Thread: Ic Pcr2500
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Old 12-22-2008, 11:10 PM
Mike_G_D Mike_G_D is offline
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Join Date: Dec 2002
Location: Carlsbad, CA
Posts: 324
Default Bee00-14c

offsite,

This site is outlined here on RR: http://www.radioreference.com/apps/db/?sid=3856.

It is a true P25 site so the CC is at 9600 baud.

My PSR500 and PRO-197 track this fine though a lot of the voice communications are encrypted (or seem to be at times).

Why does the PCR2500 have problems with the digital voice demod on the 3600 baud San Diego mixed mode RCS? Most consumer radios decode these digital communications fine while they have great difficulty with the pure P25 9600 baud simulcast systems that are becoming more popular. It's odd that the 2500 is having the apparent reverse of this situation!

I used to think that the 3600 baud Motorola systems did not use simulcast at all but I guess they do according to some information I recently received concerning how some of the RCS sites are set up. However, while the site I listen to usually (site 02, North Zone) does simulcast with multiple transmitters (and I can hear the resulting phase distortion while listening to the CC - I used to think it was just due to my location as I have many mountains to the east of me) I don't seem to have major problems with digital voice decoding at least with a good CC decode rate.

It just seems odd that the 2500 has difficulty with the SD RCS digital voice traffic.

-Mike
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