[Scan-DC] PG New radio system

[RADIOINSTL at aol.com]

First lets clear some things up
.
Neither PG nor Loudoun will have P25 Phase 2 systems.  Both will have  
Motorola proprietary systems. THE ONLY RADIOS THAT WILL WORK IN TDMA MODE WILL  
BE MOTOROLA RADIOS. If and when they ever get upgraded to a P25 Phase II 
system  has yet to be seen.
 
The reader below asks if it will work with the P25 systems (phase I) that  
most jurisdictions around here use. There are only 3 P25 systems in the 
area:  Arlington County, MdTA BWI airport system and the Military Joint NCR 380 
Mhz  Radio system.  
 
Again EVERYONE else (DC, Alex, MWAA, Fair, PW, Mont, Fred, Carrol, Howard,  
AA, Calvert, Charles, Fauq, Manassas, Balt City, Balt Co., Harford, QA, 
Talbot,  Dorchester, Caroline and Wicomico) uses a Motorola proprietary system 
and can  only use Motorola radios (or EFJ who is licensed from Motorola).  
 
Both of these facts mean that these systems are not P25 by the definition  
alone of an open standard system (P25) .
 
 
BE very careful what you refer to as P25 systems since most in this area  
are NOT!!!
_ 

 
In a message dated 7/31/2009 23:13:59 Eastern Daylight Time,  
scan-dc-request at mailman.qth.net writes:

I kindof  skimmed the other messages here; does anyone know if this 
proposed new thing  (did I see TDMA?) is compatible with / will interoperate with 
the APCO-25  systems that most jurisdictions around here are now using?  (I 
did see  that it will not work with our  scanners...)



_ (mailto:sglazer at umd.edu) 
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