TOOL REQUIRED FOR ASSEMBLY: screwdriver, 11/32 nut driver or wrench, 7/16” and1/2” socket or end
wrenches, measuring tape.
1. Assemble the boom using 8-32 X 1-1/4 screws and locknuts to join sections. Sections may may be swaged
to each other or use 7/8” internal splice sections.
Note: If mounting antenna to a standard H-frame with a T-brace kit, it is important to
install the T-brace coupling bars to antenna before elements. Refer to H-Frame and T-
brace drawings for placement and more information.
ASSEMBLING THE HORIZONTAL ELEMENTS
2. Lay out the elements by “H” 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 1.937” 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 shaft retainers 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.
Note that the Director Elements do not consistently diminish in length from rear to front, so pay
close attention to length and position.
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. Stainless steel SHAFT RETAINERS lock the elements in
place. They should always be used for permanent and long
term antenna installations. For portable or temporary use, the
button insulators are adequate for holding the elements and
the retainers may be left off.
436CP30 ASSEMBLY MANUAL
