wrote in message
...
I would appreciate some recommendations for a 144/420 MHz pole antenna to
be mounted in my attic. I
would like it to have radials so I don't have to put a metal plate under
it.

Thank you for your suggestions.

2m J-pole antenna is my recommendation. It delivers a reasonable match on
70cm, too. One drawback is the elevation pattern at 70cm -- the major lobes
are not at the horizon and much of the power is wasted if you're working
terrestrial. The antenna is about 57 inches tall and, as an end-fed dipole,
requires no ground plane. Google j-pole ham build and take your pick from
the many articles.

Of course you could make two j-poles, one for 2m and one for 70cm. They can
even be "stacked" all in one piece with separate feedlines. Tricky. Saw
one article years ago but can't find now.

A single structure dual band antenna is here in the ARRL Members Only
Section:
http://www2.arrl.org/members-only/ti...df/0010050.pdf

Sal