[TowerTalk] Elementary Rx protection question

[Pete Smith N4ZR]

Do back-to-back diodes across a receiving antenna degrade receiver 
performance before they begin to conduct?  what I'm considering is 
back-to-back series strings of diodes to limit RF voltage at the front 
end of an SDR.  My working assumption is that the conduction threshold 
could be set below the damage level but above the ADC clipping level, 
but if it affects performance before the ADC clips then that's no good.

-- 

73, Pete N4ZR
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