The R7 Project is a Field Day antenna I
built in 2006 (Field Day).
I took an R7 Black Box (that I had
bought at a flea market) and I added 4
radials (aluminum tubing) and I used a
long aluminum tubing radiating
element resonant on 20 meters.
It was a monoband version of the R7.
Seemed to work quite well. It was very
broadbanded.
Here is the LINK to my R7 pages on
my new web site (hamelectronics
magazine (dot com)