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SPLATTER, EVEN IF THE TRANSMITTED SIGNALS THEMSELVES ARE CLEAN.  MODERN
RADIOS ARE LESS PRONE TO THIS, BUT IT CAN STILL OCCUR.  WE SOMETIMES CALL
THIS PROBLEM FUNDAMENTAL OVERLOAD, MEANING THAT AN INCOMING SIGNAL IS SO
STRONG THAT THE RECEIVER SIMPLY CANNOT REJECT IT EVEN THOUGH IT IS NOT
TUNED TO THAT FREQUENCY.  THE RESULTING ARTIFACTS CAN BE LOUD ENOUGH TO
COMPLETELY OBLITERATE THE DESIRED SIGNAL.  THIS IS WHY RECEIVERS HAVE
ATTENUATORS.  MOST HAVE A FIXED TYPICALLY 20 DB OR VARIABLE ATTENUATOR
SELECTABLE ON THE FRONT PANEL THAT WILL REDUCE THE STRENGTH OF INCOMING
SIGNALS.  THE RECEIVERS FRONT END IS THEN MUCH MORE EFFECTIVE AT REJECTING
THE UNDESIRED ONES.  I HAD EXACTLY THIS PROBLEM AS A NOVICE OPERATOR BACK
IN 1975.  MY HEATHKIT RECEIVER HAD NO ATTENUATOR BUILT IN AND WAS GETTING
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