maco_M108C.pdf

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ASSEMBLY INSTRUCTIONS
8 ELEMENT - 11 METER
MAXIMUM BEAM
r
MlOSC
Mace Manufacturing Co. - Division of Majestic Communications, Inc.
4091 Viscount - Memphis, Tennessee 38118 (901) 794-9494
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MAC0 M108C
PARTS LIST
PART QTY
D.
LENGTH
DESCRIPTION
CHECKLIST
GOlP
1
GAMMA MATCH
PO4
1
6” s l/4”
18”
PLATE
TOlR
14
l/2”
72” ALUM. TUBING
80-l/2” ALUM. TUBING
72”
T04P
2
l/2”
,035”
,047”
,125”
.065”
TllP
8
5/8”
ALUM. TUBING SLOTTED BOTH ENDS
T35P
1
2.832”
48”
ALUM. TUBING
T39R
2
3”
20”
ALUM. TUBING
vo2
1 l/2” x
36”
GUY SUPPORT
WD3
1
1 l/2”
6/18”
50”
STEEL GUY CABLE
co3
3
5/S”
HARDWARE BAG #l
METAL CLAMPS - A2
EGG INSULATORS
HEX NUTS
LOCKWASHERS
SQUARE NUTS
LOCKWASHERS
HEX NUT
LOCKWASHER
FLAT WASHERS/CUT
EYEBOLTS - W/2 NUTS EACH
HEX NUTS
LOCKWASHERS
PLASTIC CAPS - BLACK
l/2” PLASTIC CAPS - BLACK
3-112” PLASTIC CAPS - RED
MACHINE SCREWS
EGl
6
NO1
10
5116”
5116”
lo-24
#lO
l/2”
l/2”
l/2”
5116”
31%”
318”
,437”
3”
3”
lo-24
l/2”
NO2
10
Nil
25
N12
4
N15
1
N16
1
N17
3
N18
2
N19
26
N20
26
PL2
16
PL6
1
PL6R
1
s21
21
S28
1
1”
HEX BOLT
FEMALE COAX CON. W/MOUNT NUTS
MACHINE SCREWS
EXTRUDED ALUM. CLAMPS
GAMMA STRAPS
GAMMA STRAPS F/COAX. CONNECTOR
S42
1
s43
3
lo-24
51%”
W5X
16
202
2
208
2
UOl
5
2”
3”
HARDWARE BAG #2
PLATED U-BOLTS
PLATED U-BOLTS
uo3
13
so1
5
2”
3”
HARDWARE BAG #3
PLATED SADDLES
PLATED SADDLES
so3
13
BE3P
8
HARDWARE BAG #4
3” BOOM TO 5/S” ELEMENT MOUNTS
WHEN ORDERING REPLACEMENT PARTS, ALWAYS GIVE PART NUMBER AND DESCRIPTION.
PLEASE NOTE: In an effort to keep the price on Mace Antennas down, we have decided not to clean up all the burrs and
rough edges on the parts. We recommend that you deburr and clean up each part with files, sandpaper, etc. so that they go
together easily. We are aware this needs to be done, but have elected not to do it to save you the money we would have to
add to the price of the kit for this service.
1
MlOSC
SIZE
O.
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REFLECTOR
BLACK PLASTIC
ELEMENT
DIRECTOR
SECOND
DIRECTOR
THIRD
DIRECTOR
HORIZONTAL POLARIATION
DIRECTOR
REFLECl
1
TOR
63 1-k’
DRIVEN
SECOND
DIRECTOR
PLASTIC CAP
RADIATION
(PLGR)
SIXTH
DIREC
BLACK
PLASTIC
CAP
P-6)
DIRECTION
OF /
RADIATION
P
RED PLASTIC
CAP (PLGR)
VERTICAL POLARIATION
FIGURE 1 GENERAL INSTRUCTIONS
This drawing shows a view of the antenna assembled. The M108C may be used horizontally or
vertically. These instructions and FIGURES 2 through 4 show the correct assembly instructions. It is highly
recommended that rope be put in the elements to prolong their life. All hardware should be tightened
securely, and then coated with silicon rubber sealant or similar compound to prevent loosening from wind
vibration.
Take care to locate all parts accurately per dimensions given. Complete each step as instructed before
going on to following steps.
