M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2015 M2 Antenna Systems Incorporated
06/25/15
Rev.03
Model ......................................... 2M9SSB/FM
Frequency Range (2M9SSB) ..... 144 To 146 MHz
Frequency Range (2M9FM) ....... 145 To 148 MHz
*
Gain .......................................... 14.1 dBi
Front to back .............................. 20 dB Typical
Beamwidth ............................... E=35° H=38°
Feed type ................................... “T” Match
Feed Impedance. ....................... 50 Ohms Unbalanced
Maximum VSWR ........................ 1.2:1 Typical
Input Connector .......................... “N” Female
Power Handling .......................... 2.5 kW
Boom Length / Dia ...................... 14’ 6” / 1” To 3/4”
Maximum Element Length .......... 40-5/8”
Turning Radius: .......................... 8’
Stacking Distance ....................... 9’ 6” High & 10’ Wide
Mast Size .................................... 1-1/2” to 2” Nom.
Wind area / Survival ................... 1.2 Sq. Ft. / 100MPH
Weight / Ship Wt. ........................ 5 Lbs. / 7 Lbs.
M2 Antenna Systems, Inc.
Model No: 2M9SSB/FM
FEATURES:
Up to the minute design using a state-of-the-art computer optimization program to deliver
the most gain for boom length of any antenna on the
market.
Each model’s performance is optimized for a specific mode and frequency range, with no compromises to achieve unneeded band-
width: the 2M9SSB covers 144-146 MHz and the 2M9FM covers 145-148 MHz. Where do you want to make yourself heard?
Both models are ideal building blocks for a small turning radius, high-gain stacked array. Two horizontally polarized, vertically stacked
2M9SSB’s yield the same gain (14.8 dBd) as M
2
’s 33 ft 2M5WL, but with about 1/2 the turning radius (8’ - great for QTH’s that won’t permit a long boom
Yagi). The 2M9FM can be stacked on a cross boom for the same gain increases, and the turning radius is still a very manageable 10 ft.
The heart of these antennas is a driven element module originally designed for maritime ATS satellite service. All connectors are O-ring
sealed to the CNC machined block. Internal connections are sealed with a space-age silicone gel with nearly 4 times the dielectric strength of air. The
balun connectors are triple sealed on the coax and nut-sealed at the block connectors. The type “N” feed connector uses a gold-plated, beryllium copper
center pin.
Elements are 6061-T6 3/16” solid rod with UV stabilized polyethylene Button insulators and stainless steel keepers. Thousands of these type ele-
ments are in amateur and commercial service with NO failures! Booms are constructed of 6063-T832 aluminum alloy tubing with close-tolerance
swaged joints. Other key electrical and mechanical components are CNC machined for accuracy and durability. All hardware is stainless steel except
the U-bolts. For uncompromising performance and long term electrical / mechanical integrity, the 2M9SSB and 2M9FM are unmatched.
SPECIFICATIONS:
*Subtract 2.14 from dBi for dBd
Summary of Contents for 2M9SSB/FM
Page 2: ...2M9SSB DIMENSION SHEET ...
Page 3: ...2M9FM DIMENSION SHEET ...
