>> >> 1. The 342 series is more selective than the 348, by virtue of the IF >> which is >> approx. 1/2 of the 348's. > > >> 348 IF is 915kc. Ho hum, what's new? Wait! How 'bout this? GW3NJY ran the '348 IF to a 12K8 in a '453 w. a 1kc xtal in the osc. section. 1kc-915kc = 85kc Get it? Elegantly simple Marty