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SPECIFICATIONS
Model Number ........................................ 440-18
Frequency Range ................................... 420 TO 453 MHz
Gain ........................................................ 14.5 dBd
Front to Back .......................................... 23 dB
VSWR ..................................................... 1.2:1 Typical
Beamwidth .............................................. E=27o, H=32o
Recommended Stacking Distance ......... 46 Inches
Input Connector ...................................... 'N' Female
Power Handling....................................... 1 KW
Wind Area............................................... .875 SQ. FT.
Boom Length .......................................... 136 Inches
Mast Requirement .................................. 1-1/2 TO 2-1/8
Wind Survival.......................................... 100 MPH
Weight / Shipping Weight ...................... 5 Lbs / 7 Lbs

FEATURES
    The 440-18 is a computer optimized broadband yagi featuring an excellent pattern and good gain across
its bandwidth. It can be mounted vertically or horizontally and is ideal for stacking two or more for additional
gain. Its light weight yet sturdy construction keep the cost low and the performance high. Use it for ATV,
OSCAR, FM, LONG HAUL TROPO, ETC. We guarantee you will be impressed.
    The heart of the 440-18 is a unique Driven Element Module with superior weather resistance and power
handling abilities. All connectors are O-ring sealed to the CNC machined block and internal connections are
sealed in a space-age silicone gel with a dielectric strength nearly 4 times greater than air. The Balun coax
connectors are triple O-ring sealed. Other key mechanical and electrical parts are CNC machined from
6061-T6 aluminum and all hardware except U-bolts is stainless steel.
    The 440-18 offers you uncompromising performance, enduring mechanical construction, and long term
electrical integrity. Where else but M2.

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