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3

Assemble the elements per Figure B.  First place a worm clamp (410)
over the slotted ends of all EC, ED, and EE tubes.  Insert the traps (TA)
into the slotted ends of the tubing.  Make sure the arrow on the trap faces
the slotted tubing.

Place the worm clamps (411) on both slotted ends of the EB tubes
(element 2).  Slide the end with the screw hole of the EB tube onto the
center insulator (96) as shown in Figure C.  Align the screw holes in the
tubing with those in the insulator.  Place an 8-32 screw (123) through the
tubing and insulator hole and fasten it in place with nuts (11) and washers
(41).  Tighten all nuts. Insert the ED tubes into the EB tubes and tighten
the worm clamps.

Place worm clamps (410) at both slotted ends of the EF tubing.  Slide
one end onto the TA traps.  Attach the TC traps to the other end of tube
EF on elements 1 and 2.  Attach the TB traps on element 3.  Slide tube
EG into the ends of all elements and secure with worm clamps (409).
Place end caps (53) onto ends.  Set dimensions according to the desired
band using Chart 1 and Chart 2 for reference.  Tighten all clamps.

4

#2 Element Assembly

Chart 2

EA

ALUMINUM

1-1/8" x 72"

2

TUBING

(2.9 x 182.9cm)

EB

ALUMINUM 

1-1/18" x 36"

2

TUBING

(2.9 x 91.4cm)

EC

ALUMINUM 

1" x 67"

2

TUBING

(2.5 x 170.2cm)

ED

ALUMINUM

1" x 65"

2

TUBING

(2.5 x 165.1cm)

EE

ALUMINUM

1" x 46-1/2"

2

TUBING

(2.5 x 188.1cm)

EF

ALUMINUM

1" x 5-1/4"

6

TUBING

(2.5 x 13.3cm)

EG

ALUMINUM

1/2" x 35-7/8"

6

TUBING

(1.3 x 91.1cm)

TA

TRAP

10 METER

6

TB

DIRECTOR

15 METER

2

TRAP

TC

DRIV & REFL

15 METER

4

TRAP

11

010011

HEX

#8-32

2

NUT

41

011941

SPLIT

#8

2

LOCK WASHER

53

050053

BLK PLASTIC

1/2"

6

CAP

(1.3cm)

96

122096

FIBERGLASS

10"

1

INSULATOR

(25.4cm)

123

010123

MACHINE

#8-32 x 1-1/2"

2

SCREW

(3.8 cm)

409

030409

SS WORM

11/16"

6

CLAMP

(1.7cm)

410

030410

SS WORM

1"

18

CLAMP

(2.5cm)

411

030411

SS WORM

1-3/8"

8

CLAMP

(3.5cm)

KEY        P/N                     DISPLAY                         DESC                         SIZE                  QTY

TC

TA

TB

D1

D2

D3

#1

#2

#3

EG

410

EE

EA

411

410

TA

TB

409

53

411

EE

410

TA

TB

410

EF

EF

A3

410

3/8" min
(.95 cm)

B3

C3

TA

TA

TC

TC

3/8" min
(.95 cm)

3/8" min
(.95 cm)

B3

410

3/8" min
(.95 cm)

A3

C3

EB

411

ED

410

EF

EG

411

410

410

409

53

96

A2

3/8" min
(.95 cm)

B2

3/8" min
(.95 cm)

C2

TA

TC

EB

411

ED

410

EF

EG

411

410

410

409

A2

3/8" min
(.95 cm)

3/8" min
(.95 cm)

C2

53

B2

C1

EG

409

EF

410

410

410

EC

EA

411

A1

TA

TC

C1

EG

409

EF 410

410

410

EC

411

A1

53

3/8" min
(.95 cm)

B1

3/8" min
(.95 cm)

3/8" min
(.95 cm)

B1

3/8" min
(.95 cm)

FIGURE B

Chart 1

#1 Reflector

A1

B1

C1

D1

A2

B2

C2

D2

A3

B3

C3

D3

7' 10"

6-1/4"

3' 1"

26'  8-1/2"

6'  9-1/4"

5-3/4"

3'  1-1/2"

24'  7"

6'  2-3/4"

5 -3/4"

2'  11"

23'  1"

238.8 cm

15.9 cm

94.0 cm

814 cm

206.4 m

14.6 cm

95.3 cm

749 cm

190.0 cm

14.6 cm

88.9cm

704 cm

8'  1/2"

