-150 band. Most of the boardis are intercangeable with the ones in the Micor Base Station/Repeater chasis. I swapped the 150 band Rcvr in my non- unified VHF rptr with one from a 136 band mobile. Just plug and play. With a little effort I think you can do the same with the Xmtr bds. as well. My rptr came with a 136 band Xmtr set up. The PA is a different story. Just a thought. 73 Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED] wrote: Rick, The front view shows the PA board, which confirms that your Micor is a 60 watt, intermittent duty base station, with a non-unified chassis. The repeater version has additional shielding and filtering to permit duplex operation, but many units are able to operate full duplex without them. However, the cover for the PA is missing and should be replaced. The Micor VHF stations were made in four basic splits: 132-142, 142- 150.8, 150.8-162, and 162-174 MHz. Obviously, the 142-150.8 MHz, AKA the M split, is the most desired for 2m application, but the most common split found on the surplus market is the 150.8-162 MHz split, AKA the H split. There are bandpass filters in the exciter and the PA that are different between the M and H splits, and may need to be replaced or re-tuned to perform optimally on 2m. The RBTIP on this site is a goldmine of information for converting a Micor station to 2m. Although you did state that the station was already set up for 2m, it does happen that a group will simply re-crystal the station and find that it seems to work okay after tuning- but it never performs as well as it could because of these filters. It may be that all of those mods have already been performed, but it never hurts to check! 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Rick Stirling Sent: Saturday, March 18, 2006 12:18 PM To: Rick Stirling; repeater-builder@yahoogroups.com Subject: Re: [Repeater-Builder] Can anyone identify this? Resending this ... original email to list apparently didn't make it Rick Stirling wrote: Eric, Looks like TLX1666A stamped in the lower left corner of the backplane. Also found TRD1803BB and TLN8747A? stamped on receiver frame on back right side. Power Suppy has TPN1110B on it. Here are two overall images of front and back ... http://www.rickster.org/pics/front.jpg http://www.rickster.org/pic/back.jpg The flying leads in the back are connected to a phone patch unit that will be removed. The system is currently working as a 'plain- jane' repeater on 147.300 - 147.900 with a Wacom WP-641 duplexer Things are a wee bit slow around here this AM ... my T1 wireless went down overnight and the backup dial-up connection sucks dead gerbils! Thanks for the help guys! 73, Rick AE7RS On 3/17/2006 8:33:06 PM, Eric Lemmon ([EMAIL PROTECTED]) wrote: Rick, Offhand, it looks like a 60 watt, intermittent duty base station. If it were a repeater station, there should be shield plates covering the receiver. It might also be a paging station. Look for any numbers stamped in black ink along the edges of the backplane and on the power supply or on any sheet metal parts. Any string of three letters and four digits, usually starting with T, are important. Also look for any tag or label with a number of the form C53RTB3106A (the letters and numbers may be different) which is the model number. Some overall photos of the front and back will help a lot. 73, Eric Lemmon WB6FLY Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Motorola TEK-5E test set, slightly OTT
Greetings to the group, I was trying to tune some Mitrek rcvr's. using the service manual procedure and a TEK-5E test set ( big box with 8 meters on it). The Mitrek manual says to set meters 1 and 2 to reverse for some of the tuning steps. Now my problem, there is NO reverse switch on this test set, even though the manual says it is one that can be used for Mitreks. I was used the C setting an the selector switch, should I have used the A setting instead ? The manual implies that you flip a forward /reverse switch on the test set. My question is simple. What is the simplest to provide the reverse meter readings for meters 1 2 in this peice of gear. drill the box and install a series of DpDT swicths for each of the required meters or are there any other solutions out there. TIA for any helpful info. Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Motorola TEK-5E test set, slightly OTT
Neil, Thanks for the reply. The 5 position rotary switch is in the lower left corner and the positions are marked A' thru E but no reference to reverse readings. If and when you have the oportunity to pull your TEK manuals out and review them I would really appreciate knowing what you find out, and possibly getting a copy of the manual from you for my files and reference (hard copy thru snail mail, email, fax, whatever is convenient for you). 73 Doug N3DAB PS: you can contact me off list at n3dab @ arrl . net --- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: I have a couple of the earlier TEK-5 metering panels ... when the Micor test modification is installed, there is, I believe, a five position rotary switch in place of the 0-10 / 0-20 VDC meter on the lower left hand corner of the earlier panel. You might try different positions of this switch to obtain the meter polarity reversal you need. BTW, I haven't studied either of my TEK-5 metering panels or the associated manuals to determine a correct answer for your question. Batteries not included / your mileage may vary / smoke test to be performed after the 11 o'clock news. Hope this helps, Neil - WA6KLA Original Message From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Motorola TEK-5E test set, slightly OTT Date: Fri, 17 Mar 2006 22:33:32 - Greetings to the group, I was trying to tune some Mitrek rcvr's. using the service manual procedure and a TEK-5E test set ( big box with 8 meters on it). The Mitrek manual says to set meters 1 and 2 to reverse for some of the tuning steps. Now my problem, there is NO reverse switch on this test set, even though the manual says it is one that can be used for Mitreks. I was used the C setting an the selector switch, should I have used the A setting instead ? The manual implies that you flip a forward /reverse switch on the test set. My question is simple. What is the simplest to provide the reverse meter readings for meters 1 2 in this peice of gear. drill the box and install a series of DpDT swicths for each of the required meters or are there any other solutions out there. TIA for any helpful info. Doug N3DAB Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Can anyone identify this?
