CUSHCRAFT A144-20T Assembly And Installation Manual Download Page 3

A144-20T

9

010009

8-32 x 5/8" (1.6 cm) stainless steel machine screw

2

11

010011

8-32 stainless steel hex nut

24

23

190023

Connector bracket

2

26

190026

7/8" x 1-1/2"  (2.2 x 3.8 cm) mounting bracket

20

28

190028

Aluminum half washer

18

41

011941

#8 stainless steel lock washer

26

45

321045

1/2" x 1/2" (1.3 x 1.3 cm) aluminum spacer

4

53

050053

1/2" (1.3 cm) black plastic cap

4

61

050061

7/8" (2.2 cm) black plastic cap

2

70

190070

4" x 6" (10.2 x 15.2 cm) formed mast plate

1

84

010084

1/4" (.63 cm) stainless steel split lock washer

4

85

010085

1/4" (.63 cm) stainless steel hex nut

4

104

010104

1/4" (.63 cm) stainless steel flat washer

4

115

050115

Connector boot

2

116

240116

Silicone package

2

118

010118

5/16" (.8 cm) stainless steel hex nut

4

119

010119

5/16" (.8 cm) stainless lock washer

4

120

010120

8-32 x 2" (5.1 cm) stainless steel machine screw

2

231

010231

8-32 x 1-3/4" (4.4 cm) stainless steel machine screw

18

251

050251

3/8" (1 cm) white plastic cap

2

326

290326

Danger label

1

401

010401

3" x 1-3/4" (7.6 x 4.4 cm) stainless steel U-bolt

2

2

MASTER PARTS LIST

KEY

PART #

DESCRIPTION

QUANTITY

KEY

PART #

DESCRIPTION

QUANTITY

404

010404

3-1/4 x 2-7/16 (8.3 x 6.2 cm) stainless steel U-bolt

2

410

030410

1" (2.5 cm) stainless steel worm clamp

2

921

200921

Reddi-Match clamp

4

941

360941

#8 aluminum flat washer

4

BA

1" x 48" (2.5 x 122 cm) aluminum tubing slotted both ends 1

BB

7/8" x 50" (2.2 x 127 cm) aluminum tubing

1

BC

7/8" x 50" (2.2 x 127 cm) aluminum tubing

1

H1, V1

40-5/8" (103.2 cm) aluminum rod

2

H2, V2

39-1/4" x  1/2" (99.7 x 1.3 cm) tubing drilled in center

2

H3, V3

37-3/4" (95.9 cm) aluminum rod

2

H4, V4

36-1/2" (92.7 cm) aluminum rod

2

H5, V5

35-3/8" (89.9 cm) aluminum rod

2

H6, V6

34-3/8" (87.3 cm) aluminum rod

2

H7, V7

33-3/4" (85.7 cm) aluminum rod

2

H8, H9, V8, V9

32-3/4" (83.2 cm) aluminum rod

4

H10, V10

31-1/8" (79.1 cm) aluminum rod

2

HN1

RG59 phasing harness

2

HN2

RG58 phasing harness

PT

3/16" x 4-1/2" (.48 x 11.4 cm) poly tube

2

RR

3/16" x 4" (.48  x 10.2 cm) Reddi Match rod

2

RT

3/8" x 6-1/2" (.9 x 16.5 cm) aluminum tube

2

HN1

RG59 phasing harness

2

HN2

RG58 phasing harness

2

Summary of Contents for A144-20T

Page 1: ...951452 5 97 C O R P O R A T I O N ASSEMBLY AND INSTALLATION A144 20T 2 METER TWIST YAGI ANTENNA 144 148 MHz Downloaded by RadioAmateur EU ...

Page 2: ... will provide the best service and longest life Often it is desirable to mount several antennas ononemast Tokeeppossibleinteractiontominimum placeyourantennasasfarapartasyoucan TheA144 20Ttransmitsandreceiveshorizontal and vertical polarization Vertical polarization is normally for FM and packet while horizontal polarization is normally for SSB and CW SYSTEM GROUNDING Direct grounding of the anten...

Page 3: ...m white plastic cap 2 326 290326 Danger label 1 401 010401 3 x 1 3 4 7 6 x 4 4 cm stainless steel U bolt 2 2 MASTER PARTS LIST KEY PART DESCRIPTION QUANTITY KEY PART DESCRIPTION QUANTITY 404 010404 3 1 4 x 2 7 16 8 3 x 6 2 cm stainless steel U bolt 2 410 030410 1 2 5 cm stainless steel worm clamp 2 921 200921 Reddi Match clamp 4 941 360941 8 aluminum flat washer 4 BA 1 x 48 2 5 x 122 cm aluminum t...

Page 4: ...rd the center of the boom Assemble the Reddi Match components RR PT RT and 251 Set them aside for the moment Loosely attach the Reddi Match straps 921 to the driven elements H2 V2 as shown Slide the Reddi Match assembly through the Reddi Match straps and secure the rod RR to the connector Use washer 41 and nut 11 Next slide the poly tube PT to the flattened end of the rod Figure C 2 Set the dimens...

Page 5: ... and tighten the worm clamps Push the end caps 61 onto the ends of the boom KEY P N DISPLAY DESC SIZE QTY FIGURE B 6 5 16 16 cm 1 7 16 3 65 cm 12 11 16 32 2 cm 17 13 16 45 2 cm BA BC BA BB BC 410 61 410 61 12 7 16 31 6 cm 1 7 16 3 65 cm BB 11 27 9 cm Make a mark here Make a mark here 5 12 7 cm 20 3 8 51 75 cm 15 1 8 38 42 cm 132 335 3 cm FRONT BACK FIGURE A 15 38 1 cm 16 3 8 41 6 cm FRONT BACK Vie...

Page 6: ...1 010401 SS 3 x 1 3 4 2 U BOLT 7 6 x 4 4 cm 404 010404 SS 3 1 4 x 2 7 16 2 U BOLT 8 3 x 6 2 cm FIGURE E 115 050115 CONN 2 BOOT 116 240116 SILICONE 2 PACKAGE KEY P N DISPLAY DESC SIZE QTY SILICONE GREASE cushcraft 4 FEEDLINE This antenna is designed for use with 50 Ohm coaxial cable termi nated with a PL 259 connector Any length of feedline can be used with your A144 20T The shortest length of cabl...

Page 7: ...clusions or limitations of incidental or consequential damages so the above limitation and exclusion may not apply to you This warranty gives you specific legal rights and you mayalsohaveotherrightswhichvaryfromstatetostate This warrantydoesnotextendtoanyproductswhichhavebeensubjecttomisuse neglect accidentorimproper installation Any repairs or alterations outside of the Cushcraft factory will nul...

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