Try setting the TG timeout to a lower value. The default is 2 seconds. You can set it as low as 100ms. Does that help?
I'm getting closer!
Once the TG timeout period has expired, it should accept the next enabled voice grant. It receives start-of-conversation type grants as well as in-progress type of grants.
I was thinking about this some more. The most likely reason is that version _1304 does not keep track of all the control channel information when the roaming mode is enabled. On a frequency change, it has to receive the base frequency table, nac, wacn, sys_id before it can receive the voice channel grant. This is a limitation that the new versions are addressing. The testing version keeps track of up to 16 control channels persistently across frequency changes. I hope to start working on this again next week.
I'll make the offer if it will help... I can set up the P25 on the Broward County FL systems, with from one to three systems one simulcast P2, two appear unicast and operating as P1. I can set up a zoom meeting so you can connect and see anything going on you want. email me if interested.
Thank you sir! This was a larger than usual build. I think most people that requested to be notified were probably able to get one today. If not, please send another e-mail if you would like to be notified for the next build. Thank you to everyone for your support today! The receivers will ship tomorrow.
Thank you sir!
I was planning on having display units available soon. I ordered 25 partially built pcb assemblies (passives installed only) to get started. To answer your question regarding pricing, it was going to be $149. Unfortunately, someone bought up all of the MCUs and audio DACs. The DACs have a lead-time of 52 weeks when I looked around last. Both of those parts are utilized in the P25RX. As I mentioned previously, I acquired what I reasonably could of those parts before they disappeared. The shortage is most likely due to the downtime of manufacturers last year from Covid-19 issues. Once you mess up a chip-producing pipeline, it takes a while to recover. Hopefully the blip in production will pass. In the meantime, I need to conserve these parts for the P25RX. I'm already living on the edge like I imagine many people are. Today's sales are mostly going towards paying down the money I borrowed to buy those chips and related inventory to get through this shortage. I'm very grateful for the support.
This sounds like a potential HW issue that I have not seen before. Do you have any other powered-speaker systems you can test to see if the issue persists? I tried plugging in a mono-non-powered speaker. That didn't cause an issue. The audio outputs are AC-coupled, so I wouldn't really expect any issues with DC. Contact me via e-mail if you would like to return it for evaluation / repair.
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I haven't tried one of these yet, but it should work fine: part# "RPI USB-C POWER SUPPLY BLACK US". Looks like Digikey has them for $8. Obviously, you can get them from many different sources.
