M2 Antenna Systems 2M5-440XP, Руководство пользователя

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2M5-440XP ASSEMBLY MANUAL
TOOL REQUIRED FOR ASSEMBLY: Screwdriver, 11/32 nut driver or wrench, 7/16” and 1/2” end
wrenches, pliers, measuring tape.
1. Assemble the boom sections using the DIMENSION SHEET as a guide. Use 8-32 X 1-1/4 screws
and locknuts to join sections. Sections may be swaged to each other or use 7/8” internal splice
sections.
ASSEMBLING THE 440 MHz ELEMENTS
2. Lay out the elements by length and position as shown the DIMENSION sheet. Start with the
reflector (longest) element. Balance it on your finger to find rough center and push on a black
button insulator to about 1/2” off center. Push the element through the holes 1/2" from the rear of
the boom and install the second button, snugging it up into boom. DO NOT BOTHER CENTERING
the element at this time and DO NOT INSTALL the stainless steel internal locking “keepers” yet. It
is easier to do it after all the horizontal elements are installed in the boom.
3. Install the 3/16” rod DRIVEN ELEMENT as you did the reflector. Then continue with the installation
of the DIRECTORS.
4. Now begin centering the elements. Use a tape measure to EQUALIZE the amount the element
sticking out on each side of the boom. Once you have all the elements centered, sight down the
element tips from the rear comparing each side. Look for any obvious discrepancies and correct if
found.
5. Begin installing the stainless “keepers.” Use thumb and index finger to hold a keeper over end of
the 3/8 x 3” push tube (keeper dished into tube). Hold the element firmly and start the keeper onto
the rod by applying pressure with the push tube. Push the keeper until up tight against the button
insulator (Locking pliers,
lightly clamped up against opposite button insulator will help maintain
center reference and keep you from pushing the first keeper too far). Repeat for the opposite side.
Continue installing keepers until all elements are locked in place.