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AR-270B

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

P.O. BOX 4680, 48 PERIMETER ROAD, MANCHESTER, NH 03108 USA

603-627-7877 • FAX: 603-627-1764

SPECIFICATIONS

Model

          AR-270B

Frequency, MHz

144-148

430-450

VSWR 1.2:1 Typical
     2:1 Bandwidth in MHz

>4

>15

Gain, dB

5.5

7.5

Power Rating, Watts FM

250

250

Horizontal Radiation
     Pattern, Degrees

360

360

Height, ft (m)

7.7 (2.3)

Mast Size Range, in (cm)

1.25-2.0 (3.2-5.1)

Radial Length, in (cm)

6.75 (17.1)

Wind Load, ft

2

 (m

2

)

0.47 (0.044)

Weight, lb (kg)

2.4 (1.1)

LIMITED WARRANTY

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.  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 damages, so the above limitation and exclusion may not apply to you.  This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.  This  warranty does not extend to any products which
have been subject to misuse, neglect, accident or improper installation.  Any repairs or alterations outside of the Cushcraft
factory will nullify this warranty.

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Summary of Contents for AR-270B

Page 1: ...951374 10 93 C O R P O R A T I O N AR 270B DUAL BAND RINGO 70 CM 2 METER ASSEMBLY AND INSTALLATION ...

Page 2: ...zed beam antennas If you side mount this antenna on a tower it will require a short mast secured at two points The mast should be kept at least 1 4 wavelength or 20 inches 51 cm away from the tower SYSTEM GROUNDING Direct grounding of the antenna mast and tower is very important This serves as protection from lightning strikes and static buildup and from high voltage which is present in the radio ...

Page 3: ...ase tube Be very careful not to overtighten the radial rods or their locking nuts Overtightening may cause damage not covered by the warranty Attach aluminum brackets 26 to the base tube with self tapping screws 227 Affix danger label 326 as shown in Figure 1 Figure 2 Slide worm clamp 409 over the top tube of the base assem bly BA Insert the non slotted end of tube TA into BA Refer ring to figure ...

Page 4: ...ip the vinyl boot over the connector and against the connector bracket for a weather tight connection If you plan to install the antenna in a salty or corrosive environment you may want to consider coating it with a clear marine varnish or equivalent after it is as sembled 115 050115 CONNECTOR 1 BOOT 116 240116 SILICONE 1 PACKAGE 81 032881 WORM 3 2 CLAMP 7 6 cm KEY P N DISPLAY DESC SIZE QTY cushcr...

Page 5: ...ft 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 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 consequenti...

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