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Epson MFJ-1278B manual Calset Values for Various Modulator Tone Frequencies, Calset #

Models: MFJ-1278B

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MFJ-1278B MULTI-MODE APPENDIX B MODEM CALIBRATION

Calset Values for Various Modulator Tone Frequencies

Tone	CALSET #	Adjust	Modem / Remarks
2125	247	R106	HF Packet & RTTY
			Fc = 2200 Hz
2295	229	R105	170 Hz shift

1300	404	R78	Packet / Fc = 1700 Hz, 800 Hz shift. CCITT V.23 std.,
			preferable for HF 1200 baud, works well on VHF FM too.
2100	250	R77

1200	438	R78	Packet / 1000 Hz shift standard. Too wide to fit comfortably
			through SSB filters for linear mode 1200 baud use

2200	240	R77

2125	248	R122	VHF RTTY
			Fc = 2550 Hz
2975	177	R119	850 Hz shift

750	701	R139	CW
775	678	R139	CW
800	657	R139	CW
825	637	R139	CW
700	751	R139	CW / SSTV
1500	351	R138	SSTV

2178	242	R122	HF RTTY/ASCII/AMTOR Fc = 2220 Hz
2263	233	R119	850 Hz shift.

1275	412	R122	Low Tone RTTY (European Standard); 170Hz shift
1445	364	R119	Fc = 1360Hz.

Image 343

Epson MFJ-1278B manual Calset Values for Various Modulator Tone Frequencies, Calset #

