249CP24 ASSEMBLY MANUAL
11. When all the elements in one plane are in place, start at one end using a tape measure. Center each
element to 1/16 inch or better. We recommend you DO NOT install the keepers at this time, just center each
element. When centering is complete, stand at the end of the boom and sight down the tips of the elements
noting any irregularities. The tips should form a gentle curve and each side should look like a mirror image of
the other. This is just a crude check to catch major errors or any irregularities. Correct if found.
12. The stainless steel element keepers are stiff so grasp the element firmly while sliding the keepers in place.
USE THE 3/8” X 3” TUBE TO AID IN THE INSTALLATION. Double check your centering dimensions and then
push the keepers up tight against the button insulators.
13. Repeat steps 10 through 13 for the other set of elements.
14. Now that all the elements are in place, sight down the boom looking for the element alignment irregulari-
ties around the boom splice joints. Align and tighten.
15. Pick up the boom and find the weight balance point. Remember the feedline will attach at the rear and add
a bit more weight on that end. Position the boom to mast plate accordingly, attaching it to the boom with the
1-1/8 inch U-bolts, cradles and nuts.
16. Circular Polarized antennas such as this antenna must be mounted on non-metallic masts or support
booms and the feedlines must run off the back of the boom so as not to disturb the standing wave ratio and
the circular properties of the antenna. If this antenna is to be mounted as a par of transmit-receive antennas a
6 to 8 foot long by 1-1/2 inch diameter cross boom is recommended. When attaching the main 50 ohm
feedline, tape or nylon tie it securely to the rear stub of the boom to remove stress on the male “N’ connector.
THIS ANTENNA HAS BEEN CAREFULLY MANUFACTURED BY
M2 Antenna Systems, Inc.
4402 N. Selland Ave.
Fresno, CA 93722
(559) 432-8873 Fax (559) 432-3059
www.m2inc.com email: [email protected]
Содержание 249CP24
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