[AMPS] receivers

[Peter_Chadwick@mitel.com (Peter Chadwick)]

Tom says:

>Blocking dynamic range is the ratio of the weakest
>signal that can be heard to a signal off-frequency 
>that causes a detectable difference in noise or level 
>of the desired signal.

So it's a sort of mixture of phase noise performance and gain compression. Needs
a good signal generator to measure - or
do it at 21.4MHz minus a few kHz with a 21.4MHz filter 
cleaning up the sig genny. Needs to be plotted against offset to be evry
menaingful though.

Interestingly enough, have you noted how all the ARRL review phase noise plots
are pretty much always the same numbers? 
Is this because all rigs are pretty much the same, or is there
a systematic effect?

73

Peter G3RZP



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