Re: LF: Capacitive top hat question

["Graham" <g8fzk@g8fzk.fsnet.co.uk>]

I dont think its  that  simple Andy ,

 

16 ft is  not  much  for  136 ,  and the  loop  runs  up from  the  feed  point , which I think  is  a  corner ,, so  at  what  point  is  it a radiating  element  and  which  point  is it   top  loading 

 

Ae could look like a sloping  Y  at  some  point , the  wire  separation  must be  too  much to  act  as  one  ?

 

G,

 

 

From: Andy Talbot

Sent: Wednesday, November 04, 2015 8:00 PM

To: rsgb_lf_group@blacksheep.org

Subject: Re: LF: Capacitive top hat question

A pretty thoroughly top loaded vertical, Heff = Hactual

'jnt

On 4 November 2015 at 19:50, Graham <g8fzk@g8fzk.fsnet.co.uk> wrote:

(about 16 fee thigh, strapped together at the base only)

I wonder  what  exactly  is  radiating Chris ?

what  to  you  estimate the  beam  pattern to  be ,  I have the  idea , south  to  SV is down , compared to  say  North TF ? , the  levels  into Iceland  are significant ..

73-Graham



--------------------------------------------------
From: "Chris Wilson" <chris@chriswilson.tv>
Sent: Wednesday, November 04, 2015 4:29 PM
To: <rsgb_lf_group@blacksheep.org>
Subject: LF: Capacitive top hat question

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