Upon completion of assembly, install the red plastic cap (PL6R) on the director end of the antenna,
and the black plastic cap (PL6) on the reflector end. This will allow you to determine at a glance the direction
of transmit and receive.
M108C
2
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3” BOOM
3” BOOM
TWIST END OF GUY
THREAD GUY WIRE THROUGH
EGG INSULATOR AND TWIST END
HEX NUT
,EYEBOLT
’ y ‘TW:,END
OF
1” FROM ELEMENT
DIRECTOR
BOOM
/
I
-
2 END OF GUY
'ntrLH't.
,’ ,v”\. VERTICAL GUY SUPPORT
NOTE-
THIS CLAMP DOES
NOT ATTACH TO
-, ,- m, *Y-F
PU RE 2 9
-
LOCKWASHERS
HEX NUTS
FIGURE 2 BOOM ASSEMBLY
(See figure 2A.) First mark the center of the 2.832” O.D. boom coupler (T35P). Slide both of the
20’ sections of 3” O.D. tubing over the ends of the coupler so they both butt at the coupler center.
(See figure 2B.) Mark the center of the boom to mast plate. Center the plate (P04) on the boom and
secure with four of the 3” U-bolts (U03) and saddles (S03) and eight of the j/16” lockwashers (N02) and
hex nuts (NOl). Avoid over-tightening the U-bolts as doing so may crush and weaken the boom. Now,
reverse a 3” U-bolt so that it points away from the boom to mast plate. Slide on a 3” saddle, followed by
the vertical guy support, then secure with 5/16” lockwashers and hex nuts.
From the roll of guy cable (WD3), cut two lengths 2’ long. Take the two eyebolts (N18) and pass
one end of the cable through the eye of the bolt and wrap. Pass the opposite end of the cable through the
hole in the egg insulator (EGl) and adjust so that the length of cable between the eye of the eyebolt and the
egg insulator is l’, then wrap the cable. Make two of these, then place the eyebolts onto the guy support with
one nut inside and the other nut on the outside of the vertical guy support. Tighten only finger tight at this
time.
3
MlOSC
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I Please read the Assembly and Troubleshooting Tips at the
I
BE3 CLAMP
ELEMENT
\
NUTS AND
b-BOLT
FIGURE 3A ELEMENT CENTER SECTION MOUNTING
Refer to the main sketch (Figures 1A & B) for spacing of the elements. Slide the 5/8” x 6’ center
sections inside the boom to element mounts. Mount these onto the boom with 3”” U-bolt assemblies as
shown. Refer to Figure 4 (Gamma Match Assembly) before mounting the driven element and note the
position of the coaxial connector assembly. Space the first saddle 1” from the end of the boom. Again,
be careful not to over-tighten the U-bolts. Line up all the sections after mounting with a level or by any
other accurate means. At this time, refer to Figure 2B and complete the boom guy support system.
Allow 6” of cable for the egg insulator wraps and 16” for the wraps around the boom at the boom
to element mounts. Distances shown should be adhered to plus or minus 1”. Pull the sag out of the boom
by tightening the outside nuts on the guy support, then lock the inside nuts against the guy support.
IO-24 x l/2” MACHINE
SCREW
IO-24 SQUARE
ELEMENT
W58 CLAMP
FIGURE 3B ELEMENT END SECTION MOUNTING
Assemble the W58 clamps as shown in Figure 2B. Thread the l/2” machine screw (S21) into the
square nuts (Nl 1) only slightly at this time. Refer to Figure 4 (Gamma Match Assembly) and note the
position of the 5/8” metal clamps that will attach the gamma match to the driven position.
Insert the l/2” O.D. x 72” tubing (no slots) into the driven element and director center sections. Slide
on a W58 clamp assembly over each element and tighten slightly.
Assemble the reflector in the same manner by using the l/2” O.D. x 72” slotted one end sections.
At this time, refer to the element length chart on page 7 and set the element lengths. In setting element
lengths, telescope the l/2” O.D. into the 5/8” O.D. by equal amounts. In any case, the minimum length
telescoped into the next larger size should be 3”. Measure overall element lengths, then push the .437” black
plastic caps (PL2) over the ends of the premeasured elements.
MlOSC
4
end of this instruction booklet before assembling elements.
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