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 fee
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
When I used to visit the Radio Club in Liverpool in the late 50s we met in a church hall just off Queens drive. One local with topband mobile parked in the drive would fire up 10W of top band take ou
(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 s
A pretty thoroughly top loaded vertical, Heff = Hactual 'jnt On 4 November 2015 at 19:50, Graham <[email protected]> wrote: (about 16 fee thigh, strapped together at the base only) I wonder wh
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 i
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 ele
Not sure why you talk about wire separation, Verticals properly are quire simple, this is not a pure vertical and not very simple to evaluate , Your making the assumption, that the system stops radia
Hello Graham, Friday, November 6, 2015 I am very interested in trying to understand how this thing is radiating, to be honest, given how low the loop is where it is fed by the vertical, and its close
To all intents and purposes a short (in wavelengths) vertical attached to an arrangement of horizontal wires is a simple (capacitively) loaded vertical. The horizontal part will radiate, especially i
Hello Mike, Saturday, November 7, 2015 Thanks for the info Mike, as always! Is there any real benefit in having the vertical section centralised within the top hat capacitive array, be it a horizonta
Hi Mike, Am 07.11.2015 11:58, schrieb Mike Dennison: [...] Several unbelievers have tried using purely horizontal transmitting antennas and have had poor results. The beauty of amateur radio is that
Hello Stefan, Mike, I assume that a good working dipole at very low height (4m = 0.6% of lambda) is due to a poor soil. I remember to have read somewhere thate (French?) military in the Sahara desert
Somewhere I have a paper describing something like that. I recall an antenna at ground level or actually a little buried, and its effective height was related to the depth of the water table below t
Somewhere I have a paper describing something like that. I recall an antenna at ground level or actually a little buried, and its effective height was related to the depth of the water table below th