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Hi Kurt:
What if there were two jamming carriers where they both were in the
passband of the RF front end and separated by the IF frequency.
Neither one needs to be the station the radio is tuned to. For example
a radio listening to 106 MHz and jamming signals on 90 MHz and the other
on 100.7 MHz? Any non linearity in the RF processing would generate the
IF frequency.
73,
Brooke Clarke, N6GCE
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KD7JYK, 49H7KR wrote:
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What is I.F. jamming? If it is a carrier on the IF of some radios, for
example 10.7 MHz, it's not too effective. A lab I worked with experiemented
with this using cheap FM receivers for the test and found 100 W was only
effective a few feet, at some 50 feet, the desired signal plus the jamming
signal came through equally and there was no effect at about 200 feet.
Kurt
Rosetta Proving Ground, Nevada
Hell's Laboratory
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