[TowerTalk] WTB Top Ten Devices A/B Station Selectors

[Lux, Jim]

On 2/6/22 9:27 AM, Randy Farmer wrote:
> Strange. I've got loads of them in many places in my station antenna 
> switching and have never had a problem. Since I recently acquired a 
> new NanoVNA-F and have three spare Top Ten A/B selectors, I decided to 
> measure them all. I won't quote all the measurement results, but I 
> will summarize.
>
> 1. Over the range of 1.5 MHz to 54 MHz, the insertion loss of a 
> selected port went from about -1.6 dB worst case at 1.5 MHz to about 
> -0.35 dB worst case at 54 MHz. The insertion loss curve (S21) was 
> monotonic over the range.

It's interesting that the loss goes *down* as the frequency goes up.