RE: [Repeater-Builder] Bend an ICOM a little further
You can do it but depending on the quality of the Parts you use it will drift. When You have it on the test bench and add caps Etc.. and it reads right on Freq , unless it is going to be within a few deg it will drift and When transmitting things will heat up and it will drift . I have done it on Scanners. etc But You are talking about a repeater with Someone's call on it and that may be at a remote site around other Commercial Emergency Equipment. I just had My Receive xtal for My 220 Micor repeater done at http://www.icmfg.com/Temp comp for about $50.00 The old one would drift gradually in a 3 Mo period and I would only notice this on Weak signals, I would adjust it back and it would drift. So I had the one made and I have never had a problem. You said the Club does not have much money, I have a 220 and 440 Repeater on the Air as a Hobby just to keep the old mind active , I do not have a Club or paying Members , Just a Old Disabled Vet on a fixed income, I don't know You a or your Club , But You tell me where and I will Donate $ 20.00 toward a New Xtal I mean all this in a good way you are a fellow ham Good Luck Don KA9QJG On Feb 16, 2010, at 9:57 PM, KE4ZDG wrote: Hey folks, I'm working on a GE Mastr II high band repeater. Someone gave me some crystals that were made up for 146.010 RX. I installed one in an EC ICOM and the best I can adjust for is 146.0064, which sounds really scratchy when I inject a 3k deviation signal on 146.010. When I tune the monitor down to 146.0064, the RX audio cleans right up. I've backed out the screw until there's no more threads left in the ICOM. Is there a capacitor I can change or add to give me a little more tuning range to the ICOM? I just need the crystal to go up a hair more (400 Hz on the crystal freq). I know I'm promoting cheapness by not buying another crystal, but the club doesn't have much money to spend. Thanks, Jared
[Repeater-Builder] Maxon Help!!
I have a Maxon TMA4474 DTMF mic and need the pinout. These are supposed to be for the TM4800 series 800m radios. Any help is already greatly appreciated! Steve KD8BIW
Re: [Repeater-Builder] Bend an ICOM a little further
Was the crystal that you got for 146.06RX made for a MASRTII radio, or something else? The cut can be different for different radio manufacturers. I have purchased only crystals for MASTRII and recrystalled my ICOMs with good luck. If I need to net them on frequency I use capacitors from the spare ICOMs that I have from the various mobile radios I have for spare parts. Lately, I have been sending the ICOMs back to ICM for recrystalling and temperature compensation. Yes it costs more, but I think it's worth it. Personally, I don't think that the club should have a repeater if they have no funding. You are supplying free labor, they should be able to spring for a few bucks. 73, Joe, K1ike On Feb 16, 2010, at 9:57 PM, KE4ZDG wrote: Hey folks, I'm working on a GE Mastr II high band repeater. Someone gave me some crystals that were made up for 146.010 RX. I installed one in an EC ICOM and the best I can adjust for is 146.0064, which sounds really scratchy when I inject a 3k deviation signal on 146.010. When I tune the monitor down to 146.0064, the RX audio cleans right up. I've backed out the screw until there's no more threads left in the ICOM. Is there a capacitor I can change or add to give me a little more tuning range to the ICOM? I just need the crystal to go up a hair more (400 Hz on the crystal freq). I know I'm promoting cheapness by not buying another crystal, but the club doesn't have much money to spend. Thanks, Jared
[Repeater-Builder] Re: Need DB4048 Duplexer Info
larynl2 lar...@... wrote: Thanx Paul, who responded directly, Randy, and Skipp. That puts me onto some things to check. So far the harness looks to be correct, with proper length jumpers made of RG9/B. I looked at all of the loops and they are also in good shape and correct size. Next I'll check each cavity individually on their respective notch frequencies. And maybe I should check all elements of the harness with a megger to find lightning damage/carbon tracks. Yeah, 1 watt and desense so bad it's not worth measuring -- something rather serious... Laryn K8TVZ You might try using only two of the cavities in a simple dual cavity duplexer test situation. I suspect what might quickly be labeled desense is actually part of or sourced to another problem. Regardless of the label one small iceberg should not sink this new fancy Titanic Ship. cheers, s.
