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Epson manual MFJ-1278B MULTI-MODE Table of Contents

Models: MFJ-1278B

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MFJ-1278B MULTI-MODE

TABLE OF CONTENTS

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Epson manual MFJ-1278B MULTI-MODE Table of Contents

Contents

Table of Contents FSK Connection Getting Started Connect Navtex Operation FAX OperationSlow Scan Television Operation Advanced Packet Operation125 MFJ-1278B Specifications MULTI-LEVEL Interface CONNECTOR,J13External Modem Interface Connector J14 HF Tuning IndicatorCW Modem TUNE-UP Procedure BPS Packet SetupCommand Summary MFJ-1278B/1278BT Parts ListMFJ-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-48BEMFJ-1278B MULTI-MODE Computer Interfacing MFJ Starter PacksSerial Port Signals Pin Signal Name DescriptionSerial port signals required by MFJ-1278B Manufacturer ModelComputer with Specific Serial Interfaces Apple MacintoshMacintosh MFJ-1278B Pin DB-25P DB-9P Hsko HskiCommodore C64, C128 and VIC-20 IBM PCjrRadio Shack Color Computer Color ComputersIBM PC/XT/AT/386/486 and compatibles Computer Color Computer DB-25POther Computers with Nonstandard Serial Ports MFJ-1278B RS-232C Computer RS-232CMacTerm Parameters for MFJ-1278B Apple II, II+, IIe, IIcCompatibility Terminal IBM and Compatible Computers MFJ-1278B Serial Port PIN Functions Radio Shack Model 100/102 and NECPin # Mnemonic Name RS-232C Pin DesignationsComputer Baud Rate AutobaudChanging Terminal Baud Rate BbRAMLOAD with Defaults a MFJ ENTERPRISES, INC. Model MFJ-1278BPrinter Port Connection MFJ-1278B DB-25 Name Printer Port Pin #Type Printtes CR Printer ConsiderationPrinter Port Test MFJ-1278B MULTI-MODE Radio Interfacing MFJ-1278B Radio PortsRadio Connector Pin Diagram HT Special Keying Circuit Calibra Transmit Audio Level Adjustment for Method I InterfaceMethod 1 Direct Connection to Microphone and Speaker Setting the Receiver Audio Input Level Method 2 Accessory Jack or Interface Box Connection Accessory Jack InterfaceExternal Interface Box Transmit Audio Level Adjustment for Interface Method Receiver Audio Setting Important Note Harmonics InterferencePage Key Paddle Connection MFJ-1278B MULTI-MODE Radio Interfacing CW InstallationKeying Connection MFJ-1278B MULTI-MODE Radio Interfacing FSK Connection FSK CableFirst Steps Basic CommandsMFJ-1278B MULTI-MODE Basic Operation Getting Started Serial Port Configuration MFJ-1278B MULTI-MODE Basic OperationMycall K5FLU Mycall was Nocall cmdParity 1 or Parity Parity and Word LengthEchos New Lines and Line Wrapping Modem Operation Modes AMTOR, Navtex VHF RTTY, VHF AsciiModem LOW Tone Hz High Tone Hz Shift HzVerifying Operation Status Mode Switching With the Mode CommandMFJ-1278B MULTI-MODE Basic Operation Operational Modes Radio Port Switching Memory BuffersLoading the Memory Buffers Transmitting the Memory BuffersBuffer Serial Numbering BUF1 The QTH here is Starkville, Mississippi. EnterMemory Repeat and Buffer Repeat Time Chaining the Memory BuffersBuftime 15 Enter Buftime toMFJ-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 K5FLUCmd Disconne DisconnectedDigipeating AD7ICmd Connect N2WX VIA AD7I Cmd Connect N2WX VIA NK6K, KV7DUnsuccessful Connections Monitoring