Re: [Repeater-Builder] Colorado Gateway back on-line repeaters up high
Gary Glaenzer wrote: and I-70 to approximately Limon, CO, almost to Western Kansas with all due respect, it's 90 miles from Limon to the KS border Okay, over 100 miles, and more than half-way from the repeater site to Western Kansas. Better? :-) Nate WY0X
Re: [Repeater-Builder] Re: Vertex vs. Kenwood
At 10/3/2008 19:04, you wrote: Can't say much for the Vertex Repeater front end because I've never had one around to look at. The one I saw (UHF) had no visible filtering on the RX board. It was installed at a comm. site with only a duplexer for filtering, completely fell apart (massive IMD). A single Motorola 1/4 wave pass can in front of the RX cleaned it up. Bob NO6B
[Repeater-Builder] Sinclair Duplexer Q2220E or Q202GR
I need your help to decide which duplexer is best to choose between Sinclair Q202GR or Sinclair Q2220E for a ham repeater in Brunei Climate. de V8AQM
[Repeater-Builder] Re: UHF LINK ANTENNA QUESTION HELP NEEDED!
How about a pl tone decoder (Get the wanted repeater to send or pass through a pl tone)? Lower the link antenna? Increase the number of elements on the link antenna? Turn th link antenna more north so that the non wanted repeater is not receivable(Find the weak spot in the pattern)? Thanks, Sean Murphy 985-951-8557 Office 985-264-2765 Cell Certified Software Solutions of Louisiana L.L.C.
[Repeater-Builder] Re: Portable Temporary Repeater
First and foremost, I owe everyone on the forum an apology, for my rant and ill place remarks posted yesterday! 48 hours and 5 hours sleep, and then another 20 hr run with 4 hours sleep toady, is not conducive to making good decisions and conversations! To WD8CHL especially, I mistook some of your comments about the ham gear, and should not have posted that publicly, especially with lack of sleep! As far as our repeater council, that is a whole nother can of worms we will not go into! The band spectrum in Texas is not as congested as in some other areas, and we have few closed systems, unlike California and a couple of other states! For my personal purpose, purchasing a bunch of purpose built or specialized equipment was what I was trying to a avoid, the main use occurs once a year, with possible use a couple of other times besides that! Although it would be nice to have available, if a Search and Rescue operation needed to occur in that or similar area! In other areas and events, we usually have the use of one or more of the many wide area coverage repeaters located throughout the area and state! I had seen a set-up similar to what I was interesting in building, and everything fit in a small pelican case! The big problem was I cannot remember who had it! It used a crystal based HT for receive and the FT-2800 for transmit! Did not have the opportunity to see how else it was assembled! I can only assume it used some sort of crystal ladder in the HT for isolation, not sure. The rig worked well for about a 10 mile square area, although not as rugged a terrain as our event is in! Was hoping someone on this group had knowledge of the set-up! Guess I will work at saving up some spare change and find some sort of commercial radio (possibly one suggested) that can be converted to a portable UHF rig! Seems that is much easier to accomplish! Again, thanks to everyone for their advice and wisdom! And please except my apology for being a jerk! Now, I am going to bed, since I have to be on the road again tonight at 2200! 73 Louis - K1STX
[Repeater-Builder] Re: Portable Temporary Repeater
First and foremost, I owe everyone on the forum an apology, for my rant and ill place remarks posted yesterday! 48 hours and 5 hours sleep, and then another 20 hr run with 4 hours sleep toady, is not conducive to making good decisions and conversations! To WD8CHL especially, I mistook some of your comments about the ham gear, and should not have posted that publicly, especially with lack of sleep! As far as our repeater council, that is a whole nother can of worms we will not go into! The band spectrum in Texas is not as congested as in some other areas, and we have few closed systems, unlike California and a couple of other states! For my personal purpose, purchasing a bunch of purpose built or specialized equipment was what I was trying to a avoid, the main use occurs once a year, with possible use a couple of other times besides that! Although it would be nice to have available, if a Search and Rescue operation needed to occur in that or similar area! In other areas and events, we usually have the use of one or more of the many wide area coverage repeaters located throughout the area and state! I had seen a set-up similar to what I was interesting in building, and everything fit in a small pelican case! The big problem was I cannot remember who had it! It used a crystal based HT for receive and the FT-2800 for transmit! Did not have the opportunity to see how else it was assembled! I can only assume it used some sort of crystal ladder in the HT for isolation, not sure. The rig worked well for about a 10 mile square area, although not as rugged a terrain as our event is in! Was hoping someone on this group had knowledge of the set-up! Guess I will work at saving up some spare change and find some sort of commercial radio (possibly one suggested) that can be converted to a portable UHF rig! Seems that is much easier to accomplish! Again, thanks to everyone for their advice and wisdom! And please except my apology for being a jerk! Now, I am going to bed, since I have to be on the road again tonight at 2200! 