Maco Antennas M103C Manuel utilisateur

M103C

www.macoantennas.net

MACO M103C

PACKING LIST

PART QTY O.D. SIZE LENGTH DESCRIPTION CHECKLIST

T59P 1 1-1/2” .050 72” ALUM TUBING SWAGED 1 END 6” ___

T28 1 1-1/2” .050 72” ALUM TUBING ___

T11P 3 5/8” .050 72” ALUM TUBING SLTD BOTH ENDS ___

T04 2 ½” .050 80 ½” ALUM TUBING ___

T01 4 ½” .050 72” ALUM TUBING ___

P01P 1 ¼” x 5” 5” PLATE 1-1/2” BOOM TO 1-1/2” MAST ___

G01P 1 GAMMA MATCH

Z08P 2 GAMMA STRAPS F/COAX CONNECTS ___

S42 1 FEMALE COAX CONN W/MOUNTING ___

HARDWARE BAG #1

U02 7 1-1/2” PLATED U-BOLTS ___

S02 7 1-1/2” PLATED SADDLES ___

N03 14 5/16” LOCK NUTS ___

HARDWARE BAG #2

BE1P 3 1-1/2” BOOM TO ELEMENT MOUNT ___

W58P 6 5/8” EXTRUDED ALUM CLAMPS ___

S21 11 10-24 ½” MACHINE SCREWS ___

PL2 6 .437 PLASTIC CAP - BLACK ___

N11 11 10-24 SQUARE NUTS ___

Z02P 2 1/2” GAMMA STRAPS ___

N12 4 #10 LOCKWASHER ___

PL4 1 1-1/2” PLASTIC CAP - BLACK ___

PL4R 1 1-1/2” PLASTIC CAP – RED ___

1 INSTRUCTIONSHEET ___

1 WARRANTY SHEET/SAFETY SHEET ___

1 TIPSHEET ___

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 5/09

MAC0

M103C

ASSEMBLY INSTRUCTIONS

FIGURE 1 GENERAL INSTRUCTIONS

This drawing shows a view of the antenna assembled. The

M103C

may be used vertically or

horizontally. 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.

Upon completion of assembly, install the red plastic cap (PL4R) on the director end of the antenna,

and the blackplastic cap (PL4) on the reflector end. This will allow you to determine at a glance the direction

of transmit and receive.

FIGURE 2 BOOM ASSEMBLY AND MAST MOUNTING

To assemble the boom insert the swaged end of the l-1/2” O.D. boom section (T59P)

inches into

one end of the other l-1/2” O.D. boom section

(T28P).

The overall length of the boom should be about 11’

I’.

Center the boom-to-mast plate

(PO3P)

over the joint and clamp the boom sections together with the

U-

bolts, saddles and hardware as shown in detail 2A.

This antenna is designed for mounting on a l-1/2” O.D. heavy duty mast. Mount using

U-bolts, saddles and hardware as shown in detail 2B. l-1/2”

CAUTION.....

Take care to avoid any contact with overhead power lines when raising your antenna.

Serious or fatal injury could result.

FIGURE 3 ELEMENT ASSEMBLY AND MOUNTING

To assemble the elements, use (4) of the clamps (W58P) and

#lO

x l/2” screw and square nuts

(S2 1

,Nl

1) as shown in the element assembly detail. Insert a length of the l/2” O.D. unslotted tubing (TOlP)

into each end of the element sections. Adjust each end to the

“B”

dimensions and tighten the clamps. Check

the overall length (“A” dimension). Push a 437” plastic cap (PL2) on each end of the elements.

Mount the elements onto the boom using U-bolts, saddles, and hardware (U02, S02, NO 1, N02) too

fasten the boom-to-element clamp (BE

1P)

as shown in the element mounting detail. From the 72

”

to center

,end of the boom, measure in

5/8”

to the outside edge of the mounting hardware and fasten the director.

Refer

to Figure 1 for the spacing dimensions and fasten the driven element and reflector.

Line the elements up with the use of a level or any other workable method. Double check the spacing

dimensions and make sure the elements are centered in the boom-to-element clamps. Tighten all hardware

taking care to line the elements up with the use of a level. Check your measurements and make sure the

elements are centered on the boom.

TIGHTEN ALL HARDWARE SNUG; DO NOT CRUSH THE TUBING. CRUSHING GREATLY

WEAKENS THE TUBING.

Ml03C

ASSEMBLY INSTRUCTIONS

(continued)

FIGURE 4 GAMMA MATCH MOUNTING

Mount the gamma match (GOlP) to the driven element, using the gamma straps

(ZO2P,

ZO8P)

and

attaching hardware as shown. Attach your 52 ohm coaxial cable to the connector (S42) and dress along boom

and down the mast. The gamma is shown pointing down

this is to let water out.

ADJUSTING THE STANDING WAVE RATIO (SWR)

Refer to Figure 4. The dimensions given are approximate and should be used as a starting point. The

gamma match has 2 adjustments. First is the capacitor adjust and second is the slider adjust. Connect a SWR

bridge coax between your transmitter and the antenna and check the SWR. 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 one direction, then the other until a minimum

SWRreading

is obtained. If SWR

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” towards the boom. Now readjust the capacitor for minimum SWR.

You shouldnow be able to determine which direction to move the slider. Repeat the aboveproceduremoving

the slider in smaller increments until a satisfactory SWR is obtained. Tighten all hardware. Disconnect the

SWR bridge and reconnect your coaxial cable.

NOTE!

When assembling for vertical use, set antenna on a pole about 8 to 9 feet above the ground

horizontally and adjust SWR for 1.7. When you turn the antenna vertical and mount it on the tower, etc.,

the SWR will drop to 1.5 or less . This is good; QUIT!