Channel ActivityRetry count exceeded DisconnectedAD7I WA7GXD N2WX NK6K KV7B WB6YMHWD0ETZ,KV7BMheard Enter Your First Packet QSO Starting the QSOCmd Connect WB0QRP Connected to WB0QRPCmd Connect WB0QRP VIA K5FLU CTRL-CCmd Connect K5FLU VIA WB0QRP Cmd Command 5 was $03 Monitoring on the AirSpecial Input Characters Cmd Monitor on Cmd Mcon on Cmd ConversCmd 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 PactorMode PT Enter FEC Unproto operationMFJ Pactor $2c-1022 free pcmd Mycall n EnterChangeover MonitoringExiting Pactor Mode Threshold Control SettingTxdelay TXD Monitoring Amtor ARQ requestsPactor Feature Definitions Digital Memory ARQConnect SPEEDup/SPEEDdownPactor Status Indicators Status IndicatorAmtor Detection in Pactor STA CONMemory Size # of Slots Bytes Avail Setting Up your Pactor MailboxMFJ-1278B MULTI-MODE Basic Operation Pactor Mailbox MFJ Pactor $2c-1022 free Mailbox on EnterMailbox Ready Free de callsign Help, K, L, R, S General OverviewSysop Enter MFJ-1278B MULTI-MODE Basic Operation Slot## t m To From Subject Nn free de callsignHelp, K, L, R, SDetailed Pactor Mailbox Overview SP callEnter Subject Max Characters Send msg Control-Z or /EX on it own line endsEnter ## EnterMessage ## deleted Nn free n Mailbox Help,K, L, R, S Nn free n Mailbox Help, K, L, R, S ## Enter?EH Mailbox MessagesPactor Enter Procedure MFJ-1278B MULTI-MODE Basic Operation CW OperationReceiving CW EnterMSPeed 15 Enter Mode CW,15 EnterTransmitting CW Transmitting from Memory Buffers CW WeightingWeight ### Enter Tuning your Radio Random Code GeneratorCONTROL-C Randomcw OFF EnterSetting Up the for Code Practice Randomcw on EnterCtrl-R Ctrl-TSending CW with External Key Paddle Mspeed 15 EnterMFJ-1278B MULTI-MODE Basic Operation Modulated CW Operation Mode MC EnterRadio Terminal Mode Modulated CW Cmd VHF Rtty Setting Up for Ascii and Rtty OperationMode ## Enter Mode VB,110 Enter Rtty and Ascii ReceivingRtty and Ascii Transmitting Bad?Mode HB,75 Baudot Rtty Operation HintsCommercial Rtty Reception CTRL-TWtgCD SpeedConfidence Factor.SpeedData BitsRXInvert On/OffBaud, 90% Confidence baud used 7 bits, RXInvert Off OK EnterOK Amtor Enter Configuring for Mars Command Mars SettingMode HB,75 Enter Mars OperationMARsmode Command Operating Mars with MultiCom for IBMMarsmode 1- QSO Mode Marsmode 3- Storage ModeMode a ARQ Setting up for Mode a OperationsMode AM Enter MFJ-1278B MULTI-MODE Basic Operation Amtor Operation=Q 2=W 3=E 4=R 5=T 6=Y 7=U 8=I 9=O 0=P Operating Mode aN2WX becomes Nwwx using zone Monitoring Mode A, ARQ Mode B FECSetting up for Mode B FEC Mode B FEC OperationsAmtor Status LED Indicators Myselcal xxxx Enter ARQ xxxx EnterSummary of Amtor Contact Sequence Print on EnterMFJ-1278B MULTI-MODE Basic Operation Navtex Operation Navtex Stations and FrequenciesNavtex Operation Station QTH Station ID Broadcast Time UTCNavtex on Enter Navtex OFF Enter LORAN-COmega Systems Satnav Systems MFJ-1278B MULTI-MODE Basic Operation FAX Operation Faxmode n Enter FAXMODEn Lines per Type of Service Minute SecondFAX Formats FAX Installation FAX FrequencyPrinter Connection LocationsReceiving FAX to the Printer Mode FX EnterReceiving FAX MFJ-1278B MULTI-MODE Basic Operation LF, CR, ESC x x, ESC x x x, nnn character of graphics Display