Installation And Stacking Information - M2 Antenna Systems 222-10EZ Assembly Manual

222-10EZ ASSEMBLY MANUAL
6. Mount the DRIVEN ELEMENT BLOCK ASSEMBLY to the top of the boom using a single 8-32 X 1-
1/4" screw. Orient the block with feed connector facing to the FRONT.
7. Attach balun, routing coax along boom in a single loop. Tighten the connectors gently using a
7/16" end wrench. Form the balun close to the boom and secure with a nylon cable tie. Tie should
be snug but not crushing or kinking the coax.
8. Install the 8-32 x 1/4" set screws (internal Allen head - tool supplied) into the SHORTING BARS.
Slide the bars onto the 3/16" rod driven element tips and then onto the 1/4" Driven Element Block
Rods. Position the Shorting Bars according to the Dimension Sheet or drawing on previous page:
the dimension is between the outer face of the driven element block and the inner face of the
shorting bar. Align the bars and rods with each other and tighten the setscrews.
10. The boom to mast plate is normally mounted at the balance point. Since the feed line represents
significant weight it is best to have it, or a temporary equivalent, attached and fastened along the
boom with cable ties before final mounting the plate. Use two 1" U-bolts and the stainless locknuts
provided. DO NOT OVER TIGHTEN. 2" U-bolts are provided for mounting the antenna to your
mast.

INSTALLATION AND STACKING INFORMATION

A. Never mount the antenna with a metallic mast, crossboom or feedline in the element plane:
pattern and performance will deteriorate. Use a fiberglass or equivalent mast or crossboom instead.
Route feedline at right angles to elements when exiting boom.
HORIZONTALLY POLARIZED, the antenna may be mounted to a metallic vertical mast or a horizontal NON
-METALLIC crossboom. If mounted to a horizontal crossboom, route the feedline forward to the boom-to-
mast plate, loop down at right angles to the elements, and bring back to crossboom at least 6" beyond
element tips.
VERTICALLY POLARIZATED, the antenna may be mounted to a NON METALLIC VERTICAL MAST or a
horizontal metallic crossboom. If mounted to a vertical mast, route the feed line forward to the boom-to-
mast plate, loop out at a right angle to the boom, and bring down to the mast at least 6 inches below the
element tips.
B. To optimize the performance of this high quality antenna, always use high quality coax and connectors.
Old, corroded, or poor quality materials are common sources of serious performance losses and VSWR
problems.
C. If possible, test the antenna, connectors and feedline BEFORE installing to your mast or tower. At
6 feet or more the antenna will exhibit performance similarto higher mounting heights. Set antenna on a
ladder or temporary mast. Check for continuity and that match is close to "specs" across the the rated
bandwidth.
D.STACKING REMINDERS:
1. All driven element blocks MUST be oriented to the same side of boom.
2.All boom-to-mast plates MUST be mounted at the same point on the boom.
3.Feed / phasing lines MUST be of equal electrical length or multiples of 1 wavelength in order to maintain
equal phasing in the array. Improper phasing can severely deteriorate performance.
If you are unsure about stacking multiple antennas, please call M
THIS COMPLETES THE ANTENNA ASSEMBLY.
2
and let us help you DO IT RIGHT