Hi Ulf,
You are correct, it is best to put the highest frequency filters closest to the connectors. The EA2-12 relays have good RF characteristics but putting the high frequency signals through as few as possible makes the most sense.
I guess that my logic went in frequency, not filter bands so if you have your filters set up like this
Filter 1 - 6M
Filter 2 - 10/12/15M
Filter 3 - 17/20M
Filter 4 - 30/40M
Filter 5 - 60M
Filter 6 - 80M
Filter 7 - 160M
Then the Band header control signals should be:
No pins grounded - 160M
Ground pin 1 - 80M
Ground pin 2 - 80M
Ground pin 3 - 30/40M
Ground pin 4 - 17/20M
Ground pin 5 - 10/12/15M
Ground pin 6 - 6M
There is a
chart on the website that shows the BCD band coding if you don't want to use a line for every filter.
73,
Jim WA2EUJ