Suitcase HF Mobile Station

The goal is to pack a complete HF station in an 18" tool type suitcase (available at hardware stores). This is the same case I put the 17" Pneumatic Antenna Launcher in. I also have an FT897 in one, and a Buddipole system in another. These cases are inexpensive and convenient. This type of system is useful for travel or Emcomm, or if you want HF mobile but don't want to leave all that equipment in one vehicle.

So how to fit an HF mobile system into a Tool Case?

Start with a 3 or 4 magnet H-type antenna mount. I cannot use a 3 magnet mount on my truck due to the roof corrugations, but the 4 magnet mount spans the ribs and works fine.

Ham stick type antennas might be used, but won't fit in the case, and I don't like to stop to change bands. The only frequency agile mobile HF antenna I have found that will fit in the case (barely) is a short Screwdriver type. The one I have is the High Sierra, but the small Tarheel will probably work as well. The available dimension in the case is about 17 inches.

The High Sierra Sidekick, with an Iron Horse quick disconnect, just barely fits directly across the case. I will look into shorter quick disconnects later to make a bit more room. The disconnect is not required and then the coil would be short enough, but a small wrench should then be included to snug the whip.

The whip for the High Sierra is gently bent to fit in the case around the outer perimeter. It fits easily. A segmented screw-together type whip would also work, or a tent-pole folding type (like Buddipole.com makes, but their sections are too long).

The Icom 706, microphone, power cables, and a Turbo Tuner complete the kit. This kit requires vehicle or other external power. I often use a 35AH or 49AH SLA battery and have no direct connection to the vehicle. Connecting to the vehicle via the cigarette lighter works if reduced power is used. Running full power from the cigarette lighter usually produces too much voltage drop.

I prefer to use an automatic tuner to adjust the antenna for convenience and driving safety. I have worked with the W4RT Boss II and the Turbo Tuner. I have had some minor problems with the Boss unit. Testing with the Turbo Tuner is underway. Check eHam.net for reviews on these and other units.

A balun at the antenna is a good idea to reduce RF noise and problems.

I use bubble wrap to pad and protect the parts in the case. Everything fits without much trouble and it only takes a few minutes to set up an HF mobile station in a vehicle.

-- AlanB, WB6ZQZ

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CategoryHamRadio