[Lowfer] Antenna design idea question

[Stan, W1LE]

Hello Mike,

I suspect lotsa folks have considered it and a few have constructed one 
with unpublished results.
Some variations have been documented, base loading, center loading and 
top loading.

Depending on your working familiarity with NEC antenna modeling, 
consider modeling it first.
Or just make one and evaluate it.

You did not mention what frequency you are planning to use.   136, 160, 
190, 500 KHz ?

For 136 KHz a wavelength is about 7200', so I hope you have a ready 
source of wire.

By heavy wall PVC do you mean schedule 40 or sched 80 ?

Sounds like an interesting venture.

Thinking out loud:
Glue or bolt the sections together ?
What size wire with UV proof insulation ?
How much of an overlap of the different sections when stacking and 
gluing/bolting ?  1' ?
I assume it will be a TX antenna.
You will need another antenna to compare it to.

Stan, W1LE     FN41sr     Cape Cod



Michael Lodico wrote:
> Good morning all you Lowfer's out there.
>
> I am trying to plan for an antenna for this winter and came up with an 
> idea based upon what a ham did for a shortened 80 meter vertical.  The 
> plan is as follows:  you take a 1/2 wavelength of wire and wind it on a 
> rod like a solenoid so that it is shortened considerably.  He claims 
> that it performs quite well.
>
> What I have in mind is to take 4 lengths of PVC heavy wall pipe, 4", 3", 
> 2" and 1 1/2", and wind a 1/2 wavelength of wire over the 40' length.  I 
> would do this in 10' lengths and dope the windings in place to hold them 
> and then connect them together at each joint.  At the top I would add a 
> 10' diameter capacitor hat.  By using the different diameters this gives 
> me  anchor points for  Dacron guys.
>
> My question is has anybody tried this?  Is it a feasible design idea 
> worth pursuing?  Any comments or feedback would be greatly appreciated.
>
> 73,
> Mike
> K1EG
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