MFJ-266B HF/VHF/UHF Antenna Analyzer
Instruction Manual
2012 MFJ Enterprises, Inc.
Version 1D
1
1.0 INTRODUCTION
Important: Read Section-2 before attempting to use your analyzer --
applying incorrect operating voltages could result in permanent damage!
Also, never apply a DC voltage to the antenna connector.
General Description: The MFJ-266B is a self-contained handheld RF
analyzer that performs the following diagnostic functions:
SWR (1:1 to 9.9:1)
Complex Impedance (Z = R + jX)
Impedance Magnitude (Z =
Ω
Ω
Ω
Ω
)
Capacitance (pF)
Inductance (uH)
Relative Field Strength (mV)
Frequency (MHz)
The MFJ-266B also generates a 2-dBm RF signal that may be used to
check receivers, networks, amplifiers, and antenna patterns. Operating
range is:
HF:
1.5 - 71 MHz in six HF bands
VHF:
85-185 MHz continuous coverage
UHF:
300-490 MHz continuous coverage
A 10:1 vernier drive provides smooth tuning. Measurements are
displayed on an easy-to-read LCD screen with optional backlighting.
Power is supplied by internal AA cells or by a regulated 12-VDC
external power source (not included). Weighing just over 1.3 pounds, the
MFJ-266B package fits comfortably in one hand for convenient bench
work or on-the-fly testing in the field. Operation is simple, but you will
need to read the manual to learn all of the unit's features and functions.
The more you know the more valuable it will become as a diagnostic
tool.