CUSHCRAFT A270-6S Assembly And Installation Manual Download Page 1 | Manualshive

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951453 (3/95)

ASSEMBLY AND INSTALLATION

A270-6S

2 METER/70 CM YAGI ANTENNA

144-148/430-450 MHz

COMMUNICATIONS ANTENNAS

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Summary of Contents for A270-6S

Page 1: ...951453 3 95 ASSEMBLY AND INSTALLATION A270 6S 2 METER 70 CM YAGI ANTENNA 144 148 430 450 MHz COMMUNICATIONS ANTENNAS ...

Page 2: ...ormally SSB and CW mount the A270 6S with the elements parallel to the ground SYSTEM GROUNDING Direct grounding of the antenna mast and tower is very important This serves as protection from lightning strikes static buildup and high voltage which is present in the radio equipment connected to the antenna A good electrical connection should be made to one or more ground rods or other extensive grou...

Page 3: ... Reddi Match clamp 4 941 360941 8 aluminum flat washer MASTER PARTS LIST KEY PART DESCRIPTION QUANTITY KEY PART DESCRIPTION QUANTITY 2 1 BOOM ASSEMBLY A270 6S To make sure that the elements are mounted on the boom in the proper sequence it is necessary to determine the front and back of the boom Figure A The four larger holes are the U bolt mounting holes and are located at the back of the boom BA...

Page 4: ... secure to the connector using washer 41 and nut 11 Set the distance between the connec tor bracket 43 and the strap 125 as shown in figure B and tighten the hardware AttachtheotherReddiMatchsub assembly RM2 to the other driven element ED using washer 41 and nut 11 Be sure to set the Reddi Match strap dimension shown in figure B Install end caps 53 on ends of elements EC and ED A270 6S FIGURE B 12...

Page 5: ...ts are on opposite sides of the boom 4 11 010011 SS 8 32 4 HEX NUT 26 190026 ALUMINUM 7 8 4 BRACKET 2 2 cm 28 190028 ALUMINUM 4 HALF WASHER 41 011941 SS LOCK 8 4 WASHER 231 010231 SS MACHINE 8 32 x 1 3 4 4 SCREW 4 4 cm KEY P N DISPLAY DESC SIZE QTY TABLE A ELEMENTS FIGURE D ELEMENT LENGTH KEY NO INCHES CM EA 1 41 104 1 EB 2 14 15 16 37 9 EC 3 38 96 5 ED 4 12 7 16 31 6 EE 5 12 1 16 30 6 EF 6 36 91 ...

Page 6: ... lengths of cable are equal Coat outer shells of connectors with silicone grease 116 Slide both vinyl boots over the PL 259 male connectors Make sure the boots butt against the connector brackets Tape the feedline harness as shown fig E KEY P N DISPLAY DESC SIZE QTY FIGURE E FIGURE F Mount the antenna to your mast using the U bolt bracket 32 and the hardware provided per figure E When you tighten ...

Page 7: ...a waterproof seal SPECIFICATIONS MODEL A270 6S Frequency MHz 144 148 430 450 No Elements 3 3 Forward Gain dBd 7 8 7 8 Front to Back Ratio dB 20 18 SWR 1 2 1 Typical 2 1 Bandwidth MHz 4 20 Power Rating Watts PEP 350 350 3 dB Beamwidth Degrees E Plane 66 66 H Plane 108 108 Boom Length ft m 2 8 85 Longest Element in cm 41 104 1 Turning Radius ft m 2 8 85 Mast Size Range in 1 25 2 0 cm 3 2 5 1 Wind Lo...

Page 8: ...ts 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 or exclusions or limitations of incidental or consequential dam...

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