I'm in a one story apartment. My window is right at the site where my antenna
is located. The antenna is an hv8 (think its a Commet) only at about 15ft on a
pole just above the roof line. That's all they will let me put up. Its one of
thos all band things that covers 80m through 70cm. It essentially looks like a
double decker ground plain except that the spokes are parallel to the ground.
There's no reason that I couldn't put a second ground rod in near my antenna
ground. I just hadn't done it because my understanding is that having the rf
and antenna grounds that close together was undesirable.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html