Bill Tippett wrote: > BTW, the actual BW's of the roofing filters > in Orion (not II) are as follows on CW: .. > TT 1800 - 1400 Hz (in CW mode only, 1900 in SSB) Roofing filter has one BW in CW, another in SSB? 73, Sinisa YT1NT, VE3EA