M2 6M HO LOOP Assembly Manual

SPECIFICATIONS:
Model ......................................... 6M HO LOOP
Frequency Range ....................... 50 To 50.3 MHz
Gain, Typical @ 11 ft. ................. 6.3 dBi @ 25 deg.
Gain, 2 Stack @ 40 & 52 ft. ....... 10.3 dBi @ 6 deg.
Polarity ...................................... Horizontal
Impedance ................................. 50 Ohms, Unbalanced
Power Handling. ......................... 800W, 1.5 kW stacked
FEATURES:
Our 6M HO Loop is the result of a continued development of reduced size, omni-directional horizontally polarized loop-style
antennas. This new design is easy to match in any situation. Performance is better than anything in its class and its design makes
it immune to nearly all weather conditions. Power handling is often a problem with small loops but this design can handle 800 watts
with ease and a stacked pair can easily handle 1.5 kW. The patterns contained in the manual will give you a good idea of how well
the 6M HO Loop will perform in your system.
As with all horizontally polarized antennas, performance is usually tied to height above ground but even at ten feet the HO Loop
yields an amazing 5.9 dBi at an angle of 27 degrees. Mounted on a vehicle at eleven feet above ground, the gain jumps to 6.3 dBi at
25 degrees. Stacked for base or portable use, twelve foot spacing is optimum. Note that the gain jumps over 3 dB for a stacked pair
of these unique antennas, yielding as much as 10.3 dBi!
Physically the HO Loop is 29.5 inches square with a wind area of just 0.1 square foot. The 3/8" diameter tubing keeps it light but
plenty rugged for mobile operation. Our precision machined aluminum feed block is sealed and potted with silicon gel for extreme
reliability and low loss. The feed block slides on the tubes for frequency adjustment and the shorting bar adjusts for a perfect match
into 50 ohm feedline. Two HO Loops can be stacked using a coaxial power divider.
Optional items include our line of lightweight aluminum mobile masts and our "Big-Foot" heavy duty magnetic base. We also
offer coaxial power dividers and phasing cables for stacking HO Loops.
M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
M2 Antenna Systems, Inc.
Model No: 6M HO LOOP
*Subtract 2.14 from dBi for dBd
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2015 M2 Antenna Systems Incorporated
Feed Connector .......................... SO-239
Mounting ..................................... 3/8-24 or 1-1/4"-2"
Vehicle Mounting Height ............ 30" or more
Stacking Distance ...................... 9ft to 12ft
Maximum Element Length .......... 29-1/2"
Wind Area ................................... 0.1 sq ft.
Weight ........................................ 2 lbs.
08/29/12
Rev.03