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Old October 12th 05, 09:20 PM
Steve Nosko
 
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"Bruce" wrote in message
...
...

Now, if the receiver IS well shielded enough, if you can insert a
switchable attenuator in the coax, you can reduce the signal strength
significantly...and, FM receivers get very non-linear below about 20dB
quieting, they quiet faster than the actual input. In otherwords, you
could get 3-4 dB quieting change for 1dB of singal change. What this will
do is make you antenna pattern SEEM narrower.... -Bruce


Two things here.

The "offset attenuator" gets you the equivalent to a shielded receiver
without the shielding and very simple construction.

There are designs on the web for "quieting meters" and I have even seen one
design where the receiver s-meter signal was summed with the quieting signal
resulting in one very large dynamic range signal strength indicator.
73, Steve, K,9.D;C'I


 
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