M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722
Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com
©2014 M2 Antenna Systems Incorporated
08/6/12
Rev.02
Model ........................................ 20M4DX
Frequency Range / Gain ........... 14.0 To 14.350 / 7.3 dBd
Frequency Range / Gain ........... 14.0 To 14.275 / 7.6 dBd
Front to back .............................. 23 dB
Beamwidth ............................... E=58° / H=78°
Feed type ................................... Hair pin match
Feed Impedance........................ 50 Ohms Unbalanced
Maximum VSWR ....................... 1:1
Input Connector ......................... SO-239
Power Handling ......................... 5 kW
Boom Length / Dia ..................... 34’ 8” / 2-1/2”
Element Length / Dia. ................ 35 Ft. / 1” To 3/8”
Turning Radius: ......................... 25 Ft.
Stacking Distance ...................... 56 Ft.
Mast Size ................................... 2” to 3” Nom.
Wind area / Survival .................. 6.9 Sq. Ft. / 85 MPH
Weight / Ship Wt. ....................... 56 Lbs. / 61 Lbs.
M2 Antenna Systems, Inc.
Model No: 20M4DX
FEATURES:
The 20M4DX is the first in a NEW SERIES of mid-sized,
UPS shippable
HF antennas for all bands from 20 meters to 10
meters. Computer designed and VERIFIED with NEC, you will soon see the GAIN and other characteristics advertised in
QST magazine. That should separate the players real fast! A very clean pattern makes it ideal for
STACKING
(3 dB OF
STACKED GAIN!). We now spec FRONT TO
REAR
which defines the pattern from 90 to 270 degrees. On your request
we can supply E and H patterns in free space or over ground. Careful, computer aided mechanical design for LOW
WIND AREA, yet long term electrical and mechanical integrity are assured with CNC machined element-to-boom ring
clamps and other key components. The Teflon coax 1:1 balun and rugged, low loss hairpin match insure all you power
gets to the airwaves! With a little thought, you
WILL
choose
M
2
. Contact your favorite dealer for pricing.
SPECIFICATIONS:
Summary of Contents for 20M4DX
Page 4: ...20M4DX DIMENSION SHEET...
Page 5: ...20M4DX ASSEMBLY DETAIL...
