In article ,
Terry wrote:
About 30 years ago, "73", a ham radio magazine, ran sevveral articles
on
a DDRD or DRRD, or something very similar antenna. The antenna was
amde from 1.5" muffler pipe formed into a circle with a piece notched
out. The antenna
had a farily narrow BW, so a different on was required for each ham
band.
They could be nested one loop inside the other. The follwup letters
rated
the antenna from very good to bad. I suspect I have the name wrong
because
a Google came up with nothing.
Anyone remember the real name of this antenna?


Close. DDRR. It's in the ARRL Antenna Book 1988 edition in the
"Antennas for Limited Space". There's a reference to the July 1972 QST.
They need a great ground, though. Something that the tuned "Hart" loops
like those sold by AEA and (I gather) MFJ don't need. (They're also in
that book in the "Loop Antenna"'s chapter).

Mark Zenier Washington State resident