Contents

Table of Contents FSK Connection Getting Started Connect Advanced Packet Operation Navtex OperationFAX Operation Slow Scan Television Operation125 HF Tuning Indicator MFJ-1278B SpecificationsMULTI-LEVEL Interface CONNECTOR,J13 External Modem Interface Connector J14MFJ-1278B/1278BT Parts List CW Modem TUNE-UP ProcedureBPS Packet Setup Command SummaryMFJ-1278B MULTI-MODE Table of Contents MFJ-1278B MULTI-MODE Introduction MFJ-1278B MULTI-MODE Introduction MFJ-48BE Items supplied with MFJ-1278B/MFJ-1278BT packageMFJ Starter Packs MFJ-1278B MULTI-MODE Computer InterfacingManufacturer Model Serial Port SignalsPin Signal Name Description Serial port signals required by MFJ-1278BHsko Hski Computer with Specific Serial InterfacesApple Macintosh Macintosh MFJ-1278B Pin DB-25P DB-9PIBM PCjr Commodore C64, C128 and VIC-20Color Computer DB-25P Radio Shack Color ComputerColor Computers IBM PC/XT/AT/386/486 and compatibles ComputerMFJ-1278B RS-232C Computer RS-232C Other Computers with Nonstandard Serial PortsCompatibility Terminal Apple II, II+, IIe, IIcMacTerm Parameters for MFJ-1278B IBM and Compatible Computers RS-232C Pin Designations MFJ-1278B Serial Port PIN FunctionsRadio Shack Model 100/102 and NEC Pin # Mnemonic NameAutobaud Computer Baud RateChanging Terminal Baud Rate MFJ ENTERPRISES, INC. Model MFJ-1278B BbRAMLOAD with Defaults aMFJ-1278B DB-25 Name Printer Port Pin # Printer Port ConnectionPrinter Port Test Printer ConsiderationType Printtes CR MFJ-1278B Radio Ports MFJ-1278B MULTI-MODE Radio InterfacingRadio Connector Pin Diagram HT Special Keying Circuit Method 1 Direct Connection to Microphone and Speaker Transmit Audio Level Adjustment for Method I InterfaceCalibra Setting the Receiver Audio Input Level Accessory Jack Interface Method 2 Accessory Jack or Interface Box ConnectionExternal Interface Box Transmit Audio Level Adjustment for Interface Method Important Note Harmonics Interference Receiver Audio SettingPage Keying Connection MFJ-1278B MULTI-MODE Radio Interfacing CW InstallationKey Paddle Connection FSK Cable MFJ-1278B MULTI-MODE Radio Interfacing FSK ConnectionMFJ-1278B MULTI-MODE Basic Operation Getting Started Basic CommandsFirst Steps Mycall was Nocall cmd Serial Port ConfigurationMFJ-1278B MULTI-MODE Basic Operation Mycall K5FLUEchos Parity and Word LengthParity 1 or Parity New Lines and Line Wrapping LOW Tone Hz High Tone Hz Shift Hz Modem Operation ModesAMTOR, Navtex VHF RTTY, VHF Ascii ModemMFJ-1278B MULTI-MODE Basic Operation Operational Modes Mode Switching With the Mode CommandVerifying Operation Status Memory Buffers Radio Port SwitchingBUF1 The QTH here is Starkville, Mississippi. Enter Loading the Memory BuffersTransmitting the Memory Buffers Buffer Serial NumberingBuftime to Memory Repeat and Buffer Repeat TimeChaining the Memory Buffers Buftime 15 EnterMFJ-1278B MULTI-MODE Basic Operation Tuning Indicator Cmd Fulldup on Cmd Connect K5FLU Connecting and Disconnecting ExerciseMFJ-1278B MULTI-MODE Basic Operation Packet Operation VHF PacketDisconnected Cmd DisconneCmd Connect N2WX VIA NK6K, KV7D DigipeatingAD7I Cmd Connect N2WX VIA AD7IDisconnected Unsuccessful ConnectionsMonitoring Channel Activity Retry count exceededMheard Enter WB6YMHWD0ETZ,KV7BAD7I WA7GXD N2WX NK6K KV7B Connected to WB0QRP Your First Packet QSOStarting the QSO Cmd Connect WB0QRPCmd Connect K5FLU VIA WB0QRP CTRL-CCmd Connect WB0QRP VIA K5FLU Cmd Monitor