[TowerTalk] Looking for a Short Rotatable Dipole or...

Kelly Taylor ve4xt at mymts.net
Thu Apr 28 10:15:07 EDT 2016


Hi Eric,

The Cushcraft D40 is $399, but it's also MFJ. And, it's full size. 

Another idea would be a Hamstick dipole, but I'm not sure the performance. 

You could also get from Spiderbeam a set of quad spreaders, wind part as a helix and then fold the ends of the wire back up to the mast to complete the last bit of loading and act as a truss. You'd have to select the end-loading wire accordingly, of course. 

73, kelly, ve4xt 

Sent from my iPhone

> On Apr 28, 2016, at 9:00 AM, Joe Subich, W4TV <lists at subich.com> wrote:
> 
> 
> Looking at DX Engineering's "Hot Rodz" capacity hats and Hustler mobile
> coils, it would seem that one could design a rotatable dipole of any
> arbitrary length by selecting the appropriate capacity hat and coil.
> 
> Obviously, one would need access to the tools to create an adapter to
> attach the loading coils to the ends of the dipole elements.  However,
> an aluminum dipole of roughly 30' (starting  1.5" diameter and tapering
> to 1") with end loading should be reasonable.  A 36 to 40 foot dipole
> would not be out of the question.
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
>> On 4/27/2016 11:25 PM, Eric Rosenberg wrote:
>> A nice antenna, but $700+ is *way* above my budget
>> 
>> 73, Eric W3DQ
>> 
>>> On 4/27/2016 4:47 PM, Charlie at thegallos.com wrote:
>>> I have a d140 mounted above my c3ss. Don't know the current model
>>> 
>>> 73 de KG2V
>>> 
>>>> On Apr 27, 2016, at 2:31 PM, Eric Rosenberg
>>>> <ericrosenberg.dc at gmail.com> wrote:
>>>> 
>>>> My urban lot is small enough that I don't have much of a 40m antenna
>>>> worth mentioning.
>>>> 
>>>> I''m looking for a 40m rotatable dipole (preferably a F12
>>>> EF-140S) to add to the C3-SS on my roof. The "S"is shortened
>>>> version. Sadly, nothing larger will fit.
>>>> 
>>>> Any leads (or suggestions for alternatives) are appreciated.
>>>> 
>>>> Thanks and 73,
>>>> 
>>>> Eric W3DQ
>>>> Washington, DC
>>>> _______________________________________________
> 
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