Thanks Andy. It is difficult to fine tune my receiver (Lowe HF250) that closely using the front panel controls. There is a problem with the RS232 interface so I cannot do things more accurately. 73 J
7dB is OK. 0dB is the optimum, but +/-10dB on this is within range. Your frequency cal. is 60Hz out :-) Andy www.g4jnt.com On 3 October 2010 17:25, John RABSON <[email protected]> wrote: Pretty c