L 400 ASER

L  400 ASER
LASER 400
12 ELEMENT SWITCHABLE POLARITY
10/11 METER LASER BEAM
LASER 400
PART QTY O.D.
SIZE
T01
T11P
T31P
20
12
2
½”
5/8”
2”
.050”
.050”
.050”
T52P
T53
T57P
P03P
V03P
WD4P
W04P
FA1P
G01P
Z08P
S42
2
1
2
1
1
1
1
4
2
4
2
2”
.050”
1.845” .050”
2”
.050”
1/4”x 6”
1”X1”
6/18
7/14
LENGTH DESCRIPTION
72”
72”
80”
80”
80”
36”
8”
24”
30’
40’
ALUMINUM TUBING
ALUMINUM TUBING SLOTTED BOTH ENDS
ALUM. TUBING SWAGED ONE END TO 1.875
& SLOT OTHER END 3”
ALUMINUM TUBING SLOTTED ONE END 3”
ALUMINUM TUBING
ALUM. TUBING SWAGED ONE END TO 1.875”
2” BOOM TO 2” MAST PLATE
VERTICAL GUY SUPPORT
STEEL GUY CABLE
BARE COPPER WIRE
FIBERGLASS RODS
GAMMA MATCHES
GAMMA STRAPS
FEMALE COAX CONNECTORS W/MTG NUT
CHECKLIST
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
_____
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HARDWARE BAG #1
EG2
N18P
PL2
PL5
PL5R
W58
N11
N12
S21
Z02P
4
2
20
1
1
24
32
8
32
4
1
1
1
1
UO1
NO3
25
50
5/16”
.437”
2”
2”
#10-24
#10
#10-24
2”
4”
½”
EGG INSULATORS
EYE BOLTS W/NO1 (2)
PLASTIC CAPS – BLACK
PLASTIC CAP – BLACK
PLASTIC CAP – RED
EXTRUDED ALUMINUM CLAMPS
SQUARE NUTS
LOCK WASHERS
MACHINE SCREWS
GAMMA STRAPS
FIBERGLASS ROD BAG W/4 SCREWS
INSTRUCTION SHEET
TIP SHEET
WARRANTY/SAFETY SHEET
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_____
_____
_____
_____
_____
_____
_____
_____
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HARDWARE BAG #2
PLATED U-BOLTS
COMBINATION LOCK NUT AND WASHER
_____
HARDWARE BAG #3
SO1
25
2”
PLATED SADDLES
_____
HARDWARE BAG #4
BE2P
12
BOOM TO ELEMENT MOUNTS
_____
Please note: In an effort to keep the price on Maco 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.
Revised 05/09
REFLECTOR
(SEE FIG. 38)
DRIVEN ELEMENTS
(17’ - 5”) A
PL5 - BLACK
PLASTIC CAP,
GAMMA
MATCHES
(SEE FIG. 4)
1st DIRECTORS
DIRECTION
OF
RADIATION
\
\
2nd
DIRECTORS(16’ - 6”)A
3rd
DIRECTORS -Y
(16’ - 6”) A
4
4th DIRECTORS
(16’ - 2”) A
i
!
i
/’
\
\
\
iPLSR - RED
\,
PLASTIC CAP
‘LPL2 - PLASTIC CAP
(TYP. 20 PLACES)
NOTES:
1. FOR DETAILS OF BOOM & GUY ASSEMBLY AND MAST MOUNTING, SEE FIG. 2.
2. FOR DETAILS OF ELEMENT ASSEMBLY AN MOUNTING, SEE FIG. 3.
3. HORIZONTAL & VERTICAL ELEMENT SPACING DIMENSIONS ARE IDENTICAL WITHH l/4” GAP BOOMTO-ELEMENT MOUNTS, SEE FIG. 3C.
LASER 400
LASER400
2
MACOLASER400
ASSEMBLY INSTRUCTIONS
FIGURE 1. GENERAL INSTRUCTIONS
This drawing depicts an overall view of what the antenna should look like upon completion of
assembly. Refer to Figures 2 thru4 for specific assembly details. All hardware should be coated with a silicon
rubber sealant or similar compound to insure that wind vibration does not cause it to work loose. Upon
completion of assembly, install the red plastic cap (PLSR) on the director end of the antenna, and the black
plastic cap (PL5) on the reflector end. This wi 11 allow you to determine at a glance the direction of transmit
and receive.
FIGURE 2. BOOM & GUY ASSEMBLY
To assemble the boom, first mark the center of the boom coupler (T53), and slide the unslotted ends
of the center boom sections (T52P) over each end of the coupler so that they butt in the center. Next attach
the boom-to-mast plate (POlP) and the vertical guy support (VO3P) at the boom center using 2’ U-bolts,
saddles and hardware as shown. (Refer to Detail 2A)
Now, slide the swaged ends of the intermediate boom sections (T3 1P) into the slotted ends of the
center boom sections. Secure with 2’ U-bolts, saddles and hardware as shown (Refer to Detail 2B) Next,
slide the swaged ends of the end boom sections (T57P) into the slotted ends ofthe intermediate boom sections
and secure in the same manner. (Refer to Detail 2B)
The first step in assembling the guy cable is to cut four lengths of 2 feet each off the roll of cable.
