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.
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