[Johnson] Challenger Info

[w1eof at hamnutz.com]

HowdyAll -

I will soon have a nice Challenger in my collection. It seems that many 
(most?) do not think too highly of this radio. I am interested in 
hearing about common prlblems, fixes, upgrades, and modifications that 
are documented.

I am mostly interested in leaving it stock unless there is a compelling 
reason to change it, and there is an easy way to put it back to 
original. But I'm always willing to listen to reason. :-)

73,

Mark W1EOF