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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 Incoporated 

05/26/15 

Rev.01 

Model  ......................................... 2M4 
Frequency Range ....................... 144 To 148 MHz 

*

Gain .......................................... 9.6 dBi 

Front to back .............................. 20 dB Typical 
Beamwidth   ............................... E=54° H=74° 
Feed type ................................... “T” Match 
Feed Impedance. ....................... 50 Ohms Unbalanced

 

Maximum VSWR ........................ 1.5:1 
Input Connector .......................... “N” Female 

Power Handling .......................... 2.5 kW 
Boom Length / Dia ...................... 48” / 1” 
Maximum Element Length .......... 40-1/2” 
Turning Radius: .......................... 55” 
Stacking Distance ....................... 66” High & 80” Wide 
Mast Size .................................... 1-1/2” to 2” Nom. 
Wind area / Survival ................... 0.50 Sq. Ft. / 100 MPH 
Weight / Ship Wt. ........................ 3 Lbs. / 4 Lbs. 
 

M2 Antenna Systems, Inc. 

Model No: 2M4 

FEATURES: 

 

Clean mechanical design, full band coverage and computer optimized performance make the 2M4 an exceptional 

antenna. A totally sealed and grounded driven element design with a unique internal balun provides the heart that will 
beat for years to come.   It is perfect for base and portable use, with FM, Packet or SSB. Every station needs one!!! 

SPECIFICATIONS: 

*Subtract 2.14 from dBi for dBd 

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