Agreed Ed. Keep the tower reflector on contesting.com or move it to groups.io. I plan to continue to subscribe either way. Marsh, KA5M All those who are needing to "upgrade" TT are free to move to th
NOAA has an online calculator for estimating the declination at any longitude/latitude on a specific date. https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml Marsh, KA5M Is it time to mention
Scott, yes a great setup for both DX and NA. Marsh KA5M Since 2009, I have a three-high stack of Force 12 C-31XR/C-51XR. 118 ft / 85 ft / 52 ft (33 ft stack distance). All my HFTA terrain profiles on
Yes, match at the feedpoint. You might check out Balun Designs: https://www.balundesigns.com/1-2-balun-25-to-50-ohms-3kw-1213/ Marsh, KA5M A somewhat related question - as the R component at the feed
I stand corrected. A vertical with radials is of course unbalanced. I'm appropriately embarrassed. No more antenna advice from me. Marsh KA5M --Original Message-- From: Richard (Rick) Karlquist <rich
See attached. Hope this helps. Marsh KA5M I know I am late (always) to this but downsizing and replacing the 160 ft rotating tower with a nice 3el 40 with a 70ft Tristao and a XM240. The band width i
The attachment didn't work, so here's the link: http://www.k3lr.com/engineering/moxon/W6NL_Moxon104.pdf Hope this helps. Marsh KA5M I know I am late (always) to this but downsizing and replacing the
Thank you Dave. 73, Marsh KA5M From W6NL: The history of this antenna begins with my 2003 antenna with 27-foot boom, designed for our 125 mi/h (200 km/h) winds. See https://www.kkn.net/dayton2004/day