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Page 62
CHAPTER NINE
SECTION 9.1
OPTIONAL
6M PASSIVE ELEMENT KIT (continued)
Locate the 6m mounting plate (PN 10-1019-31). Using the 1 inch U-bolts (PN 60-0001) as shown in
figure
9.05
, place the 6m passive element on top of the 6m mounting plate with the slit in the plastic sleeve point-
ing downward as shown in
figure 9.06
. Position the plastic insulator so that it is centered between the two
U-bolts. Tighten using the 1/4” Nylock nuts (PN 60-0030). Be careful not to over-tighten or you will crack
the plastic insulator.
It is critical that each of the three 6m passive elements be placed in the same configuration, so that the
center-to-center element spacing is correct. FOR EACH 6M PASSIVE ELEMENT, THE SIDE OF THE 6M
MOUNTING PLATE THAT HAS THE BOLT HOLES, NEEDS TO FACE TOWARDS THE REFLECTOR EHU.
Figure
9.08
shows a mounting detail drawing. Remember, center-to-center spacing is more important than any
other measurement if you want your antenna to function as it should.
Refer to the measurements that were marked in chapter one, section 1.1. We have included the center-to-
center lengths again here for your convenience as shown in
figure 9.09
. Refer to
figure 9.09
for the correct
size of aluminum saddle and 5/16” hex head bolts. Use the Nylock nuts (PN 60-0046) to tighten the 6m
mounting plate enough to hold it in place, but loose enough you can move it. Level each passive element
as shown in
figure 9.07
and then tighten firmly in place. Secure set screw in bottom half of saddle. Repeat
for remaining 6m passive elements.
6m
Passive
element
Center-to-center
measurement Reflec-
tor EHU to 6m passive
Saddle
Size
Hex head
bolt length
D1A
117.5 inches
2 inch
5/16 x 3.25 inch
D2A
275.0 inches
3 inch
5/16 x 4.5 inch
D3A
432.0 inches
2 inch
5/16 x 3.25 inch
ATTACH THE 6M PASSIVE ELEMENTS TO THE BOOM
REFLECTOR EHU
BOOM
RE
F
FIG. 9.06
FIG. 9.05
FIG. 9.09
FIG. 9.08
FIG. 9.07