New MAGNUM 340N

The 40 mtr Yagi you have been looking for!

Force 12, Inc. continues to listen to customers and has developed the new, longer "N" element for 40 meter dipoles and Yagis. The tremendous features are:

• Elements are approximately 81-85% of full size, which means the antenna is almost identical to full size performance (within 0.1 or 0.2dB, depending on the model).
• This antenna can be mounted within 7' of a Force 12 monobander or multi-monobander (e.g. C-3, C-31XR, 5BA, etc.) without affecting it; same for the 2 element Yagi and dipole.
• The high efficiency linear loading is pre-formed, solid rod (just like the C-3SS) and runs outward towards the tips, eliminating any potential problems at the center spreader.
• Tuning is done by adjusting the tip length and the tips are pre-set and predictable (6" per tip = 100 kHz).
• Individual element frequencies can be verified before installation by testing at 15-20', made possible by removeable element mounts, including the driver.
• The elements can be set and then mounted with the boom vertically on the tower.
• Elements are rated for 100mph (28 pounds each, 12' of 1.875" at center) and, for additional strength and stability, trussed with Spectra, braided Kevlar line.
• Performance bandwidth (gain, F/B and VSWR)is excellent, covering the entire band at K6KM's QTH with less than 2:1 on his FT-1000MP (300' of LMR-400 feedline).

• Windload is 10.5 sqft; weight is approximately 115 pounds; mast torque at 70 mph is <300 inch-pounds; turning radius is 32'8" and longest element is 58' (reflector).
• MAGNUM 340N shown installed 7.5' below a Force 12 C-3 tribander.

• This new 40 element can also be used as a single dipole, the MAGNUM 140N.
• Single MAGNUM 140N dipole element (no truss) installed 5' below EF-315 3 element 15 mtr Yagi at Field Day, 1999 on a Force 12 LPT-1242 42' Low Profile Tower.

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