Dave, A simpler way to do this would be {CAT1ASC RG100;} (no ASCII-to-hex conversion required). 73, Rich VE3KI K6LL wrote: > The command RG100; sets the K3's RF gain at 100. It can be any > number from 000 to 255. In N1MM, this is implemented by the > macro > {cat1hex 52 47 31 30 30 3b} >