GWEN Patch
Ground Wave Emergency Network - EmComm
"100% Reliable Emergency Communications to 100 Kilometres with 100 Watts or Less in all Conditions"
- Amateur Radio - 80 Metre Band - Vertical Polarization - Omni Directional - Morse Code - Sideband - Digital -
GWEN Patch
GWEN - EmComm Antenna Olympics

Frontenac Ground Wave Emergency Network

Antenna Evaluation Criteria

1. Background: For successful ground wave propagation it is essential that the antenna be as efficient as possible. Ideally it would be one quarter wavelength long, mounted over good soil and with a large number of radials. This is often impractical, especially for EmComm deployments. This document outlines some practical criteria for evaluating deployable antennae with the goal of determining best practices and sharing those amongst EmComm groups.

2. Purpose: This document specifies the evaluation criteria for ground-wave antennae used for EmComm deployments.

3. Procedure: As a field training exercise, EmComm members will gather in one large area and erect their ground wave antennae. This activity will be evaluated by a team of judges using the criteria shown below. Of critical importance will be the efficiency of the antennae. This will be measured by applying a known amount of power (e.g. 5 Watts) to the antennae and have the strength of those signals measured by a distant station (e.g. HF mobile with 8 ft whip at 5 to 10 km).

4. Criteria:

5. Recognition. All participants in this exercise will receive a certificate. Bragging rights will go to the operators with the best three antennas.

First & third Monday
of month at 1930 hrs.
3607 kHz LSB +/- QRM.
Second & fourth Monday
of month at 1930 hrs.
3607 kHz LSB +/- QRM.
Next GWEN S.E.T.
Simulated Emergency
Test to be announced.
Emergency Preparedness Week
ARRL Field Day 2016
GWEN S.E.T. Port Hope August 4th, 2010