on Cmd Mcon on Cmd Convers Cmd Command 5 was $03Monitoring on the Air Special Input CharactersRedispla Cmd Hi, John, how are you?CTRL-X\Hi, John, how are you? CanlinePage HF Packet Operation Hints Pactor What is Pactor?MFJ-1278B MULTI-MODE Basic Operation Pactor Pactor OperationMycall n Enter Mode PT EnterFEC Unproto operation MFJ Pactor $2c-1022 free pcmdMonitoring ChangeoverMonitoring Amtor ARQ requests Exiting Pactor ModeThreshold Control Setting Txdelay TXDDigital Memory ARQ Pactor Feature DefinitionsSPEEDup/SPEEDdown ConnectSTA CON Pactor Status IndicatorsStatus Indicator Amtor Detection in PactorMFJ-1278B MULTI-MODE Basic Operation Pactor Mailbox Setting Up your Pactor MailboxMemory Size # of Slots Bytes Avail Mailbox on Enter MFJ Pactor $2c-1022 freeSysop Enter General OverviewMailbox Ready Free de callsign Help, K, L, R, S MFJ-1278B MULTI-MODE Basic Operation Nn free de callsignHelp, K, L, R, S Slot## t m To From SubjectSP call Detailed Pactor Mailbox OverviewSend msg Control-Z or /EX on it own line ends Enter Subject Max CharactersMessage ## deleted Nn free n Mailbox Help,K, L, R, S ## EnterEnter ## Enter Nn free n Mailbox Help, K, L, R, SPactor Enter Mailbox Messages?EH MFJ-1278B MULTI-MODE Basic Operation CW Operation ProcedureEnter Receiving CWTransmitting CW Mode CW,15 EnterMSPeed 15 Enter Weight ### Enter CW WeightingTransmitting from Memory Buffers Randomcw OFF Enter Tuning your RadioRandom Code Generator CONTROL-CCtrl-T Setting Up the for Code PracticeRandomcw on Enter Ctrl-RMspeed 15 Enter Sending CW with External Key PaddleRadio Terminal Mode Modulated CW Cmd Mode MC EnterMFJ-1278B MULTI-MODE Basic Operation Modulated CW Operation Mode ## Enter Setting Up for Ascii and Rtty OperationVHF Rtty Bad? Mode VB,110 EnterRtty and Ascii Receiving Rtty and Ascii TransmittingBaudot Rtty Operation Hints Mode HB,75CTRL-T Commercial Rtty ReceptionOK Enter WtgCDSpeedConfidence Factor.SpeedData BitsRXInvert On/Off Baud, 90% Confidence baud used 7 bits, RXInvert OffOK Amtor Enter Mars Operation Configuring for MarsCommand Mars Setting Mode HB,75 EnterOperating Mars with MultiCom for IBM MARsmode CommandMarsmode 3- Storage Mode Marsmode 1- QSO ModeMFJ-1278B MULTI-MODE Basic Operation Amtor Operation Mode a ARQSetting up for Mode a Operations Mode AM EnterN2WX becomes Nwwx using zone Operating Mode a=Q 2=W 3=E 4=R 5=T 6=Y 7=U 8=I 9=O 0=P Mode B FEC Operations Monitoring Mode A, ARQMode B FEC Setting up for Mode B FECAmtor Status LED Indicators ARQ xxxx Enter Myselcal xxxx EnterPrint on Enter Summary of Amtor Contact SequenceStation QTH Station ID Broadcast Time UTC MFJ-1278B MULTI-MODE Basic Operation Navtex OperationNavtex Stations and Frequencies Navtex OperationNavtex on Enter Omega Systems Satnav Systems LORAN-CNavtex OFF Enter MFJ-1278B MULTI-MODE Basic Operation FAX Operation FAX Formats FAXMODEn Lines per Type of Service Minute SecondFaxmode n Enter Locations FAX InstallationFAX Frequency Printer ConnectionReceiving FAX Mode FX EnterReceiving FAX to the Printer MFJ-1278B MULTI-MODE Basic Operation Two Level FAX Picture Format Display FAX Picture on Computer Screen & Save it to DiskLF, CR, ESC x x, ESC x x x, nnn character of graphics Multifax on Enter Multi-level FAX Picture Raw Data FormatTwo Level FAX Transmitting Transmitting FAX000 001 110 111 White Lightest grey Darkest grey Black Multi-level FAX Transmitting MFJ-1278B MULTI-MODE Basic Operation