Paul - I am sure that you have something twisted about; "I'm still searching for an effective 80 meter DX antenna that can offer the lowest signal to noise ratio..." You want a high signal to noise r
Author: "James R. Duffey" <JamesDuffey@comcast.net>
Date: Tue, 13 Jul 2004 17:43:48 -0600
Bill - You asked "We know that common-mode currents on the coax CAN cause problems -- and since it's so easy to prevent this, why not do it?" It is good engineering practice to use a balun whenever a
Author: "James R. Duffey" <JamesDuffey@comcast.net>
Date: Sat, 29 Jan 2005 14:52:08 -0700
I think it was a TV cameraman on one of the light poles. - Duffey -- James R. Duffey KK6MC/5 Cedar Crest NM 87008 DM65 _______________________________________________ See: http://www.mscomputer.com f
Rob - I share your concern with QST's cavalier attitude toward radials. The real problem with statements such as those in the February QST: "For verticlal radiators (including slopers), lay out radia
upgraded from tech. He has been trying to work stations >using a slinky antenna in his attack but didn't have any luck at all. I gave him a Hustler 4BTV vertical. He put it up in >his back yard on a
Hans - Try: "Designing Trap Antennas: A New Approach" by Yardley Beers W0JF Ham Radio August 1987" He also had a couple of articles in QEX. A search on the ARRL periodical index should lead you to th
That should be trap resonant frequency = SQRT(flow*fhigh), not trap = sort(floe*fhigh). I didn't check the autocorrect. Sorry - Duffey KK6MC -- KK6MC James Duffey Cedar Crest NM _____________________
Jim - I use CocoaNEC from W7AY: < http://www.w7ay.net/site/Applications/cocoaNEC/ > It works very well with a pretty good user interface. I have used it a lot to model a variety of antennas. It is un
Even though a perfect ground, RF or otherwise, does not exist in practice, the RF ground is not a myth. At least not a myth in the same sense that Thor, Zeus, just taxes, and Chupacabra are a myth. T