John
touche !...for clarification, 65' high ( at top), Supported by 70' tall
hickory trees. Radials are 90' long (5' off the ground) 8^). lot is
200x270 ( just shy of 1.25 acres)
With non resonant, elevated radials, Common mode currents are a big
deal. And the choke ended up with 4 turns of coax through 8 FT31-240
cores, Fewer Cores got too hot to touch at 1KW, The measured choking
impedance of this is about 7K ohms
Plays well though, even with my Florida handicap I have worked 79
countries since getting back on top band in March of this year (1/2 of
those on CW and 1/2 FT8)
Dave
NR1DX
On 11/12/2019 1:47 PM, John Zantek wrote:
To fill in the scenario for the curious, I was running about 800 watts to a 60'
T wire vertical, with three 90' above ground radials. And a 200' BOG to the NE
on receive. Modes used were both CW and FT8
The RADIALS are 90ft above ground? That means the T is 150ft up? Wow! Two
monster towers? How much land do you have?
A newbie to TB here. I'm putting up a T, too, but the radials will only be up
10ft, and I'm depending on my 75ft evergreens to support the T, which is 80ft
across.
73 John W7CD
--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com
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