[Repeater-Builder] Re: Repco Voter (and modules)
burkleoj joeburk...@... wrote: Does anyone have any information or a manual on a Repco TC-10V Voter? Thanks, Joe - WA7JAW I'd love to see a couple of pictures of that voter if you can make them available. Repco in theory is still in business but you'll waste a lot of time on the phone figuring out they are not doing much in radio that we'd be interested in. So I doubt you'll get much help from what is now or remains of Repco. Regarding the neat little Repco Exciter/Transmitter and Receiver Modules... I have copies of the Service Manuals Scanned into PDF and have given them to the Repeater Builder for posting on the RB Website. Let us know if you find the Manual Joe, I would be neat to have a look at how they did that. cheers, skipp
[Repeater-Builder] Re: PSE 508 Controllers
I fully agree, the PSE 508 is an excellent controller. I have 3 of them and never a problem. Sid. WA4VBC \ --- In Repeater-Builder@yahoogroups.com, Matt Harker kc5...@... wrote: The PSE 508 is an excellent controller. I highly recommend its use with your GE repeater system. It is specifically designed for the GE Mastr II repeater station. I wish we'd had these controllers some years ago when I was working in the commercial two-way business. 73's de KC5DBH Matt From: John J. Riddell ve3...@... To: Repeater-Builder@yahoogroups.com Sent: Sun, February 14, 2010 3:06:28 PM Subject: [Repeater-Builder] PSE 508 Controllers Has anyone here used the Pion and Simon PSE508 series of controllers in a GE Mastr II ? Is the 508-3 with 4 channels of CTCSS worth considering ? 73 John VE3AMZ
RE: [Repeater-Builder] Micor Community Repeater Supplement
I am in need of a micor UHF community repeater station supplement number is 68-81025E55, or 68P81025E55. Email me at my callsign at yahoo Jim I have it in paper, but not electronic. Is there a particular section you need that I could scan? --- Jeff WN3A
RE: [Repeater-Builder] DB224A new harness
I just recieved 2 new DB224A harnesses from Andrew. They were made in Mexico (no surprise there, they have been making them there for some time). Curious if you had any problems ordering them, and if I may ask, what did they run you? I need it to work on 147.225/147.825. I got a 1.68:1 on 147.225mhz and better than 1.5:1 on 147.825mhz. Any one seem to think I might improve this a bit if I spread the loops out a bit? What would be the ideal spacing for 147.225mhz? I know a DB224E would be better, but this one has to do. So you started with a DB224E, but installed a DB224A harness on it? Or was this a DB224A to begin with? Altering the vertical spacing (within reason) will likely have little effect on the VSWR. One curious thing is there is a new feature on this harness. There is a 25 VB-8 open ended stub down the main feed line about 12.5 from where the two halves of the harness come together... Yes, it is open. What is this all about? I saw the same thing on a recent DB404 UHF dipole array from Andrew. I didn't see the open stub until I was already at the site with the tower crew so I didn't get a chance to dissect/analyze it further. Could I extend it to get the match to improve at lower frequencies? Without knowing its specific function, it's hard to say what effect extend the length would have. --- Jeff WN3A
[Repeater-Builder] Re: Micor Community Repeater Supplement
Jeff I am converting a micor uhf community repeater to the ham band. What I really need is the entire supplement. I am just starting to set up the repeater so I am flying blind without it. I am trying to find someone who has one they do not need, or can scan, or copy so I can have a full copy as the project progresses. Maybe someone will post that they have one for sale. Thanks Jim --- In Repeater-Builder@yahoogroups.com, Jeff DePolo j...@... wrote: I am in need of a micor UHF community repeater station supplement number is 68-81025E55, or 68P81025E55. Email me at my callsign at yahoo Jim I have it in paper, but not electronic. Is there a particular section you need that I could scan? --- Jeff WN3A
RE: [Repeater-Builder] DB224A new harness
