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To: PistolPaknMama
Speculation on my part. But being an Amateur Radio Operator I would strongly suspect that a relay/repeater system would be employed to provide a decent signal while deep underground.

Doesn't explain how the security forces would communicate during an emergency while underground.

VHF/UHF handheld radios would be marginal in a subway.
9 posted on 01/18/2007 7:35:11 PM PST by Milwaukee_Guy (Don't hit them between the eyes. Hit them right -in- the eyes!)
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To: Milwaukee_Guy

Couldn't/wouldn't there be separate repeaters for GSM frequencies and VHF/UHF frequencies?


10 posted on 01/18/2007 7:37:04 PM PST by Tree of Liberty (Islam delenda est)
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