Sprint PCS - Re: Where to Buy a Cellular Phone Jammer (no lectures or legal opions

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Re: Where to Buy a Cellular Phone Jammer (no lectures or legal opions

CharlesH

2005-06-28, 6:55 am

SS wrote:

quote:

> "tim" <timothybil@comcast.net> wrote in message
> news:Xns9682D80689D1
2timothybilcomcastne
t@207.69.189.191...
>
>
> Ummmmm- doesn't a jammer operate as an rf transmitter and on the same
> frequency as the cell phone? Wouldn't that make it as bad as the cell phone
> itself......or maybe worse, as it would be operating all of the time?

Don't know about narrowband protocols like GSM, but in order to jam a
broadband signal such as CDMA uses, the jammer is going to have to be
emitting quite a lot of energy across a fairly wide bandwidth (several
MHz). And it would be immediately obvious to anyone using the debug
screen on a CDMA phone, when simultaneously the received signal strength
shot WAY up and the signal/noise ratio dived WAY down.

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