On Feb 17, 12:41 pm, "James" wrote:
Hello ! I just bought a 2m Hamstick antenna at the Orlando Hamfest, the
model 9100. I would like to trim this antenna for 156 mhz, for marine
use on my boat. Can someone tell me "about" how much I should shorten the
whip to achieve this ? Remember, this is the 5/8 wave antenna with a loaded
base.

Thank you very much !!

73 de Jim K4PYT

5/8 wave on 156 MHz is 47.3 inches (rounding). Seems like whipping up
one of the classic SO-239 connector ground plane antennas out of some
brazing rods would be a super cheap way to do it, then you don't have
to worry about counterpoise and you haven't taken more than about $10
out of the antenna fund.

Jon
KC2PNF