[Elecraft] Receivers?

[Bill Frantz]

The West Valley Amateur Radio Association (WVARA) Field Day 
operation, using the K6EI call, has been using a mixture of 
mostly K3s with some K2s and KX3s. We run QRP and last year 
entered as 11AB. We have very little difficulty with mutual 
interference, even when we are running SSB, digital, and CW on 
the same band.

The only extra filters we use are in conjunction with a 
triplexer which lets use one tribander on 10M, 15m, and 20M at 
the same time.

We have been quite successful with the approach for many years 
as can be seen from the field day results.

This year, we took our operation to Sierra County for the 
California QSO Party. There we ran 2 K3s and a KX3, all at 100 
watts. We kept the SSB stations on separate bands. The worst 
interference problem we had was when our batteries got low and 
we got a lot of IMD in our signals. That caused interference 
between our stations. Replacing the batteries with freshly 
charged batteries cured the problem.

73 Bill AE6JV

On 12/12/15 at 9:58 AM, k3ndm at comcast.net (Barry LaZar) wrote:

>I am using Field Day as a worst case scenario. I can't think of 
>any situation that is worse than have a collection of radios 
>operating in close proximity, to include their antennas.  QRP 
>operation does offer the least challenges, but it still does 
>have its problems. At the other end, the serious QRO stations 
>like W3LPL all take special precautions in field layout and 
>they use bandpass filters. However, I think you know all that.
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