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MFJ-1278B MULTI-MODE TABLE OF CONTENTS
Table of Contents
INTRODUCTION......................................................................................................... 1
COMPUTER INTERFACING...................................................................................... 4
MFJ Starter Packs .................................................................................................. 4
Computer Interface with MFJ Starter Pack ............................................................ 5
Computer Interface without MFJ Starter Pack ....................................................... 5
SERIAL PORT SIGNALS............................................................................................ 5
COMPUTER WITH SPECIFIC SERIAL INTERFACES............................................ 6
Apple Macintosh.................................................................................................... 6
Commodore C64, C128 and VIC-20...................................................................... 7
IBM PCjr................................................................................................................ 7
Radio Shack Color Computer ................................................................................ 8
Color Computers.................................................................................................... 8
IBM PC/XT/AT/386/486 and compatibles Computer ........................................... 8
Other Computers with Nonstandard Serial Ports.................................................... 9
TERMINAL SOFTWARE REQUIREMENTS ............................................................ 10
Apple Macintosh.................................................................................................... 10
Apple II, II+, IIe, IIc .............................................................................................. 10
Commodore C64, C128 and VIC-20...................................................................... 11
IBM PCjr................................................................................................................ 11
IBM and Compatible Computers ........................................................................... 11
Radio Shack Color Computer ................................................................................ 12
Radio Shack Model 100/102 and NEC 8201 ......................................................... 12
MFJ-1278B SERIAL PORT PIN FUNCTIONS........................................................... 12
COMPUTER BAUD RATE ......................................................................................... 13
Autobaud................................................................................................................ 13
Changing Terminal Baud Rate............................................................................... 14
VERIFYING SERIAL PORT OPERATION................................................................ 15
PARALLEL PRINTER PORT...................................................................................... 16
Printer Port Connection.......................................................................................... 16
Printer Consideration ............................................................................................. 17
Printer Port Test..................................................................................................... 17
RADIO INTERFACING............................................................................................... 18
MFJ-1278B Radio Ports ........................................................................................ 18
RADIO PORTS CONNECTION.................................................................................. 19
HANDHELD RADIO CONNECTION ........................................................................ 20
RADIO INTERFACING METHODS .......................................................................... 21
Method 1: Direct Connection to Microphone and Speaker.................................... 21
Transmit Audio Level Adjustment for Method I Interface ............................... 21
Setting the Receiver Audio Input Level
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