Re: LF: Capacitive top hat question

[Andy Talbot <andy.g4jnt@gmail.com>]

The fluorescent light in my shack is located only 3m below the end of my top hat - with roof tiles and plasterboard in the way.   In dry weather lights quite bright when I transmit, with even as little as 100 Watts into the antenna.

Andy  G4JNT

On 4 November 2015 at 16:51, John Rabson <john.rabson07@gmail.com> wrote:

I have no experience of this at 136, but I remember visiting Ernie G3ERN at his QTH in Harlow and finding that I could walk all around the back yard and light a fluorescent tube when he keyed his top band mobile transmitter. This had a horizontal loading coil the length of a Commer J2 van with a shortish vertical whip at the opposite end from the feed.

It must have radiated fairly well as some time about 1963 I had a contact with him on a summer afternoon. He was in the New Forest and I was on Sark.

73 John F5VLF

> On 04 Nov 2015, at 17:29, Chris Wilson <chris@chriswilson.tv> wrote:
>
> 04 November 2015
>
>
> On my 136khz set up I have a short piece of ladder line (about 16 feet
> high, strapped together at the base only) feeding the corner of my
> horizontal quad loop, which is about 460 feet in circumference. If I
> am TX'ing with WSPR I can walk around under all of the loop and a
> fluorescent tube at waist height will light quite brightly. Should the
> loop also radiate as well as the vertical section? Sorry for the
> probably naive question, I am not sure whether it's normal or not,
> thanks.
>
>
>
> --
>
>
> Best regards,
> Chris                            mailto:chris@chriswilson.tv
>
>

john.rabson07@gmail.com

Researching history of RABSON, BLACKSHAW, GAUNTLETT, VERLANDER and ROBSONNE