Jmpb, Jmpc, Jmpd, Jmpe, Jmpf, Jmpg, Jmph, Jmpj | Epson MFJ-1278B

MFJ-1278B MULTI-MODE				HARDWARE
			Table 8-1: Jumper Function (Cont.)

	Jumper #	Position		Function

	JMPB	ON (default)		On board transmit low tone
		OFF		Out board transmit low tone
	JMPC	ON		Enable external DCD
		OFF	(default)	Disable external DCD

	JMPD	NOT used

	JMPE***	ON (default)		Disable Low Tone RTTY Demod
		OFF		Enable Low Tone RTTY Demod

	JMPF***	ON (default)		Disable Low Tone RTTY Demod
		OFF		Enable Low Tone RTTY Demod

	JMPG***	ON (default)		Disable Low Tone RTTY Mod
		OFF		Enable Low Tone RTTY Mod

	JMPH***	ON (default)		Disable Low Tone RTTY Mod
		OFF		Enable Low Tone RTTY Mod

	JMPJ	ON		TX audio has flat response
		OFF	(default)	TX audio 6db/oct pre-emphasized

	JMPK	ON		TX audio loopback to PTT
		OFF (default)		(for Radio Port 2)

	JMPL	ON		TX audio loopback to PTT
		OFF	(default)	(for Radio Port 1)

	JMPR	ON		Analog audio loopback
		OFF	(default)	(for Radio Port 1)

	JMPX	ON (default)		Speaker Transmit Tone Enable
		OFF		SpeakerTransmit Tone Disable

	JMPY	ON (default)		Speaker Receive Tone Enable
		OFF		Speaker Receive Tone Disable

Image 312

Epson MFJ-1278B manual Jmpb, Jmpc, Jmpd, Jmpe, Jmpf, Jmpg, Jmph, Jmpj, Jmpk, Jmpl, Jmpr, Jmpx, Jmpy

