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CUSHCRAFT A270-10S - User Manual

CUSHCRAFT A270-10S
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951377 (1/94)
C O R P O R A T I O N
ASSEMBLY AND INSTALLATION
A270-10S
2 METER/70 CM YAGI ANTENNA
144-148/430-450 MHz
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Summary

Location and Mounting

Location

Choose an open location to minimize interference from surrounding objects like trees and power lines.

Mounting

Mounting bracket accommodates up to 2" O.D. mast; consider rotator and antenna spacing for multiple antennas.

System Grounding

Direct grounding is crucial for lightning, static, and high voltage protection, using #10AWG wire and a coaxial arrester.

Assembly Procedures

Boom Assembly

Assemble the boom by sliding tube BB into tube BA, securing with a machine screw and worm clamp.

Reddi-Match Assembly

Attach driven element tubes and connector brackets, then the Reddi-Match sub-assemblies using hardware.

Element Assembly

Sort elements by size and attach them to the boom according to figures C and D for proper positioning.

Feedline Harness

Prepare feedline connectors by applying silicone grease to threads and outer shells, then sealing with boots.

Mast Mount

Mount the antenna to the mast using the provided plate and U-bolts, ensuring the danger label is visible.

Feedline Connection

Secure feedline to mast, apply silicone grease to T-connector and PL-259 threads, and seal with boots.

Specifications and Warranty

Antenna Specifications

Details include boom length, element length, turning radius, gain, front-to-back ratio, SWR, power, and beamwidth.

Limited Warranty

One-year warranty against defects in material or workmanship; excludes misuse, neglect, or improper installation.

CUSHCRAFT A270-10S Specifications

General IconGeneral
TypeYagi
Gain10 dBd
Number of Elements10
VSWR1.5:1
Impedance50 Ohms
PolarizationHorizontal
Radiation PatternDirectional

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