Warren & All: On my HD-1420>FT-847 you are solid copy at 559~569 with my 18"x70'x18' EWE antenna. With my 1948 Hallicrafters S-51 you are 539 using a dual J310 e-probe with a 10" x .75" wide probe 20ft from my house and iup 15ft. Interesting thing is the old diode valve noise limiter in the S-51 works better than the NB in my FT-847..... 73 Mike wa3tts