73 Louis - K1STX --- In Repeater-Builder@yahoogroups.com, wd8chl [EMAIL PROTECTED] wrote: Robert Pease wrote: Ok since we made it back to the original question. Here are my thoughts on it. 1st. Ham rigs are a bad choice for any type of repeater, I would look hard for used commercial rigs, especially if you want to transmit from the recieve site. That's what I said, but he took offense to that. Well, sorry, it may not be what you want to hear, but it's the truth. No, I obviously DON'T have anything against ham radio, or I wouldn't be here. But I DO have something against using made-for-ham equipment in a repeater environment, because they just don't work. At best, not for long. Broad receivers prone to intermod/desense, dirty transmitters that cause desense and intermod, poor PA's that just don't hold up to long transmissions, etc. We are trying to warn you that you WILL have problems using that equipment for a repeater. You can find some really cheap commercial gear and some people on this list and other lists I am on have been known to donate to the right cause. 2nd I understand the budget problem and only working with what you have. So here is an idea I have used before since you mentioned that there are dual band HT's out there. I have set up 2 dual band HT's on buildings several hundred feet apart. 1 cross band from 2 meters to a specific 440 freq and the other cross band from that 440 freq to your 2m freq. Depending on power and spacing you may even get away with 600 khz offset. I realize you probably don't have buildings at your site but hills will work also. Even the same hill if you can get them spaced far enough apart. Ours ran on a gell cell charged by solar. Yeah, a split-site arrangement like that is a REALLY good idea for this app. Although again, I wouldn't use made-for-ham handhelds for this. Find some commercial-grade gear. Part 90 commercial MUST narrowband in a few years, and older radios that won't narrowband will start showing up DIRT cheap, since it can't be used there after 2012. Good suggestions? Syntor X is a great radio, lots of info on it, synthesized, clean, rugged, etc. GE Phoenix-S or SX, smaller (dash-mount), everything you need is on the rear connector, no mods! 2 VHF Phoenix-S with power turned down to about 10W, and a pair of UHF -S's like wise turned down to ~5W, spaced about 3/4 to 1 mile apart, or less depending on terrain between the two, a simple control package with ID and time-out-timer, and you're good to go!
RE: [Repeater-Builder] Repeater Antenna
That is THE GOLD STANDARD of commercial repeater vhf antennas and it should be I guess for the money they get for them. I am using one at this time and it is excellent; the one I am using is in the 142-151 range (2) which is perect for 2 meter ham use. Glenn -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Randy Sent: Thursday, October 02, 2008 9:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Repeater Antenna I have a Repeater antenna. Radio Frequency Systems, #220-3AN Freq: 150.5-158. New is about $3000.00 ... I'll take 1/2 plus shipping for anyone that wants it. . . http://www.rfsworld.com/dataxpress/DataSheets/?q=220-3AN http://www.rfsworld.com/dataxpress/DataSheets/?q=220-3AN No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.7.5/1703 - Release Date: 10/2/2008 7:46 AM
Re: [Repeater-Builder] Vertex vs. Kenwood
HI Bob, Very long no talk to. I would go with the Kenwood repeater over the Vertex. But my first choice would be Motorola. That what us guys in Wicsonsin use 73's Bob. From Rick WB9RJB --- On Thu, 10/2/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: From: [EMAIL PROTECTED] [EMAIL PROTECTED] Subject: [Repeater-Builder] Vertex vs. Kenwood To: Repeater-Builder@yahoogroups.com Date: Thursday, October 2, 2008, 10:24 PM Hi All, My club has some 3-year-old VHF and UHF Vertex repeaters at a high-RF site. A possible deal would move them to a much quieter site, and if that happens we'll need replacements. Members of this list have consistently shown a preference for Kenwoods, and it appears both brands are priced about the same. However, I'm concerned that much of what has been posted falls into the true believer category, and this decision must be based on technical data. How about it, RF gurus? If you have facts, please spill 'em. Thanks! 73, Bob, WA9FBO Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators.