Take two 2 foot lengths and attach one end of each to an egg insulator (EGl) and the other end to an eyebolt
(N18) so that the distance between the eyebolt and insulator is 1 foot. Attach both eyebolts to the vertical
guy support with 5/l6” hex nuts as shown in detail 2C. Run the outside hex nuts only a couple of turns onto
the ends of the eyebolts and leave the inside nuts loose so that you can take the slack out of the cable later.
Now take both 2 foot lengths and attach an egg insulator to one end of each in the same manner. (At this
point, it is necessary to go on to element assembly and mounting, before completing the guy cable assembly.)
Take the 2 foot cable lengths with the egg insulators attached and fasten one to the boom at the driven
element and the other at the 3rd director. Wrap as shown in detail 2D. so that the distance between the boom
and insulator is 1 ft.
Now take the remaining cable and allowing approximately 9 inches at each end for wrapping, stretch
it between the insulators on one end of the boom and cut it off. Leaving as little slack as possible, wrap each
end of the cable around the insulators as shown in details 2C and 2D. Do the same thing for the cable on
the other end of the boom.
Take the rest of the slack out of the cables by tightening the outside hex nuts on the eyebolts. Lock
them in place by tightening the inside hex nuts.
This antenna is designed for mounting on a 2’ O.D. heavy duty mast. Mount using 2’ U-bolts,
saddles and hardware as shown in Detail 2E.
CAUTION: TARE CARE TO AVOID ANY CONTACT WITH OVERHEAR POWERLINES
WHEN RAISING YOUR ANTENNA. SERIOUS OR FATAL INJURY COULD RESULT.
3
LASER 400
ELEMENT ASSEMBLY
FIGURE 3
Prior to assembling elements slide a boom-to-element mount (BE2P) onto each of the (12) element center
sections (TllP). Assemble each element as shown using the clamps and hardware specified. Refer to the element table
to determine dimensions for each element. Install a black plastic cap (PL2) onto both ends of each element. Assemble
the reflector elements in the same manner, sliding the fiberglass arms approximately 6 inches into the ends of the center
sections (TllP). Snug the clamps but don’t tighten at this time because the arms will have to be adjusted after installing
the reflector wire.
FIGURE 3B ELEMENT MOUNTING
Mark each element at the center and be sure that the boom-to-element mounts (BE2P) are centered on the
elements before tightening hardware. Starting 1” from the director end of the boom, mount each element using 2” Ubolts, saddles, boom-to-element mounts and hardware as shown. Refer to Figures 1 & 3B for element spacing
dimensions. (At this point go back and complete the guy cable assembly.)
FIGURE 3C
REFLECTOR ASSEMBLY
The length of the reflector wire is very critical. It must be the correct length to operate correctly. Take the wire
(WO4P) and uncoil it making sure that there are no kinks; secure it to a nail. Pull the wire until it stretches an inch or
so. The easy way to get the correct length for the reflector loop is as follows:
1. Drive 2 nails in a board or fence l/2 the length of the loop apart --which is 225-112” between them.
2. Stretch the wire around the nails by hand as tightly as possible and splice ends together. Solder the splice. Remove
one nail and remove the loop. Cut any excess wire off.
3. Loosely assemble the machine screws (S21), flatwashers (N26), lo&washers (N12), and hex nuts
(NO6) onto the lugs of the fiberglass arms, adjusting the length as shown.
4. Tighten 3 of the 4 clamps that hold the fiberglass rods.
5. Install the wire as shown.
6. Tighten the wire by pulling the fourth fiberglass rod until the wire is the same tightness as it was
around the nails. The wire loop is now the correct length. Note the total length of the loop is critical, and also is the
length of each side. REMEMBER: Reflector dimensions are only preliminary. Change to get equal sides of 9’ 4-3/
4” . Fiberglass length is not critical, however the equal wire length of 9’ 4-3/4” is very critical.
FIGURE 4
GAMMA MATCH MOUNTING
Mount the (2) gamma matches (GOlP) to the horizontal and vertical driven elements, using the gamma straps
(ZO2P, ZOSP) and attaching hardware as shown. Attach your 52 ohm coaxial cables to the connectors (S42) and dress
along boom and down the mast.
ADJUSTING STANDING WAVE RATIO
Refer to Figure 4. The dimensions given are approximate and should be used as a starting point. The following
instructions cover the adjustment of one gamma match. To adjust the second gamma match, simply repeat this
procedure.
The gamma match has 2 adjustments. First is the capacitor adjust and the second is the slider adjust. Connect
a S .W .R bridge to the coax between your transmitter and the antenna and check the S .W.R. If adjustment is required
loosen the clamp on the gamma match and the screws holding the slider (Gamma Straps ZO2P). Next move the capacitor
adjustment first in one direction then the other until a minimum S.W.R. reading is obtained. If S .W.R. is not yet
satisfactory, move the slider out 2” away from the boom. If the reading has gone up, move the slider back to the original
position and then 2” toward the boom. Now readjust the capacitor for minimum S.W.R. you should now be able to
determine which direction to move the slider. Repeat the above procedure moving the slider in smaller increments until
a satisfactory S.W.R. reading is obtained. Tighten all hardware. Disconnect the S.W.R. bridge and reconnect your
coaxial cable.
