MFJ -1754 Instructions

MFJ-1754 Dual Band Antenna

INTRODUCTION:

The MFJ-1754 is designed for use on the 2 meter and the 70 centimeter bands. On the 2 meter band the MFJ-1754
behaves as a vertical 1/4 wave antenna, however on 70 centimeter band the MFJ-1754 is a gain antenna. It is
constructed of a 1/2 wave over a 1/4 wave antennas, which gives it a higher gain for extra long range. The MFJ-1754
uses a sloped ground plane to ensure a low SWR across both bands and, to minimize the feed line radiation which
can result in pattern distortion and skewing.

CHOOSING A LOCATION FOR THE ANTENNA

The MFJ-1754 can be mounted on any 1" to 1 1/2" mast (conductive or non conductive.)
The best performance on receiving and transmitting will be obtained by mounting the antenna as high as possible in a
clear location above or away from buildings, feed lines, utility wires, and other antennas. While your ingenuity and
particular circumstances will determine the final mounting method.
MFJ-1754 PARTS LIST
The MFJ-1754 is shipped partially assembled. The following parts should be in the package:
ITEM
A
B
C
D

TOOLS REQUIRED

[ ] - 7/16" Open End Wrench
[ ] - #1 Screwdriver
[ ] - 5/64" Allen Wrench (Provided)

SAFETY PRECAUTIONS

WARNING !
- Always mount this antenna so that it is out of reach of adults as well as children. The radiator and the
ground plane can cause injury and or severe RF burns.
- Always wear eye protection when working with antenna
- You can be killed if the antenna, feed line, or the equipment used to install the antenna accidentally
contact any utility lines. Never install an antenna near power lines.

ASSEMBLY AND INSTALLATION PROCEDURE

QUANTITY DESCRIPTION
3
1
3
1
Radials
Chassis
6-32 X 1/2 Screws, & nuts
U-Clamp Assembly
Instructions