[Repeater-Builder] Re: Portable Temporary Repeater
Observations, suggestions, and your crazy are appreciated! Unfortunately I have to add myself to the list of naysayers but to answer as you requested: Basically the question is: at a 2 mhz seperation (odd split) on VHF can one get away without using duplexers (cans), utilizing separate rx/tx antenna's, spaced about 20 ft apart! Without desense or other issues NO. Inadequate physical separation, inadequate frequency separation, especially using the equipment described. Being such a remote area, and the nearest 2 meter repeater is well over 50 miles away, and nowhere near these frequencies - 145.500 rx/147.500 out using a tone of 179.9, I do not see any interference issues there! As you suggest, the likelihood of interference is small but NOT nonexistent. If it were me, I think I'd have a receiver (on carrier squelch) monitoring your repeater output just for the purpose of CYA. Overkill? Maybe, but as the movie actor asked, Do you feel lucky today? At least you could answer truthfully that the frequency was monitored. --- In Repeater-Builder@yahoogroups.com, Louis [EMAIL PROTECTED] wrote: I apologize if this has been addressed previously, or even close! Do not have a substantial amount of time to complete this research! Situation: An event in a remote area, one hill top is well enough that coverage at around 10 watts VHF for the repeater could cover most of our Aid Stations, 2 with HT's, the other 3 with Portables at 25 watts or so, could get into the repeater! In the past, we have used crossband UHF in, VHF out, and it worked ok! Except for issues with a couple of HT's not being able to cut the input out during transmit! My goal, is to design a lite weight, low power consumption (i.e. fewest batteries possible, as the hill top is only assessable by hiking or horseback! What I have on hand: Single band 2m HT for receive Single band Yaesu 2M FT2800R for transmit @ 12.5 watts! Pair of homebrewed 2 m aluminum j-poles Need to acquire: simple controller - NHRC-2 looks workable! batteries - based on estimated power consumption of final configuration! Basically the question is: at a 2 mhz seperation (odd split) on VHF can one get away without using duplexers (cans), utilizing separate rx/tx antenna's, spaced about 20 ft apart! Without desense or other issues! Being such a remote area, and the nearest 2 meter repeater is well over 50 miles away, and nowhere near these frequencies - 145.500 rx/147.500 out using a tone of 179.9, I do not see any interference issues there! Observations, suggestions, and your crazy are appreciated! Thank You, K1STX
RE: [Repeater-Builder] LMR-400 Cable
Here is the latest. I terminated the cable at the antenna with a dummy load and no desense. I hooked back up to the antenna and if listen to the receiver with the squelch open I hear a buzz in the background of the receiver white noise audio in addition to desense which doesn't show up when terminated. Checking the swr I have less than 1/2 watt reflected with about 80 forward. The offset for this receiver is 1.7 Mhz by the way. If I take a 1/4 wave mag mount antenna that I have sitting on top of the duplexer cabinet and plug it directly into the receiver I hear no buzz or desense. This tells me something is going on with the antenna and coming back the line. Is it time to put in some hardline? Tom / KA1NVZ -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, October 02, 2008 8:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] LMR-400 Cable At 10/2/2008 05:41, you wrote: Hello Tom, I think that the clue here is that you had desense with both the RG-213 and the LMR-400. My guess would be that there is some mismatch between the antenna and the duplexer. The duplexer may be tuned for a 50 resistive ohm load, but the antenna system is presenting some other impedance/reactance. Neither RG-213 nor LMR400 are suitable for duplex use, so it's quite likely that both were the source of the desense. Bob NO6B
[Repeater-Builder] Q-202GR Sinclair VHF Repeater HAM Duplexer/Combiner
Hi all, We are looking to put up a HAM repeater for our club for the first time. Knowledge on setting up repeater is very minimal. We are looking for an Elmer view about the above duplexer. Detail are as follows: FREQUENCY RANGE: 144 - 174 MHz, FREQUENCY SEPARATION: 500 kHz (min.), INSERTION LOSS: 2.9 dB (min.), ISOLATION: 80dB (min.), MAXIMUM VSWR: 1.5:1, MAXIMUM INPUT POWER: 350 Watts, TERMINATION(s): `N' Female and `N' Male . How best can it work with any repeater switch? what are the do's and the don't of this duplexer and building a repeater in general. Vy 73 de v8aqm
