[Milsurplus] Milsurplus Digest, Vol 250, Issue 38

[hwhall@aol.com]

The horizontal section does provide capacitance but it is also carrying antenna current.

Wayne
WB4OGM

On Wednesday, February 26, 2025 at 12:41:53 PM MST, Brooke via Milsurplus <milsurplus at mailman.qth.net> wrote: 

Hi Wayne:

It's my understanding that the Inverted-L is functionally a vertical with the horizontal wire acting as a top loading capacitor.
Art W6TYP (SK) used this antenna on 160 AM.
-- 
Have Fun,

Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.

-------- Original Message --------


>  Date: Wed, 26 Feb 2025 06:02:14 +0000 (UTC)
> From: "hwhall at aol.com" <hwhall at compuserve.com>
> To: "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>
> Subject: Re: [Milsurplus] grc109 into coax fed 1/4 wave 40m vertical
> Message-ID: <607136001.3975302.1740549734084 at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
> 
> Per the manual, the antenna is supposed to be an end-fed inverted-L of 100ft total length.? 100ft is just 30.48 meters.? About 3/4 wavelength on 40m band.? That should present a fairly high impedance compared to a properly tuned 1/4 vertical with groundplane.? Perhaps the tuneup procedure in the manual is incorrect for that kind of antenna?
> 
> Wayne
> WB4OGM



______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html