Bob, W7SNR wrote: "Has any one heard of a filter manufacturer by the name "Nrod" out of Florida? Supposedly they make filters for the MP/M5 that are superior to theYeasu filters. Don't know that to be fact however." ========== You probably mean "INRAD", in Oregon. Yes, they are superior to Yaesu's filters, and less expensive. 73, de Earl, K6SE