Is it just me...

[Air490]

Being a public holiday I thought it would be a good day to set up a spreadsheet with the new digital control channels. Away I went cuting and pasting like a champion. That's when I found there seems to be more discrete control channels in the P25 system than there was in the analogue system. I found that using 31 CCs (in a PSR-500) covered the vast majority of sites in the state. So far I have found 40CCs and have only done about half the state.

Am I doing something wrong, or does the new system not re-use the CCs?

[centralcoastscanman]

Some of if not all of the current p25 control channels are the backup control channels from the old 4.1 system...

[Jay911]

When I was programming my PSR500, I found 96 distinct control channels in "the list". That coincidentally is 3 x 32. Three zones, three sets of 32 CCs?...

[Bigfella237]

~ I found that using 31 CCs (in a PSR-500) covered the vast majority of sites in the state. ~

There were actually 91 distinct control channels on the old 4.1 system.

And there are 93 "OBT ASTRO 25 Control Channels" in the current profile:

413.11250
413.18750
413.20000
415.05000
415.11250
415.96250
415.96250
416.05000
416.07500
416.08750
416.10000
416.11250
416.12500
416.13750
416.15000
416.16250
416.17500
416.18750
416.20000
416.25000
416.26250
416.28750
416.30000
416.31250
416.32500
416.33750
416.37500
416.38750
416.41250
416.42500
416.46250
416.47500
416.48750
416.51250
416.52500
416.53750
416.57500
416.70000
416.71250
416.78750
416.80000
416.81250
416.86250
416.87500
416.88750
416.90000
416.92500
416.95000
416.97500
417.00000
417.06250
417.07500
417.08750
417.10000
417.11250
417.18750
417.20000
417.23750
417.26250
417.28750
417.30000
417.31250
417.33750
417.37500
417.41250
417.42500
417.43750
417.45000
417.46250
417.47500
417.48750
417.51250
417.53750
417.55000
417.56250
417.68750
417.75000
417.93750
418.22500
418.52500
418.65000
418.66250
418.82500
418.92500
419.07500
419.15000
419.16250
419.18750
419.43750
419.57500
419.60000
419.77500
419.80000

Andrew

[citabria]

The term OBT always makes me laugh. Stupid bit of terminology that one..

[Air490]

OK then. Likes like an area based setup will be needed.
At least it keeps things interesting!

[Bigfella237]

Yeah, it always annoyed me no end that Uniden scanners won't allow you to input enough CCs to get all the freqs into one site, from memory I think the limit is 40 freqs per site?

It doesn't really make that much difference on the newer DMA scanners as it's still scanning the same amount of channels whether they be in one site or three, but on the older trunk-trackers it meant copying talkgroups across three banks which chewed up precious memory?

Andrew

[soupbones]

I don't have that issue with my Uniden 996?

[jaskel]

I dont have that problem either...works fine for me!