RE: [Repeater-Builder] Vertex vs. Kenwood
Hi Bob You might also want to look at the new Icom commercial series FR-3000 VHF and FR-4000 UHF repeaters. I have heard good things about them so far and they are running over 70db down on adjacent channel and intermod rejection. They are designed for commercial business and public safety apps and do not list Ham freq ranges, however they do tune to the ham pairs no problem. They run 50 w continuous fan cooled but can have lower power selected if you are running a sep. amp. Price is competitive at around 1400-1500. 73 Glenn N1GBY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, October 03, 2008 10:14 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Vertex vs. Kenwood Hi Joe, I'm still trying to comprehend why you would need replacements just because a site is more quiet. If they work at the crowded site, they should work fine at the quiet one. That's just it -- they don't work all that well at this mountaintop site with literally hundreds of RF sources. Since we have an opportunity to sell them, it seems like a good time for an upgrade. But if K is no better in this situation than V, you're right, we're going down the wrong path. This is a club that went from Micor vintage equipment that was showing its age to Vertex and now has an opportunity to change once again. The bias is toward new, low-maintenance gear rather than refurbished old commercial gear. 73, Bob -Original Message- From: MCH [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Thu, 2 Oct 2008 9:50 pm Subject: Re: [Repeater-Builder] Vertex vs. Kenwood I'm still trying to comprehend why you would need replacements just because a site is more quiet. If they work at the crowded site, they should work fine at the quiet one. Joe M. [EMAIL PROTECTED] wrote: Hi All, My club has some 3-year-old VHF and UHF Vertex repeaters at a high-RF site. A possible deal would move them to a much quieter site, and if that happens we'll need replacements. Members of this list have consistently shown a preference for Kenwoods, and it appears both brands are priced about the same. However, I'm concerned that much of what has been posted falls into the true believer category, and this decision must be based on technical data. How about it, RF gurus? If you have facts, please spill 'em. Thanks! 73, Bob, WA9FBO -- Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators http://pr.atwola.com/promoclk/10075x1209382257x1200540686/aol?redir=htt p://www.walletpop.com/?NCID=emlcntuswall0001. -- No virus found in this incoming message. Checked by AVG. Version: 7.5.526 / Virus Database: 270.7.5/1703 - Release Date: 10/2/2008 7:46 AM Find phone numbers fast with the New AOL Yellow Pages http://yellowpages.aol.com/?NCID=emlweusyelp0001 ! No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.7.5/1705 - Release Date: 10/3/2008 8:18 AM
[Repeater-Builder] Duplexers for 440 repeater
Good Afternoon, I am looking for a duplexer for a 440 repeater, 15 watts out of the radio. Thanks for your help. 73, Scott W9SBA
[Repeater-Builder] Re: Portable Temporary Repeater
Just a couple comments on the original question of isolation. Vertical separation is much more effective than horizontal - and with a wide split you might be able to build a simple coaxial notch filter using a T and a length of coax on the receive side to help keep the transmitter out of the receiver. I remember seeing this kind of filter described in older VHF manuals. If interested in finding out more about this, let me know and I'll dig out my old copy and see if it really might be an option to help out the isolation. I've seen a couple set ups described where the transmit antenna and receive antenna were mounted base to base and the ground planes supposedly helped increase isolation - that might not work with J poles since there is no ground plane. Good luck - long term you might look for an old mobile telephone with an internal duplexer or even consider building a helical resonator for the receiver to help improve front end performance of the receiver. They aren't that hard to build and can work pretty good. 73 - Dan --- In Repeater-Builder@yahoogroups.com, Louis [EMAIL PROTECTED] wrote: I apologize if this has been addressed previously, or even close! Do not have a substantial