Topband: 4SQ Arrays in proximity

[Jim Brown]

On 1/28/2020 8:43 AM, Mpridesti via Topband wrote:
> Then spent a lot of time listening to WebSDR receivers in EU and switched that relay box on/off to see if I saw any gain variation with the 160 antenna. I saw no difference. However I have found a very slight improvement in F/B or F/S when the 80 m array was open circuited (shorting relays engaged).

Both observations make sense -- the most sensitive characteristic of 
arrays like this is what happens in the nulls, which depend on very 
precise cancellation of signals that are equal and 180 degrees out of phase.

73, Jim K9YC