ARRL

Forum Home - Rules - Help - Login - Forgot Password
Members can access, post and reply to the forums below. Before you do, please first read the RULES.

2 meter antenna

Jul 28th 2013, 01:27

K4BZZ

Joined: May 18th 2006, 13:36
Total Topics: 0
Total Posts: 0
I would like to put a full wave 2 meter whip on my p/u but not sure how to match it to 50 ohms. Any help out there?
Jul 28th 2013, 02:16

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0

A L network, a series inductor between the coax and the whip and a shunt capacitor from the whip to ground can be used to match the high impedance load efficiently. But, a long whip like that sends a lot of energy up into the sky at a relatively high radiation angles, so it is rarely useful for amateur purposes. Even for satellite work, a low angle vertical typically is more useful than one with high angles of radiation, as most of the time a satellite is near the horizon.

While such an antenna might be useful for talking to someone on a tall mountain from a valley, in practice those paths tend to be so good that just about anything works--there is no need to tilt the pattern skyward.

Zack Lau W1VT
ARRL Senior Lab Engineer

Back to Top