Contents

Table of Contents FSK Connection Getting Started Connect Navtex Operation FAX OperationSlow Scan Television Operation Advanced Packet Operation 125 MFJ-1278B Specifications MULTI-LEVEL Interface CONNECTOR,J13External Modem Interface Connector J14 HF Tuning Indicator CW Modem TUNE-UP Procedure BPS Packet SetupCommand Summary MFJ-1278B/1278BT Parts List MFJ-1278B MULTI-MODE Table of Contents MFJ-1278B MULTI-MODE Introduction MFJ-1278B MULTI-MODE Introduction Items supplied with MFJ-1278B/MFJ-1278BT package MFJ-48BE MFJ-1278B MULTI-MODE Computer Interfacing MFJ Starter Packs Serial Port Signals Pin Signal Name DescriptionSerial port signals required by MFJ-1278B Manufacturer Model Computer with Specific Serial Interfaces Apple MacintoshMacintosh MFJ-1278B Pin DB-25P DB-9P Hsko Hski Commodore C64, C128 and VIC-20 IBM PCjr Radio Shack Color Computer Color ComputersIBM PC/XT/AT/386/486 and compatibles Computer Color Computer DB-25P Other Computers with Nonstandard Serial Ports MFJ-1278B RS-232C Computer RS-232C Apple II, II+, IIe, IIc Compatibility TerminalMacTerm Parameters for MFJ-1278B IBM and Compatible Computers MFJ-1278B Serial Port PIN Functions Radio Shack Model 100/102 and NECPin # Mnemonic Name RS-232C Pin Designations Computer Baud Rate Autobaud Changing Terminal Baud Rate BbRAMLOAD with Defaults a MFJ ENTERPRISES, INC. Model MFJ-1278B Printer Port Connection MFJ-1278B DB-25 Name Printer Port Pin # Printer Consideration Printer Port TestType Printtes CR MFJ-1278B MULTI-MODE Radio Interfacing MFJ-1278B Radio Ports Radio Connector Pin Diagram HT Special Keying Circuit Transmit Audio Level Adjustment for Method I Interface Method 1 Direct Connection to Microphone and SpeakerCalibra Setting the Receiver Audio Input Level Method 2 Accessory Jack or Interface Box Connection Accessory Jack Interface External Interface Box Transmit Audio Level Adjustment for Interface Method Receiver Audio Setting Important Note Harmonics InterferencePage MFJ-1278B MULTI-MODE Radio Interfacing CW Installation Keying ConnectionKey Paddle Connection MFJ-1278B MULTI-MODE Radio Interfacing FSK Connection FSK Cable Basic Commands MFJ-1278B MULTI-MODE Basic Operation Getting StartedFirst Steps Serial Port Configuration MFJ-1278B MULTI-MODE Basic OperationMycall K5FLU Mycall was Nocall cmd Parity and Word Length EchosParity 1 or Parity New Lines and Line Wrapping Modem Operation Modes AMTOR, Navtex VHF RTTY, VHF AsciiModem LOW Tone Hz High Tone Hz Shift Hz Mode Switching With the Mode Command MFJ-1278B MULTI-MODE Basic Operation Operational ModesVerifying Operation Status Radio Port Switching Memory Buffers Loading the Memory Buffers Transmitting the Memory BuffersBuffer Serial Numbering BUF1 The QTH here is Starkville, Mississippi. Enter Memory Repeat and Buffer Repeat Time Chaining the Memory BuffersBuftime 15 Enter Buftime to MFJ-1278B MULTI-MODE Basic Operation Tuning Indicator Connecting and Disconnecting Exercise MFJ-1278B MULTI-MODE Basic Operation Packet OperationVHF Packet Cmd Fulldup on Cmd Connect K5FLU Cmd Disconne Disconnected Digipeating AD7ICmd Connect N2WX VIA AD7I Cmd Connect N2WX VIA NK6K, KV7D Unsuccessful Connections Monitoring Channel ActivityRetry count exceeded Disconnected WB6YMHWD0ETZ,KV7B Mheard EnterAD7I WA7GXD N2WX NK6K KV7B Your First Packet QSO Starting the QSOCmd Connect WB0QRP Connected to WB0QRP CTRL-C Cmd Connect K5FLU VIA WB0QRPCmd Connect WB0QRP VIA K5FLU Cmd Command 5 was $03 Monitoring on the AirSpecial Input Characters Cmd Monitor on Cmd Mcon