The talk permit tone can be heard before audio while being received by other subscriber units. This happens even with the technician handset directly connected to the IP-223. This is not an issue with our current users, but I just want to know why it is doing this, because for some instances, it could be an issue in the future. Again when a console user transmits the talk permit tone is heard before any other audio. All radios are Motorola XTL 5000 base stations connected via tone remote to the IP-223 in a 4-Wire configuration.
On a separate note, does anyone have any experience with Motorola trunking systems and Telex IP-223 integration in general? I have had a lot of experience with the Telex product family, but am new to managing a trunking system, so just looking for some help to make sure it's not something on the trunking system side that I might be missing. Some console users are experiencing busy tones, everything seems to be correct on the Motorola system side, I was wondering if any TX or RX delays have needed to be adjusted at the 223 level to discourage the inhibit tone. Originally I was thinking that maybe if a dispatch user attempts to transmit quickly that the go ahead tone would be coming back down the wire line and be seen as a carrier or audio traffic causing the radio to produce the inhibit tone. Any thoughts or suggestions? I can dive into what I have changed at the user configuration level, just wanted to throw out the symptoms first.
Talk Permit Tone and IP-223
Moderator: Queue Moderator
-
randymince
- Posts: 62
- Joined: Thu Jun 21, 2007 2:33 am
- What radios do you own?: MOTO,HARRIS,TELEX,RAYTHEON,GD
Talk Permit Tone and IP-223
...And that's how radios work
Re: Talk Permit Tone and IP-223
It would probably be wise to add 100ms of delay to the tx and rx paths for every line just to pad the buffers.
-
randymince
- Posts: 62
- Joined: Thu Jun 21, 2007 2:33 am
- What radios do you own?: MOTO,HARRIS,TELEX,RAYTHEON,GD
Re: Talk Permit Tone and IP-223
For sure, that is something that was done pre trunking migration. Bill have you experienced hearing the talk permit tone like I described?
...And that's how radios work
Re: Talk Permit Tone and IP-223
Yep. On Kenwood LTR which means you need a talk permit for every transmission. You hit ptt, half second later talk permit tones are heard, dispatcher starts talking. The tones never go out over the air. I'd go back over the wiring and internal IP223 jumpering to make sure it is not cross-connected or one jumper left in 2W.