At 04:16 PM 7/4/2007 -0700, you wrote: >--- Patrick Martin <[EMAIL PROTECTED]> wrote: > > > Greetings, > > > > After adding a second good copper pipe ground rod at > > the termination > > point of the SW EWE, I have found I have really > > increaded the nulls. > >How deep are your ground rods? I wonder if going >really deep will help or do nothing? I think this is >also a function of ground conductivity.
Powell, Around here, probably an 8-foot ground is minimum. Don't forget that a ground rod is going to have capacitive coupling to earth, so the equivalent R-F resistance will be lower than the D-C resistance. >I'm not going to do it, but *IF* I fired up on 1720 >with a good and correct antenna, could you hear it IF >I used one watt? Patrick may not, but I SURE would. I used to hear three 100-mW MEDFER beacons (VA, MD and SC) above 1600 before X-Band started up. I think you can legally do 100 mW at 1720 kHz. Anyone know anything contradicting that statement? >Powell (not planning to be a pirate...) > Charles Charles A Taylor, WD4INP Greenville, North Carolina _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com