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MFJ MFJ-1786 User Manual

MFJ MFJ-1786
16 pages
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MFJ MFJ-1786 Specifications

General IconGeneral
BrandMFJ
ModelMFJ-1786
CategoryAntenna
LanguageEnglish

Summary

THEORY OF OPERATION

CAUTION: Read All Instructions First

Critical safety warning to read all instructions before operating the unit.

ANTENNA PATTERNS AND POLARIZATION

Vertical Mounting Guide

Instructions for mounting the antenna for vertical polarization.

Horizontal Mounting Guide

Instructions for mounting the antenna for horizontal polarization.

NULLING UNWANTED SIGNALS

Using Nulls for Interference Reduction

How to use antenna nulls to reduce interference from specific directions.

VERTICAL POLARIZATION CHARACTERISTICS

HORIZONTAL POLARIZATION GUIDELINES

OUTDOOR LOOP INSTALLATION

Mounting Rules and Precautions

Essential rules for safely and correctly mounting the antenna outdoors.

CRITICAL SAFETY WARNINGS

Power Line and RF Exposure Hazards

Critical warnings about proximity to power lines and RF exposure limits.

INDOOR CONTROL BOX SETUP

Control Panel Features Overview

Description of the controls and features on the remote control unit.

CONTROL HEAD OPERATION AND POWER

Power Supply Requirements

Specifies the correct ungrounded power supply and voltage for the control head.

CONTROL UNIT PROTECTION AND INITIAL TESTING

Preventing Control Unit Damage

List of crucial "DO NOT" instructions to prevent damage to the control unit.

Initial Testing Procedure

Steps to follow for initial installation testing before applying RF.

ANTENNA TESTING AND RF APPLICATION

Tuning With RF Power Applied

Detailed steps for applying RF and tuning the antenna using the controls.

GENERAL OPERATION AND TUNING METHODS

Tuning When Frequency is Unknown

Procedure for tuning when the last operating frequency is not recalled.

ADVANCED TUNING PROCEDURES

Tuning With Known Frequency Movement

Method for tuning when the direction of frequency change is known.

RECEIVER TUNING AND TROUBLESHOOTING

Tuning for Receiver Use

How to tune the antenna manually when using it for receiving.

Common Troubleshooting Issues

Diagnosing and resolving common problems encountered with the unit.

TECHNICAL ASSISTANCE AND ADJUSTMENTS

Troubleshooting Specific Problems

Solutions for slow tune buttons and high SWR due to placement.

Contacting MFJ Support

Information on how to get technical assistance from MFJ.

LIMITED WARRANTY INFORMATION

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