True. I had forgotten that one. It was a PAIN to work on as it was positive ground internally.
The same hardware was in the firetower repeater. Mike At 05:11 PM 04/15/09, you wrote: >Minor technicality - Wasn't the mobile radio that was made >from HT-200 boards the first solid state Motorola mobile >transmitter? > >------ Original Message ------ >Received: Wed, 15 Apr 2009 01:13:47 AM PDT >From: Mike Morris WA6ILQ <[email protected]> >To: [email protected] >Subject: RE: [Repeater-Builder] Repeater information please > > > As to MSNs .... > > > > The 43MSN high band mobile was the first all solid > > state Motorola mobile transmitter. It was the first > > radio labeled Motran and was a direct swapout of the > > Motrac - same cable, same head, same everything. > > The center chassis section that held the T-supply > > in the Motrac was all empty space. > > > > The 44MST came along later and was based on the > > same basic design (and came in 4 freq and 12 freq > > models). > > In the 4-freq models transmit F1-F4 was in the exciter, > > receive F1 and F2 were in the receiver chassis, the > > receive F3 and F4 channel elements were in a corner > > of the open center area. > > The 12 freq was developed for the mobile telephone > > industry and was labeled MARK XII. It was the first > > binary switched radio in the Moto lineup. > > It was all 12v - the open center section of the chassis > > held the additional 18 channel elements. > > > > The high power 74MST was a 4 freq UHF MOTRAN > > (and used a 28volt PA deck run by a 12-to-28 transistorized > > switching power supply in the center section) along with > > the receive F3 and F4 channel elements. > > > > To get back to the topic, his station has an M series > > receiver, and an S series exciter that puts out about > > 20-30w on UHF. It's loosely based on the 74MST design > > but less the finals, I forget if the MST driver (the final of > > his exciter) is a 12v stage or a 28v stage. > > > > Mike WA6ILQ > > > > At 10:24 PM 04/14/09, you wrote: > > >If I am decoding the model numbers properly... > > > > > >The first station is most likely a 250W UHF MOTRAN base station, but has a > > >tube in the final PA. > > >The second station is a high-power continuous-duty 800 MHz (or possibly >900 > > >MHz) MICOR. (Check the channel elements for the exact freq.) > > > > > >Someone will correct me if I am wrong. ;-) > > > > > >http://www.repeater-builder.com/motorola/motorola-suffixes.html > > > > > >Can't help you with manual numbers off-hand, but I'm sure someone else >will > > >chime in. > > > > > >Mark - N9WYS > > > > > >-----Original Message----- > > >From: [email protected] On Behalf Of bene6148 > > >Sent: Tuesday, April 14, 2009 10:55 PM > > >To: [email protected] > > >Subject: [Repeater-Builder] Repeater information please > > > > > >I have a Motorola Motrac model #B94MSB-1106A, and a Micor model > > >#C75RCB6105AT. I would appreciate any information on these two models as > > >well as manual numbers. > > > > > > > > > > > > > > >------------------------------------ > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > >------------------------------------ > > > >Yahoo! Groups Links > > >