FAX/SSTV Transmit Tones Hz Creating FAX Pictures for TransmittingPixtones Values HEXPage TVMODEn Formats Sstv InstallationSstv Formats Printer ConnectionTvmode n Enter Mode TV EnterReceiving Sstv Pictures Sstv Printing to the PrinterMFJ-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 Terminating Sstv Printing Saving Sstv Pictures to DiskTransmitting Sstv Pictures Creating Sstv Pictures for Transmitting MFJ-1278B MULTI-MODE Basic Operation Special Characters Dec Hex Control Mnemonic Command ModeMFJ-1278B MULTI-MODE Advanced Operation Packet Operating ModesEntering Data-Transfer Modes Connected to callsign Converse ModeTransparent Mode Flow Control XON/XOFF Flow Control Station Identification Detailed VHF Packet OperationHardware Flow Control Type-in Flow ControlW3IWI-3IDW3IWI/R Automatic OperationsPacket Formatting Unattended OperationsCmd Beacon Every Cmd Unproto QST VIA NK6K Commands Affecting ProtocolPacket Timing Functions Transmit TimingRetry interval = Frack * 2*n + Keyup delay = Txdelay + Axdelay * 10 in millisecondsKeyup delay = TXDELAY*10 in milliseconds Packet TimingRadio Baud Rate Wait time = Dwait * 10 + r * TxdelayWait time = Dwait Monitor Functions Special Protocol TimingWB9FLWN7CL C KV7BN2WX D Real-Time Clock and Time StampingUsers Setting the MFJ-1278B to Normal OperationHow do I Invoke Multi-Connect? ConpermEasy-Mail Mailbox Sysop CR Setting Up your Easy-Mail MailboxUsers 1 CR Mailbox on CRYour MFJ-1278B will respond with Slot1 PN ToKB5JNZ FromKF5C BBS Bulletin Memory Size Number of Banks Nn free n Mailbox B,E,Help,J,K,L,M,R,S,TNn free 0 Mailbox B, E, Help, J, K, L, M, R, S, T Paging Sysop any key aborts No answer Paging Sysop any key abortsTitle Mailbox OperationCannot, not yours Send msg Control-Z or /EX to endSlot## t m To From Subject ## CR Connect requestCALLSIGN Additional Mailbox FeaturesForwarding Callsign Busy DisconnectedSysop Chat ModeEliciting Reverse Forwards Remote Heard LogMailbox Messages Idle TimeoutMailbox CText AbortNone found You have new mail?Mailbox full Not foundDescription Slotting and Acknowledgment PriorityMFJ-1278B MULTI-MODE Advanced Operation Ackprior Onoff New ParametersRemarks Slots nBaud Rate Frack Seconds Other Related ParametersACKTime Initial Parameter Settings SummaryWhat to Expect FrackMFJ-1278B MULTI-MODE Advanced Operation Packet Picture transfer to the computer screen Using PktpixPacket Picture Transfer Printing Packet Pictures thru Built-in Printer PortRadio 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 Hiscall Yourcall CQMFJ-1278B MULTI-MODE Advanced Operation Maxframe DigipeatDwait OFF Check OFF Cmsg RetryKiss Interface for TCP/IP MFJ-1278B Kiss MODE, TNC-2 MODE, Host ModeParam ax0 Command Function CommentsEntering Commands MFJ-1278B MULTI-MODE Operational Commands Command PrefaceXflow OFF Cmd Asdfasdf MFJ-1278B MULTI-MODE Operational CommandsCommand List DefaultsBeacon EVERY/AFTER n ParametersCmd Conok Y RemarksConok on 8LEVELS ON/OFF Mode Packet Default OFFMode FAX/SSTV Default OFF 8BITCONV ON/OFFAalt ON/OFF Mode FAX/SSTV DefaultONMode Amtor Default OFF 16LEVELS ON/OFFAckpriority ON/OFF Mode Packet Default onAcktime nnnn Mode Packet Default Alockchar nn Mode CW/MCW Default $15Ansbstr cccc Mode Amtor Default blank Altcall ssss Mode Amtor Default blankAnswrqra ON/OFF Arcvchar nn Mode RTTY/ASCII Default $12Cmd Unproto Qracr ASA Asendcha nn Mode RTTY/ASCII Default $14Speed Confidence