[Ham-Mac] RF from XM radio
Lon Kinley
majorlk at us.net
Sun Mar 4 23:09:26 EST 2007
At 7:29 PM -0800 3/4/07, Robert C. Smithwick wrote:
>Interesting. I'm learning a lot from your comments and those of
>others. I know nothing about "Sirius". Yes, I've heard the word
>before and sorta 'figgered' it is perhaps a network of Internet
>broadcast stations, but that may be way off. You can easily spot my
>ignorance!!
>Thanx for the brief introduction to it!
Sirius and XM are both satellite broadcasters, i.e. all their
programming is broadcast to earth from a satellite. They have just
merged into one company, however. It has nothing to do with the
Internet
The little satellite receiver picks up the signal from the satellite
and then feeds it into your vehicle's radio, either by an induced
signal into the cassette deck from an adapter, or by a VERY low power
FM modulator that either physically attached to the external vehicle
antenna or inductively coupled to an in-glass antenna. In either
case, any RF exposure is essentially non-existant.
73,
Lon - W3LK
Baltimore, Maryland
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