I used a 22 uF cap paralleled with a .1 (104) cap, bypassing the output of the regulator. ?My Raduino is right above the main board, in a plastic case. ?I also removed all of the excess wiring, and used coax to connect the output to the DDS connector. ?I have very slight clicking only audible when headphones are used. ?I think in the Raduino instance it is power related. ?2 A linear 12V supply feeds my radio.
73\Larry
KB3CUF