More pictures, front and back, and part nos. from diferent components would help with the ID, but it looks to me like an old version (non- unified chasis) Micor to me. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Rick Stirling [EMAIL PROTECTED] wrote: We have a repeater given to our club. It is more or less in working condition on the 2 meter band. Trouble is there is no controller or id-er, etc. http://www.rickster.org/pics/unknown.jpg I've been told it is a Compa-Station but I haven't been able to correlate this backplane any of the pictures on repeater-builder. Any clues would be appreciated. I'm planing on installing a CommSpec CTCSS TS64DS decoder and the NHRC-4 controller. 73, Rick AE7RS Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Motorola TEK-5 Test Set Manuals
Do you happen to know the difference between the E and F models ? Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Eric Lemmon [EMAIL PROTECTED] wrote: For those of you looking for a manual for one of the TEK-5 series of test sets, I have good news and bad news. The good news is that I can identify what manuals are needed: TEK-5B6881101A77 TEK-5C6881116A36 TEK-5E6881121A62 TEK-5F6881122E56 The bad news is that the first three (B, C, and E) are no longer available from Motorola Parts. More good news: The TEK-5F manual IS available, priced at just $ 1.57! Hard to believe... 73, Eric Lemmon WB6FLY Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: 6mtr duplexer
Forgot to mention: check with any large plumbing contracors or at large building construction sites where they might be using large dia. copper pipe for supply or waste piping. If you find any sites where they are using what your looking for they may let you have some scrap pieces just for hauling it off. Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Paul Holm [EMAIL PROTECTED] wrote: For all the looking I've done, I've only ever found one place on the web that had 4 or larger copper pipe available. And it was something like 30.00/foot. Has anyone found better sources for this type of pipe for building cavities? 73 Paul - Original Message - If you look around the ham radio web sites, there are many articles on making 6 m duplexersw out of copper or aluminum pipe. Less expensive than having to biuy a factory-made one. 73, Dick Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: 6mtr duplexer
Final post: Depending on size (dia.) and length you might consider getting sheet copper of the appropriate thickness and having a sheetmetal fabrication shop cut it and roll it to your dimensions. They could also form a lap seam or lock seam where the 2 edges meet and cut your end plates too. You might also want to consider aluminum, problably cheaper, if you have access to a TIG or heliarc welder. Try a local or area trade school and talk to the welding instructor. They might build what you want just for the student practice. Buenos Noches Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Paul Holm [EMAIL PROTECTED] wrote: For all the looking I've done, I've only ever found one place on the web that had 4 or larger copper pipe available. And it was something like 30.00/foot. Has anyone found better sources for this type of pipe for building cavities? 73 Paul - Original Message - If you look around the ham radio web sites, there are many articles on making 6 m duplexersw out of copper or aluminum pipe. Less expensive than having to biuy a factory-made one. 73, Dick Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Z matcher info.pdf
Can you recall where you saw the article and/or did you keep notes of the component values for the VHF and UHF caps, coils, etc. Would like to duplicate you efforts if possible. Thanks Doug N3DAB at arrl dot net for direct contact --- In Repeater-Builder@yahoogroups.com, Jim Cicirello [EMAIL PROTECTED] wrote: A while back there was an excellent article on making these Z Matchers. I made two, one VHF, One UHF, they worked well. The only parts were two Piston Caps, One turn coil between the caps and it was put in an RF tight box with two RF connectors of your choice. On the home made ones there was no circuit for the voltmeter. Does anyone know how this voltage is obtained from the Z Matcher? I would like to incorporate this design so I can remove the Power Meter and make a final tune. 73 JIM KA2AJH _ From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of John J. Riddell Sent: Tuesday, January 24, 2006 11:48 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Z matcher info.pdf Here is the How to sheet on the Z matcher. John VE3AMZ Z matcher info.pdf _ YAHOO! GROUPS LINKS * Visit your group Repeater-Builder http://groups.yahoo.com/group/Repeater-Builder on the web. * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] subject=Unsubscribe * Your use of Yahoo! Groups is subject to the Yahoo! http://docs.yahoo.com/info/terms/ Terms of Service. _ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Anyone Need DB224-E Data?
