Arrow Antenna GP 52 Manual de usuario

911 E. Fox Farm Rd. #2

Cheyenne, WY 82007 ArrowAntennas.com

Simply the Best (307) 222-4712

[email protected]

6 Meter ¼ Wave Ground Plane

Guarantee

No hassle refund

If you are not completely

satisfied with any ARROW

ANTENNA Product it can

be returned for a FULL

refund less shipping and

handling within 90 DAYS

of purchase date.

SIMPLY THE BEST

Model

GP 52

Ground Plane

We don’t invent antennas.

We simply build them better.

Cutting Chart

For the Driven Element Only.

Do NOT Cut the Ground Radials.

55” = 51.0 MHz

54” = 52.0 MHz

53” = 53.0 MHz

52” = 54.0 MHz

1.2:1 Bandwidth is aobut 1 MHz.

2.0:1 Bandwidth is almost 5 MHz.

2.0

50 MHz 51.0 MHz 52.0 MHz 53.0 MHz 54.0 HMz

1.9

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1.0

54.0

MHz 53.0

MHz 52.0

MHz 51.0

MHz

Part # Price Model GP 52 Parts List

GP5211 $10.00 3/8" X 55" Element with Coupling Nut and End Cap

GP1262 $5.00 1/4" X 55 ½" Ground Radial with End Cap (Ground Radial)

GP00013 $15.00 1 1/2" X 2 1/2" X 2 1/2" Assembly / Mounting Bracket

52S206 $4.00 Saddle Clamp for mounting to a Mast up to 1 1/2" (2 for $4.)

J14606 $1.00 Nylon Shoulder Washer for Antenna Mount (2 for $1.)

J14605 $3.00 SO-239 Stud & Nylon Shoulder Washer

25C275 $1.00 2 3/4" Bolt, Nut & Lock Washer for saddle (all Stainless)

(Please add $8.00 S & H per order. Thank you.)

Be sure to include the Coupling Nut in the measurement.

SWR Plot with Vertical

Element length 55 inches.

Assembly Instructions

Using a 7/16” wrench, loosen the three 1/4” bolts and insert the four ground radials. Be sure they are inserted all the way in and

bottomed out. Snug the four bolts making sure the radials are angled down the same. After the radials are seated correctly, tighten the

four bolts.

Install the 55” element in the center hole of the Assembly / Mounting Bracket with the nylon shoulder washer under the element as

shown. Tighten with 5/8" wrench.

SWR is basically a way of testing the impedance of your Antenna System. The Antenna System is two parts.

1. Coax and connectors.

2. Antenna.

Before you can test or tune the Antenna, you have to test the other 1/2 of the system first, the Coax &

Connectors.

Brand New Coax can be Defective or Damaged.

To test the Coax you will need a 50 ohm Dummy Load and an SWR Meter or Antenna Analyzer.

Note: Some of the MFJ 269 Analyzers do not work right. - - (eHam reviews on the MFJ269) - - The MJF 259B

works Great.

Connect the Dummy Load to the end of the coax instead of the Antenna. Connect SWR Meter or Antenna

Analyzer to the other end. Check the SWR on all frequencies. SWR should be 1.0:1 on all frequencies. If the

SWR is not 1.0:1 or if the SWR varies with frequency, then the Coax is Not up to the task.

Important: Some Coax can test fine on VHF but not at UHF.

Also a known problem with some remote Antenna Switches.

Remember the ground radials must be

attached and secure before installing the

vertical element.

Caution: Do NOT over-tighten the 55”

element.

0 ft./lb. max.

Coupling Nut ---------

Shoulder Washer------

------3/8 x 24

------SO-239

55” Element ---------

--------- Assembly / Mounting Bracket

Ground Radial --------

Saddle ---------

CHECKLIST FOR OUR SHIPPING DEPARTMENT

GP52

___3/8" x 55" Element with Coupling Nut and End Cap

___4 @ 1/4" x 55 1/2" Ground Radials with End Cap

___1 1/2" x 2 1/2" x 2 1/2" Assembly / Mounting Bracket – has 4

bolts and 1 hole.

___Saddle Clamp

___SO-239 Stud & Nylon Shoulder Washer

___2 @ 2 3/4" Bolts, Nuts & Lock Washers for saddle

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