[hpsdr] nice 13 band preselector

[FRANCIS CARCIA]

Hi All,
Ebay, Racal there is a nice 13 band preselector. Also it is a dual unit so you can cascade the channels. I have the black model for the RA6830 but the guts are the same. Contol is 4 bits with a couple more bits for some models with the attenuator resistors installed.  I control my unit with a rotary switch. This would be a good front end for Mercury is you have BC problems. A smart software guy could control it whth the port on ozy.
Hermes looks very nice. frank WA1GFZ
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