Topband: 60' High T with Elevated radials

[Artek Manuals]

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
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