[BC] FM Modulators for Satellite Radio

[Robert Meuser]

Richard:

These modulators have an RF switch. They need it to keep over the air 
stations out of the radio.

R

Richard Fry wrote:
>Rich Wood:
>>I no longer subscribe to satellite radio but I have a modulator
>>that's inserted in the car radio's antenna line. It doesn't radiate
>>and overwhelms any other signal.
>________________
>Just curious, does the receiving antenna get disconnected when 
>you're using the modulator?  If not, then the r-f output of the 
>modulator could radiate plenty from the car's antenna, unless it is 
>injected through some kind of directional coupler -- which seems a 
>bit exotic for this kind of a device.
>RF