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Summary of Contents for CUSHCRAFT A270-6S
- Page 1 ASSEMBLY AND INSTALLATION A270-6S 2 METER/70 CM YAGI ANTENNA 144-148/430-450 MHz COMMUNICATIONS ANTENNAS 951453 (3/95)
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Page 2: System Grounding
MOUNTING The A270-6S mast mount bracket will take up to a 2" (5.1 cm) O.D. mast. A 1-1/4" (3.17 cm) television type tubing is satisfactory for a single A270- 6S beam. A good heavy-duty antenna rotator will provide the best service and longest life. Often it is desirable to mount several antennas on one mast. -
Page 3: Master Parts List
A270-6S MASTER PARTS LIST PART # DESCRIPTION QUANTITY PART # DESCRIPTION QUANTITY 010009 8-32 x 5/8" (1.6 cm) stainless steel machine screw 7/8" x 33-1/2" (2.2 x 85.1 cm) aluminum tubing 010011 8-32 stainless steel hex nut 190023 Connector bracket, small 41"... - Page 4 A270-6S #2 - REDDI-MATCH ASSEMBLY Assemble the driven element tubes (EC & Back FIGURE B ED) and connector brackets (23 & 43) to the boom at the positions shown in figure D using the hardware shown in figure B. Note that both connectors point towards the back of the boom.
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Page 5: Element Assembly
A270-6S #3 - ELEMENT ASSEMBLY FIGURE C 2 Meter Sort the elements by size using Table A. (EC and ED have already 70 cm Element been installed.) The cutting tolerance on these elements is ±1/16" (.16 Element Back cm). Attach each element to the boom per figure C referring to figure D for proper location. -
Page 6: Mast Mount
A270-6S #4 - FEEDLINE HARNESS Slide back all four vinyl boots on the feedline harness (FL) to expose the male PL-259 coaxial connectors. Unthread both connectors from FIGURE E the coaxial T-connector. Apply silicone grease (116) to the outer Back threads of the in-line connectors on the T-connector and re-attach both coaxial male connectors to the T-connector. -
Page 7: Specifications
A270-6S #6 - FEEDLINE Tape your feedline down the mast (figure G). Any length of feedline can be used with your A270-6S. The shortest length cable will have the least loss. Before installing your connector, slide boot (115) over your feedline. - Page 8 Cushcraft antenna is free of defects in material or workmanship. If, in the judgement of Cushcraft, any such antenna is defective, then Cushcraft Corporation will, at its option, repair or replace the antenna at its expense within thirty days of the date the antenna is returned (at purchasers expense) to Cushcraft or one of its authorized representatives.
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