[Elecraft] How much rejection should I expect?

k6rb at baymoon.com k6rb at baymoon.com
Mon Feb 20 14:53:59 EST 2012


As Jim pointed out, there are two factors to consider - your receiver and
his transmitter. I operate SO2R with a pair of K3/P3/amp set ups. I live
reasonably close to other contesters who are usually operating the same
mode/same band as I am. Before, when I had a pair of FT-1000Ds, I could
hear 'em when they were within 25 KHz of me. Now, I often don't know they
are even on the air until I pass their operating frequences. So, the K3 is
excellent. But, I "dirty" transmitter that is producing close in spurs
will cause problems no matter what kind of RX you are using.

Rob K6RB


> I have a neighbor on the next street...our antennas are only about 800
> feet apart (according to Google maps). I know he doesn't run 1500 watts
> (luckily) but I think he does run 300 - 400 or so. My question is, how
> much receiver rejection and/or overload should I expect? He pretty much
> tears up the entire band on my K3 if my antenna is pointed his way, but
> not quite so bad on the side. On my P3, the entire noise floor is raised
> many S units (I'll have to switch to dB and see what it looks like.
>
> Should I expect better, or is this to be expected. I know I haven't
> provided any real details, but I think many will get the idea.
>
> Unfortunately, we're both primarily CW ops!
>
> Allen N5XZ K3 #2324
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