amount of time to complete this research! Situation: An event in a remote area, one hill top is well enough that coverage at around 10 watts VHF for the repeater could cover most of our Aid Stations, 2 with HT's, the other 3 with Portables at 25 watts or so, could get into the repeater! In the past, we have used crossband UHF in, VHF out, and it worked ok! Except for issues with a couple of HT's not being able to cut the input out during transmit! My goal, is to design a lite weight, low power consumption (i.e. fewest batteries possible, as the hill top is only assessable by hiking or horseback! What I have on hand: Single band 2m HT for receive Single band Yaesu 2M FT2800R for transmit @ 12.5 watts! Pair of homebrewed 2 m aluminum j-poles Need to acquire: simple controller - NHRC-2 looks workable! batteries - based on estimated power consumption of final configuration! Basically the question is: at a 2 mhz seperation (odd split) on VHF can one get away without using duplexers (cans), utilizing separate rx/tx antenna's, spaced about 20 ft apart! Without desense or other issues! Being such a remote area, and the nearest 2 meter repeater is well over 50 miles away, and nowhere near these frequencies - 145.500 rx/147.500 out using a tone of 179.9, I do not see any interference issues there! Observations, suggestions, and your crazy are appreciated! Thank You, K1STX
[Repeater-Builder] 6 Meter Repeater Desense issues.
First of all let me thank everyone that answered my questions about LMR-400 cable and the desense issues I have been having. So far tests right up to the antenna with a dummy load have shown no desense so to me that leaves the antenna. After some discussion with a Diamond representative who didn't have a lot of technical background this is what I have learned. The model DP-GH62 appears to cover the 6 meter band in two segments. 50 to 51.5 and 52 to 54 Mhz. There is a 9.5 pf cap across a coil at the base and with the cap in place it is supposed to operate from 50.to 51.5 and removing the cap moves it up to 52 to 54. My repeater frequencies are 52.810 out and 51.110 in. So I need to either move my input frequency up or so If I play with the value of the cap say 12 to 25 pf and make the antenna resonate somewhere from 51 to 53 Mhz? Thank You Tom Elmore KA1NVZ Anchorage, Alaska
RE: [Repeater-Builder] Re: Portable Temporary Repeater
For what it's worth, the FCC authorized repeater sub-bands for 2m are 144.5-145.5 and 146.0-148.0, so putting a repeater input (or output) square on 145.5 will likely have part of the repeater operating outside the sub-band if that matters to you. Mike/W5JR ---[Original Message]--- From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Oct 3, 2008 3:07:08 AM Subject: [Repeater-Builder] Re: Portable Temporary Repeater Observations, suggestions, and your crazy are appreciated! Unfortunately I have to add myself to the list of naysayers but to answer as you requested: Basically the question is: at a 2 mhz seperation (odd split) on VHF can one get away without using duplexers (cans), utilizing separate rx/tx antenna's, spaced about 20 ft apart! Without desense or other issues NO. Inadequate physical separation, inadequate frequency separation, especially using the equipment described. Being such a remote area, and the nearest 2 meter repeater is well over 50 miles away, and nowhere near these frequencies - 145.500 rx/147.500 out using a tone of 179.9, I do not see any interference issues there! As you suggest, the likelihood of interference is small but NOT nonexistent. If it were me, I think I'd have a receiver (on carrier squelch) monitoring your repeater output just for the purpose of CYA. Overkill? Maybe, but as the movie actor asked, Do you feel lucky today? At least you could answer truthfully that the frequency was monitored. --- In Repeater-Builder@yahoogroups.com, Louis [EMAIL PROTECTED] wrote: I apologize if this has been addressed previously, or even close! Do not have a substantial amount of time to complete this research! Situation: An event in a remote area, one hill top is well enough that coverage at around 10 watts VHF for the repeater could cover most of our Aid Stations, 2 with HT's, the other 3 with Portables at 25 watts or so, could get into the repeater! In the past, we have used crossband UHF in, VHF out, and it worked ok! Except for issues with a couple of HT's not being able to cut the input out during transmit! My goal, is