KJM A860-V User manual

A860-V
MARINE VHF
ANTENNA
Installation Guide

Page 2
KJM is dedicated to providing the finest in shipboard equipment. Our products are built to withstand the harsh marine
environment, and are designed by people with over three decades of experience in the marine industry.
Please read the following pages before attempting installation to ensure complete understanding of the A860-V
Marine VHF Antenna.
FEATURES
White 8 Foot marine band VHF antenna with 6dB Gain
1"-14 stainless steel ferrule
Brass radiators for maximum transmit and receive performance
Built-in 20’ of low loss RG-8X and terminated with FME (mini UHF) connector
ACCESSORIES (included)
Adaptor FME male PL259 male M100 FME
to PL-259 male solder connector Ratchet Mount Double-Male Adapter
INSTALLATION
FCC Information:
The antenna must me located at least 3’ away from passengers in order to comply with FCC RF exposure requirements.
For best performance:
The antenna should be mounted as high as possible.
Keep the antenna away from large metal objects and other radiating devices like RADAR and other antennas.
The A860-V Antenna is supplied with 20 feet of built-in RG-8X low loss coaxial cable with pre-installed FME
connector on the termination for maximum radiation and interference rejection.
Do not shorten the 20’ cable; instead simply coil and tie-wrap the excess cable in a secure location.
The cable may be extended using a double-male FME connector.
Use RG-8X or RX213/U to extend the length.
Note: It may be necessary to remove one FME connector to be able to fit through the cable guide hole on a ratchet mount.
If this is the case, solder the PL-259 connector supplied with the antenna using the instruction below as guide:
Fig.1
Trim cable to dimensions shown.
Slide crimp ferrule and shrink sleeve.
Braid wires and inner conductor.
ACCESSORIES (not included)

Page 3
Fig.2
a) Insert assembly into connector body and push the crimp ferrule onto the cable
braid wires.
b) Crimp shield layer by using crimping tools (0.311in.)
c) Solder the cable inner conductor into pin
Fig. 3
Heat shrink sleeve rear of connector and down onto cable jacket using hot air
gun.
SPECIFICATIONS
FREQUENCY RANGE
156 - 162 MHz
GAIN AVERAGE
6 dB
IMPEDANCE
50 ohms
POLARIZATION
Vertical
ELEMENTS
Brass and copper
SWR at 156.8MHz
1.3:1
DC GROUND
Yes
RADOME
Polished polyurethane
CONNECTOR
Pre-installed FME connector, connects to PL-259 adapter
FERRULE
1"-14 threaded stainless steel
CABLE LENGTH / TYPE
20' built-in RG-8X with a pre-installed FME connector
Performance specifications are nominal and unless otherwise indicated, are subject to change without notice.
WARRANTY / CONTACT
KJM warrants its products to be free of defects in materials and workmanship for 5-years.
KJM's obligation under this warranty is limited to repair or replace defective products. No
material will be repaired or replaced without written authorization from KJM. Repair or
replacement will be made only after an examination indicates defective material or
workmanship at time of manufacture. KJM is in no event liable for consequential damages,
installation costs or other costs of any nature incurred as a result of the use of the products
manufactured by KJM, whether used in accordance with instructions or not. All shipping costs
on returned material are the responsibility of the purchaser. KJM is not liable for repair or
replacement of any product damaged by lightening, other natural phenomenons or incorrect
installation including reverse polarity connections. This warranty is in lieu of all others, either
expressed or implied. Proof of purchase is required.
KJM MARINE
7137 24TH Court East
Sarasota, FL 34243
[e-mail]