I got the harnesses at no charge from Andrew. I contacted customer support and told them I had 3 fairly new DB224's (2 a models and a b model) that had water intrusion/contamination in the harness where they were supposedly seal by the factory. I offered pictures and they accepted. Upon seeing the photos they asked that I give them serial numbers and requested I send the defective harnesses to them. I did and they offered and I accepted replacement harnesses. The two db224's that I have (personally) are the A models. The B model belongs to my shop. I often end up with abandoned and or defective db224's and other antennas as I work for a two way land mobile dealer/shop. Unfortunately, I have yet to get any DB224e's or any DB304's, just tons of DB224a's and an occasional DB224b. Hats off to Andrew for shipping me free replacement harnesses. I am still gonna ScotchKote those moldings regaurdelss. If you look at the attached photoes from my initial post, you will see that the open 25 VB-8 (50 ohm) stub is 12.5 from the T where the top half and bottom halves of the harness come together, down the main feed to the hardline (or whatever you feed the antenna with). Last night I connected the Sitemaster up again and I noticed the the SWR will come down some when I firmly secure the harness to the mast with the metal tape. How far down remains to be seen. I will keep you posted. 73 and thanks! de N5NPO Norm winmail.dat
Re: [Repeater-Builder] Bend an ICOM a little further
Jared; You need to warp 4khz not 400hz... If they were made up for 146.01 I would assume that they can do that. So now we need to look at why they are not... 10v reg power supply needs to be 10v +/- .1-.2v . The temp comp line to the EC needs to be driven to something by a 5ppm or eq channel element installed in the board, not necessarily even to be in band.. just to hold the comp line where it belongs... assuming it is not a comp line dc issue or a 10v reg dc issue, it is possible the xtal is from an exec II and while the xtal is the same freq, it is not the same cut... it may or may not tune in a Mastr II. On the other hand Mastr II xtals will in general function in both Exec II and Mastr II as a more precise cut. There is also a section of striplines at the top of the element that are actually there to fine trim the freq of the oscillator in the element. It is normally covered by the temp com circuit in an 2C and 5C. sometimes you can either repair or cut parts of that stripline area to move the center of the xtal. I would suspect that if the xtal is the correct one and it was assembled correctly.. it is more likely a DC issue to the comp line or 10v reg... The comp line needs to sit about 4.5 v, as I recall, for proper operation at room temp...Any 5C plugged in a spare element slot will drag it to the correct voltage... you can also measure it with a volt meter on any unused element pin spot that is not in use on that board... While in a mobile the comp line is common to the TX and RX.. in a station it is not.. you did not indicate what Mastr II you were working with.. Doug KD8B KE4ZDG wrote: Hey folks, I'm working on a GE Mastr II high band repeater. Someone gave me some crystals that were made up for 146.010 RX. I installed one in an EC ICOM and the best I can adjust for is 146.0064, which sounds really scratchy when I inject a 3k deviation signal on 146.010. When I tune the monitor down to 146.0064, the RX audio cleans right up. I've backed out the screw until there's no more threads left in the ICOM. Is there a capacitor I can change or add to give me a little more tuning range to the ICOM? I just need the crystal to go up a hair more (400 Hz on the crystal freq). I know I'm promoting cheapness by not buying another crystal, but the club doesn't have much money to spend. Thanks, Jared Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * Your email settings: Individual Email | Traditional * To change settings online go to: http://groups.yahoo.com/group/Repeater-Builder/join (Yahoo! ID required) * To change settings via email: repeater-builder-dig...@yahoogroups.com repeater-builder-fullfeatu...@yahoogroups.com * To unsubscribe from this group, send an email to: repeater-builder-unsubscr...@yahoogroups.com * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] Bend an ICOM a little further