on Cmd Convers Cmd Hi, John, how are you?CTRL-X\ Hi, John, how are you?Canline RedisplaPage HF Packet Operation Hints What is Pactor? MFJ-1278B MULTI-MODE Basic Operation PactorPactor Operation Pactor Mode PT Enter FEC Unproto operationMFJ Pactor $2c-1022 free pcmd Mycall n Enter Changeover Monitoring Exiting Pactor Mode Threshold Control SettingTxdelay TXD Monitoring Amtor ARQ requests Pactor Feature Definitions Digital Memory ARQ Connect SPEEDup/SPEEDdown Pactor Status Indicators Status IndicatorAmtor Detection in Pactor STA CON Setting Up your Pactor Mailbox MFJ-1278B MULTI-MODE Basic Operation Pactor MailboxMemory Size # of Slots Bytes Avail MFJ Pactor $2c-1022 free Mailbox on Enter General Overview Sysop EnterMailbox Ready Free de callsign Help, K, L, R, S MFJ-1278B MULTI-MODE Basic Operation Slot## t m To From Subject Nn free de callsignHelp, K, L, R, S Detailed Pactor Mailbox Overview SP call Enter Subject Max Characters Send msg Control-Z or /EX on it own line ends ## Enter Message ## deleted Nn free n Mailbox Help,K, L, R, SEnter Nn free n Mailbox Help, K, L, R, S ## Enter Mailbox Messages Pactor Enter?EH Procedure MFJ-1278B MULTI-MODE Basic Operation CW Operation Receiving CW Enter Mode CW,15 Enter Transmitting CWMSPeed 15 Enter CW Weighting Weight ### EnterTransmitting from Memory Buffers Tuning your Radio Random Code GeneratorCONTROL-C Randomcw OFF Enter Setting Up the for Code Practice Randomcw on EnterCtrl-R Ctrl-T Sending CW with External Key Paddle Mspeed 15 Enter Mode MC Enter Radio Terminal Mode Modulated CW CmdMFJ-1278B MULTI-MODE Basic Operation Modulated CW Operation Setting Up for Ascii and Rtty Operation Mode ## EnterVHF Rtty Mode VB,110 Enter Rtty and Ascii ReceivingRtty and Ascii Transmitting Bad? Mode HB,75 Baudot Rtty Operation Hints Commercial Rtty Reception CTRL-T WtgCD SpeedConfidence Factor.SpeedData BitsRXInvert On/OffBaud, 90% Confidence baud used 7 bits, RXInvert Off OK Enter OK Amtor Enter Configuring for Mars Command Mars SettingMode HB,75 Enter Mars Operation MARsmode Command Operating Mars with MultiCom for IBM Marsmode 1- QSO Mode Marsmode 3- Storage Mode Mode a ARQ Setting up for Mode a OperationsMode AM Enter MFJ-1278B MULTI-MODE Basic Operation Amtor Operation Operating Mode a N2WX becomes Nwwx using zone=Q 2=W 3=E 4=R 5=T 6=Y 7=U 8=I 9=O 0=P Monitoring Mode A, ARQ Mode B FECSetting up for Mode B FEC Mode B FEC Operations Amtor Status LED Indicators Myselcal xxxx Enter ARQ xxxx Enter Summary of Amtor Contact Sequence Print on Enter MFJ-1278B MULTI-MODE Basic Operation Navtex Operation Navtex Stations and FrequenciesNavtex Operation Station QTH Station ID Broadcast Time UTC Navtex on Enter LORAN-C Omega Systems Satnav SystemsNavtex OFF Enter MFJ-1278B MULTI-MODE Basic Operation FAX Operation FAXMODEn Lines per Type of Service Minute Second FAX FormatsFaxmode n Enter FAX Installation FAX FrequencyPrinter Connection Locations Mode FX Enter Receiving FAXReceiving FAX to the Printer MFJ-1278B MULTI-MODE Basic Operation Display FAX Picture on Computer Screen & Save it to Disk Two Level FAX Picture FormatLF, CR, ESC x x, ESC x x x, nnn character of graphics Multi-level FAX Picture Raw Data Format Multifax on Enter Transmitting FAX Two Level FAX Transmitting000 001 110 111 White Lightest grey Darkest grey Black Multi-level FAX Transmitting MFJ-1278B MULTI-MODE Basic Operation Creating FAX Pictures for Transmitting PixtonesValues HEX FAX/SSTV Transmit Tones HzPage Sstv Installation Sstv FormatsPrinter Connection TVMODEn Formats Mode