Archive for May 2006

Outbacker antenna to the outback

Outbacker antenna

Later this year I’ll be heading west into the Australian outback (including the Birdsville Track) for what will be about a 5000 km (3100 mile) round trip. It’s an opportunity to take my ham-radio equipment along for fun and safety (and see what I might be able to do on 2m SSB (Aircraft Enhanced mode) and digital modes). For HF I have a Terlin Outbacker mobile antenna but it’s not been used much to date. Last weekend I attached it to the bull-bar on my Hi-Lux truck and gave it a test.

I don’t have a permanent mobile installation so the setup was, of necessity, rather primitive. I used an Icom IC-706 MkIIG, and an MFJ desktop antenna tuner sitting on the passenger seat to feed the antenna. I don’t have any earth strap installed to the vehicle chassis yet, so was a bit worried about the effects that would have. The vehicle has a diesel engine so that probably helps to keep the noise level down.

With everything plugged in, and the engine running, the S-meter sat with zero noise level so I was happy. I made a quick contact on 40m just to get a signal report. I worked VK5ZKT/P near Adelaide ( a distance over well over 1000km) so I was happy with that result too.

Over the coming months I’ll set about upgrading the setup to give a slightly more permanent mobile installation.

[Ref: Outbacker antenna info can be found here].