Forgive me if I'm going where no one wants to go, but isn't there a point in the decline of a club at which the nuclear option becomes the best choice? Guys, the repeater's been a fun ride for 40 years, but we're down to three members, and no longer have enough in the treasury to keep the old girl running. The coordinator says there are people on the waiting list willing to spend the money to take care of a repeater. As I see it, we have two choices. I await your guidance. Sincerely... 73, Paul, AE4KR - Original Message - From: KE4ZDG To: Repeater-Builder@yahoogroups.com Sent: Tuesday, February 16, 2010 9:57 PM Subject: [Repeater-Builder] Bend an ICOM a little further Hey folks, I'm working on a GE Mastr II high band repeater. Someone gave me some crystals that were made up for 146.010 RX. I installed one in an EC ICOM and the best I can adjust for is 146.0064, which sounds really scratchy when I inject a 3k deviation signal on 146.010. When I tune the monitor down to 146.0064, the RX audio cleans right up. I've backed out the screw until there's no more threads left in the ICOM. Is there a capacitor I can change or add to give me a little more tuning range to the ICOM? I just need the crystal to go up a hair more (400 Hz on the crystal freq). I know I'm promoting cheapness by not buying another crystal, but the club doesn't have much money to spend. Thanks, Jared
Re: [Repeater-Builder] Bend an ICOM a little further
Seriously, some people need to read the original message before replying. The original complaint was running out of tunning range on the piston trimmer in the channel element while trying to net the crystal on frequency. Not rubbering the crystal to another channel or Nuclear warfare on an inactive club. Also I should mention that the receiver should be set by looking at the LO frequency on either a service monitor or a frequency counter of known precision, Tuning it until it sounds best is not the way to go. The LO frequency for the MASTR-II VHF will be either + or - 11.2 MHz from the receive frequency depending on the whether high side injection was specified when ordering the crystal. On Wed, Feb 17, 2010 at 3:52 PM, Paul Plack pl...@xmission.com wrote: Forgive me if I'm going where no one wants to go, but isn't there a point in the decline of a club at which the nuclear option becomes the best choice? Guys, the repeater's been a fun ride for 40 years, but we're down to three members, and no longer have enough in the treasury to keep the old girl running. The coordinator says there are people on the waiting list willing to spend the money to take care of a repeater. As I see it, we have two choices. I await your guidance. Sincerely... 73, Paul, AE4KR
Re: [Repeater-Builder] Bend an ICOM a little further
At 2/17/2010 16:33, you wrote: Also I should mention that the receiver should be set by looking at the LO frequency on either a service monitor or a frequency counter of known precision, Tuning it until it sounds best is not the way to go. The LO frequency for the MASTR-II VHF will be either + or - 11.2 MHz from the receive frequency depending on the whether high side injection was specified when ordering the crystal. My procedure for setting the RX freq.: 1. Tune LO chain (on MVPs Exec IIs the 1st mult. stage will pull the oscillator freq. a little, so have to do this before netting the xtal). 2. Set LO freq. per above. 3. Tune front-end. 4. Move sig. gen. freq. +/- to see if RX is centered. 5. If RX is not centered, tune IF for best SINAD. 6. Repeat step 4. If RX is still not centered, move LO freq. to center IF. Bob NO6B
Re: [Repeater-Builder] Bend an ICOM a little further
Doug wrote: Jared; You need to warp 4khz not 400hz... If they were made up for 146.01 I would assume that they can do that. Jared wrote: I just need the crystal to go up a hair more (400 Hz on the crystal freq). In Jared's defense, he did say on the crystal frequency He needs to go 3600 cycles higher on the channel, which relates to 400 cycles at the crystal because the LO multiplier in a VHF MASTR II receiver is 9 400 cycles (400 more than the present netting excursion, that is...) at the crystal frequency is going to be difficult without breaking the oscillator - IMHO. Kevin
[Repeater-Builder] Motorola Software Users group
Anyone know what has happened to this group? It USED to be THE place regarding Motorola RSS and such... but lately it has been overrun with SPAM. I sent a message to the list owner, with no reply. Thoughts? Suggestions for a replacement? Mark - N9WYS
Re: [Repeater-Builder] Motorola Software Users group
