[Elecraft] (K3) two K3's operating on same band

[Jim Brown]

On Wed,5/13/2015 8:16 PM, Robert G Strickland wrote:
> Two questions re contest hardware setups:
>
> I have regularly read comments from various contest operations to the 
> effect that two K3's can be operated on the same band [with common 
> sense frequency separation]. This is due to the rig's excellent 
> ability to reject adjacent channel signals. Any comments on this point?
>
> Assuming such operation is possible, does this require separate antennas?

Absolutely!  At home, I have two towers about 200 ft apart, one with a 
3-el SteppIR,the other with monobanders for 20 and 15, and a 10M 
monobander on a low pushup mast. If I carefully orient them so that the 
are approximately in line, (that is, pointing them in a direction that 
puts at 90 degrees to the other, I can run two K3s on the same band with 
each driving a Ten Tec Titan to 1500W.  I can NOT do that if one antenna 
points to the other one. :)

On CQP county expeditions, we run CW and SSB on the same band each with 
a K3 driving a KPA500. Separation is roughly 200 ft on 20-10, and about 
300 ft on 80 and 40, and those antennas are all carefully located so 
that when aimed to the east coast, they are inline as described.

73, Jim K9YC