TV Enter Receiving Sstv PicturesSstv Printing to the Printer Tvmode n Enter MFJ-1278B MULTI-MODE Basic Operation $ss,$aa,$bb,$cc,$dd,$ee,$ff,$gg,$hh,$ii,$jj,$kk,$ll,$mm,$nn Printing Sstv Pictures to the Screen Saving Sstv Pictures to Disk Terminating Sstv PrintingTransmitting Sstv Pictures Creating Sstv Pictures for Transmitting MFJ-1278B MULTI-MODE Basic Operation Special Characters Command Mode MFJ-1278B MULTI-MODE Advanced OperationPacket Operating Modes Dec Hex Control Mnemonic Entering Data-Transfer Modes Converse Mode Connected to callsign Transparent Mode Flow Control XON/XOFF Flow Control Detailed VHF Packet Operation Hardware Flow ControlType-in Flow Control Station Identification Automatic Operations W3IWI-3IDW3IWI/R Unattended Operations Packet FormattingCmd Beacon Every Commands Affecting Protocol Packet Timing FunctionsTransmit Timing Cmd Unproto QST VIA NK6K Keyup delay = Txdelay + Axdelay * 10 in milliseconds Keyup delay = TXDELAY*10 in millisecondsPacket Timing Retry interval = Frack * 2*n + Wait time = Dwait * 10 + r * Txdelay Radio Baud RateWait time = Dwait Special Protocol Timing Monitor Functions Real-Time Clock and Time Stamping WB9FLWN7CL C KV7BN2WX D Setting the MFJ-1278B to Normal Operation How do I Invoke Multi-Connect?Conperm Users Easy-Mail Mailbox Setting Up your Easy-Mail Mailbox Users 1 CRMailbox on CR Sysop CR Your MFJ-1278B will respond with Slot1 PN ToKB5JNZ FromKF5C BBS Bulletin Nn free n Mailbox B,E,Help,J,K,L,M,R,S,T Memory Size Number of BanksNn free 0 Mailbox B, E, Help, J, K, L, M, R, S, T Paging Sysop any key aborts Paging Sysop any key aborts No answer Mailbox Operation Title Send msg Control-Z or /EX to end Cannot, not yours Slot## t m To From Subject ## CR Additional Mailbox Features ForwardingCallsign Busy Disconnected Connect requestCALLSIGN Chat Mode Eliciting Reverse ForwardsRemote Heard Log Sysop Idle Timeout Mailbox CTextAbort Mailbox Messages You have new mail ?Mailbox fullNot found None found Slotting and Acknowledgment Priority Description MFJ-1278B MULTI-MODE Advanced Operation New Parameters Ackprior Onoff Slots n Remarks Other Related Parameters Baud Rate Frack Seconds Initial Parameter Settings Summary What to ExpectFrack ACKTime MFJ-1278B MULTI-MODE Advanced Operation Using Pktpix Packet Picture TransferPrinting Packet Pictures thru Built-in Printer Port Packet Picture transfer to the computer screen Radio Setup for HF Packet Operation MFJ-1278B MULTI-MODE Advanced Operation MFJ-1278B MULTI-MODE Advanced Operation Operating HF Packet MFJ-1278B MULTI-MODE Advanced Operation MFJ-1278B MULTI-MODE Advanced Operation Yourcall CQ Yourcall Hiscall MFJ-1278B MULTI-MODE Advanced Operation Digipeat Dwait OFFCheck OFF Cmsg Retry Maxframe MFJ-1278B Kiss MODE, TNC-2 MODE, Host Mode Kiss Interface for TCP/IP Command Function Comments Param ax0 MFJ-1278B MULTI-MODE Operational Commands Command Preface Entering CommandsXflow OFF MFJ-1278B MULTI-MODE Operational Commands Command ListDefaults Cmd Asdfasdf Parameters Beacon EVERY/AFTER n Remarks Cmd Conok YConok on Mode Packet Default OFF Mode FAX/SSTV Default OFF8BITCONV ON/OFF 8LEVELS ON/OFF Mode FAX/SSTV DefaultON Mode Amtor Default OFF16LEVELS ON/OFF Aalt ON/OFF Mode Packet Default on Acktime nnnn Mode Packet DefaultAlockchar nn Mode CW/MCW Default $15 Ackpriority ON/OFF Altcall ssss Mode Amtor Default blank Ansbstr cccc Mode Amtor Default blank Arcvchar nn Mode RTTY/ASCII Default $12 Answrqra ON/OFFCmd Unproto Qracr Asendcha nn Mode RTTY/ASCII Default $14 ASASpeed Confidence