M2 Antenna Systems 2M-440XPSS, Manual

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11. Install the two halves of the Shorting Bar onto the Gamma Tube and the driven element below.
Refer to the DIMENSION sheet for proper location of the shorting bar. Tighten the shorting bar in
place using a single 8-32 x 7/8” screw and lock nut.
12. Now Slide the 3/8” x 1/2” Vinyl cap over the Gamma Tube until it is flush with the end of the
Gamma Tube.
13. At this point it is important to determine whether your antenna will be mounted horizontally
(SSB/
CW) or Vertically (FM). Locate the two sets of holes at the rear of the antenna.
14. Insert the 2” u-bolt into the uni-cradle and slide this assembly into one of the two sets of holes on
the rear of the boom. Finish the assembly by installing (2) 1/4” lock washers and 1/4-20 nuts.
15.
MOUNTING FOR HORIZONTAL OR VERTICAL POLARIZATION
Route the feed line coax towards the rear of the antenna past the reflector element and onto your
mast. Secure the feed line coax to the antenna boom with the supplied nylon ties.
When mounting
the antenna vertically polarized, make sure to orient the gamma tube with the vinyl cap
facing up.
To maintain good VSWR and antenna pattern: Keep metallic masts, cross booms and the feed line
coax out of the element plane.
Stacking or Phasing ? Call us and let us help you DO IT RIGHT.
T
HIS COMPLETES THE ANTENNA ASSEMBLY.
Carefully manufactured by:
M
2
ANTENNA SYSTEMS, INC.
4402 N. Selland Ave.
Fresno, CA 93722
(559) 432-8873 Fax: 432-3059
www.m2inc.com Email: sales@m2inc.com
2M-440XPSS ASSEMBLY MANUAL