Will Sperling writes in a message to All
 WS> The radio works just fine except for cellular overload on 800 
 WS> freqs. I'm told that's because it's a double conversion receiver 
 WS> - 
Overload is not a problem endemic to 2 conversion receivers - it is a problem 
of using "bipolar" (NPN or PNP) transistors in the RF stages.  If you use 
FETs there it will have a better chance of not overloading.
  
And even image rejection - which is what you mean - I think - should not be a 
problem in a well designed 2 conversion radio.  The problem that you have is 
that the high IF isn't high enough and selective enough.
  
Manufacturers make products that they think will sell.  Sometimes "good 
enough" is what is necessary.
 
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