[Lowfer] Longwave Antenna Question

[Mike WE0H]

Does anyone have Bill's articles or know where they may be online? I 
can't find where I put them around here.

Thanks much,
Mike
WE0H


John Andrews wrote:
> Andy,
>
> A vertical loop, supported either by towers or trees, works fairly 
> well. That's all that I have used for either TAG or the various LF/MF 
> experimental operations. My site doesn't lend itself well to "Marconi" 
> or similar antennas -- no towers, and the available trees are along 
> the back line of the property. The top wire and downlead would be 
> buried in the trees.
>
> A horizontal loop will help earthworms over a large area to survive a 
> really cold winter. Given the part of the country you live in, this 
> wouldn't be much of a service! <g> Seriously, the idea has been tried, 
> and it doesn't work, as even with the horrible ground conductivity up 
> here in New England, the signal is effectively short-circuited in the 
> ground. You're welcome to try, but you will be very discouraged.
>
> The important things with a vertical loop are to maximize the area, 
> and minimize long, low runs parallel to the ground. That would tend to 
> argue against the triangular configuration with the high point in the 
> middle, but anything is better than no antenna at all. The long, low 
> concept will produce a high loss resistance which limits your antenna 
> current.
>
> If you haven't done so already, take a look through Bill Ashlock's 
> transmit loop articles. The links I have to them have gone stale, but 
> maybe someone else can provide the correct ones.
>
> John A.