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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 Incorporated 

09/11/15 

Rev.01 

Model  ......................................... 140CP14M 
Frequency Range ....................... 135 To 144.5 MHz 

*

Gain .......................................... 12.53 dBi 

Front to back .............................. 19 dB Typical 
Feed type ................................... Folded Dipole 
Feed Impedance. ....................... 50 Ohms Unbalanced

 

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

Power Handling .......................... 1.5 kW 
Boom Length / Dia ...................... 134” / 2” 
Maximum Element Length .......... 43” 
Turning Radius: .......................... 71” 
Stacking Distance ....................... 92” HIGH—96” WIDE 
Mast Size .................................... 2” Nom. 
Wind area / Survival ................... 1.0 Sq. Ft. / 100MPH 
Weight / Ship Wt. ........................ 6 Lbs. / 10 Lbs. 
 

M2 Antenna Systems, Inc. 

Model No: 140CP14M 

FEATURES: 

The 140CP14M is high performance circular polarized antenna with a remarkably clean pattern. The pattern is important 
in order to match the antenna’s noise temperature with modern low noise preamps. This antenna is ideal for satellite work 
but is also excellent for terrestrial uses like long haul tropo communications. 
 

The CNC machined driven element module is O-ring sealed and weather tight for low maintenance and long-term 

peak performance. Internal connected are encapsulated in a space-age silicone gel that seals out moisture and improves 
power handling. The 3/8” 6061-T6 rod elements are centered on the boom to minimize interaction and maintain good el-
lipticity. Insulators are UV stabilized and locked in place with stainless keepers. Rugged construction, uncompromising 
performance for the boom length: that’s the M

2

 140CP14M! 

SPECIFICATIONS: 

*Subtract 2.14 from dBi for dBd 

Summary of Contents for 140CP14M

Page 1: ... circular polarized antenna with a remarkably clean pattern The pattern is important in order to match the antenna s noise temperature with modern low noise preamps This antenna is ideal for satellite work but is also excellent for terrestrial uses like long haul tropo communications The CNC machined driven element module is O ring sealed and weather tight for low maintenance and long term peak pe...

Page 2: ... 64 from rear Install a 1 4 20 x 1 bolt and locknut into each clamp but do not tighten at this time NOTE IF MOUNTING ANTENNA TO H FRAME SLIDE T BRACE CLAMP ON THE BOOM BEFORE INSTALLING ELEMENTS INTO BOOM 2 MOUNTING THE REAR HORIZONTAL SET OF ELEMENTS Refer to the DIMENSIONAL DRAWING for the length and locations of elements Start with the longest element the REFLECTOR Balance the 3 8 Element over ...

Page 3: ...ompletely off the element then try again Now repeat for the other side of the element Continue installing retainers until all seven elements are locked in place 8 Install two 8 32 x 1 4 set screws internal Allen head tool supplied into each of the SHORTING BARS Slide the bars onto the 3 8 rod driven element tips and 1 4 Driven Element Block Rods Position the Shorting Bars as specified on the Dimen...

Page 4: ... to rear and secure to boom again between the reflector and driven element Allow about 60 inches of cable to hang in a loop from the REAR of the antenna before routing back to a mast or cross boom attach point Feedline should clear all element tips and sides by al least 12 This will maintain top antenna performance and good standing wave ratio 17 Locate the BALANCE POINT of the antenna and slide t...

Page 5: ...140CP14M DIMENSION SHEET ...

Page 6: ...3 16 M2ASB0310 4 Button insulators black polyethelene 3 8 30 Shaft Retainer 3 8 SS 30 Nut seal 3 8 32 with neoprene face 8 Cable ties 8 black nylon 6 Assembly instructions 1 IN HARDWARE BAG 1 4 20 x 2 1 4 bolt SS 3 1 4 Lockwasher SS 3 1 4 20 x 1 bolt SS 12 1 4 20 locknut SS 12 Set screws 8 32 x 1 4 SS 8 Allen Wrench 5 64 1 Push tube 5 8 for 3 8 Element Rods 1 M2 ANTENNA SYSTEMS INC 4402 N Selland ...

Page 7: ...RG 6U 18 5 2 Nut seal 3 8 32 with neoprene face 8 Cable ties 8 black nylon 6 Penetrox Zinc Paste 1 Assembly instructions 1 IN HARDWARE BAG 1 4 20 x 2 1 4 bolt SS 3 1 4 Lockwasher SS 3 Set screws 8 32 x 1 4 SS 8 Allen Wrench 5 64 1 M2 ANTENNA SYSTEMS INC 4402 N Selland Ave Fresno CA 93722 559 432 8873 Fax 432 3059 www m2inc com Email sales m2inc com 140CP14M REFRESHER KIT ...

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