to design a lite weight, low power consumption (i.e. fewest batteries possible, as the hill top is only assessable by hiking or horseback! What I have on hand: Single band 2m HT for receive Single band Yaesu 2M FT2800R for transmit @ 12.5 watts! Pair of homebrewed 2 m aluminum j-poles Need to acquire: simple controller - NHRC-2 looks workable! batteries - based on estimated power consumption of final configuration! Basically the question is: at a 2 mhz seperation (odd split) on VHF can one get away without using duplexers (cans), utilizing separate rx/tx antenna's, spaced about 20 ft apart! Without desense or other issues! Being such a remote area, and the nearest 2 meter repeater is well over 50 miles away, and nowhere near these frequencies - 145.500 rx/147.500 out using a tone of 179.9, I do not see any interference issues there! Observations, suggestions, and your crazy are appreciated! Thank You, K1STX
[Repeater-Builder] 6ld450s rfs
Hi guys would anyone have the spec sheet for the above diplexer Thank You, Ian Wells, Kerinvale Comaudio, 361 Camboon Road.Biloela.4715 Phone 0749922574 or 0409159932 www.kerinvalecomaudio.com.au
[Repeater-Builder] What repeater to get to replace your old one.......
Here in Southern California from Sierra Peak, for the 146.610 Repeater (K6FAM Repeater) we use almost exclusively The Kenwood TKR-750 VHF and the TKR-850 UHF transceivers for our mountaintops! I love the fact that they will work independantly of an external controller (IF I ever needed to) but I have been using for years, and will continue to use for years to come, the S-Com 7K which is the older version of the Newly released 7330 3 port controller. I was a beta tester for this controller and it was fun to use as it programs very similar to the older 7K 2.5 port controller. There is even a forum to discuss issues and programming regarding both controllers. Nothing but pure fun (except for the actual programming-BORING). But aside from that, it has been a blast mating the two of these pieces of equipment together - The Kenwood TKR-750/TKR-850 and the S-Com 7330 3 port controller. Now, for the record, I still use my Motorola Mitrek conversions. They mate up well with the S-Com controllers very well also. So, if you are willing to roll up your sleeves and work through the issues, (and do it a few hours at a time) then you will be impressed at the performance from the right equipment mated together. and the price of the S-Com 7330 was hundreds of dollars less than the similar model offered with the same features. The flexibility of the controller makes it so you can almost do anything with it- as long as you are willing to bring the pieces together. Oh, and ALL my information was gotten from the pages of Repeaterbuilder.com exclusively! I built the Motorola Mitrek dual band repeater myself (with their help). -- Mark Christian KB6SRT -- Founder / Trustee. - FCARA Fam-Comm Amateur Radio Assoc. 146.610 (-) pl 103.5-Echolink Node-44576 445.760 (-) pl 103.5-IRLP Node-3952 www.k6fam.com / [EMAIL PROTECTED] _
[Repeater-Builder] Radius R1225
Does anyone have the Service Manual for this radiothat they could download to me? Ray
[Repeater-Builder] Re: Ritron Repeaters
Skipp - I echo your comments., I have had good luck with these !!! Jerry VE3 EXT
[Repeater-Builder] Re: Radius R1225
http://www.wiscomm.com/manuals.htm . In Repeater-Builder@yahoogroups.com, skydiver297 [EMAIL PROTECTED] wrote: Does anyone have the Service Manual for this radiothat they could download to me? Ray
Re: [Repeater-Builder] Colorado Gateway back on-line repeaters up high
close enough, although I'd be interested in seeing how it does heading east just after you cross that ridge-line about 20 miles west of Limon is there any problem in the shadow of that high spot ? - Original Message - From: Nate Duehr To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 04, 2008 1:46 AM Subject: Re: [Repeater-Builder] Colorado Gateway back on-line repeaters up high Gary Glaenzer wrote: and I-70 to approximately Limon, CO, almost to Western Kansas with all due respect, it's 90 miles from Limon to the KS border Okay, over 100 miles, and more than half-way from the repeater site to Western Kansas. Better? :-) Nate WY0X -- Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1705 - Release Date: 10/3/2008 8:18 AM
RE: [Repeater-Builder] Re: Radius R1225
