Tools handy for assembly process: Phillips head screwdriver,11/32” nut driver or socket, 7/16” end
wrenches / sockets, measuring tape. *We have supplied a small container of zinc paste with the
hardware. It is best to apply a small amount of this zinc paste to each aluminum to aluminum
connection to help slow down the oxidation process and for the best electrical connection. The zinc
paste can also be used on the threads of the stainless steel hardware to minimize thread galling.
1. This antenna uses a two-piece boom which has two U-Bolt patterns that allows the antenna to be
mounted either Horizontal or Vertical.
2. Layout the boom sections as shown on the
DIMENSION
sheet, *
Note*
the rear boom is 36” long
and has a Swedged end to fit the front boom. Assemble with 8-32 x 1 1/4” screws and lock nuts.
Tighten the nuts securely.
3. To install the center element sections, layout the following parts: (3) center element sections 1/2” x
36”, (3) element mounting blocks and the (3) 8-32 x 2” screws and lock nuts.
4. Slide the 8-32 x 2” screw through the hole in the center of the element section, be sure to have the
two end holes pointing down. Now slide the element and screw through an element mounting
block. Take this whole assembly and attach it to the first element mounting hole on the top of the
rear boom section. Secure the element into place with an 8-32 locking nut. Repeat the same
assembly for the driven element and the director element.
5. Preassemble the 1/2” element compression clamps by installing a 8-32 hex nut into the inner flat
surface of the clamp. While holding the 8-32 hex nut in place with your fingers, insert a 8-32 x 1/2”
screw through the hole and tighten until the screw is flush with the bottom of the hex nut.
6. Slide a 1/2” compression clamp assembly onto each tip of the 1/2” x 36” element sections. Align
the screw with the hole on the bottom of the 1/2” tube and thread the screw into the hole enough to
hold the compression clamp in place.
7. Layout the 3/8” element tips on a table or work bench. Starting from the rear of the antenna, insert
the (2) longest elements into either side of the 1/2” center element sections. Using the
TUNING
CHART
for proper frequency setting, slide the 3/8” elements in or out until you have the
desired
EXPOSED
tip length. At this point, tighten the 1/2” element compression clamps until the
3/8” elements do not spin or move. Continue with the (2) next longest elements for the driven
element section and finally the (2) shortest elements for the director. It’s always best to double
check that all of the 1/2” element compression clamps are completely tightened at this point.
8. Mount the Gamma connector block assembly just forward of the element mount block on the
bottom side of the boom using a single 8-32 X 1-1/4" screw . Orient the block with the SO-239 feed
connector facing towards the center of the antenna.
9. Slide the Gamma Insulator onto the Gamma Rod making sure that the insulator hangs off the end
of the Gamma Rod 1/8”.
10. Slide a #6 flat washer over the Gamma Connector Stud. Now install the flat surface of the Gamma
Rod over the stud followed by a #6 lock washer and 6-32 nut. *
Note*
The connector stud can spin
freely. Use a pair of needle nose pliers or a small wrench to hold the flat surface when tightening.
11. Now slide the Gamma Tube over the Gamma Insulator and refer to the
TUNING CHART
for
proper placement.
6M-3SS ASSEMBLY MANUAL