Factor. Data Bit RXInvert On/Off Aspect n Mode FAX Default Mode All Default on Autobaud ON/OFF AUtolf ON/OFF Mode Pactor Default on Autolf ON/OFF Awlen n Mode All Default Autotrac ON/OFF Axdelay n AX25L2V2 ON/OFFAxhang Message Effect When Bbsmsgs on Axhang nBbsmsgs ON/OFF Beacon Everyafter n Mode Packet Default Every Bkondel ON/OFF Bkondel on BLP ON/OFF Conmode TRANS/CONVParity Awlen Btext text Mailbox on line. Messages for WB9FLW, AD7I, K9NGBudlist ON/OFF BUF n Bufkey nnnBuftime n Bwnl ON/OFF CaliraSpace Calset n Canline n Cancel Display Output Canpac n CBell ON/OFF Mode Pactor DefaultOFF Cbell ON/OFFOFF BELL*** Connected to callsign Mode Rtty Default on Ccitt ON/OFFChange Chat CHObell ON/OFF Mode Pactor Default on Check nCHECKV1 ON/OFF CMDchr nnn 0=nn=255 Mode Pactor Default $03 Cmdtime n TNCConnect callsign Conperm ON/OFF Cmsg ON/OFF Cmsgdisc ON/OFF Command n Conmode CONVERS/TRANS ConversTrans Call2 Connect WA7GXD VIA N0ADI-1,WD0ETZ Conok ON/OFF Connect request callCall station busy Constamp ON/OFF Connected to N2WX 05/28/85Converse Cpactime ON/OFF CR ON/OFF Ctext text TextIm not here right now, but you may leave a message Cstatus Cwcall ssss Mode Amtor Default blank CWidmode nn 0=nn=255 Mode Pactor Default Cwsendch nnn Mode CW Default$FF Mode CW Default OFFCwspeedm ON/OFF Daytime date&time YymmddhhmmCmd Daytime Cmd Daytime 02/29/84 Dayusa ON/OFF Delay nn Deadtime nnn Mode ASCII/RTTY Default on Delete ON/OFFDiddle ON/OFF Digipeat ON/OFF Disconne Display class AsyfrerrAsyqover Asyrxovr Bbfailed DigisentHovrerr Hundrerr Rxerrors RxlenerrRxresync Sentfrmr EAa ON/OFF Mode Pactor Default on DisplayDwait n Mode CW/RTTY/ASCII Default OFF EAS ON/OFFEasin ON/OFF Echo ON/OFF ECho ON/OFF Mode Pactor Default on Parameter ERrstrin cccc Mode Pactor DefaultMode Amtor Default on Epson ON/OFF Mode Packet Default OFF Parameters EXActcal ON/OFF Mode Pactor DefaultONEscape ON/OFF Farnswor ON/OFF Faxeop ON/OFF Mode FAX Default OFF Faxneg ON/OFFFaxrev ON/OFF FEC FLow ON/OFF Mode Pactor Default on Flow ON/OFFForward Fulldup ON/OFF Graphlf Onoff Headerln ON/OFFKV7DN2WX Go ahead and transfer the file N2WXKV7D Healled ON/OFF HID ON/OFF IDTime nnn Mode Mailbox Default OFF Kilonfwd ON/OFFKiss ON/OFF Lc callsign Lcalls call1,call2...,call8Lcok Onoff LEdmode 0/1 Mode Pactor Default LFadd ON/OFF Mode Pactor Default OFF Mode ASCII/Packet Default OFF Lfadd OnoffLfaddalt ON/OFF Lfignore ON/OFF Mode Amtor Immediate Command MAILbox ON/OFF Mode Pactor Default OFFListen Mailbox ON/OFF Mailled ON/OFF Mall ON/OFF Marsmode n TX Translations@ Bell \ Null Figs Ltrs Bell Null MAXDown nnn Mode Pactor Default Maxframe n Mode Packet DefaultMatch ON/OFF MAXSum nn Mode Pactor Default MAXUp nnn Mode Pactor DefaultMbegin cccc Mode Amtor Default Mcom ON/OFF Mcon ON/OFF Mend cccc Mode Amtor Default nnnn Mfilter n1,n2,n3,n4 Mode Packet Default noneMctext text Mhclear MheardMode MNONAX25 ON/OFF Monitor ON/OFF Mode Pactor Default on Monitor ON/OFFN2WXW5FD-3 Im ready to transfer the file now Mrpt ON/OFF WB9FLWAD7I,K9NG*,N2WX-7Hi PaulWB9FLWAD7IHi Paul Mspeed n Mtimeout n Mstamp ON/OFF Multifax ON/OFF Mycall call-n MYcall callsign Mode Pactor Default Mfjpactr Myalias call-n Mode Packet Default blank Myhierad Text Mode Mailbox Default Mymcall callsignMyselcal ssss Mode Navtex DefaultOFF Navstn Text Mode Navtex Default ALLNavtex ON/OFF Navmsg LORAN-CNewmode ON/OFF Mode Pactor Default OFF Nodeforw node Mode Mailbox DefaultNO200 ON/OFF Nodepath text string Mode Mailbox Default Cmd Nodepath C KB4VOL Cmd Nodeforw PSL5Nomode