Factor. Data Bit RXInvert On/Off Aspect n Mode FAX Default Autobaud ON/OFF Mode All Default onAutolf ON/OFF AUtolf ON/OFF Mode Pactor Default onAutotrac ON/OFF Awlen n Mode All DefaultAX25L2V2 ON/OFF Axdelay nAxhang Axhang n Message Effect When Bbsmsgs onBbsmsgs ON/OFF Beacon Everyafter n Mode Packet Default Every Bkondel on Bkondel ON/OFFAwlen BLP ON/OFFConmode TRANS/CONV ParityMailbox on line. Messages for WB9FLW, AD7I, K9NG Btext textBudlist ON/OFF Bufkey nnn BUF nBuftime n Calira Bwnl ON/OFFSpace Canline n Calset nCanpac n Cancel Display OutputBELL*** Connected to callsign CBell ON/OFF Mode Pactor DefaultOFFCbell ON/OFF OFFChat Mode Rtty Default onCcitt ON/OFF ChangeCheck n CHObell ON/OFF Mode Pactor Default onCHECKV1 ON/OFF CMDchr nnn 0=nn=255 Mode Pactor Default $03 TNC Cmdtime nConnect callsign Conperm ON/OFF Cmsgdisc ON/OFF Cmsg ON/OFFCommand n Convers Conmode CONVERS/TRANSTrans Connect WA7GXD VIA N0ADI-1,WD0ETZ Call2Connect request call Conok ON/OFFCall station busy Connected to N2WX 05/28/85 Constamp ON/OFFConverse CR ON/OFF Cpactime ON/OFFCstatus Ctext textText Im not here right now, but you may leave a messageCWidmode nn 0=nn=255 Mode Pactor Default Cwcall ssss Mode Amtor Default blankMode CW Default OFF Cwsendch nnn Mode CW Default$FFCwspeedm ON/OFF Cmd Daytime 02/29/84 Daytime date&timeYymmddhhmm Cmd DaytimeDayusa ON/OFF Deadtime nnn Delay nnDelete ON/OFF Mode ASCII/RTTY Default onDiddle ON/OFF Disconne Digipeat ON/OFFAsyrxovr Display classAsyfrerr AsyqoverHundrerr BbfailedDigisent HovrerrSentfrmr RxerrorsRxlenerr RxresyncDisplay EAa ON/OFF Mode Pactor Default onDwait n Echo ON/OFF Mode CW/RTTY/ASCII Default OFFEAS ON/OFF Easin ON/OFFEpson ON/OFF ECho ON/OFF Mode Pactor Default on ParameterERrstrin cccc Mode Pactor Default Mode Amtor Default onEXActcal ON/OFF Mode Pactor DefaultON Mode Packet Default OFF ParametersEscape ON/OFF Faxeop ON/OFF Farnswor ON/OFFFEC Mode FAX Default OFFFaxneg ON/OFF Faxrev ON/OFFFlow ON/OFF FLow ON/OFF Mode Pactor Default onForward Fulldup ON/OFF N2WXKV7D Graphlf OnoffHeaderln ON/OFF KV7DN2WX Go ahead and transfer the fileHID ON/OFF Healled ON/OFFIDTime nnn Kilonfwd ON/OFF Mode Mailbox Default OFFKiss ON/OFF Lcalls call1,call2...,call8 Lc callsignLcok Onoff LFadd ON/OFF Mode Pactor Default OFF LEdmode 0/1 Mode Pactor DefaultLfignore ON/OFF Mode ASCII/Packet Default OFFLfadd Onoff Lfaddalt ON/OFFMAILbox ON/OFF Mode Pactor Default OFF Mode Amtor Immediate CommandListen Mailbox ON/OFF Mall ON/OFF Mailled ON/OFFBell Null Marsmode nTX Translations @ Bell \ Null Figs LtrsMaxframe n Mode Packet Default MAXDown nnn Mode Pactor DefaultMatch ON/OFF MAXUp nnn Mode Pactor Default MAXSum nn Mode Pactor DefaultMbegin cccc Mode Amtor Default Mcon ON/OFF Mcom ON/OFFMfilter n1,n2,n3,n4 Mode Packet Default none Mend cccc Mode Amtor Default nnnnMctext text MNONAX25 ON/OFF MhclearMheard ModeMonitor ON/OFF Monitor ON/OFF Mode Pactor Default onN2WXW5FD-3 Im ready to transfer the file now Mspeed n Mrpt ON/OFFWB9FLWAD7I,K9NG*,N2WX-7Hi Paul WB9FLWAD7IHi PaulMstamp ON/OFF Mtimeout nMycall call-n Multifax ON/OFFMyalias call-n Mode Packet Default blank MYcall callsign Mode Pactor Default MfjpactrMymcall callsign Myhierad Text Mode Mailbox DefaultMyselcal ssss Navstn Text Mode Navtex Default ALL Mode Navtex DefaultOFFNavtex ON/OFF LORAN-C NavmsgNewmode ON/OFF Nodeforw node Mode Mailbox Default Mode Pactor Default OFFNO200 ON/OFF Nucr ON/OFF Nodepath