Model C-31XR

The Gold Standard of Tribanders

3-bands: 20, 15 and 10 meters

Instand Band Switching, CW / SSB

Optimum forward gain & F/B all the time

1, 2, or 3 feedlines - your choice

5KW+ power capability

Plug & Play Assembly

Simple and Reliable

Open space at the center for side-mounting

100 mph standard, 120 optional

The high performance of the C-31XR is now legendary. It stands out as the leader and trend setter for triband Yagis. It is truly 3 monoband Yagis sharing a common boom with Force 12 overlay design. Before getting into the actual antenna, it might be good to address a common question these days. At the last three forums where I've been a speaker, I've been asked about the motorized Yagis in the market and how they compare. My surprise was that people in the audience answered the question for me - they don't compare. Some of the issues brought out by the audience are: a) the motorized antennas are much more expensive and they have the potential of a motor failure in the air (everything electrical has a mean time between failure); changing element lengths cannot make up for fixed element position; the gain and F/B ratios claimed cannot be done at the same time; if you do emergency work, you cannot afford to have something fail in the antenna (like a motor) - you are off the air; the power limitation gives a clue that there is loss in the design and system; and, you wait to change bands.

Taking 3 seconds to change bands wastes a lot of time when chasing DX and in contests (it all adds up). You can easily make 400 band changes in a weekend DX pile-up or contest to listen and call stations on other bands. 400 changes x 3 seconds = 1200 seconds -- a full 20 minutes you are off the air. This does not include extra time being sure the band change is complete so you don't trip off your amplifier or damage the antenna. If you are really active, 800 band changes is not unreasonable and that is at least 40 minutes lost.

Dollar for dollar, fixed antennas like the C-31XR are the best.

The advent of the Force 12 C-3 in 1993 changed the landscape of amateur antennas. For the first time, the C-3 provided an efficient, simplified solution using a multi-monoband approach, void of the losses associated with traps and the complexities of log periodic designs. This Force 12 design was a true breakthrough in antenna design and the performance improvement over conventional "tri-banders" was so good that the C-3 became an instant success. To avoid confusion with trapped antennas, the C-3 was properly labeled a "multi-monobander", because it utilized multiple monoband Yagis on a single boom. The C-3 covered the popular 20-15-10 meter bands and also offered service on 17 and 12 meters using a tuner, which was another "first." Further developments led to additional C-series antennas and then to the powerful XR- series, which are dedicated to the 20, 15 and 10 meter bands. The C-31XR is the middle size of the series with a 31' boom. There is also the 19' boom C-19XR and the highest performance tribander in the world, the 49' boom C-49XR.

The C-31XR uses proven technology for plug & play assembly and long life. Much time was spent developing the versatile feed system. Most customers prefer a single feed line; however, contestors and DXers often prefer to be on more than one band at a time. The C-31XR can be fed with 1 feedline, 2 feedlines, or 3 (one for each band). You can select as you want and can also change later to something else as you desire!

Buy the C-31XR Now!

Force 12, Inc.

Order Line 1 800 Number Is Coming Soon

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