ON/OFF Nucr ON/OFF Nulls n Paclen n Mode Packet Default Pactime Everyafter n Mode Packet Default AfterOmlc ON/OFF Pass n Mode Packet Default $16 CTRL-V CTRL-C Passall ON/OFF Pixtones n White Lt gray Dark gray Black AreaSyn Pixtones Values HEX FAX/SSTVTransmitTones Hz Mode Packet Immediate Command Entering transparent mode for packet-pix receptionPktpix ON/OFF Printgra ON/OFF Printer ON/OFFPrinttes PTOver nnn 0=nn=255 Mode Pactor Default $19 PTSend QRT Radio nRandomcw ON/OFF Rbitmask $xx Mode RTTY/ASCII Default Reconnect call1 VIA call2,call3...,call9 Mode Packet Remsysop call-n Mode Mailbox Default Blank Redispla n Reset Resptime n Mode Packet DefaultRestore Restart RETries nnn 0=nn=255 Mode Pactor Default Revflim call-n Mode Mailbox DefaultRetry n RFE ON/OFF Rinv ON/OFF Rxblock ON/OFF $FFPID Data Rxbright n Rxbr n TVBreak Values Rxcal Calset Adjustment & Location Map Rvfalway ON/OFF Rxinvert ON/OFF Serialno n Mode CW Default Setup Modem Default Baud Rate Speed/ FormatSstv Sfnl ON/OFF Slots nnn Mode Packet Default Solf ON/OFF Srxall ON/OFF Start nSTatus Status Stop n Streamca ON/OFF Streamdb Onoff This is a testStreamsw n Timedcmd text string Mode Mailbox Default Timedmin n Mode Mailbox DefaultMailbox String- max 119 chars TRace ON/OFF Mode Pactor Default OFF Trace ON/OFFKV7BCQ,KF7B*this is a test message ModePacket Default OFF Trflow ON/OFF Tries n Mode Packet Default None TuneTuneproc Tvbreaks n Mode Sstv Default see below Mode Sstv Default OFFTvhsync ON/OFF Tvmode n Mode Sstv Immediate Command Txdelay n Mode Packet Default TVX ON/OFF TXDelay n Mode Pactor Default 2 60ms Txdelayc nnnTxdelayc = Radio-PTT-delay-time / Time-per-character Baud Rate Time-per-character Txdiddle ON/OFF Txtmo n Mode Packet Default Txflow ON/OFFTxinvert ON/OFF Txuiframe ON/OFF U1 UNprotoU2 UNproto URepeats nn Mode Pactor Default Users n Mode Packet DefaultUnshift ON/OFF Visticks nnnn Mode Sstv Default0 Defaults Nibble Tone WAitdisc nn Mode Pactor Default Weight n Mode CW DefaultWdmode ON/OFF WRU Xoff n Mode All Default $13 Xmitok ON/OFF XOff nn XOn nnXON n BbRAM loaded with defaults Packet MessagesWas MFJ-1278B MULTI-MODE System Messages Too many packets outstanding? Expected bank n....x Message saved Command Mode Error Messages ?bad?call ?clock not set ?VIA Link Status Messages Connected to call1 VIA call2,call3...,call9 Connect requestcall1 VIA call2,call3...,call9Callsign busy Frmr frame just sent Frmr sent Frmr rcvd LINKOUTOFORDER, possible datalossopt.daytime stamp MFJ-1278B Specifications MFJ-1278B MULTI-MODE Hardware Power Required General DescriptionBbRAM Protocol Detailed Circuit Description OscillatorDividers and Baud-rate Generator CPU Complex Serial Interface Watch-dog Timer Power SupplyModem RS-232C Handshaking Protocol MFJ-1278B MULTI-MODE Hardware MFJ-1278B MULTI-MODE Hardware Jumper Functions Jumper # Position Function JMP16 JMP17JMP18 JMP19 Jmpb JmpcJmpd Jmpe Parallel Printer Port PIN FUNCTION,J12 Printer Port Pin # Pin Function J5 Pin # Pin Function External Modem Interface Connector J14 J13 Pin # Pin Function MFJ-1278B MULTI-MODE Hardware Modem Disconnect HEADER, J4 Pin 1 Carrier Detect InputPin 2 Carrier Detect Output Pin 3 SIO Special Interrupt Input Pin 5 SIO RTS Output Pin 6 Transmitter Key InputPin 7 Connect Status Output Pin 8 Unacknowledged Packets Pending Status Output HF Tuning Indicator MFJ-1278B MULTI-MODE Troubleshooting General Tests Obvious Problems Assembly Problems Specific Symptoms Cabling ProblemsSymptom TNC appears dead Oscillator and Reset Circuits