Ham Radio Help Desk

To function as intended, the J-Pole antenna needs electrical isolation from its mount. Here’s why and in technicolor no less.

K3CDQ asks: I have an old computer with lots of 2002, 3 and 4 software on it. I have thirty years of ham contacts logged in a data base that I worked up using Microsoft Works 2004. I now have a new computer with all 2010 and 2011 software on it and running XP. I [...]

Ground Rods… so easy a pre-teen can do it. Presented is a method learned from other hams on how to install a ground rod with minimal or no hammering. Using a watering can, even children can sink an 8 foot ground rod into the ground. All it takes is water and time.

My G3TXQ Hexbeam gets a new metal backbone to accommodate a VHF beam antenna. A byproduct is a much stronger antenna assembly.

Real measured data reveal the UHF (PL259 and SO239) connectors have real limitations.

Lab tests show post WW2 connector designs perform exceptionally well up to 500 MHz. The SMA, BNC, TNC and N connectors are great.

The PL-259 (and SO-239) are pitted against more recent connectors. This is the list of contenders plus a description of the test setup.

The PL259/SO239 (aka UHF) connectors have harsh critics and religious defenders. Questionable measurement techniques complicate matters. Let’s clear things up.

Hello everyone, I have been getting back into radio after a 16 year ‘sabatical’, and I could really use your help, as last night’s events have kept me awake all night………. I bought a Hallicrafters Super Skyrider SX-28AU (the U is the model with the optional 230V power supply) 2 weeks ago. I paid Top [...]

Virginia is now represented in the popular Summits on the Air (SOTA) program.