I have a problem with the FPA power supply and circuit board is different than all the prints I have. It is a. TPN 1185B with circuit board TRN 7241B32. The battery charge and Eq switch do not change voltage on power supply output. If I disconnect power switch Q657 from C 601 the voltage goes up to ...

I need help to program DPL 732 receive to encode PL 141.3 with tail bip. And to set up 2 other users on PL 100 and PL 151.4. The manual is not clear on DPL/PL programming.

We have a ham UHF repeater that we need to maintain mixed mode and multi DPL/PL decode. The station control module supplies the decoded PL and audio into a Zetron 38 and the Zetron supplies DPL/PL tone into control module. The repeater audio and PTT and Cor come from MRTI connector. The repeater is ...

One of my APX-7000 radios has problem with no receive on external speaker mic or external headset. A short burst of audio is present when first connecting headset and then no receive audio. The external PTT and Mic audio is working correctly. I checked setting between working and non working radio a...

I picked up a astro saber 3 (R) split with DSP=N08.03.03/07.71.00 Flashcode is 100008-000000-0. It seems to work well on most frequencies except 448.750 mhz. I get a fail 001 message and beep. If I change vco crossover to 443 mhz it works ok on the channels I need to program. The default crossover f...

The motorola t-44 radios in the 1960 has amp with 2c39 tube that was a receiver pre-amp.

Looking for a way to connect COR on astro tac receiver.

Does a stock astro tac receiver work with v.24? Does it need daughter board on line driver.

I have problem Xts-5000 after storage for 8 months it goes into a loop booting after power up. After 5 minutes the display is up and if radio receives or transmits it goes into loop. I reseated all flex cables and cleaned battery contacts internal and external. I tried external 12 volt adapter batte...

looking for schematic and parts list for range 2 225 watt FPA Quantro amplifier. I need to repair amp.

I have a APX-7000 that has a broken male SMA pin on antenna connector.It is broken loose and stays in antenna connector when removed.What is best way to repair this?

host and dsp upgraded from ver 5 to ver 8 flashcode 9A4218-011692-0 proc ver OMAP1710

Can a Apx-7000 with problem (updating secure hardware) loop be corrected?

I found problem looking at wireline configuration.The securenet/astro to wireline was disabled.changed to enable and Diu3000 works great on tx/rx now.

Connected V.24 board to wireline and made cable to connect diu 3000.Diu 3000 transmits imbe ok but does not decode imbe receive.The rd line on v.24 shows clock pulses and does not change when receiving imbe.I tried v.24 card on a quantar with same results.The quantro is ver. 20 and quantar is ver 16...

Can a diu 3000 be connected to a quantar without a astro modem locally.And if so how do you connect it to repeater to support imbe and analog audio?

I checked with 2 Bird Wattmeters with 250 watt slug and at 100 watts with 2 100 watt slugs and error was low by a few watts between all slugs.

UHF 225 Watt Quantro has power output problem at rated power.Cannot get more that 200 Watts Output in power output calibration without getting Error 4124 HC11 Driver_overdrive_alarm.FPA and IPA Currents on metering is correct and balanced.What Stage is this error message indicating a problem with?

The tactical version of this radio has low backlight option for use with night vision gear.

CPS 9.0 does not work with this radio and I do not know what will allow programming.Earlier Versions will no work either.

You may have problem with high level receive audio modulating VCO causing feedback.I have had other radios do this and high volume caused a feedback and it would also be happen when hitting case while receiving a carrier.