Symptom Modem wont calibrate or key transmitter Terminal Interface Troubleshooting Symptom Uncopyable transmitted or received packetsSymptom MFJ-1278B wont sign on to the terminal Symptom The MFJ-1278B signs on OK but wont accept commands Physical Layer Data Link Layer MFJ-1278B MULTI-MODE Packet Radio Protocol Hdlc Frames AX.25 Level TWO Code Abbrv Frame Type RNR REJSabm DiscPage Channel Flow Control MFJ-1278B MULTI-MODE Appendix a Radio Hookup Table A-1HOOKUP for Specific Radios Table A-1.2Other Radio Connections MFJ-1278B MULTI-MODE Appendix B Modem Calibration MODULATOR/DEMODULATOR Frequency CalibrationCalibration Method Test equipment needed Multilevel xmit...1900 Multilevel demod 307 154KHz 1550 Hz 106 2250 Hz 70Demodulator Alignment R79 Calibration Procedure Comprehensive Alignment Procedure Set Modulator Tones Using Built-in Calibration Software= INT 525000 / Flow + Demodulator Center Frequency Alignment = INT 525000 / Fhigh + Tuning Indicator Alignment Alignment Procedure MFJ-1278B MULTI-MODE Appendix B Modem Calibration MFJ-1278B Adjustment Location Map Calset Values for Various Modulator Tone Frequencies Calset #Page Detailed CW Demodulator Alignment Procedure MFJ-1278B MULTI-MODE Appendix B Modem Calibration MFJ-1278B MULTI-MODE Appendix B Modem Calibration Audio Output Level Adjustment Procedure Cali CR MFJ-1278B MULTI-MODE Appendix C Audio Output Radio 2 CR MFJ-1278B MULTI-MODE Appendix D HF Radio HF Radio Alignment First Method Noise Average Frequency Fc = Flow+Fhigh/2 Page MFJ-1278B MULTI-MODE Appendix E Converting to TNC-2 BPS Packet Setup Mode VP,2400 CR BPS Receive Audio Setting BPS Transmit Audio SettingMFJ-1278B MULTI-MODE Appendix F 2400 BPS Packet CN-6 Jumper Position Transmit Audio Range no load JMP13 JMP14 MFJ-1278B MULTI-MODE Appendix G Jumper Functions Jmpa Jmpz Fig. G-1 Jumper Connector Location MFJ-1278B MULTI-MODE Appendix H Command Summary Acktime BLP Conperm Deadtime FEC Lfignore Mrpt Pactime Retry Timedmin Users MFJ P/N Descrpition Component IDRESISTORS, 1/4 WATT, 5% MFJ-1278B MULTI-MODE Appendix I Parts List RESISTORS, 1/8 WATT, 1% TRIMPOTS, Bourns or Equal Trim POT Single TURN, MiniaturePOT 17MM Single TURN, PCB Mount Capacitors MULTI-LAYER, Monolithic Ceramic Capacitors MYLAR, 50V/100V Capacitors Electrolytic Capacitor Other Types IC Sockets LOW ProfileICS Do not use 74HCT14 for these ICs DIODES/LEDS Transistors Connectors Voltage Regulator Miscellaneous For Installing Cover Display PC Board AssemblyGrayscale PC Board Assembly Mounting NUT for R131 BOM for Display PC Assembly P/N This is to Insure Good Contact with Chassis Reduce EMIAddition Parts for MFJ-1278BT only BOM for Grayscale PC Assembly P/N Resistors 1/8W, 1%Trimpot 15 Turns, Bourns or Equal Descrpition Component ID Capacitor Monolithic Ceramic Capacitor ElectrolyticIC Sockets ICs RESISTOR, 1/4 WATT, 5% RESISTOR, 1/8 WATT, 1% RESISTOR, NETWORK, SINGLE-ON-LINE, IsolatedRESISTOR, Trim POT, Single TURN, MINIATURE, Horzontal Capacitors Disc Ceramic Diodes CENTER, TOP ENTRY,10 POS CN1 Dual ROW Socket Connector CENTER, Right Angle JMP 14B POS. HeaderCENTER, 3 POS. Header POS. Shorting Jumer for CN6 Manual Index MFJ-1278B MULTI-MODE Manual Index Autotrac MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index Connect CW KEY-IN Cwspeedm MFJ-1278B MULTI-MODE Manual Index FARnswor, 73, 75 Farnsworth CW, 75 FCS\, Hdlc field Introduction MFJ-1278B MULTI-MODE Manual Index Normal CW MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index MFJ-1278B MULTI-MODE Manual Index Txdelay