How close can you get a 20m yagi, below a 2-el 80m yagi ? I have an option to use a F-12 Sigma 280-S shortened 80m yagi at the top of the mast, with the F-12 340N at the bottom of the mast. Spacing b
Jim, wouldn't you think that the 20m yagi would suffer pattern degradation while the 80m yagi would be ok? 73, Gerald K5GW In a message dated 10/6/2010 7:35:00 A.M. Central Daylight Time, jim.thom@te
Jim, wouldn't you think that the 20m yagi would suffer pattern degradation while the 80m yagi would be ok? 73, Gerald K5GW 20m.. at least it gives me 20m capability. Another possible config would be
I also think you would have problems. Some years ago we tried a 5el 15M about 8ft above a 2el 40 (full length elements). The 40 worked fine but the 5el 15 was almost useless - higher VSWR, gain & FB
An e-mail to Force 12 brought me an answer for my Force 12 antennas in less than 24 hours. This is not the 40 meter antenna, but the reply was prompt. Between the C19 XR tribander and the "old" WARC-
As K4WJ pointed out the 3.5mhz to 14mhz is actually 4X (not 3X) in frequency. That's what I get for too much multi-tasking! 73, Stew... _______________________________________________ _______________
Placing antennas at right angles often worsens interaction problems. There should be little interaction between 40m and 80m if they're pointing in the same direction, but who knows what interaction t
I donīt think so. And 3.5MHz x 3 = 10.5MHz. 73 Peter, DJ7WW The harmonic relationship between 40 & 15 has always been a problem if the antennas are too close. The ratio between 40/15 (7mhz X 3 = 21mh
Danged new math! 73/k5gw In a message dated 10/6/2010 9:33:20 P.M. Central Daylight Time, df3kv@t-online.de writes: I donīt think so. And 3.5MHz x 3 = 10.5MHz. 73 Peter, DJ7WW The harmonic relationsh
Placing antennas at right angles often worsens interaction problems. There should be little interaction between 40m and 80m if they're pointing in the same direction, but who knows what interaction t