Completely understood :) The first unit I was able to verify is acting correctly on the 173/171 pair in to a dummy load with 8 watts out, broke squelch at .11 uV. Second unit was missing the TX crystal; swapped between cabinets and had identical results.
On Wed, Feb 24, 2010 at 9:24 AM, Milt <men...@pa.net> wrote: > > > Just the standard words of wisdom; be sure you verify that it works, and > how it works before starting any conversion. That way you only have to deal > with one problem at a time not compounded problems. > > Milt > N3LTQ > > > ----- Original Message ----- > *From:* AJ <aj.grant...@gmail.com> > *To:* Repeater-Builder@yahoogroups.com > *Sent:* Wednesday, February 24, 2010 10:39 AM > *Subject:* [Repeater-Builder] Anyone work on a Radio Specialty Mfg > Mountain Top Repeater before? > > I have not one but two of these gems sitting in my office right now... 2 > channel crystal controlled repeaters in a nice battleship grey cabinet. I > believe BLM used these here in the western states for quite a long while > before switching to Daniels. > > A factory test sheet in one of the 3 service manuals I have specifies .15 > uV sensitivity at 12 dB quieting; .21 UV sensitivity at 20 dB quieting with > a whopping 8 ma draw in standby, swinging to 1.8 amps in repeat. Overall > looking at the design, it appears quite logically laid out. Looks like power > output is around 8 watts and factory spec was 145 to 174 MHz in 1983. > > We're looking at rerocking it for 147 MHz as a portable repeater in a > Pelican case with a Q2220 duplexer... ICM has already quoted $21 a rock with > a 2 week lead time. > > > Any one have a chance to work on one of these before? > > > > >
