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Re: Motorola GM300/Maxtrac rear rx pin not passing audio
So .... Do you get that good audio from the speaker from weak signals? Can .5 uV signals with audio result in audio from the speaker? If so, your XTAL is good. Andy [email protected]> wrote:
By wj9jrg · #214921 ·
Re: Motorola GM300/Maxtrac rear rx pin not passing audio
I may need to be a little more clear¡­.:I still get RX audio from the speaker just none from the pin on the rear. All I get from the pin on the rear is dead audio with pl(otherwise the pl encoder
By Tyler- WZ5TX · #214920 ·
Re: Motorola GM300/Maxtrac rear rx pin not passing audio
I should have been more specific. I don¡¯t get the COS signal from the radio. I get the COS from the masters SC-50 micor squelch pl board¡­ I will get some crystals ordered! Thank you
By Tyler- WZ5TX · #214919 ·
Re: Kenwood TKR-820 UHF
Taking these suggestion in and it should keep me busy for a few months.... external power supply (have), fix PS/caps, power switch clean and test... THANKS to all!
By nh6bf · #214918 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
Had a grain silo place where we had some equipment complain about "our" antennas laying in the corner of the roof. Well, not our antennas, they were left over paging customers. But, we decided to
By K8TB · #214917 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
At 4/28/2025 11:09 AM, you wrote: The reason I contacted Commander was because I was concerned with the lowest VSWR at 427MHz for a 449MHz stamped antenna which I picked up second hand. They were
By Bob Dengler · #214916 ·
R266A -Spectrum analyzer ghosts (internal signals)
Hello members, I have an old R2660A (IDEN option) that I replaced all the 33uf electrolytics caps on Interface board ( each one had leaked). Luckily no major damage that didn't clean up. This fixed
By Oldguy · #214915 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
Electrical downtilt is created when the phase of higher elements *leads* the lower elements. An easy way to visualize this is to take a multi-element antenna (a dipole array or whatever is easy to
By Jeff DePolo WN3A · #214914 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
I might add that I carefully tested my SuperStationmaster downtilt by placing it on a 10ft mast and monitored signal level on a spectrum analyzer while tilting it back and forth towards a hilltop
By Mike · #214913 ·
Re: Recording repeater audio
As my system is linked via Allstar, I use Broadcastify Ken ------------------------------------------------------------------------------ President and CTO - Arcom Controllers Makers of repeater
By Ken Arck AH6LE · #214912 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
The reason I contacted Commander was because I was concerned with the lowest VSWR at 427MHz for a 449MHz stamped antenna which I picked up second hand. They were able to look up info from my antenna
By Mike · #214911 ·
Re: Recording repeater audio
here is a full chain of utilities for 4 channels of recording with transcriptions.. https://wiki.w9cr.net/index.php/Radio_Channel_Logger#Transcription_via_OpenAI_service [email protected]>
By Darcy Buskermolen · #214910 ·
Re: Recording repeater audio
I use a registered version or Recall, and have been doing that since 1996 (and still have all the audio files, so almost 30 years now). I don't save to the cloud though, but easily could serve them
By wj9jrg · #214909 ·
Re: Stationmaster type antenna available, 152 MHz., Nashville, TN
I think the engineer said it backwards and is wrong, because to make electrical down-tilt, you cut each collinear element shorter (a higher frequency), to obtain down-tilt.? For an example see this
By wj9jrg · #214908 ·
Re: Motorola GM300/Maxtrac rear rx pin not passing audio
Except he said the COS is still active and working fine. That would indicate at a distance the radio still works. But I agree, if he misstated, that's the most likely suspect. It's better to get
By wj9jrg · #214907 ·
Re: Kenwood TKR-820 UHF
I believe many people, myself included, merely jumper across the power switch when it goes bad. It's a repeater so it's always on anyway...
By Bradley Andrews · #214906 ·
Re: Recording repeater audio
Audio Grabber....VOX operated, splits files on start/stop and can save as MP3s.....and it's free! Can set save location local or on cloud iirc...have been using it for almost 20
By Chris Boone WB5ITT · #214905 ·
Recording repeater audio
Hello all, Has anyone ever setup or thought about setting up a computer to record repeater audio and?storing it?to a cloud resource, or is anyone else?interested in that sort of thing? Mark
By Mark Swanson · #214904 ·
Re: PD526 Duplexer Tuning
I have a local friend with access to much better test equipment than I have access to. I'm trying to see if he will tweak it the rest of the way for me. I got it in the ballpark so maybe he can finish
By Part 15 Engineer · #214903 ·
Re: Kenwood TKR-820 UHF
I've had issues with dirty power switches over time on these units. You might try a can of deoxit or contact cleaner in the actual power switch. You could probably confirm this is the problem by
By Chris Baldwin · #214902 ·