LASER 400
4
PO1 P - BOOMTO-MAST PLATE
I
I
I
\
UOI. SOI. NOI, N O 2 1
2” U-BOLT & SADDLE
5116” NUTS AND WASHERS
DETAIL 2A
(TYPICAL 4 PLACES)
L----------------d
2” U-BOLTS a SA D DL E S
5116” N U T S a WASTERS
(TYP. 5 PLACES) I
- - - - - - - ---m- -d
DETAIL 28
‘d ________-_-
*NOTE:
HORIZONI‘AL ELEMENTS ONLY ARE SHOWN
FOR REFERENCE. SEE FIGURE 3B FOR
ELEMENT MOUN’I‘ING DEI‘AlLS
++I
* DRI VEN ELEMENT
T
EGI - INSULATOR
I
/“3rd DIRECT‘OR
COUPLER
i
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BOOM WITH BOOM-TO- ,
MAST PLATE ATTACHED
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\
\
12”
\
N18. NO1 J
4” EYEBOLT
5/16” HEXNUTS
12”
\
\
\
\
WD4P
I
GUY CABLE
\
‘1
V
\
I
WD4P
/
GUY CABLE
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INSULATOR
DETAIL 2C
~-----__----- __________--
5
UOI, SOI. NOl, N02, 1
2” u-BOLTS a SADDLES
5f16” N U T S a WASHFRS
LHORIZONTAL
i
BOOM-TOELEMENT MOUNT;
I
2” O.D. MAST
(CUSTOMER FURNISHED) ;
I
I
i
DETAIL 2D
I
i (TYPICAL 2 PLACES)
I
DETAIL 2E
h _ _ _ _ -----------s-J
-/ c---___---- _ _ _ _ / h
;
LASER400
W58, S21, Nl 1
CLAMP WITH #10-24x1/2”
SCREW a NUT
/-
5/B” O.D.
TUBING
PL2
---_/.
I
W58, S21, Nil
CLAMP WITH #10-24x1/2”
SCREW a SQ. NUT
W58
1
17’
0” 1 5’
fj”
1
piYEJ-q
I
5/B” O.D.
TUBING
,-TIIP
1ST DIRECTOR
REFLECTORDIMENSIONS AREONLY PRELIMINARY. CHANGETOGETEQUALSIDE OF9’ 6”.
FIBERGLASS LENGTH IS NOT CRITICAL, HOWEVER THE EQUAL WIRE LENGTH OF 9’ 4 314” IS
VERY CRITICAL.
I
rTOl
W58
/--PL2
.-.
- -.
I
I
ELEMENT ASSEMBLY (FIGURE 3A)
TllP
518” O.o.\
BE2P
BOOM---..,
TO-ELEMENT,
MOUNT
\Y
MOUNT
END dF
BOOM
UOI, SOI, NOI. N02,
2” u-BOLT a
5t16” NUTS a W A SH
UO1. S02. NOI, NO2 \
2” u-BOLT a S AD D L E
S/16” NUTS a WASHE R S
ELEMENT
E R S
ELEMENT
VERTICAL
ELEMENT
MOUNTING
FIGURE 38
fiE3c) ’
Please read the Assembly and Troubleshooting Tips at the
end of this instruction booklet before assembling elements.
FIBERGLASS
ROD (FAI P)
LASER 400
SPACING
* NOTE: THESE DIMENSONS ARE APPROXIMATE. REFER TO THE INSTRUCTIONS ON
ADJUSTINNG THE S.W.R. TO DETERMmE EXACT SETTINGS. THERE ARE 2 SEPARATE
GAMMA ADJUSTMENTS, 1. CAPACITOR ADJUSTMENT, 2. SLIDER POSITION.
DO NOT MOVE BOTH AT THE SAME TIME.
MOVE THE CAPACITOR FIRST, THEN, IF NECESSARY MOVE THE SLIDER, AND GO BACK TO
THE CAPACITOR.
ZOBP-GAMMA STRAPS
(INSTALL FLUSH AGAINST
BOOM-TO-ELEMENT MOUNT)
S21 Nil, N 1 2 1
_ -. _ I^.. -.I
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e.*rl>n”1,/
WTY”
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,,- _I. .-.
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N U T
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HORIZONTAL
DRIVEN
ELEMENT
3/o” 24 NUT
~YAsTIC
F L A T W A S H E R SHOULDEF;
\A,‘39cIl=-
“CK I ILHL
nRlVEN
ELEMENT
LGOlP
HORIZONTAL
GAMMA MATCH
GOIP
VERTICAL
GAMMA MATCH
LASER 400
GAMMA MATCH MOUNTING
LASER 400
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