Diamond HF6FX Instruction Sheet

The HF6FX is a 6m adjustable mono-band, 1/4 wavelength mobile antenna, optimized for 6m amateur band.
Tunable bandwidth 1.8 MHz from 50-54 MHz.
FREQUENCY:
GAIN:
POWER:
IMPEDANCE:
VSWR:
ELEMENT PHASING:
GROUNDING:
LENGTH:
WEIGHT:
MOUNT:
WARRANTY:
RECOMMENDED MOUNTS: K400C, K412C or K600M Trunk Mounts.
NOTE: THIS ANTENNA REQUIRES TUNING TO DESIRED OPERATING FREQUENCY. USE QUALITY VSWR
METER TO INSURE PROPER ADJUSTMENT. THE HF6FX REQUIRES PROPER VEHICLE GROUND. MOUNT-
ING LOCATION WILL AFFECT VSWR. NOT RECOMMENDED FOR MAGNET MOUNTS.
(1) Remove antenna from package and inspect contents to insure it is complete. Attach whip element assembly #990701
to matching coil assembly #990702. (Illustration 1 & 1A)
(2) Choose desired mounting location to insure maximum strength of mount, and proper vehicle ground to yield best
performance of antenna.
(3) Install antenna on vehicle. With quality VSWR meter, check VSWR for proper antenna tuning. Tuning adjustments
may be required to reach optimum VSWR.
Tuning of Antenna
Loosen element lock nut and slide antenna whip up or down. (Illustration 2 & 3) Tune until lowest VSWR is obtained at
desired center frequency. Tighten adjustment lock nut. Recommend using removable Locktite Threadlocker #242 or
similar product to insure proper fastening of setscrews and element assembly.
(Note: Mounting location and mounting structures will effect RF grounding and resonant frequency. If adjustment of whip
is necessary, adjust in 1/8-inch increments until desired resonant frequency is obtained.)
50-54 MHz Mobile Antenna
50-54 MHz
2.15 dBi
250 Watts
50 Ohms
1.5:1 (Nominal)
1/4 Wave
Required for optimum performance
44 1/4" (fully extended)
0.3 lbs. (130 g)
UHF MALE (PL259)
1 Year against defects in material or workmanship.

Installation Instructions

DIAMOND ANTENNA Products are distributed by RF PARTS COMPANY
435 S. Pacific Street • San Marcos, CA 92078 • (760) 744-0900
www.diamondantenna.net
HF6FX
Instruction Sheet

Specifications

1.5
1.0
–1.8 MHz fo +1.8 MHz