Arrow Antenna GP 52 User manual

911 E. Fox Farm Rd. #2
Cheyenne, WY 82007 ArrowAntennas.com
Simply the Best [phone]
[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.
3
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