text string Mode Mailbox DefaultCmd Nodepath C KB4VOL Cmd Nodeforw PSL5 Nomode ON/OFFNulls n Pactime Everyafter n Mode Packet Default After Paclen n Mode Packet DefaultOmlc ON/OFF CTRL-V CTRL-C Pass n Mode Packet Default $16Passall ON/OFF White Lt gray Dark gray Black Area Pixtones nSyn FAX/SSTV Pixtones Values HEXTransmitTones Hz Entering transparent mode for packet-pix reception Mode Packet Immediate CommandPktpix ON/OFF Printer ON/OFF Printgra ON/OFFPrinttes PTSend PTOver nnn 0=nn=255 Mode Pactor Default $19Radio n QRTRandomcw ON/OFF Reconnect call1 VIA call2,call3...,call9 Mode Packet Rbitmask $xx Mode RTTY/ASCII DefaultRedispla n Remsysop call-n Mode Mailbox Default BlankRestart ResetResptime n Mode Packet Default RestoreRevflim call-n Mode Mailbox Default RETries nnn 0=nn=255 Mode Pactor DefaultRetry n Rinv ON/OFF RFE ON/OFFData Rxblock ON/OFF$FF PIDRxbr n TVBreak Values Rxbright nRxcal Calset Adjustment & Location Map Rxinvert ON/OFF Rvfalway ON/OFFSerialno n Mode CW Default Sfnl ON/OFF SetupModem Default Baud Rate Speed/ Format SstvSolf ON/OFF Slots nnn Mode Packet DefaultStatus Srxall ON/OFFStart n STatusStop n Streamca ON/OFF This is a test Streamdb OnoffStreamsw n String- max 119 chars Timedcmd text string Mode Mailbox DefaultTimedmin n Mode Mailbox Default MailboxTrace ON/OFF TRace ON/OFF Mode Pactor Default OFFKV7BCQ,KF7B*this is a test message Trflow ON/OFF ModePacket Default OFFTune Tries n Mode Packet Default NoneTuneproc Mode Sstv Default OFF Tvbreaks n Mode Sstv Default see belowTvhsync ON/OFF Tvmode n Mode Sstv Immediate Command TVX ON/OFF Txdelay n Mode Packet DefaultBaud Rate Time-per-character TXDelay n Mode Pactor Default 2 60msTxdelayc nnn Txdelayc = Radio-PTT-delay-time / Time-per-characterTxdiddle ON/OFF Txflow ON/OFF Txtmo n Mode Packet DefaultTxinvert ON/OFF U1 UNproto Txuiframe ON/OFFU2 UNproto Users n Mode Packet Default URepeats nn Mode Pactor DefaultUnshift ON/OFF Defaults Nibble Tone Visticks nnnn Mode Sstv Default0WRU WAitdisc nn Mode Pactor DefaultWeight n Mode CW Default Wdmode ON/OFFXmitok ON/OFF Xoff n Mode All Default $13XOn nn XOff nnXON n Packet Messages BbRAM loaded with defaultsWas Message saved MFJ-1278B MULTI-MODE System MessagesToo many packets outstanding ? Expected bank n....x?clock not set Command Mode Error Messages?bad ?call?VIA Link Status Messages Frmr frame just sent Frmr sent Connected to call1 VIA call2,call3...,call9Connect requestcall1 VIA call2,call3...,call9 Callsign busyLINKOUTOFORDER, possible datalossopt.daytime stamp Frmr rcvdMFJ-1278B MULTI-MODE Hardware MFJ-1278B SpecificationsProtocol Power RequiredGeneral Description BbRAMOscillator Detailed Circuit DescriptionDividers and Baud-rate Generator Serial Interface CPU ComplexPower Supply Watch-dog TimerModem RS-232C Handshaking Protocol MFJ-1278B MULTI-MODE Hardware Jumper # Position Function MFJ-1278B MULTI-MODE Hardware Jumper FunctionsJMP19 JMP16JMP17 JMP18Jmpe JmpbJmpc JmpdPrinter Port Pin # Pin Function Parallel Printer Port PIN FUNCTION,J12J5 Pin # Pin Function J13 Pin # Pin Function External Modem Interface Connector J14Pin 3 SIO Special Interrupt Input MFJ-1278B MULTI-MODE Hardware Modem Disconnect HEADER, J4Pin 1 Carrier Detect Input Pin 2 Carrier Detect OutputPin 8 Unacknowledged Packets Pending Status Output Pin 5 SIO RTS OutputPin 6 Transmitter Key Input Pin 7 Connect Status OutputHF Tuning Indicator General Tests MFJ-1278B MULTI-MODE