Don,
The broadband jammer is the most traditional of all in electronic
warfare. If a receiver can withstand substantial AWGN (additive white
Gaussian noise), chirp, and CW jam, then that's the receiver for me. :-)
73,
Mike ab3ap
On 09/15/2015 06:51 PM, Don Wilhelm wrote:
I am going to go off on a wild tangent as a method of testing all
receivers for the ability to copy signals in the midst of very crowded
band conditions and/or the presence of noise. Whether those receivers
have analog front ends or an ADC.
An extremely crowded band could be simulated by broadband noise.
So take a medium strength single signal (say S-5) and inject it into the
receiver under test.
Now add a low amplitude broadband noise signal, and increase it until
the signal is buried in the broadband noise.
The receiver that can withstand the greater broadband noise level while
still recognizing the single signal "wins".
That says nothing about the overload of the ADC for those receivers that
put the ADC at the antenna - that is something for other test parameters.
73,
Don W3FPR
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