Hi, Ive been trying to locate some basic info on 2 crystal filters... QF1A65 and QF1B65 made by Hi Q. They are in a Codan transceiver, so all I know is they are 1650kHz freq, The Hi Q site doesnt mention them in their support docs. I really want to know if one of them is an AM filter as this is what Im after for another Codan set. Any more info would be appreciated. JEFF ZL3JK