They're probably in jail . . . . On Wed, Feb 17, 2010 at 8:02 PM, Mark n9...@ameritech.net wrote: Anyone know what has happened to this group? It USED to be THE place regarding Motorola RSS and such... but lately it has been overrun with SPAM. I sent a message to the list owner, with no reply. Thoughts? Suggestions for a replacement? Mark - N9WYS -- James Adkins, KB0NHX Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN) www.nixahams.net Southern Missouri Assistant Frequency Coordinator - Missouri Repeater Council www.missourirepeater.org The Nixa Amateur Radio Club - There is no charge for awesomeness! (Well, only $1.00 per month)
Re: [Repeater-Builder] Motorola Software Users group
I did the same thing but nothing. Sounds like the list owner has gone AWOL Randy On 2010-02-17, at 9:02 PM, Mark wrote: Anyone know what has happened to this group? It USED to be THE place regarding Motorola RSS and such... but lately it has been overrun with SPAM. I sent a message to the list owner, with no reply. Thoughts? Suggestions for a replacement? Mark - N9WYS
RE: [Repeater-Builder] DB224A new harness
I tried to work backwards on a Smith Chart from the dipole to the 1/2 WL O.C. stub to determine a reason for the stub but it appears the unknown coax types are causing erroneous and confusing answers. Can you confirm the coax types shown on your diagram? a. --- On Wed, 2/17/10, NORM KNAPP nkn...@twowayradio.net wrote: From: NORM KNAPP nkn...@twowayradio.net Subject: RE: [Repeater-Builder] DB224A new harness To: Repeater-Builder@yahoogroups.com Date: Wednesday, February 17, 2010, 3:57 PM I got the harnesses at no charge from Andrew. I contacted customer support and told them I had 3 fairly new DB224's (2 a models and a b model) that had water intrusion/contamina tion in the harness where they were supposedly seal by the factory. I offered pictures and they accepted. Upon seeing the photos they asked that I give them serial numbers and requested I send the defective harnesses to them. I did and they offered and I accepted replacement harnesses. The two db224's that I have (personally) are the A models. The B model belongs to my shop. I often end up with abandoned and or defective db224's and other antennas as I work for a two way land mobile dealer/shop. Unfortunately, I have yet to get any DB224e's or any DB304's, just tons of DB224a's and an occasional DB224b. Hats off to Andrew for shipping me free replacement harnesses. I am still gonna ScotchKote those moldings regaurdelss. If you look at the attached photoes from my initial post, you will see that the open 25 VB-8 (50 ohm) stub is 12.5 from the T where the top half and bottom halves of the harness come together, down the main feed to the hardline (or whatever you feed the antenna with). Last night I connected the Sitemaster up again and I noticed the the SWR will come down some when I firmly secure the harness to the mast with the metal tape. How far down remains to be seen. I will keep you posted. 73 and thanks! de N5NPO Norm
[Repeater-Builder] Re: Repco Voter (and modules)
Skipp, I have two of these units and one looks like it has never been in service. It is still in the bubble wrap. I have not tried Repco yet due to the reasons you mentioned. I was hoping someone on here had the info. They must have made more than two of them, so there must be a manual sitting in somebody's file cabinet somewhere. I will take a few pictures and send them your way off list if that is OK with you. They look a lot a like the Doug Hall chassis, but then a lot of the card slot chassis all look alike from the outside. Thanks for your interest. Joe - WA7JAW --- In Repeater-Builder@yahoogroups.com, skipp025 skipp...@... wrote: burkleoj joeburkleo@ wrote: Does anyone have any information or a manual on a Repco TC-10V Voter? Thanks, Joe - WA7JAW I'd love to see a couple of pictures of that voter if you can make them available. Repco in theory is still in business but you'll waste a lot of time on the phone figuring out they are not doing much in radio that we'd be interested in. So I doubt you'll get much help from what is now or remains of Repco. Regarding the neat little Repco Exciter/Transmitter and Receiver Modules... I have copies of the Service Manuals Scanned into PDF and have given them to the Repeater Builder for posting on the RB Website. Let us know if you find the Manual Joe, I would be neat to have a look at how they did that. cheers, skipp
