I just received a Micor which is a B93RBC-3106-SP5. It is one with the 2 tube final PA for 250 W. The Micor is repackaged mobile type with what looks like a 45 W PA and ribbon cable and very large power supply that powers the unit. They are on 154/155 MHz.
We got this and another with 2 set of Q202GC Sinclair duplexer, 4 cavity. We are going to put one on for ARES/RACES with them providing the site, hopefully 400 ft above ground. I really want to do away with the tube PA and run the 45 W PA at 30 watts. The Florida Highway Patrol removed a number of these from service a year or so ago. Two were given to our county. They could have gotten more. Think gone now. I did see some on e-bay from someone near me. Think he got the rest. 73, ron, n9ee/r >From: Mike Morris WA6ILQ <[EMAIL PROTECTED]> >Date: 2008/03/28 Fri PM 02:05:10 CDT >To: Repeater-Builder@yahoogroups.com >Subject: Re: [Repeater-Builder] Compa Station Help > >At 11:19 AM 03/28/08, you wrote: >>I have a Compa Station with the model number C73RTB-1106C. >> >>I am looking for some help figuring out what this is >>split, etc and how to make it into a repeater. > >The 73RTB is a 90-100w intermittent duty (20 % duty >cycle) Micor base built for the 136-174MHz frequency >band. An RCB would be continuous duty. >The 1106 is a carrier squelch wireline controlled base. >If it was a 3106 it would be PL. Adding tone is a simple >process once you get the parts. >See the bottom half of this page: ><http://www.repeater-builder.com/micor/pix/micor-mobile-and-base-model-numbers.gif> > >And remember 20% is twenty seconds of transmit time >every 100 seconds. That's not to say that it won't >transmit for 20 minutes, but it will get hot doing so. > >I do not recommend making an intermittent duty radio >into a repeater unless: >a) it's a learning experience (i.e. don't make it a >prime repeater for an area). >b) you have spares for when the PA deck will blow up. >c) you run it at reduced power with some sort of >thermostatic controlled cooling. > >The Micor series was built for a specific range of that band, >such as 136-150, 150-162, 160-174. I may not have the >edge frequencies exact (all my manuals are in storage), >but that's close. If you have a high range radio, forget it. >A 150-162 can be stretched, a low range is designed for >2m. > >Look at the assemblies for a three letter / 4 digit number >and then at this table - ><http://www.repeater-builder.com/rbtip/micorvhfboardnumbers.html> > >>First things first is that there is no power leads hooked >>up except for the one to the control board box. I can see >>where there are places for heavy cables from the power >>supply to the transmitter. Is there seperate power for >>the receiver or does that come from the ribbon cable? > >Ribbon cable? >You must have a really old unit. Most of the ones I've >seen are the unified chassis system >Look for any TxD numbers and let us know what they are. >the x can be any letter, but most commonly will be R, T, or L. > >>How can I get this thing to key up to see what the TX >>frequency is? > >Plug a microphone into the unit. > >>If I find out the TX freq can I sweep the >>recv side with a freq generator to figure out where it >>opens up? > >If the channel element is there it will have a frequnecy >label on it. > >>Are these crystal controlled or can they be adjusted to >>get the right frequency pair? > >A crystal is mounted in side a prepackaged oscillator, called >a channel element. See ><http://www.repeater-builder.com/micor/micor-element-info.html> >If the elements are even there. > >>Thanks, >>Vern > >More info here: ><http://www.repeater-builder.com/rbtip/micor-index.html> > >Mike > > > Ron Wright, N9EE 727-376-6575 MICRO COMPUTER CONCEPTS Owner 146.64 repeater Tampa Bay, FL No tone, all are welcome.
