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Old July 9th 04, 11:08 PM
Stephan Grossklass
 
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PS:

High 1st IFs like 55.845 MHz aren't quite uncritical, particularly with
very compact receivers - you easily get leakage around the 1st IF
crystal filter. You can observe this very nicely with Sony's ICF-SW7600
(-910 kHz rejection ~20 dB) or ICF-SW7600G/GR (~30-40 dB rejection). It
would be interesting to know the performance of the little ICF-SW07 in
this regard.

Stephan
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Old July 10th 04, 07:39 AM
WShoots1
 
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I was disappointed in the strong images in my FP200. Then I realized that
should there be interference on the desired frequency, the image just might be
in the clear for solid listening. G

Bill, K5BY
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Old July 14th 04, 05:27 AM
Mediaguy500
 
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High 1st IFs like 55.845 MHz aren't quite uncritical, particularly with
very compact receivers


That's high?

My radio's first IF is 240.1 MHZ.

you easily get leakage around the 1st IF
crystal filter.


Good information. I didn't know that before.

And just the other year or so, I didn't know anything about IF frequencies or
radio image frequencies.

I still don't know much about them.


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