Author Archives: John Heartney

OVH Members Participate in Emergency Exercise

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On November 18,  the city of Manassas and the city of Manassas Park held a joint emergency exercise for their combined Community Emergency Response Teams (CERT).   The exercise was held at Osborne High School and involved finding victims in blacked-out rooms and the triaging and transporting the victims. The purpose of the exercise was to use the skills learned in the class room and apply them in a simulated exercise.   The teams checked for bleeding , airway obstruction and shock.   One of the victims was under a table and had a knife protruding from her legs.  Victims were sorted by severity and transported to the medical treatment area. The OVH members who had just received the training and were part of the teams were Ray , KM4EKR,  Sandy, KM4JUS and John, KG4NXT.   All these members were trained by Greg, KM4CCG… Read more »

A Visit by the PIG

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The OVH Pig graced us with her presence at the November OVH Meeting.   She will be part of the OVH float at the Dec 2, 2017 Manassas Christmas Parade.  To volunteer for the parade,  email N4OGR@arrl.net or K4GVT@comcast.net   The OVH Pig in real life is Rosalie Fuller who purchased the outfit at her personal expense.  Thanks Rosalie.

The Making of a full size 160 Horizontal Loop

Jeff Fischer, WB4TT, recently decided to add a 520 foot horizontal loop to his antenna farm. Jeff wanted this to be a homebrew antenna and not an off the shelf antenna. He made his own 1:1 balun rated at a kilowatt out of 12 gauge magnet wire over which he applied a 3M coating for extra insulation. With the help of neighbor, Gil Thompson , KM4OZH, he created  antenna mount points for the trees from hardware store hardware. These mount points are designed to flex with the trees to avoid snapping the antenna wire through metal fatigue. The mounts consists of an 8 inch eye bolt in the tree connected to two pulleys. The pulley connected to the eye bolt is connected to Dacron rope that is a loop to the ground to aid adjustment. This first pulley is connected… Read more »