Thank Jay - I'll use those Loran lines and do some calibration. 250 watts dc input here - very constant with the loop. 73 Mitch On 2013-11-17, at 1:12 PM, <jrusgrove at comcast.net> wrote: > MP peaking >20 dB s/n in 28 mHz ... loran lines also quite strong. > > http://www.w1vd.com/grabber.html > > Jay W1VD WD2XNS WE2XGR/2 WG2XRS/2