Roy Koeppe wrote:
There are some. The factory provided me with a free upgrade kit which
eliminated a "swishing" sound in the received audio which occured when
QRN modulated the AGC. This was especially a problem in CW mode, on
Also there was a mod kit which lowered receiver audio hiss--I
installed both at the same time on the kitchen table. They had 'names'
can't remember them any longer. The factory should recognize these
by description. They are a MUST--performance was greatly improved.
Does anyone know the specifics of these mods? I contacted the factory
some time back, but it appears that the recipe has been lost.
Tnx - Al, K2ZN