M2 - 440-21-ATV - 21 ELEMENTS OPERTAING FROM 420 TO 440 MHz - EXCELLENT FOR ATV - HORIZONTAL OR VERTICAL POLARIZATION

M2 Enterprises, a company created by Mike Staal, ex-designer and co-founder of KLM, produces antennas of the highest quality.
The models have all been designed and analyzed on the computer using the most sophisticated optimization techniques, and made with precision machinery using the highest quality materials: 6063-T832 aluminum reinforced, thick aluminum or steel blocks, screws always in stainless steel, power points always perfectly sealed and waterproofed and are consequently 
very highly resistant to wind and weather.
The cost of such antennas is adequate to the quality of the product, which is definitely an investment destined to last many years without mechanical problems and with the maximum electrical efficiency obtainable.

FEATURES
The 440-21ATV is the ultimate ATV antenna: computer and range optimized for very high gain and excellent pattern across its bandwidth. It can be mounted vertically or horizontally and is also ideal ideal for OSCAR, FM, LONG HAUL TROPO, ETC. Its lightweight, yet sturdy, construction keeps the wind area low without compromising the 100 MPH wind survival rating. We guarantee you will be impressed.
The heart of the 440-21ATV is a unique Driven Element Module with superior weather resistance and power handling abilities. The module is CNC machined from a solid aluminum block, features O-ring sealed connectors and internal connections embedded in a special silicone gel that seals out weather and improves power handling.
The Balun connectors are triple-sealed to the coax. Other key mechanical and electrical parts are CNC machined from 6061-T6 aluminum and all hardware except U-bolts is stainless steel.
The 440-21ATV offers you uncompromising performance, enduring mechanical construction, and long term electrical integrity.

SPECIFICATIONS
Model Number ........................ 440-21ATV
Frequency Range ................... 420 TO 440 MHz
Gain ........................................ 15.9 dBd / 18.1 dBi
Front to Back .......................... 23 dB
VSWR..................................... 1.2:1 Typical
Beamwidth .............................. E=22°, H=24°
Stacking Distance ................... E=61", H=59"
Input Connector ...................... 'N' Female
Power Handling....................... 1 KW
Wind Area............................... 1.25 sq ft.
Boom Length / Dia. ................. 14' 6" / 1" (4,42 m.)
Mast Size ................................ 2" (5 cm.)
Wind Survival.......................... 100 MPH / 160 km/h
Weight / Shipping Weight ....... 4.6 Lbs / 7 Lbs  - 2,13 kg. / 3,17 kg.