On Sun, 15 Nov 1998 22:59:35 -0500, you wrote:

>At 03:51 PM 11/15/98 EST, you wrote:
>>Hello,
>>
>>Excuse me for a question except subject (perhaps not?), but like there are HF
>>engineers among you, a hospital would wish to block the portable
>telephones. I
>>know that there are solutions, but how to make?
>>
>>Cordially,
>>Dan
>>
>
>
>Gee, I'm just wondering why a hospital would want to stop cell phones? My
>first guess was to prevent them from interfereing with sensitive medical
>equipment. If so, then any of the suggestions of jamming and sheilding
>wouldn't help things much.
Shielding would work, as a phone will not transmit until it receives a
signal from the base station.
Also jamming would probably require less power than that emitted by
the phone.