MFJ-266C HF/VHF/UHF Antenna Analyzer
Instruction Manual
Version 2A
1
2012 MFJ Enterprises, Inc
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-266C 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
)
Capacitance (pF)
Inductance (uH)
Relative Field Strength (mV)
Frequency (MHz)
The MFJ-266C 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 - 68 MHz in six HF bands
VHF:
108-230 MHz continuous coverage
UHF:
305-490 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, an 18650 Li-ion cell or by a regulated 12-VDC external
power source (not included). Weighing just over 1.3 pounds, the MFJ-266C
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.