Bruce, I never recieved anything from Doug Zastrow by email or snailmail. I sent a 2nd request with no response. Maybe you will have better luck. If you do please forward a copy to me. 73 Doug N3DAB --- In Repeater-Builder@yahoogroups.com, bforestal [EMAIL PROTECTED] wrote: Doug, Please send me the dimensions, I particularly need the harness data, Thanks, Bruce WB6ARE --- In Repeater-Builder@yahoogroups.com, Doug Zastrow [EMAIL PROTECTED] wrote: Will do... Doug - Original Message - From: n3dab To: Repeater-Builder@yahoogroups.com Sent: Sunday, August 28, 2005 12:16 PM Subject: [Repeater-Builder] Re: Anyone Need DB224-E Data? Yes please, particularly the the complete descriptive dimmensions of the harness. Reply on or of the site Thanks Doug N3DAB n3dab at arrl dot net (direct) --- In Repeater-Builder@yahoogroups.com, Doug Zastrow [EMAIL PROTECTED] wrote: I have a brand-new DB224-E (138-150 MHz cut, Omni Pattern) in my garage. Is there anyone who would care for EXACT element spacing, element length or phasing harness dimensions on this August, 2005 vintage antenna before it goes up on our tower? FYI... We got the best product and freight pricing from Tally communications. We did get a quote from another frequently- mentioned vendor but they were considerably higher and were not able to quote firm freight to Nebraska. Obviously, your ship-to location and vendor relationship may make the opposite true for you. As always, YMMV! Doug Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: Anyone Need DB224-E Data?
Tom, I'll save your message and if I ever get anything I'll let you know. 73 Doug N3DAB --- In Repeater-Builder@yahoogroups.com, Tom Manning [EMAIL PROTECTED] wrote: Doug I also would be appreciative of all measurements looking toward modifying a commercial range DB224 to a two meter ham range. Thanks. Tom Manning, AF4UG - Original Message - From: bforestal [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, December 12, 2005 11:18 AM Subject: [Repeater-Builder] Re: Anyone Need DB224-E Data? Doug, Please send me the dimensions, I particularly need the harness data, Thanks, Bruce WB6ARE --- In Repeater-Builder@yahoogroups.com, Doug Zastrow [EMAIL PROTECTED] wrote: Will do... Doug - Original Message - From: n3dab To: Repeater-Builder@yahoogroups.com Sent: Sunday, August 28, 2005 12:16 PM Subject: [Repeater-Builder] Re: Anyone Need DB224-E Data? Yes please, particularly the the complete descriptive dimmensions of the harness. Reply on or of the site Thanks Doug N3DAB n3dab at arrl dot net (direct) --- In Repeater-Builder@yahoogroups.com, Doug Zastrow [EMAIL PROTECTED] wrote: I have a brand-new DB224-E (138-150 MHz cut, Omni Pattern) in my garage. Is there anyone who would care for EXACT element spacing, element length or phasing harness dimensions on this August, 2005 vintage antenna before it goes up on our tower? FYI... We got the best product and freight pricing from Tally communications. We did get a quote from another frequently- mentioned vendor but they were considerably higher and were not able to quote firm freight to Nebraska. Obviously, your ship-to location and vendor relationship may make the opposite true for you. As always, YMMV! Doug Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Micor VHF PA
Looking for 90/100 watt continuous duty Micor VHF PA for my 147.70 machine. Mod. # TLD5942A, TLD 1692D, or TLD1692C (all 130 to 150 range) Will consider the TLD5943A, TLD1693E, or TLD1693D. Must be in good working condition and very reasonable price. Needed to replace existing PA that has gone south and don't have time to repair. If you can help contact me thru the group or off ine at de_n3dab AT tds dot net. Thanks for any assistance in advance. Doug Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] micor desense problem
Would appreciate any feed back concerning a VHF non-unified chasis Micor repeater. The rcvr. is apparently being desensed by the an unstable PA. Bypassing the PA eliminates the desense. One suggestion recieved was to check /replace the Tantalum bypass caps in the PA The PA is a TLD8453A. A review of the manual and visual loook at the PA bd. does not indicate any Tantalum bypass caps being installed. Should the bypass caps in the power supply be suspect as well?? I can't ID any Tantalums there either. Can anyone give me the Cap nos. that I should suspect of being defective so I can cross reference them to the manual, or any other suggestions re: correcting the problem short of getting a new repeater. Any/all help will be appreciated. 73's Doug Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: micor desense problem
Thanks Andy, Everything that you mentioned has been checked out, swapped, changed etc. at the site and on the bench and the problem has been isolated to the PA itself. I don't have a second PA to substitute right now so I need to fix what I have. If it is not the bypass caps then it might be a hair line crack or cold solder joint in the PA or PS. Doug --- In Repeater-Builder@yahoogroups.com, Andrew G. [EMAIL PROTECTED] wrote: The first thing I would do is change the PA out with another to make sure that it is not a duplexer/filtering problem. Also, I presume you have decent cabling between the TX and duplexer/ RX and duplexer? Andy KC2GOW __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
[Repeater-Builder] Re: micor desense problem
Thanks Andy, Everything that you mentioned has been checked out, swapped, changed etc. at the site and on the bench and the problem has been isolated to the PA itself. I don't have a second PA to substitute right now so I need to fix what I have. If it is not the bypass caps then it might be a hair line crack or cold solder joint in the PA or PS. Doug --- In Repeater-Builder@yahoogroups.com, Andrew G. [EMAIL PROTECTED] wrote: The first thing I would do is change the PA out with another to make sure that it is not a duplexer/filtering problem. Also, I presume you have decent cabling between the TX and duplexer/ RX and duplexer? Andy KC2GOW __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
