MFJ MFJ-266B User Manual

INSTRUCTION MANUAL
CAUTION: Read All Instructions Before Operating Equipment
MFJ ENTERPRISES, INC.
300 Industrial Park Road
Starkville, MS 39759 USA
Tel: 662-323-5869 Fax: 662-323-6551
COPYRIGHT 2012 MF J ENT ERPRIS ES, INC.
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Model MFJ-266B
VERSION 1D

MFJ MFJ-266B Specifications

General

Connector Type	SO-239
Impedance	50 Ohms
Display	Analog meter
Functions	SWR, Impedance
Battery	9V battery

Summary

Power Sources

Internal Batteries

Details on using and installing internal AA and 18650 batteries.

External Power Supply

Guidelines for connecting and using an external 12V DC power supply.

Operating Mode

Main Menu Screen

Frequency Counter Mode (D -> FC)

Using the MFJ-266B as a 1-500 MHz frequency counter.

Antenna Analyzer Mode (U -> ANT)

L/C Measurement Mode

Measuring unknown capacitors and inductors.

Frequency Selection

Accuracy Limits

SWR Measurements and Local Interference

Potential interference affecting SWR readings.

Calibration-Plane Error

Error introduced by measuring through a cable.

Antenna Measurements

SWR

Understanding Standing Wave Ratio and impedance mismatch.

Measuring SWR

Procedure for checking antenna SWR using the analyzer.

SWR, Bandwidth, and Resonance

Antenna Tuning

Adjusting antenna length to achieve desired SWR.

Antenna matching

Matching Antennas Through A Tuner (ATU)

Antenna Impedance Readings

Quick Guide to Analyzer Controls and Functions

Technical Assistance

12 Month Limited Warranty