Tuesday Glitch for Philadelphia's Police Radio System

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K8TEK

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I'm interested in knowing how their radios switched to an "alternate band". Typical stupid reporters.
 

RADIOGUY2002

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I think we should use a

I think we should use a Crime plotting map for all the prolbems this systems has. Its amazing it has not cause more havoc. But then again what is to much?
 

jcardani

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The Alternate band was J-band. Police radios in the 1st and 17th districts switched over to J-band during the outage. I was listening at the time. Radios were getting an "out of range message" on their district talkgroup (South band) - which is on the B system.

The police use system B for police and system A for fire, airport, municipal, etc. Police J-band, M-band, and T-band can operate on both systems A and B. Both A and B systems overlap the city 100 percent. This is done for redundancy.

The problem was in the controller of the Grays Ferry site on System B so when they switched to J-band, they operated on system A. Motorola techs fixed the problem in about 30 mins.
 
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