Re: [Repeater-Builder] Motorola Software Users group
That was some very interesting SPAM coming through for a while... Seems like it's been nixed; more than likely Yahoo's anti-SPAM finally caught up. On Wed, Feb 17, 2010 at 8:23 PM, Randy Elliott jan...@rogers.com wrote: I did the same thing but nothing. Sounds like the list owner has gone AWOL Randy On 2010-02-17, at 9:02 PM, Mark wrote: Anyone know what has happened to this group? It USED to be THE place regarding Motorola RSS and such... but lately it has been overrun with SPAM. I sent a message to the list owner, with no reply. Thoughts? Suggestions for a replacement? Mark - N9WYS
RE: [Repeater-Builder] DB224A new harness
The unknown coax type is/was VB-83 (35 ohm). The VB-8 is of course 50 ohm and the VB-11 is 75 ohm. I hope that is the info you needed. It would be great if you could figure out what the open stub is for and can we use that for adjustments. If you need more info, let me know. 73 Norm From: Repeater-Builder@yahoogroups.com on behalf of allan crites Sent: Wed 2/17/2010 9:29 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] DB224A new harness I tried to work backwards on a Smith Chart from the dipole to the 1/2 WL O.C. stub to determine a reason for the stub but it appears the unknown coax types are causing erroneous and confusing answers. Can you confirm the coax types shown on your diagram? a. --- On Wed, 2/17/10, NORM KNAPP nkn...@twowayradio.net wrote: From: NORM KNAPP nkn...@twowayradio.net Subject: RE: [Repeater-Builder] DB224A new harness To: Repeater-Builder@yahoogroups.com Date: Wednesday, February 17, 2010, 3:57 PM I got the harnesses at no charge from Andrew. I contacted customer support and told them I had 3 fairly new DB224's (2 a models and a b model) that had water intrusion/contamina tion in the harness where they were supposedly seal by the factory. I offered pictures and they accepted. Upon seeing the photos they asked that I give them serial numbers and requested I send the defective harnesses to them. I did and they offered and I accepted replacement harnesses. The two db224's that I have (personally) are the A models. The B model belongs to my shop. I often end up with abandoned and or defective db224's and other antennas as I work for a two way land mobile dealer/shop. Unfortunately, I have yet to get any DB224e's or any DB304's, just tons of DB224a's and an occasional DB224b. Hats off to Andrew for shipping me free replacement harnesses. I am still gonna ScotchKote those moldings regaurdelss. If you look at the attached photoes from my initial post, you will see that the open 25 VB-8 (50 ohm) stub is 12.5 from the T where the top half and bottom halves of the harness come together, down the main feed to the hardline (or whatever you feed the antenna with). Last night I connected the Sitemaster up again and I noticed the the SWR will come down some when I firmly secure the harness to the mast with the metal tape. How far down remains to be seen. I will keep you posted. 73 and thanks! de N5NPO Norm winmail.dat
RE: [Repeater-Builder] Motorola Software Users group
What exactly is it that you are looking for? I missed most of the previous feed. I work for Motorola maybe i can help Raymond P. Kalbfeld 16850 Collins Avenue Suite 112-463 Sunny Isles Beach, Florida 33160 Cell 786-267-7555 Office 305-831-1488 rpkalbf...@hotmail.com To: Repeater-Builder@yahoogroups.com From: aj.grant...@gmail.com Date: Wed, 17 Feb 2010 21:13:46 -0700 Subject: Re: [Repeater-Builder] Motorola Software Users group That was some very interesting SPAM coming through for a while... Seems like it's been nixed; more than likely Yahoo's anti-SPAM finally caught up. On Wed, Feb 17, 2010 at 8:23 PM, Randy Elliott jan...@rogers.com wrote: I did the same thing but nothing. Sounds like the list owner has gone AWOL Randy On 2010-02-17, at 9:02 PM, Mark wrote: Anyone know what has happened to this group? It USED to be THE place regarding Motorola RSS and such... but lately it has been overrun with SPAM. I sent a message to the list owner, with no reply. Thoughts? Suggestions for a replacement? Mark - N9WYS _ Hotmail: Powerful Free email with security by Microsoft. http://clk.atdmt.com/GBL/go/201469230/direct/01/
