George, I don't have the '04 handbook, but I believe the HPF shown in the '02 is the same. At my last QTH I was less than two miles from a 10KWday/1KW night AM station on 1720. The filter which I bui
Eric, Several years ago I built the "Scoop Loop" described in QST and the Antenna Anthology. I used it before having room for any separate RX antennas. It would effectively null the line noise from t
Correction. Mine was the W1FB 4T-ES loop using RG62. 73 Don K5AQ _______________________________________________ Topband mailing list Topband@contesting.com http://lists.contesting.com/mailman/listin
Mike, I used thermostat wire for several of my reversible Beverages. Got it in rolls from the local electrical wholesale house. It was 2-wire #20. As I recall, the characteristic impedance measured a
Jim, I recommend the SCAF-1 from Idiom Press for an audio filter. Mine works very well and is fairly easy to build from the kit. 73 Don K5AQ _______________________________________________ Topband ma
John, The preamp is from QST, August 1988, pages 22-24 titled "Preamplifier for 80- and 160-M Loop and Beverage Antennas" Took a while to find it. Could remember seeing it in my reprint file but not
Raoul, Good luck on your radial system. I smile at the guys who will not get on Top Band because of too few radials. My DXCC on that band was done from an 80X123 foot lot in suburban Dallas using an
Greg, Why not load your tower for 80/160. I have done that for over 20 years and been extremely pleased. 73 Don K5AQ _______________________________________________ Topband mailing list Topband@conte
Why not just gamma match the tower and use it as a vertical. Less horizontal radiation and more low angle for DX. I have used a setup like that for the last 23 years or so in two locations. DX total
WTAW, a 10KW daytime station on 1620 gave me fits when it came on about a mile from my QTH. The mfj731 allowed me to make measurements to set up my 80/160 antennas. I recommend it. 73 Don K5AQ ______
Bob, Look in ON4UN's Low Band DXing book, chapter 7 for the info on Beverages of most any length. 73 Don K5AQ _______________________________________________ Topband mailing list Topband@contesting.c
Frank, Not me. You asked the question I was considering. 73 Don K5AQ _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
Rich, I've used similar wire buried for 32 120 foot radials around my LM354 loaded tower at three different locations. Works fine. Mine is buried just under the grass roots so is a permantnet install