[CQ-Contest] Antenna Switching

[Jim Brown]

On 9/19/2023 10:53 AM, Pavel Perchine wrote:
> Jim, I do not believe that there is any antenna switch on this planet which
> can provide -100dB isolation on 28MHz, even 75-80dB range is an excellent
> achievement...and the number depends on how it is measured.

I measured S21 using a VNWA3E between TX ports with all output ports 
open circuit.

73, Jim K9YC