FAX Picture on Computer Screen & Save it to DiskTwo Level FAX Picture Format Multi-level FAX Picture Raw Data Format Multifax on Enter000 001 110 111 White Lightest grey Darkest grey Black Transmitting FAXTwo Level FAX Transmitting 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 FormatsMode TV Enter Receiving Sstv PicturesSstv Printing to the Printer Tvmode n EnterMFJ-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 Transmitting Sstv Pictures Saving Sstv Pictures to DiskTerminating Sstv Printing 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 MnemonicEntering Data-Transfer Modes Converse Mode Connected to callsignTransparent Mode Flow Control XON/XOFF Flow Control Detailed VHF Packet Operation Hardware Flow ControlType-in Flow Control Station IdentificationAutomatic Operations W3IWI-3IDW3IWI/RCmd Beacon Every Unattended OperationsPacket Formatting Commands Affecting Protocol Packet Timing FunctionsTransmit Timing Cmd Unproto QST VIA NK6KKeyup delay = Txdelay + Axdelay * 10 in milliseconds Keyup delay = TXDELAY*10 in millisecondsPacket Timing Retry interval = Frack * 2*n +Wait time = Dwait Wait time = Dwait * 10 + r * TxdelayRadio Baud Rate Special Protocol Timing Monitor FunctionsReal-Time Clock and Time Stamping WB9FLWN7CL C KV7BN2WX DSetting the MFJ-1278B to Normal Operation How do I Invoke Multi-Connect?Conperm UsersEasy-Mail Mailbox Setting Up your Easy-Mail Mailbox Users 1 CRMailbox on CR Sysop CRYour MFJ-1278B will respond with Slot1 PN ToKB5JNZ FromKF5C BBS Bulletin Nn free 0 Mailbox B, E, Help, J, K, L, M, R, S, T Nn free n Mailbox B,E,Help,J,K,L,M,R,S,TMemory Size Number of Banks Paging Sysop any key aborts Paging Sysop any key aborts No answerMailbox Operation TitleSend msg Control-Z or /EX to end Cannot, not yoursSlot## t m To From Subject ## CR Additional Mailbox Features ForwardingCallsign Busy Disconnected Connect requestCALLSIGNChat Mode Eliciting Reverse ForwardsRemote Heard Log SysopIdle Timeout Mailbox CTextAbort Mailbox MessagesYou have new mail ?Mailbox fullNot found None foundSlotting and Acknowledgment Priority DescriptionMFJ-1278B MULTI-MODE Advanced Operation New Parameters Ackprior OnoffSlots n RemarksOther Related Parameters Baud Rate Frack SecondsInitial Parameter Settings Summary What to ExpectFrack ACKTimeMFJ-1278B MULTI-MODE Advanced Operation Using Pktpix Packet Picture TransferPrinting Packet Pictures thru Built-in Printer Port Packet Picture transfer to the computer screenRadio 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 HiscallMFJ-1278B MULTI-MODE Advanced Operation Digipeat Dwait OFFCheck OFF Cmsg Retry MaxframeMFJ-1278B Kiss MODE, TNC-2 MODE, Host Mode Kiss Interface for TCP/IPCommand Function Comments Param ax0Xflow OFF MFJ-1278B MULTI-MODE Operational Commands Command PrefaceEntering Commands MFJ-1278B MULTI-MODE Operational Commands Command ListDefaults Cmd AsdfasdfParameters Beacon EVERY/AFTER nConok on RemarksCmd Conok Y Mode Packet Default OFF Mode FAX/SSTV Default OFF8BITCONV ON/OFF 8LEVELS ON/OFFMode FAX/SSTV DefaultON Mode Amtor Default OFF16LEVELS ON/OFF Aalt ON/OFFMode Packet Default on Acktime nnnn Mode Packet DefaultAlockchar nn Mode CW/MCW Default $15 Ackpriority ON/OFFAltcall ssss Mode Amtor Default blank Ansbstr cccc