CUSHCRAFT A449-6S Assembly And Installation Manual

70 centimeter fm yagi antenna 440-450 mhz

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ASSEMBLY AND INSTALLATION
A449-6S
70 CENTIMETER FM YAGI ANTENNA
440-450 MHz
COMMUNICATIONS ANTENNAS
951425 (7/93)

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Summary of Contents for CUSHCRAFT A449-6S

  • Page 1 ASSEMBLY AND INSTALLATION A449-6S 70 CENTIMETER FM YAGI ANTENNA 440-450 MHz COMMUNICATIONS ANTENNAS 951425 (7/93)
  • Page 2: System Grounding

    MOUNTING The A449-6S 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 any of the single beams. 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

    A449-6S MASTER PARTS LIST PART # DESCRIPTION QUANTITY PART # DESCRIPTION QUANTITY 010011 8-32 stainless steel hex nut 013402 5/16" (.8 cm) stainless steel flat washer 190026 7/8" x 1-1/2" (2.2 x 3.8 cm) mounting bracket 010405 4-1/2" x 2-7/16" (11.4 x 6.2 cm) stainless steel U-bolt...
  • Page 4: Element Assembly

    A449-6S #2 - ELEMENT ASSEMBLY Slide the four pieces of the Reddi-Match assembly (RR, PT, RT, 251) together (figure B). Assemble the tuning strap onto the element tube (EB) using the two Reddi-Match clamps (921), lock washers (41), flat washers (941), and hex nut (11). Slide the Reddi-Match assembly through the tuning clamp assembly.
  • Page 5: Mast Mount

    This antenna is designed for use with 50 Ohm coaxial cable terminated with a PL-259 connector. Any length of feedline can be used with your A449-6S. The shortest length of cable will have the least loss. A connector boot is included for use with your new antenna. Slide the boot over the cable before attaching your PL-259 (figure E).
  • Page 6 A449-6S. The shortest length cable will have the least loss. FIGURE G #6 - STACKING The A449-6S may be stacked in arrays for improved radiation patterns and increased gain. When stacking 2 antennas use the Cushcraft A449-VPKS stacking kit. The kit consists of a phasing harness, aluminium stacking boom and the associated hardware to mount the two A449-6S's.
  • Page 8 Cushcraft Corporation, P.O. Box 4680, Manchester, New Hampshire 03108, warrants to the original consumer purchaser for one year from date of purchase that each 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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