[Elecraft] T1 Antenna Considerations

[Thom R LaCosta]

On Sat, 6 May 2006, Steve wrote:

> Thom,
> Sorry for the delay in reply.  I'm catching up on a bunch of email from
> several email lists...
>
> The author advocates using a 1/4 wave (less 5%) as a counterpoise for this
> antenna.
>
> I agree:  this does sound a lot like the W3EDP antenna, which is described
> in "Practical Wire Antennas", pg 33 (among other places).  In this
> reference, the W3EDP antenna is described as an 85' radiator and 17'
> counterpoise.  Connect both wires at the back of your tuner.

I use a w3edp radiatior length with 1/4 counterpoises for each band....and have 
been told my the purists that my adding the counterpoises, it is no longer a 
w3edp.

Seems to work...so now I will try the other lengths and see how that works, 
since I have lost the end support for the longer wire due to development in the 
area.

thanks

>>>> In the article "Taming the End-Fed Antenna" ("The Antenna File",
>>>> RGSB, pg
>>>> 118) he looked at this issue by plotting various 1/2 wave
>> lengths and
>>>> proposed the following end-fed wire lengths:
>>>> - 26.5m (86.9 ft) for 160 - 10M use
>>>> - 15m (49.2 ft) for 80, 40, 20, 17, 15, 12, 10M use
>>>> - 10m (32.8 ft) for 80, 40, 30, 17, 15, 12, 10M use
>>>>

Thom

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