6-1/2"

3' 1"

27'  2"

6'  11-1/2"

6"

3'  1-1/2"

25'

6'  5"

6"

2'  11"

23'  6"

245.1 cm

16.5 cm

94.0 cm

828 cm

212.1 cm

15.2 cm

95.3 cm

762 cm

195.6 cm

15.2 cm

88.9 cm

716 cm

8'  2-3/8"

7-3/4"

3' 1-1/2"

27'  9-1/4"

7'  7/8"

7"

3'  1-1/2"

25'  4-3/4"

6'  6-1/8"

7"

2'  11-1/2"

23'  11-1/4"

250 cm

19.7 cm

95.3 cm

883 cm

215.6 cm

17.8 cm

95.3 cm

774 cm

198.4 cm

17.8 cm

90.2 cm

730 cm

#2 Driven Element

#3 Director

53

EG

409

FIGURE C

CW

53

Center

Line

EB

96

41

11

123

411

A3S

A3S

3/8" min
(.95 cm)

3/8" min
(.95 cm)

3/8" min
(.95 cm)

Center

Phone

BAND

20M

15M

10M

Phone

14.25

21.35

28.60

Center

14.20

21.275

28.350

CW

14.10

21.125

28.150

  Center Frequency

     (MHz)

Summary of Contents for A3S

Page 1: ...A3S 20 15 10 MeterBeam ASSEMBLY AND INSTALLATION INSTRUCTIONS 951278 8 95 COMMUNICATIONS ANTENNAS ...

Page 2: ...her extensive ground system directly at the base of the tower or mast using at least 10AWG ground wire and noncorrosive hardware For details and safety standards consult the National Electrical Code You should also use a coaxial lightning arrester Cushcraft offers several different models such as LAC 1 LAC 2 and the LAC 4 series ASSEMBLY Assemble your antenna by following the directions and illust...

Page 3: ...e 2 41 011941 8 split lock washer 6 1 BOOM ASSEMBLY MASTER PARTS LIST BA BB BB 413 413 2 11 41 BA BB BB 120 413 120 413 11 41 46 46 FIGURE A KEY PART QTY 46 050046 1 1 2 3 8 cm black plastic cap 2 53 050053 1 2 1 3 cm black plastic cap 6 58 173658 3 1 2 8 9 cm V block 2 63 170063 2 5 1 cm V block 2 84 010084 1 4 6 cm lock washer 6 85 010085 1 4 6 cm hex nut 6 96 122096 10 25 4 cm fiberglass insula...

Page 4: ...EFL 15 METER 4 TRAP 11 010011 HEX 8 32 2 NUT 41 011941 SPLIT 8 2 LOCK WASHER 53 050053 BLK PLASTIC 1 2 6 CAP 1 3cm 96 122096 FIBERGLASS 10 1 INSULATOR 25 4cm 123 010123 MACHINE 8 32 x 1 1 2 2 SCREW 3 8 cm 409 030409 SS WORM 11 16 6 CLAMP 1 7cm 410 030410 SS WORM 1 18 CLAMP 2 5cm 411 030411 SS WORM 1 3 8 8 CLAMP 3 5cm KEY P N DISPLAY DESC SIZE QTY TC TA TB D1 D2 D3 1 2 3 EG 410 EE EA 411 410 TA TB ...

Page 5: ...ions for proper placement of elements on the boom Level the elements and tighten all the nuts on the U bolts that hold the elements on the boom per Figure G Check all traps to make sure that the arrows are pointed towards the boom and the drain holes are facing the ground so that moisture will not build up in the traps 3 ELEMENT MOUNTING 5 KEY P N DISPLAY DESC SIZE QTY 33 190033 BACKING 2 PLATE 84...

Page 6: ...ed as shown in Figure H using the solder terminals 453 provided A 1 1 balun may be installed at the feedpoint but it is not required We recommend using an RF choke made from 8 turns of RG8 U coaxial cable with 6 inch 15 3 cm diameter as shown here Important Do not use foam dielectric coax for your RF Choke because when the coax is wound in a coil the center conductor may migrate away from the cent...

Page 7: ...enna is returned at purchasers expense to Cushcraft or one of its authorized representatives This warranty is in lieu of all other expressed warranties any implied warranty is limited in duration to one year Cushcraft Corporation shall not be liable for any incidental or consequential damages which may result from a defect Some states do not allow limitations on how long an implied warranty lasts ...

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