Wondering if any active RTTY or digital mode ops are finding the Model 216 (500 Hz for 9 MHz IF) FSK centered filter worthwhile? Thank-you & 73, Ken Kreis, KA0W Rudd, IA -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com Search: http://www.contesting.com/km9p/search.htm