Mode Amtor Default blankCmd Unproto Qracr Arcvchar nn Mode RTTY/ASCII Default $12Answrqra ON/OFF Speed Confidence Factor. Data Bit RXInvert On/Off Asendcha nn Mode RTTY/ASCII Default $14ASA Aspect n Mode FAX Default Mode All Default on Autobaud ON/OFFAUtolf ON/OFF Mode Pactor Default on Autolf ON/OFFAwlen n Mode All Default Autotrac ON/OFFAxhang Axdelay nAX25L2V2 ON/OFF Bbsmsgs ON/OFF Message Effect When Bbsmsgs onAxhang n Beacon Everyafter n Mode Packet Default Every Bkondel ON/OFF Bkondel onBLP ON/OFF Conmode TRANS/CONVParity AwlenBudlist ON/OFF Btext textMailbox on line. Messages for WB9FLW, AD7I, K9NG Buftime n BUF nBufkey nnn Space Bwnl ON/OFFCalira Calset n Canline nCancel Display Output Canpac nCBell ON/OFF Mode Pactor DefaultOFF Cbell ON/OFFOFF BELL*** Connected to callsignMode Rtty Default on Ccitt ON/OFFChange ChatCHECKV1 ON/OFF CHObell ON/OFF Mode Pactor Default onCheck n CMDchr nnn 0=nn=255 Mode Pactor Default $03 Connect callsign Cmdtime nTNC Conperm ON/OFF Cmsg ON/OFF Cmsgdisc ON/OFFCommand n Trans Conmode CONVERS/TRANSConvers Call2 Connect WA7GXD VIA N0ADI-1,WD0ETZCall station busy Conok ON/OFFConnect request call Converse Constamp ON/OFFConnected to N2WX 05/28/85 Cpactime ON/OFF CR ON/OFFCtext text TextIm not here right now, but you may leave a message CstatusCwcall ssss Mode Amtor Default blank CWidmode nn 0=nn=255 Mode Pactor DefaultCwspeedm ON/OFF Cwsendch nnn Mode CW Default$FFMode CW Default OFF Daytime date&time YymmddhhmmCmd Daytime Cmd Daytime 02/29/84Dayusa ON/OFF Delay nn Deadtime nnnDiddle ON/OFF Mode ASCII/RTTY Default onDelete ON/OFF Digipeat ON/OFF DisconneDisplay class AsyfrerrAsyqover AsyrxovrBbfailed DigisentHovrerr HundrerrRxerrors RxlenerrRxresync SentfrmrDwait n EAa ON/OFF Mode Pactor Default onDisplay Mode CW/RTTY/ASCII Default OFF EAS ON/OFFEasin ON/OFF Echo ON/OFFECho ON/OFF Mode Pactor Default on Parameter ERrstrin cccc Mode Pactor DefaultMode Amtor Default on Epson ON/OFFEscape ON/OFF Mode Packet Default OFF ParametersEXActcal ON/OFF Mode Pactor DefaultON Farnswor ON/OFF Faxeop ON/OFFMode FAX Default OFF Faxneg ON/OFFFaxrev ON/OFF FECForward FLow ON/OFF Mode Pactor Default onFlow ON/OFF Fulldup ON/OFF Graphlf Onoff Headerln ON/OFFKV7DN2WX Go ahead and transfer the file N2WXKV7DHealled ON/OFF HID ON/OFFIDTime nnn Kiss ON/OFF Mode Mailbox Default OFFKilonfwd ON/OFF Lcok Onoff Lc callsignLcalls call1,call2...,call8 LEdmode 0/1 Mode Pactor Default LFadd ON/OFF Mode Pactor Default OFFMode ASCII/Packet Default OFF Lfadd OnoffLfaddalt ON/OFF Lfignore ON/OFFListen Mode Amtor Immediate CommandMAILbox ON/OFF Mode Pactor Default OFF Mailbox ON/OFF Mailled ON/OFF Mall ON/OFFMarsmode n TX Translations@ Bell \ Null Figs Ltrs Bell NullMatch ON/OFF MAXDown nnn Mode Pactor DefaultMaxframe n Mode Packet Default Mbegin cccc Mode Amtor Default MAXSum nn Mode Pactor DefaultMAXUp nnn Mode Pactor Default Mcom ON/OFF Mcon ON/OFFMctext text Mend cccc Mode Amtor Default nnnnMfilter n1,n2,n3,n4 Mode Packet Default none Mhclear MheardMode MNONAX25 ON/OFFN2WXW5FD-3 Im ready to transfer the file now Monitor ON/OFF Mode Pactor Default onMonitor ON/OFF Mrpt ON/OFF WB9FLWAD7I,K9NG*,N2WX-7Hi PaulWB9FLWAD7IHi Paul Mspeed nMtimeout n Mstamp ON/OFFMultifax ON/OFF Mycall call-nMYcall callsign Mode