TroubleshootingAssembly Problems Obvious ProblemsOscillator and Reset Circuits Specific SymptomsCabling Problems Symptom TNC appears deadSymptom Modem wont calibrate or key transmitter Symptom Uncopyable transmitted or received packets Terminal Interface TroubleshootingSymptom MFJ-1278B wont sign on to the terminal Symptom The MFJ-1278B signs on OK but wont accept commands Data Link Layer Physical LayerHdlc Frames MFJ-1278B MULTI-MODE Packet Radio ProtocolAX.25 Level TWO Code Abbrv Frame Type Disc RNRREJ SabmPage Channel Flow Control Table A-1HOOKUP for Specific Radios MFJ-1278B MULTI-MODE Appendix a Radio HookupTable A-1.2Other Radio Connections Test equipment needed MFJ-1278B MULTI-MODE Appendix B Modem CalibrationMODULATOR/DEMODULATOR Frequency Calibration Calibration MethodMultilevel xmit...1900 R79 Multilevel demod 307 154KHz 1550 Hz 1062250 Hz 70 Demodulator AlignmentCalibration Procedure Set Modulator Tones Using Built-in Calibration Software Comprehensive Alignment Procedure= INT 525000 / Flow + = INT 525000 / Fhigh + Demodulator Center Frequency AlignmentAlignment Procedure Tuning Indicator AlignmentMFJ-1278B MULTI-MODE Appendix B Modem Calibration MFJ-1278B Adjustment Location Map Calset # Calset Values for Various Modulator Tone FrequenciesPage Detailed CW Demodulator Alignment Procedure MFJ-1278B MULTI-MODE Appendix B Modem Calibration MFJ-1278B MULTI-MODE Appendix B Modem Calibration Cali CR Audio Output Level Adjustment ProcedureRadio 2 CR MFJ-1278B MULTI-MODE Appendix C Audio OutputFirst Method Noise Average Frequency MFJ-1278B MULTI-MODE Appendix D HF Radio HF Radio AlignmentFc = Flow+Fhigh/2 Page MFJ-1278B MULTI-MODE Appendix E Converting to TNC-2 Mode VP,2400 CR BPS Packet SetupCN-6 Jumper Position Transmit Audio Range no load BPS Receive Audio SettingBPS Transmit Audio Setting MFJ-1278B MULTI-MODE Appendix F 2400 BPS PacketJMP14 JMP13Jmpa MFJ-1278B MULTI-MODE Appendix G Jumper FunctionsJmpz Fig. G-1 Jumper Connector Location Acktime MFJ-1278B MULTI-MODE Appendix H Command SummaryBLP Conperm Deadtime FEC Lfignore Mrpt Pactime Retry Timedmin Users Descrpition Component ID MFJ P/NRESISTORS, 1/4 WATT, 5% RESISTORS, 1/8 WATT, 1% MFJ-1278B MULTI-MODE Appendix I Parts ListCapacitors MULTI-LAYER, Monolithic Ceramic TRIMPOTS, Bourns or EqualTrim POT Single TURN, Miniature POT 17MM Single TURN, PCB MountCapacitors Electrolytic Capacitors MYLAR, 50V/100VIC Sockets LOW Profile Capacitor Other TypesICS Do not use 74HCT14 for these ICs Transistors DIODES/LEDSVoltage Regulator ConnectorsMiscellaneous Mounting NUT for R131 For Installing CoverDisplay PC Board Assembly Grayscale PC Board AssemblyThis is to Insure Good Contact with Chassis Reduce EMI BOM for Display PC Assembly P/NAddition Parts for MFJ-1278BT only Resistors 1/8W, 1% BOM for Grayscale PC Assembly P/NTrimpot 15 Turns, Bourns or Equal ICs Descrpition Component ID Capacitor Monolithic CeramicCapacitor Electrolytic IC SocketsRESISTOR, 1/4 WATT, 5% Capacitors Disc Ceramic RESISTOR, 1/8 WATT, 1%RESISTOR, NETWORK, SINGLE-ON-LINE, Isolated RESISTOR, Trim POT, Single TURN, MINIATURE, HorzontalDiodes POS. Shorting Jumer for CN6 CENTER, TOP ENTRY,10 POS CN1 Dual ROW Socket ConnectorCENTER, Right Angle JMP 14B POS. Header CENTER, 3 POS. HeaderMFJ-1278B MULTI-MODE Manual Index 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 Cwspeedm CW KEY-INMFJ-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