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ernie870654

join:2002-04-22
Cumming, GA

reply to Voyager2K2
Re: Philly's Nightmare

Don't be silly!

The Nextel & Public Safety communications problem is related to adjacent channel interference. The article you referenced identified this as...I quote "cell-phone signals are bumping up against public-safety channels"

It was poor engineering analysis on the part of the FCC engineers that allowed this to happen.

BPL and Ham radio is a co-channel problem which even a junior RF engineer can understand.

....and yes, I am a Ham and I work in the wireless industry.

ernie870654

cghh

join:2001-01-15
Milpitas, CA


2 edits
I read the reference articles, and they first talk about cellular interference, and then continue on talking about Nextel, which is a different beast. AFAIK, the interference between wireless phones and public safety radios involves only Nextel, since they share the same frequency band (SMR) as the 800MHz public safety radios. The cellular bands do not overlap with the SMR band.
Forums » An Interference Crisis


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