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EA

ALUMINUM

1-1/8" x 72"

1

TUBING

(2.9 x 182.9cm)

EB

ALUMINUM 

1-1/18" x 36"

2

TUBING

(2.9 x 91.4cm)

EC

ALUMINUM 

7/8" x 36""

1

TUBING

(2.2 x 91.4cm)

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"

4

TUBING

(2.5 x 13.3cm)

EG

ALUMINUM

1/2" x 35-7/8"

4

TUBING

(1.3 x 91.1cm)

EH

ALUMINUM

3/4" x 48"

2

TUBING

(1.9 x 121.9cm)

EJ

ALUMINUM

5/8" x 48"

2

TUBING

(1.6 x 121.9 cm)

EK

ALUMINUM

1-1/8" x 24"

1

TUBING

(2.9 x 121.9 cm)

EL

ALUMINUM

1-1/4" x 50"

2

TUBING

(3.2 x 127 cm)

EM

ALUMINUM

1-1/8" 72"

2

TUBING

(2.9 x 189.9 cm)

EN

ALUMINUM

1" x 24"

2

TUBING

(2.5 x 61.0 cm)

EP

ALUMINUM

1/2" x 48"

2

TUBING

(1.3 x 121.9 cm)

TB

DIRECTOR

15 METER

2

TRAP

TC

DRIV & REFL

15 METER

4

TRAP

TD

DRIV.

10 METER

2

TRAP

TE

DIRECTOR

10 METER

2

TRAP

11

010011

HEX

#8-32

2

NUT

27

050027

BLK PLASTIC

5/8"

2

CAP

(1.6 cm)

41

011941

SPLIT LOCK

#8

2

 WASHER

53

050053

BLK PLASTIC

1/2"

6

CAP

(1.3 cm)

95

122095

FIBERGLASS

10"

1

INSULATOR

(2.54 cm)

123

010123

SS MACHINE

8-32 x 1-1/2"

2

SCREW

(3.81)

409

030409

SS WORM

11/16"

8

CLAMP

(1.7 cm)

410

030410

SS WORM

1"

16

CLAMP

(2.5 cm)

411

030411

SS WORM

1-3/8"

8

CLAMP

(3.5 cm)

412

030412

SS WORM

1-1/2"

4

CLAMP

(3.8 cm)

Assembly of elements is straight forward as shown in
Figure B. Arrows on the traps point to the center of the
element.  Element #3 has a fiberglass insulator at its
center which is joined to tubes EB with a worm clamp
(411) and pinning screws (123) as shown in Figure C.
Set dimensions  to the desired band using Chart 1 and
Chart 2.  Tighten all clamps.

4

#2 Element Assembly

KEY        P/N                     DISPLAY                         DESC                         SIZE                  QTY

TD

TB

TC

TE

D4

EG

410

EE

EA

411

410

TE

TB

409

53

A4

410

C4

EF

B4

EG

410

EE

411

410

TE

TB

409

53

A4

410

C4

EF

B4

D1

TC

C1

EP

409

53

EL

EK

412

B1

411

410

412

EM

EN

TC

C1

EP

409

53

EL

412

B1

411

410

412

EM

EN

EC

27

410

409

EH

EJ

27

410

409

EH

EJ

D3

TD

TC

EB

411

ED

410

EF

EG

411

410

410

409

53

95

A3

C3

411

B3

TD

TC

EB

ED

410

EF

EG

411

410

410

409

53

A3

C3

B3

D2

A2

A2

FIGURE B

#2

#3

#4

A4S

EB

95

41

11

123

Chart 2

BAND

20M

15M

10M

Phone

14.25

21.325

28.60

Center

14.170

21.275

28.40

CW

14.10

21.15

28.15

  Center Frequency

     (MHz)

FIGURE C

Center

Line

Chart 1

#1 Reflector

B1

C1

D1

A2

D2

A3

B3

C3

D3

A4

B4

C4

D4

125-1/2"

46-1/2"

30' 8-1/4"

106-1/2"

17' 9"

78"

