[Elecraft] Trans World Antenna

[David Yarnes]

Ron and all--

Actually, this type of antenna might possibly work better than a Buddipole 
in many situations.  A Buddipole can be set up as a vertical dipole like 
this, but the TW-2020 is also end loaded somewhat, so possibly a bit more 
efficient.  I can say that for sure though, as I've never really tried this 
exact antenna.  In any event, I feel even stronger that it would outperform 
a Buddipole that was set up in a horizontal configuration.

However, I do think vertical dipoles have some merit.  I have a Force12 
vertical dipole, and it works pretty well.  I use it on  40 meters only, 
although it can be re-adjusted for other bands.  That's a pain in the butt 
though, so I leave it set for just the one band.  Mine might work better 
than the Trans World on 20 meters  because it is bigger, and thus relies 
less on inductance to make up the difference.  Still, it has a fairly small 
footprint, and is easy to assemble/dis-assemble.  The big benefit is no 
radials as it is a balanced antenna.  Just getting it up off the ground a 
bit seems to really help.

My biggest problem with antennas like this is the cost.  They certainly 
aren't cheap if you buy them commerically.  Most of these could be 
homebrewed at a substantial savings, and probably are not that difficult to 
duplicate.  Alternatively, maybe you can find one of this type 2nd hand, 
which is what I did.

Anyway, I'd check out the QST reviews, and maybe even model them if you have 
that capability.

Dave W7AQK





-----------------------------
AC7AC Said:
Phil, there is no "magic" or anything new in antenna design in nearly a
century.

That's simply a short, loaded radiator, either a doublet (if fed near the
center) or a monopole.

It will work nearly as well as the "Buddi Pole" that Elecraft (and others)
sell, which means it will make a lot of contacts under the right conditions.


Or you can create your own version by throwing up a low doublet and feeding
it through the KAT3 or KAT3 tuners.

What you are paying for in these antennas is convenience, not performance.

73,

Ron AC7AC