My county has recently upgraded to a UHF P25 system that simulcasts using the CQPSK standard. That being said, the tac channels are all analog. The Grants/Bonds were not sufficient to replace every radio in the county and we were left with the option of purchasing our own radios. We could have rode the bid and purchased new radios from MOTO for $1500-$3000 each, or acquire surplus radios from other means for a fraction of that.
We decided to obtain several XTS3000 portables and Astro Spectra mobiles as they are plentiful and simply replaceable vs repairable at their current costs. In operation, both models operate flawlessly, until they attempt to scan. The P25 channels (3 of them) are set to the correct modulation, normal squelch, fast unmute, Non Dynamic Scan, Non Talkback and Selected Channel Priority. We have 8 channels total, the rest are analog.
The radios have no issue picking up the analog channels on scan, but even if I am set to a P25 channel (which would make that channel priority) it misses entire transmissions on all P25 channels, or hear only small parts of the transmission.
I have attempted many different settings but none seem to improve their performance. I have owned many of these models in all bandsplits, but never encountered this issue before. This is the first time i have encountered the CQPSK standard though.
I would be greatful if anyone has a solution to this issue.
Thank You.
We decided to obtain several XTS3000 portables and Astro Spectra mobiles as they are plentiful and simply replaceable vs repairable at their current costs. In operation, both models operate flawlessly, until they attempt to scan. The P25 channels (3 of them) are set to the correct modulation, normal squelch, fast unmute, Non Dynamic Scan, Non Talkback and Selected Channel Priority. We have 8 channels total, the rest are analog.
The radios have no issue picking up the analog channels on scan, but even if I am set to a P25 channel (which would make that channel priority) it misses entire transmissions on all P25 channels, or hear only small parts of the transmission.
I have attempted many different settings but none seem to improve their performance. I have owned many of these models in all bandsplits, but never encountered this issue before. This is the first time i have encountered the CQPSK standard though.
I would be greatful if anyone has a solution to this issue.
Thank You.
