Ham Radio . me

Basic tests of the LNR Precision EF-10/20/40 multi-band portable HF EFHW antenna including S11, SWR and a bandwidth check of the match box.

The background and details of the LNR (Par Electronics) EF-10/20/40 end fed half-wave multi-band portable HF antenna. Come see what’s inside the mysterious “black box.”

A reinforced Subaru through-hole NMO installation using silver epoxy and metal plate to accommodate the 62 inch Diamond SG7900A dual-band mobile antenna.

Fun times await participants in the 2012 Virginia QSO Party. This post links to Official Rules, Information and Past Statistics.

The Northern Virginia team of Ham Radio operators and companion hikers manned Hawksbill Mountain for the 2011 Appalachian Trail Golden Packet event. Gear included a Kenwood D710 with Green Light Lab GPS, 2m Collinear J-Pole and a 70cm collinear J-Pole.

Return Loss and SWR measurements of a permanent 2m whip installation mid-roof of a Ford Taurus. The effect of doors is shown.

Highlights from the installation of a 3/8 inch NMO permanent mount into a 1998 Ford Taurus rooftop.

To function as intended, the J-Pole antenna needs RF 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.