[Repeater-Builder] Re: Micor Repeater - ID?

2008-02-04 Thread sgreact47
Acually it IS a C64RCB-3105AY which is a eight user comunity repeater. Eric Lemmon [EMAIL PROTECTED] wrote: Mike, The C64RCB-3105AT (I'm pretty sure the Y is actually a T) station is described as: C = Compa Station 64 = 75 watt output in the UHF band RCB = Continuous Duty PA 3 =

[Repeater-Builder] Re: Low-band MaraTrac Squelch Pots

2008-02-04 Thread sgreact47
Bob, Look here for the modified audio board. http://www.batlabs.com/images/marsqsch.jpg The squelch control circuit is there, uses the Micor, MSF, high speed squelch. Bob M. [EMAIL PROTECTED] wrote: I'm working on a 42-50 MHz MaraTrac with the A7 advanced head that has a squelch pot on it.

Re: [Repeater-Builder] Unidentified Tone Board

2008-02-04 Thread Steve S. Bosshard (NU5D)
You can probably get the truth chart from a Maxon LMR or Selectone LMR service manual - The MXCOM chip was not uncommon for them - will take a peek in the morning. Steve NU5D Terry wrote: Can anyone ID this tone encoder board? IC is mx-com mx315 marked with FT303 6 dip switches DCS /

Re: [Repeater-Builder] Re: Low-band MaraTrac Squelch Pots

2008-02-04 Thread Bob M.
Thanks to the people who posted the link. I had seen that page earlier but didn't follow the signal off the board. The pot in the control head seems to have its arm and one end connected to ground. The other end goes through some resistors before leaving the control head. I can see the effect of

Re: [Repeater-Builder] Re: Micor Repeater - ID?

2008-02-04 Thread Mike Benonis
What exactly is a community repeater? I've seen references to it, but I haven't seen a definition yet. Best regards, Mike Benonis Electrical Engineering '09 Department of Drama Sound Engineer The University of Virginia [EMAIL PROTECTED] mailto:mjb8h%40virginia.edu KI4RIX On Feb 4, 2008, at

Re: [Repeater-Builder] Re: Low-band MaraTrac Squelch Pots

2008-02-04 Thread Milt
Bob, The info you need is contained in FMR-1735A-1 dated June 1996 The Audio squelch board in the radio is replaced with HLN5342ESP01 From Pin 9 on the front connector (the former busy light line) on the interconnect board, the signal feeds through JU1510 to pin 12 of J21 the audio board

Re: [Repeater-Builder] Re: Micor Repeater - ID?

2008-02-04 Thread Milt
A community repeater is shared by multiple users, each using a different PL/DPL code. If all users have decoding set up and the mic hung up, no one hears anyone else until the user goes off hook. The hardest part of operating a community repeater system is to educate all users that if

[Repeater-Builder] Mobile Radio Building Blocks

2008-02-04 Thread Cort Buffington
Anyone have a recommendation about a mobile radio to use as a building block for repeater systems? I'd be looking at UHF, wanting to cover 430-450, and want something that can serve as a good tight receiver, exciter, or low power link transmitter. The idea is that if there is something

Re: [Repeater-Builder] Re: Low-band MaraTrac Squelch Pots

2008-02-04 Thread Bob M.
Problem temporarily solved. While tracing the signals around U1103, I found no Detected Audio coming into pin 8 of J21, however when I pushed on the pin just a bit, the radio would then squelch up and the pot worked like it should, along with the one on the audio board which was also dead. I

Re: [Repeater-Builder] Mobile Radio Building Blocks

2008-02-04 Thread George Henry
Too bad you're ruling out a crystal rig... I have several Johnson PPL6060 rigs, which are very easy to duplex and make great low-power repeaters/exciters or full-duplex link radios. Definitely would meet the inexpensive part... ($25 each, shipped in the lower 48) George, KA3HSW / WQGJ413

Re: [Repeater-Builder] Mobile Radio Building Blocks

2008-02-04 Thread Com/Rad Inc
Cort Can you contact me off list [EMAIL PROTECTED] 73 Ed K9QPJ - Original Message - From: Cort Buffington To: Repeater-Builder@yahoogroups.com Sent: Monday, February 04, 2008 9:39 AM Subject: [Repeater-Builder] Mobile Radio Building Blocks Anyone have a recommendation

Re: [Repeater-Builder] Mobile Radio Building Blocks

2008-02-04 Thread Kris Kirby
On Mon, 4 Feb 2008, Cort Buffington wrote: Anyone have a recommendation about a mobile radio to use as a building block for repeater systems? I'd be looking at UHF, wanting to cover 430-450, and want something that can serve as a good tight receiver, exciter, or low power link transmitter.

Re: [Repeater-Builder] Unidentified Tone Board

2008-02-04 Thread Johnny
Terry, Look in the files section for a file named tonechrt.txt It should give you what you need. Johnny Steve S. Bosshard (NU5D) wrote: You can probably get the truth chart from a Maxon LMR or Selectone LMR service manual - The MXCOM chip was not uncommon for them - will take a peek in the

Re: [Repeater-Builder] Community Repeater War Stories

2008-02-04 Thread Steve S. Bosshard (NU5D)
Amen on the LTR trunk. Worst problem was an electrical contractor and a materials hauler. The haul guy had instructions to report to base when he reached the gravel pits. This is unit 10, I am at the gravel pit, where do you want me to go from here? Poor gravel hauler's loudspeaker went

Re: [Repeater-Builder] Re: Low-band MaraTrac Squelch Pots

2008-02-04 Thread Bob M.
Thanks for the info. At least my tracing down to pin 9 was correct. I don't believe anyone has mixed boards, but now I can trace it through. The BUSY LED on the front panel seems to be on whenever the radio has an open squelch. I don't remember if it also opened with a coded signal. If you have

RE: [Repeater-Builder] Re: Micor Repeater - ID?

2008-02-04 Thread Jim Cicirello
I have two Kenwood Community Repeaters, one on UHF and the other on VHF. The thing that makes them a community repeater is they have a multi user CTCSS or Digital Tone Panel and each user/customer is assigned a tone. The newer mobile units and portables are set up for BUSY CHANNEL LOCK OUT which

[Repeater-Builder] Community Repeater War Stories

2008-02-04 Thread skipp025
Ahh... that magic Busy Channel Lock-out feature that never seemed to be available, enabled or programmed on. In days of old (when knights were bold) you'd have one or two guys on the frequency with high powered base stations and no desire to share the frequency. After a few butt-head events

Re: [Repeater-Builder] Mobile Radio Building Blocks

2008-02-04 Thread Cort Buffington
George, the PPL6060 is a good radio (plug for anyone else looking). I've got quite a few UHF Mitreks sitting around that are my fall-back position. I was really hoping to move up a couple generations in technology. But what seems to keep happening is that the old stuff just can't be beat

[Repeater-Builder] Backup Power for your Repeater Site

2008-02-04 Thread skipp025
A possible backup power generator/alternator engine for your remote repeater site? Maytag 2 Cyl Gas Engine Motor from Washing Machine Ebay Item number: 260208430885 Just kidding... or am I? cheers, s.

RE: [Repeater-Builder] Re: Micor Repeater - ID?

2008-02-04 Thread Eric Lemmon
Mike, A community repeater is simply a shared repeater, and the individual subscribers have unique PL or DCS tone pairs assigned to them. For example, Ace Taxi might have PL tone 82.5, Jones Ready-Mix might have 97.4, and Smith Funeral Home might have 131.8. When the radio traffic is very