M103C

PL4-BLACK

PLASTIC CAP

REFLECTOR’

-----.--7’

3’1,.Y

/13\-

GAMMA

MA&H

(SEE FIG. 4)

DRIVEN

ELEMENi

‘4’

1”

VERTICALLY POLARIZE1

.--*PL4R-

RED

PLASTIC CAP

“W

DIRECTION

RADIATION

DIRECTORA

PLI-BLACK

PLASTIC CAP

DIRECTION

,REFLECTOR

DRIVEN ELEMENT

PL4R

RED

PLASTIC CAP

GAMMA MATC

(SEE FIG. 4)

HORIZONTALLY POLARIZED

FOR

DETAILS

BOOM

ASSEMBLY

AND

MAST

MOUNTING,

SEE

FIG.

FOR

DETAILS

ELEMENT

ASSEMBLY

AND

MOUNTING,

SEE

FIG.

M103C

GENERALASSEMBLY

QGURE~J

---------------_---------e-w

-----------------------------.

T59P

BOOM SECTION PLATE

(SWAGED

END)

BOOM SECTION

CENTERED

BETWEE

U-BOLTS

DETAIL 2A

SADDLES,

316”

NUTS

;

&WASHERS (TYPICAL ,

(2) PLACES

/PPROXIM

T28

BOOM SECTION BOOM SECTION

l-1/2”

O.D. MAST

(DETAIL 2B)

U02, S02, NOI, N02,

l-1/2”

U-BOLTS

SADDLES, 5/16” NUTS

&WASHERS

I-

i300M

WITH

BOOM-TO-MAST

PLATE ATTACHED

---

BOOM ASSEMBLY

MAST MOUNITNG

CUSTOMER

FURNlSHEb

l-1/2”

O.D. MAST

DETAIL

---- ----- ------

------------/

M103C

NOI,

N02,,

Troubleshooting Tips

at the end

of this instruction booklet before

assembling elements.

(SLOTTED END)

(UNSLOTTED END)

ELEMENT ASSEMBLY DETAILS ELEMENT MOUNTING DETAIL

/TO1

W58P

TO1

PL2

NOTE! Assemble for the middle of the desired channels, that is 27.200 for

regular channel

CB’s

as this is channel 20.

29.400/29.599

16’-11”

5’s5.5”

16’-1”

5’-0.5”

15’-4”

4’-8”

29.600/29.799

16’-

10”

5’-5” 16’-0”

5’-0” 15’-3”

4’-7.5”

29.800/30.000

16’-9”

5’s4.5”

15’-10”

4’-11”

15’-2” 4’-7”

ELEMENT ASSEMBLY &MOUNTING

M103C

THESE DIMENSONS ARE APPROXIMATE.

REFERTO THEINSTRUCTIONS ON ADJUSTINNG THE

S.W.R TO DETERMINE EXACT

SE’l-l-INGS.

THERE

ARE2 SEPARATEGAh4MAADJUSTMENTS, l.CAPACI-

TOR 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.

S21,

Nil,

N12-7

#IO-24

l/2”

SCREWS

LK. WSHRS

SQ.

NUTS

S21,

Nil,

N12

#10-24 x

112”

SCREWS

LK. WSHRS

SQ.

‘--/&---

318”

24 NUT\

318

STAR-e

WASHER

ZO2P

GAMMA STRAPS

(SLIDER)

COAX.

CABLE

(CUSTOMER

FURNISHED)

3/8 PLASTIC SHOULDER

WASHER

3/8 FLATWASHER

GO1 P GAMMA MATCH

GAMMA MATCH MOUNTING

@m3

Ml03C

Mount the gamma match (GO

1P)

to the driven element, using the gamma straps (202P,

ZOSP)

and

attaching hardware as shown. Attach your 52 ohm coaxial cable to the connector (S42) and dress along boom

and down the mast. The gamma is shown pointing down

this is to let water out.

ADJUSTING THE STANDING WAVE RATIO (SWR)

Refer to Figure 4. The dimensions given are approximate and should be used as a starting point.*

The gamma match has 2 adjustments. First is the capacitor adjust and second is the slider adjust. Connect

a SWR bridge coax between your transmitter and the antenna and check the SWR. If adjustment is required,

loosen the clamp on the gamma match and the screws holding the slider (gamma straps

(202P)).

Next move

the capacitor adjustment first one direction, then the otheruntil

aminimum

SWRreading

is obtained. If SWR

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” towards the boom. Now readjust the capacitor for minimum SWR.

You shouldnow be able to determine which direction to move the slider. Repeat the above procedure moving

the slider in smaller increments until a satisfactory SWR is obtained. Tighten all hardware. Disconnect the

SWR bridge and reconnect your coaxial cable.

M103C

Installing and rigging towers, masts and antennas require specialized skills and experience. Information

supplied by M

assumes that all products will be installed by personnel having these skills and have installed

similar products before. No one should attempt to install towers or masts without these knowledgeable skills.

assumes no liability if faulty or dangerous installation practices are used. There are available, trained

and experienced personnel to assist in installation, maintenance, or disassembly. Contact your local installer if

consultation or assistance is required.

All tower and antenna installations should be thoroughly inspected at least twice a year by qualified,

experienced, and trained personnel to insure proper performance and safety standards.

An additional warning precaution is given to be careful of surrounding high voltage power wires and other

electrical hazards during installation of your tower, rotor, or antenna.

Revised 09/12/10

Antennas is a Division of Charles Electronics, LLC

www.macoantennas.net

(815) 244-3500

Do not erect a tower, rotor, or antenna during an electrical

storm, rainstorm, or when lightning is a possibility.

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