Pactor Default Mfjpactr Myalias call-n Mode Packet Default blankMyselcal ssss Myhierad Text Mode Mailbox DefaultMymcall callsign Navtex ON/OFF Mode Navtex DefaultOFFNavstn Text Mode Navtex Default ALL Newmode ON/OFF NavmsgLORAN-C NO200 ON/OFF Mode Pactor Default OFFNodeforw node Mode Mailbox Default Nodepath text string Mode Mailbox Default Cmd Nodepath C KB4VOL Cmd Nodeforw PSL5Nomode ON/OFF Nucr ON/OFFNulls n Omlc ON/OFF Paclen n Mode Packet DefaultPactime Everyafter n Mode Packet Default After Pass n Mode Packet Default $16 CTRL-V CTRL-CPassall ON/OFF Syn Pixtones nWhite Lt gray Dark gray Black Area TransmitTones Hz Pixtones Values HEXFAX/SSTV Pktpix ON/OFF Mode Packet Immediate CommandEntering transparent mode for packet-pix reception Printtes Printgra ON/OFFPrinter ON/OFF PTOver nnn 0=nn=255 Mode Pactor Default $19 PTSendRandomcw ON/OFF QRTRadio n Rbitmask $xx Mode RTTY/ASCII Default Reconnect call1 VIA call2,call3...,call9 Mode PacketRemsysop call-n Mode Mailbox Default Blank Redispla nReset Resptime n Mode Packet DefaultRestore RestartRetry n RETries nnn 0=nn=255 Mode Pactor DefaultRevflim call-n Mode Mailbox Default RFE ON/OFF Rinv ON/OFFRxblock ON/OFF $FFPID DataRxbright n Rxbr n TVBreak ValuesRxcal Calset Adjustment & Location Map Rvfalway ON/OFF Rxinvert ON/OFFSerialno n Mode CW Default Setup Modem Default Baud Rate Speed/ FormatSstv Sfnl ON/OFFSlots nnn Mode Packet Default Solf ON/OFFSrxall ON/OFF Start nSTatus StatusStop n Streamca ON/OFF Streamsw n Streamdb OnoffThis is a test Timedcmd text string Mode Mailbox Default Timedmin n Mode Mailbox DefaultMailbox String- max 119 charsKV7BCQ,KF7B*this is a test message TRace ON/OFF Mode Pactor Default OFFTrace ON/OFF ModePacket Default OFF Trflow ON/OFFTuneproc Tries n Mode Packet Default NoneTune Tvhsync ON/OFF Tvbreaks n Mode Sstv Default see belowMode Sstv Default OFF Tvmode n Mode Sstv Immediate Command Txdelay n Mode Packet Default TVX ON/OFFTXDelay n Mode Pactor Default 2 60ms Txdelayc nnnTxdelayc = Radio-PTT-delay-time / Time-per-character Baud Rate Time-per-characterTxdiddle ON/OFF Txinvert ON/OFF Txtmo n Mode Packet DefaultTxflow ON/OFF U2 UNproto Txuiframe ON/OFFU1 UNproto Unshift ON/OFF URepeats nn Mode Pactor DefaultUsers n Mode Packet Default Visticks nnnn Mode Sstv Default0 Defaults Nibble ToneWAitdisc nn Mode Pactor Default Weight n Mode CW DefaultWdmode ON/OFF WRUXoff n Mode All Default $13 Xmitok ON/OFFXON n XOff nnXOn nn Was BbRAM loaded with defaultsPacket Messages MFJ-1278B MULTI-MODE System Messages Too many packets outstanding? Expected bank n....x Message savedCommand 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 sentFrmr rcvd LINKOUTOFORDER, possible datalossopt.daytime stampMFJ-1278B Specifications MFJ-1278B MULTI-MODE HardwarePower Required General DescriptionBbRAM ProtocolDividers and Baud-rate Generator Detailed Circuit DescriptionOscillator CPU Complex Serial InterfaceModem Watch-dog TimerPower Supply RS-232C Handshaking Protocol MFJ-1278B MULTI-MODE Hardware MFJ-1278B MULTI-MODE Hardware Jumper Functions Jumper # Position FunctionJMP16 JMP17JMP18 JMP19Jmpb JmpcJmpd JmpeParallel Printer Port PIN FUNCTION,J12 Printer Port Pin # Pin FunctionJ5 Pin # Pin Function External Modem Interface Connector J14 J13 Pin # Pin FunctionMFJ-1278B MULTI-MODE Hardware Modem Disconnect HEADER, J4 Pin 1 Carrier Detect InputPin 2 Carrier Detect Output Pin 3 SIO Special Interrupt InputPin 5 SIO RTS Output Pin 6 Transmitter Key InputPin 7 Connect Status Output Pin 8 Unacknowledged Packets Pending Status OutputHF Tuning Indicator MFJ-1278B MULTI-MODE Troubleshooting General TestsObvious Problems Assembly ProblemsSpecific Symptoms Cabling ProblemsSymptom TNC appears dead Oscillator and Reset CircuitsSymptom Modem wont calibrate or key transmitter Symptom MFJ-1278B wont sign on to the terminal Terminal Interface TroubleshootingSymptom Uncopyable transmitted or received packets Symptom The MFJ-1278B signs on OK but wont accept commands Physical Layer Data Link LayerMFJ-1278B MULTI-MODE Packet Radio Protocol Hdlc FramesAX.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 RadiosTable A-1.2Other Radio Connections MFJ-1278B MULTI-MODE Appendix B Modem Calibration MODULATOR/DEMODULATOR Frequency CalibrationCalibration Method Test equipment neededMultilevel xmit...1900 Multilevel demod 307 154KHz 1550 Hz 106 2250 Hz 70Demodulator Alignment R79Calibration Procedure = INT 525000 / Flow + Comprehensive Alignment ProcedureSet Modulator Tones Using Built-in Calibration Software Demodulator Center Frequency Alignment = INT 525000 / Fhigh +Tuning Indicator Alignment Alignment ProcedureMFJ-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 CRMFJ-1278B MULTI-MODE Appendix C Audio Output Radio 2 CRMFJ-1278B MULTI-MODE Appendix D HF Radio HF Radio Alignment First Method Noise Average FrequencyFc = Flow+Fhigh/2 Page MFJ-1278B MULTI-MODE Appendix E Converting to TNC-2 BPS Packet Setup Mode VP,2400 CRBPS Receive Audio Setting BPS Transmit Audio SettingMFJ-1278B MULTI-MODE Appendix F 2400 BPS Packet CN-6 Jumper Position Transmit Audio Range no loadJMP13 JMP14MFJ-1278B MULTI-MODE Appendix G Jumper Functions JmpaJmpz Fig. G-1 Jumper Connector Location MFJ-1278B MULTI-MODE Appendix H Command Summary AcktimeBLP Conperm Deadtime FEC Lfignore Mrpt Pactime Retry Timedmin Users RESISTORS, 1/4 WATT, 5% MFJ P/NDescrpition Component ID 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 CeramicCapacitors MYLAR, 50V/100V Capacitors ElectrolyticICS Capacitor Other TypesIC Sockets LOW Profile Do not use 74HCT14 for these ICs DIODES/LEDS TransistorsConnectors Voltage RegulatorMiscellaneous For Installing Cover Display PC Board AssemblyGrayscale PC Board Assembly Mounting NUT for R131Addition Parts for MFJ-1278BT only BOM for Display PC Assembly P/NThis is to Insure Good Contact with Chassis Reduce EMI Trimpot 15 Turns, Bourns or Equal BOM for Grayscale PC Assembly P/NResistors 1/8W, 1% Descrpition Component ID Capacitor Monolithic Ceramic Capacitor ElectrolyticIC Sockets ICsRESISTOR, 1/4 WATT, 5% RESISTOR, 1/8 WATT, 1% RESISTOR, NETWORK, SINGLE-ON-LINE, IsolatedRESISTOR, Trim POT, Single TURN, MINIATURE, Horzontal Capacitors Disc CeramicDiodes CENTER, TOP ENTRY,10 POS CN1 Dual ROW Socket Connector CENTER, Right Angle JMP 14B POS. HeaderCENTER, 3 POS. Header POS. Shorting Jumer for CN6Manual Index MFJ-1278B MULTI-MODE Manual IndexAutotrac 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 CwspeedmMFJ-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