The WisComm site offers hard-copy manuals for purchase, not download. Since the R1225 service manual is still available from Motorola Parts, and is copyrighted, it is not legal to download it. The good news is that the manual is inexpensive, about $14. Call 800-422-4210 and order Publication 6880905Z53. 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Randy Sent: Saturday, October 04, 2008 6:48 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Radius R1225 http://www.wiscomm.com/manuals.htm http://www.wiscomm.com/manuals.htm . In Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com , skydiver297 [EMAIL PROTECTED] wrote: Does anyone have the Service Manual for this radiothat they could download to me? Ray
Re: [Repeater-Builder] Vertex vs. Kenwood
Hi Guys, Thank you to all who responded to my inquiry, through the list and privately, for your insight. The tech committee now has more info on which to base its decision. 73, Bob, WA9FBO **New MapQuest Local shows what's happening at your destination. Dining, Movies, Events, News more. Try it out! (http://local.mapquest.com/?ncid=emlcntnew0001)
[Repeater-Builder] Re: Duplexers for 440 repeater
I have a set of two can motorola pass reject that will work well up to 40-50 watts if you think that will do. What type of repeater are you using? I can tune them up also. 73, Dale k0jxi reply to [EMAIL PROTECTED] --- In Repeater-Builder@yahoogroups.com, Scott [EMAIL PROTECTED] wrote: Good Afternoon, I am looking for a duplexer for a 440 repeater, 15 watts out of the radio. Thanks for your help. 73, Scott W9SBA
Re: [Repeater-Builder] LMR-400 Cable
Tom--- I don't think that your feed line is the problemsounds like corrosion in the antenna---is this a possibility? What can happen is that your forward power into the antenna sets up significant current in the antenna structure ( and near tower structure too) which is rectified when and if it passes through corrosion. The rectification (some call it micro-arcs) results in noise that is wideband enough to cover the repeater's receive frequency and this goes back down the feed line and through the duplexer to cause desense. The interesting thing is that you often, or maybe I should say usually, can't hear any change in receiver output noise between transmitter on and off---just desensing of an external signal. Have I had this experience?-Yes. In my case, a 2 meter Hustler went bad---received fine with the transmitter off and showed good VSWR with it on but extreme desense and the wideband desensing noise was visible using an iso-T and spectrum analyzer at the receiver input. What was the cure? Took the antenna down and overhauled it and put it back. No more desense for several years now. Scott, N6NXI - Original Message - From: Tom Elmore To: Repeater-Builder@yahoogroups.com Sent: Friday, October 03, 2008 12:10 AM Subject: RE: [Repeater-Builder] LMR-400 Cable Here is the latest. I terminated the cable at the antenna with a dummy load and no desense. I hooked back up to the antenna and if listen to the receiver with the squelch open I hear a buzz in the background of the receiver white noise audio in addition to desense which doesn't show up when terminated. Checking the swr I have less than 1/2 watt reflected with about 80 forward. The offset for this receiver is 1.7 Mhz by the way. If I take a 1/4 wave mag mount antenna that I have sitting on top of the duplexer cabinet and plug it directly into the receiver I hear no buzz or desense. This tells me something is going on with the antenna and coming back the line. Is it time to put in some hardline? Tom / KA1NVZ -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Thursday, October 02, 2008 8:47 PM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] LMR-400 Cable At 10/2/2008 05:41, you wrote: Hello Tom, I think that the clue here is that you had desense with both the RG-213 and the LMR-400. My guess would be that there is some mismatch between the antenna and the duplexer. The duplexer may be tuned for a 50 resistive ohm load, but the antenna system is presenting some other impedance/reactance. Neither RG-213 nor LMR400 are suitable for duplex use, so it's quite likely that both were the source of the desense. Bob NO6B
[Repeater-Builder] Re: Radius R1225
---There is a Yahoo Group called radio-programming you can present your question and someone may their may already have what you need, rather than buying one. . In Repeater-Builder@yahoogroups.com, skydiver297 [EMAIL PROTECTED] wrote: Does anyone have the Service Manual for this radiothat they could download to me? Ray
