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Re: Plagued with Mode J "noise" on TX



Douglas Cole wrote:

> Scott Townley wrote:
> >
> <snip>

> What you really need to do is get a seperate antenna for each band and use the
> DCI filters as they are a real "brick wall" when it comes to mode J desense (
> well ok it is just my opinion) , or find yourself a nice bandpass cavity for the
> vhf port etc.....

Keep in mind that a cavity filter will pass the 3rd harmonic just as well as the
fundamental.  You need a low-pass filter of some sort.  That's why the multi-band
diplexer has been suggested.

73
-----------------------
Jim Walls - K6CCC
k6ccc@amsat.org
http://home.earthlink.net/~k6ccc/
626-302-8515    FAX  626-302-9999
AMSAT member 32537 / WSWSS member 395


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