5-3/4"

38-1/4"

24' 2-1/2"

72-1/2"

7"

34-3/4"

22' 10-3/4"

3.188 m

1.181 m

9.354 m

2.705 m

5.41 m

1.981 m

14.6 cm

97.2 cm

7.379 m

1.842 m

17.8 cm

88.3 cm

6.979 m

128"

46-1/2"

31' 1-1/4"

107 1/2"

17' 11"

79"

5-3/4"

38-1/4"

24' 5-1/2"

74-1/2"

7"

34-3/4"

23' 3"

3.251 m

1.181 m

9.481 m

2.73 m

5.46 m

2.007 m

14.6 cm

97.2 cm

7.455 m

1.892 m

17.8 cm

88.3 cm

7.087 m

129-1/2"

46-1/2"

31' 4-1/2"

108-1/2"

18' 1"

82-1/2"

6-3/4"

38-1/4"

25' 1-1/2"

76-1/2"

7-1/2"

34-3/4"

23' 8"

3.289 m

1.181 m

9.563 m

2.756 m

5.51 m

2.09 m

17.1 cm

97.2 cm

7.658 m

1.943 m

19.0 cm

88.3 cm

7.214 m

#3 Driven Element

#4 Director

#2 Reflector

CW

Center

Phone

#1

A4S

3

Summary of Contents for A4S

Page 1: ...A4S 20 15 10 MeterBeam ASSEMBLY AND INSTALLATION INSTRUCTIONS 951279 8 98 C O R P O R A T I O N ...

Page 2: ...non corrosive 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 illustrations in steps 1 through 5 After the antenna is completely assembled verify dimensions and element spaci...

Page 3: ...4 2 5 x 61 0 cm slotted 2 one end EP Aluminum tubing 1 2 x 48 1 3 x 121 9 cm 2 1 BOOM ASSEMBLY A4S 2 FIGURE A KEY PART QTY TB 15 meter director trap 2 TC 15 meter driv refl trap 4 TD 10 meter driv trap 2 TE 10 meter director trap 2 11 010011 8 32 hex nut 6 27 050027 5 8 Black plastic cap 2 41 011941 8 Split lock washer 6 53 050053 1 2 Black plastic caps 6 63 170063 2 1 2 Machined aluminum V blocks...

Page 4: ...tor at its center which is joined to tubes EB with a worm clamp 411 and pinning screws 123 as shown in Figure C Set dimensions to the desired band using Chart 1 and Chart 2 Tighten all clamps 4 2 Element Assembly KEY P N DISPLAY DESC SIZE QTY TD TB TC TE D4 EG 410 EE EA 411 410 TE TB 409 53 A4 410 C4 EF B4 EG 410 EE 411 410 TE TB 409 53 A4 410 C4 EF B4 D1 TC C1 EP 409 53 EL EK 412 B1 411 410 412 E...

Page 5: ...he ground so that moisture will not build up in the traps 3 ELEMENT MOUNTING 5 118 010118 SS HEX 5 16 8 NUT 8 cm 119 010119 SS LOCK 5 16 8 WASHER 8 cm 156 190156 ALUMINUM 2 X 1 1 8 4 BRACKET 5 08 X 2 86 cm 405 010405 U BOLT 2 1 8 x 4 4 5 4 x 10 2cm 76 194 3 cm 94 240 0 cm TE TB TE TB TC TC 1 2 40 102 8 cm 1 2 1 2 TD TC TD TC 108 2 73m FIGURE D A4S 2 5 1 cm Important Drain holes in traps should all...

Page 6: ... is not required We recommend using an RF choke made from 8 turns of RG8U coaxial cable with 6 inch 15 2 cm diameter 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 center and detune your choke Attach th RF choke to the driven element using washers 41 and nuts 11 as shown in Figure H Be sure to tape...

Page 7: ...enna is returned at purchasers expense to Cushcraft or one of its authorized representatives This warrranty is in lieu of all other expressed warranties any implied warranty is limited in duration to one year Cushcraft Corporation shall not be liablefor 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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