[Elecraft] Re: mod to allow K2 to handle huge in-band
signals--please try
Tom Hammond NØSS
[email protected]
Sat Jan 4 12:06:05 2003
Let's not confuse front end overload with what Wayne's trying to fix.
They're not the same.
Mere front end overload will probably NOT create the problem the addition
of the diodes is designed to protect against.
The two radios (one being a K2) must be VERY close together. I suspect
that being a hundred YARDS apart, even at 1 KW, might NOT cause this problem.
It takes a WHOPPING BIG signal input (as Wayne says, something like -6dB)
to cause the specific problem to surface. AND they have to be INSIDE the
filter passband to boot.
As Julian, G4ILO, recently comments, paraphrasing... "I suspect that few of
us really NEED this mod", and he is correct! However, it's too simple to
install NOT to do so when the next opportunity presents itself.
So, it's not a MUST HAVE mode, but at is a GOOD TO ADD MOD... sometime.
73,
Tom N0SS
Ron D'Eau Claire wrote:
>Is that enough to produce the "howling" effect? It sounded like it took
>another transmitter practically sitting on the same table ...
>
> >Mike, K5PU, wrote:
>I have a couple operators that live very close (within a few miles of
>me) that use their legal limit amps regularily and I'm always stumbling
>across them at 'peg the needle' db over.