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MFJ MFJ-495 User Manual

MFJ MFJ-495
60 pages
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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 2001-2009 MFJ ENTERPRISES, INC.
C
Model MFJ-495
VERSION 0D
Memory Keyer

Table of Contents

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MFJ MFJ-495 Specifications

General IconGeneral
BrandMFJ
ModelMFJ-495
CategoryAccessories
LanguageEnglish

Summary

The Basics

Introduction

Describes the MFJ-495 Memory Keyer, its features, and connectivity options.

Front Panel

Details the controls, display, and LEDs on the front of the MFJ-495.

Back Panel

Explains the rear panel connections including power, audio, keying, serial, and keyboard ports.

Connecting to a Computer

Instructions for connecting the MFJ-495 to a computer via the serial port.

Basic Operation

Explains the fundamental operation of the memory keyer.

How to Use the Menu System

Guide to navigating and using the keyer's menu system and buttons.

The Menus

Main Menus

Overview of the seven main menus for accessing keyer functions.

MSG1-MSG4 Buttons

Details on playing and saving messages using MSG1-MSG4 buttons.

MSG5-MSG8 Buttons

Details on playing and saving messages using MSG5-MSG8 buttons.

Command [COM] Button

Function of the COM button for entering command mode.

Decrement [DEC] Button

How to use the DEC button to decrement the serial number.

Carrier Tune [CXT] Button

Function of the CXT button for engaging carrier tune mode.

Pulse Tune [PXT] Button

Function of the PXT button for engaging pulse tune mode.

Speed

Adjusting the overall code speed of the keyer.

Farnsworth

Settings for Farnsworth mode to improve CW learning.

Weight

Adjusting the code element timing (weight).

Tone

Setting the sidetone audio frequency.

Changing Memory Banks

Procedure for switching between memory banks A, B, C, and D.

Miscellaneous

Shortcuts for accessing message menus.

Setup Menus

Speed Ratio

Sets the ratio of the speed control between its minimum and maximum positions.

Overall Speed

Configures the overall code speed in WPM.

Farnsworth

Enables or disables Farnsworth mode and sets its speed.

CCW Weight

Sets code weight at the counter-clockwise speed control position.

CW Weight

Sets code weight at the clockwise speed control position.

Character Space

Adjusts the spacing between characters.

Word Space

Adjusts the spacing between words.

Keying Compensation

Compensates for transmitter keying distortion or delay.

Keying Delay

Sets a delay for the keying output to accommodate switching.

PTT Hang Time

Configures the time the PTT remains active after keying ends.

Tone

Adjusts the sidetone frequency and audio characteristics.

Serial Number

Sets and formats the contest serial number.

Leading Zeroes

Sets the format for leading zeros in the serial number.

Other Zeroes

Sets the format for non-leading zeros in the serial number.

Nines

Sets the format for nines in the serial number.

Iambic

Enables or disables iambic keying modes (A or B).

Reverse

Reverses the paddle designation (dot/dash).

Paddle

Selects paddle mode: automatic, semi-automatic, or hand-key.

Monitor

Toggles the sidetone monitor on or off.

Output

Enables or disables the keying output.

Queue

Enables or disables the message queue feature.

User

Selects one of four user configurations.

The Paddle

Using the MFJ-495 with a Paddle

Instructions for connecting and using a paddle with the keyer.

Setup Commands

Lists and explains setup commands for paddle and keyer configuration.

Message Memory

Message Memory

How to play, save, and edit messages in memory.

Uploading and Downloading Messages

Procedures for transferring messages between computer and keyer.

The Keyboard

Using the MFJ-495 with a Keyboard

Instructions for connecting and using a keyboard with the keyer.

Keyboard Key Combinations

Lists special functions accessible via keyboard key combinations.

The Terminal

Using the MFJ-495 with a Terminal Program

How to use a computer terminal program to communicate with the keyer.

Setup Commands

Lists and explains setup commands executable via the terminal.

The Memory

Message Memory Structure

Details the organization and capacity of the keyer's memory.

Preparing Messages

Guide to preparing messages using an ASCII text editor.

Embedded Commands

Using commands within messages to control keyer functions during playback.

Appendices

Resetting the Keyer

Procedure to reset the keyer to factory default settings.

Message Memory Reset

Instructions for erasing all stored messages or individual messages.

Self Test

Procedure for running a self-test routine to check keyer functions.

Power Down Circuit Test

Procedure to test the keyer's power down circuitry.

Troubleshooting

Troubleshooting

Answers common questions and resolves operational issues.

Technical Assistance

Contact information and guidelines for seeking technical support.

Morse Code Character Set

Morse Code Character Set

A reference chart of Morse code characters, numbers, and prosigns.

Signals Used in Other Radio Services

Signals Used in Other Radio Services

Common signals and their meanings used in radio communication.

Some CW Abbreviations

Some CW Abbreviations

A list of common abbreviations used in CW communication.

Meaning of Q Signals

Meaning of Q Signals

Definitions of standard Q signals used in radio communication.

Setup Commands

Setup Commands

A comprehensive table summarizing all setup commands via different input methods.

Schematic

Schematic

The electronic schematic diagram of the MFJ-495 Memory Keyer.

LIMITED 12 MONTH WARRANTY

LIMITED 12 MONTH WARRANTY

Details the terms and conditions of the product's 12-month limited warranty.