Maxtrac TX Inhibit Question

Max · Post by **Max** » Tue Jul 11, 2006 2:47 pm

Hi
Is there a way with the RSS to inhibit the TX on a 800Mhz trunking system ?

Thanks for any Help
Max

Rick Rock · Post by **Rick Rock** » Tue Jul 11, 2006 9:08 pm

Remove the mic?!

Max · Post by **Max** » Tue Jul 11, 2006 9:33 pm

I would like to thank you for your reply Rick Rock...that's a grat idea.I should have thought of that before posting my question
Thanks
Max

Post by **wavetar** » Wed Jul 12, 2006 4:09 am

It doesn't have a 'TX Inhibit' function in the RSS like the MCS/Astro Spectra type radios. Just make sure "auto affiliation" is disabled, if it's given as an option anywhere.

Todd

Wile E. Coyote · Post by **Wile E. Coyote** » Wed Jul 12, 2006 6:35 am

I have been able to do this by setting up 2 trunking systems in the RSS. Set up one with the correct info, and another with an ID that is disabled in the trunking system. Program whatever talkgroup(s) you want to be RX only to the second "disabled" trunking system and that should do the trick. Simple - No. Effective - Yes.

Good luck with your project,
~WEC

motorola_otaku · Post by **motorola_otaku** » Wed Jul 12, 2006 6:48 am

Maxtracs will also take "700000" as an individual ID. AFAIK, a Smartnet controller doesn't recognize this as a valid ID and will bonk you if you inadvertently try to transmit. However, you ARE still transmitting ISWs on the system's CC input freq. If you don't need any transmit capability at all, just unplug the TX line from the RF board to the PA.

Max · Post by **Max** » Wed Jul 12, 2006 8:53 am

Thanks
I looked the wiring diagram on Batlabs and found if i cut the GREY wire for the mic jack,it will stop the radio from TX and still allow you to program it.

motorola_otaku · Post by **motorola_otaku** » Wed Jul 12, 2006 12:27 pm

That will prevent inadvertent transmitting via the microphone, but it won't prevent transmitting altogether. The only way to do that is to physically disable the transmitter, and the easiest way to do that is to unplug the exciter feed from the RF board to the PA. It's non-destructive too; i.e. if you wanted to sell the radio later on, you could just plug it back in and have a 100% functional radio versus having to replace or re-solder jumpers.