Re: [Repeater-Builder] Re: Ritron Repeaters
I have been looking for schematics for the RR-450...I have a receive section that has been converted to ham use and I would like info on it..Wrothe to the mfgr and they wanted so sell me a manual that was more than I wanted to...Still looking... 73 Mike - N7ZEF - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, October 03, 2008 8:09 PM Subject: [Repeater-Builder] Re: Ritron Repeaters Brian I have converted two ritron responder., model rr-450 They work good., but internal duplexer is right on the edge., an external one would work better., (out of range)., as they are indeed 450-470 mhz Jerry VE3 EXT Yahoo! Groups Links
Re: [Repeater-Builder] Re: Ritron Repeaters
Mike, I *think* I have at least part of a manual in the shop. I can look for it and let you know my findings tomorrow. (Some things have not made the move yet. These manuals are among the not moved pile) Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Mike Reed [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 04, 2008 9:23 PM Subject: Re: [Repeater-Builder] Re: Ritron Repeaters I have been looking for schematics for the RR-450...I have a receive section that has been converted to ham use and I would like info on it..Wrothe to the mfgr and they wanted so sell me a manual that was more than I wanted to...Still looking... 73 Mike - N7ZEF - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, October 03, 2008 8:09 PM Subject: [Repeater-Builder] Re: Ritron Repeaters Brian I have converted two ritron responder., model rr-450 They work good., but internal duplexer is right on the edge., an external one would work better., (out of range)., as they are indeed 450-470 mhz Jerry VE3 EXT Yahoo! Groups Links Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1708 - Release Date: 10/4/2008 11:35 AM
Re: [Repeater-Builder] Colorado Gateway back on-line repeaters up high
At 10/3/2008 23:46, you wrote: Gary Glaenzer wrote: and I-70 to approximately Limon, CO, almost to Western Kansas with all due respect, it's 90 miles from Limon to the KS border Okay, over 100 miles, and more than half-way from the repeater site to Western Kansas. Better? :-) Nate WY0X Back in '05 I unsuccessfully tried accessing the 2M 440 repeaters on Pike's Peak from Mt. Sunflower (highest point in Kansas, almost right on the CO-KS border). The repeaters there use low gain antennas (I assume the owners are worried about lightning - anything more than a 3 dBd antenna would easily make it the highest point on the building maybe the entire mountain), so I wouldn't be surprised if there are some other systems in the surrounding ranges that actually have better coverage to the east. Bob NO6B
Re: [Repeater-Builder] Re: Ritron Repeaters
Cool-Thanks 73 Mike - N7ZEF - Original Message - From: Scott Zimmerman [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 04, 2008 9:01 PM Subject: Re: [Repeater-Builder] Re: Ritron Repeaters Mike, I *think* I have at least part of a manual in the shop. I can look for it and let you know my findings tomorrow. (Some things have not made the move yet. These manuals are among the not moved pile) Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Rd Boswell, PA 15531 - Original Message - From: Mike Reed [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Saturday, October 04, 2008 9:23 PM Subject: Re: [Repeater-Builder] Re: Ritron Repeaters I have been looking for schematics for the RR-450...I have a receive section that has been converted to ham use and I would like info on it..Wrothe to the mfgr and they wanted so sell me a manual that was more than I wanted to...Still looking... 73 Mike - N7ZEF - Original Message - From: [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Friday, October 03, 2008 8:09 PM Subject: [Repeater-Builder] Re: Ritron Repeaters Brian I have converted two ritron responder., model rr-450 They work good., but internal duplexer is right on the edge., an external one would work better., (out of range)., as they are indeed 450-470 mhz Jerry VE3 EXT Yahoo! Groups Links Yahoo! Groups Links No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.5/1708 - Release Date: 10/4/2008 11:35 AM Yahoo! Groups Links
[Repeater-Builder] Controller
Just in case someone needs one, I have a new ( less than 30 days old ) Arcom 210 Controller, with audio delay board option, rack case, a Selectone PL module. $395 shipped. Contact off the reflector. - Mike
