[TowerTalk] 80 meter inverted V -- CW and SSB

[W7ZZ]

N6RY and I designed, built and tested a truly broadband 80 meter dipole 
that offers SWR of 1.5:1 or better across 99% of the entire band, with 
the 1% being at 1.6:1 and at the absolute top of the band.  We wrote an 
article on the antenna that had been accepted by CQ Magazine for 
publication but got "preempted" when QST, by sheer coincidence, ran an 
article on a very similar design while the CQ editing process was under way.

If anyone would like a copy of the article and all its graphs, photos, 
etc, let me know at w7zz at arrl.net and I'll set up a Dropbox file and 
send you a link to it. Not only does it go over the design of the 
antenna, it covers how to build it so that it will last, how to match 
the antenna using a simple series match made from 75 ohm coax and how to 
keep the feedline from radiating using a choke (including the design of 
the choke). I can also provide the actual EZNEC files for versions of 
this antenna on all of the low bands, 160-10m.  These models will not 
run on the free version of EZNEC that comes with the ARRL Antenna Bookas 
the models have too many "segments." They require the full version (but 
not professional version) of EZNEC 4.0 or 5.0.

This antenna has been up and in operation at my station for a couple 
years nowat 80 feet. It is a fantastic performer. The EZNEC files model 
a refined version at 80' (mine was an early beta version but it works so 
well I never bothered to build our final version), 60' and at 35'. The 
dimensions of the antenna and the series match change at each height.  I 
also have a 40m version up with even better results in terms of both SWR 
and performance. It is at about 80 feet also (with the models at 35, 60 
and 80feet).  I have had up a 20m version which also performed as 
predicted by EZNEC.  We designed a 160 versionthat, while much better 
than a regular dipole, isn't anywhere near as good as the 80-10m versions.

Let me know if you're interested. 73, W7ZZ