So the 4th tower is up at my Virginia qth and I been pondering what to do on 80 meters. I am thinking of a 2 element yagi on the tallest tower(180 ft) but I have used a 3 element vertical wire beam w
John, I think 4sq vs 2L beam tradeoff depends on the beam height vs ground conductivity and thus the 4sq gain/pattern. W6UC has a 4 sq in S. Cal desert, alkaline soil I think, and I have a 2L JKanten
Yes. Several years ago, I did a modeling study of horizontal and vertical antennas vs height and ground conductivity. It's here. http://k9yc.com/Multi-Station.pdf N6BT (original Force 12 designer/own
Ground is fertile topsoil with average drainage, Tahiti would be 180ft Sent from my iPhone _______________________________________________ _______________________________________________ TowerTalk ma
If the antenna is in Tahiti I would use a vertical on the beach:) John KK9A Ground is fertile topsoil with average drainage, Tahiti would be 180ft Sent from my iPhone ________________________________
Remember that the high gain provide by salt water applies ONLY in the direction of the water. Also that radials or a counterpoise are still needed unless the base is over water and the return has con
Yes. Several years ago, I did a modeling study of horizontal and vertical antennas vs height and ground conductivity. It's here. http://k9yc.com/Multi-Station.pdf N6BT (original Force 12 designer/own
On 2/11/2020 1:17 PM, jimlux wrote: On 2/11/20 11:30 AM, Jim Brown wrote: On 2/10/2020 8:41 PM, Grant Saviers wrote: I think 4sq vs 2L beam tradeoff depends on the beam height vs ground conductivity
The QTH is in NY? That sure sounds like a "challenging environment" for any 80m beam. A 4SQ will be a rock star from NY (contesting point of view) and will have only about 1% of the environmental s
That's funny Jeff:) In reality an 80m beam can be built strong enough to survive the midwest. I had a homebrew linear loaded dipole with a 90+ ft element 160' high that held up well in Chicago. Howev
AC0C is a funny guy. At the risk of overstating the obvious, we get pretty harsh wx up here in NB as well. I daresay worse than NY even at times. Even if I could afford it (and I surely can't), I wou
<That's funny Jeff:) In reality an 80m beam can be built strong enough <to survive the midwest. I had a homebrew linear loaded dipole with a <90+ ft element 160' high that held up well in Chicago. Ho
I use a Tornado on a re-engineered EF180C 86' 80m dipole. Only takes one with the coil split at the center. Replaced the LL with Phillystran and internally sleeved it where YagiMech said it was weak.
I think I am going to use both antenna systems and see what works best. Thanks all Sent from my iPhone _______________________________________________ _______________________________________________
I have 2-el wire Yagis for 80 and 40, both aimed to EU. The 80M Yagi is reversible. 73, Jim K9YC _______________________________________________ _______________________________________________ TowerT
JK has a nice compact 80m dipole (JK801) with T-Bar loading. It uses a Tornado tuner for moving around the band. You can cover the entire 75m/80m band. It's only 55' long and is very stout. I used th