SG-7200 SMARTMODEM MANUAL SGC catalog number: 56-40 APRIL 1999 VERSION 2 USER MANUAL “No Compromise Communications”
Table of Contents System FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.0 Supplied Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2.0 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2.1 Installation Procedure for SG-2000 . . . . . . . . . . . . . . . . . . . . . . . . . . .2 3.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Uninstalling the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 1.5 Starting the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 2.0 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 2.1 Accessing the Log Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 2.2 Calling CQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 AMTOR Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 8.2.1 FEC Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 8.2.2 ARQ Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 8.2.2.1 Linking to Another Station . . . . . . . . . . . . . . . . . . . . . . . . .34 8.2.2.2 Killing a Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 8.2.2.3 Ending a QSO . . . . . . . .
11.6 Brag Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 11.7 Brag Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 11.8 Setting the Screen Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 11.9 Callbook Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 11.10 Wave File Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18.2 Special Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 18.3 About SGCCOM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 HOST MODE SECTION 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 2.0 Entering Host Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System FEATURES Open Hardware and Software Architecture • Designed for digital communications or as a freestanding general-purpose processor for embedded applications. • Single Board Computer with DOS and Utilities • BIOS and DOS Bootable from Flash Memory. • 25 MHz Intel 386EX processor. • Runs 16 or 32 bit applications. • In-place 512K upgradable Flash Memory for storing resident applications. • DRAM expandable to 16 M using standard 72-pin SIMMs. • PC-104 socket allows for a range of expansion options.
1.0 Supplied Items DC Power cable with 2.1 mm connector one end Audio cable Serial extension cable RS-232 9 conductor M-F DIN 8 pin Plug with cable attached Procomm 2.0 for DOS shareware communications software GUI (Graphical User Interface) V1.66 for Windows Operating System 2.0 Installation Procedure Connect RADIO 1 or RADIO 2 Port of the Modem to your radio using 8 Pin connector (cable supplied). Connect 9 pin straight through cable supplied to HOST COMPUTER connector and a PC comm port.
3.0 Introduction Welcome to the world of advanced multimode DSP communications. The SG7200 SMARTMODEM is designed for flexibility, performance, and affordability all of which are only possible with DSP technology. In addition, the user will recognize an environment that resembles an MS DOS-like systemi . The purpose of this manual is to describe the SG-7200 SMARTMODEM features, operations and configuration details. It is intended to get users on the air and start using the unit quickly.
Illustration Legend D Name Description LED Tuning Display MARK SPACE E F DCD OVL G H I PRDN ON POWER Segmented display with 10 separated LED’s seg ments used to display the tuning status of the sta tion. Displays the mark tone (lower audio fre quency.) Displays the space tone (higher audio frequency.) Data Carrier Detect Overload - indicates an overload condition at the audio input. Power down, or sleep state - for future use. Power indicator. Power switch - powers unit on or off.
Illustration Connection Legend Name D E F G H I J Connection Description Pin Name Pin Description RADIO 2 8-pin DIN for 1 TX Transmit audio out Radio #2 2 GND Frame ground 3 PTT Push to talk 4 RX Received audio out 5 Currently unused 6 FSK OUTFrequency shift keying 7 DOWN Frequency control down 8 UP Frequency control up RX2 1/8” mini jack for audio monitor AUX/FSK 5-pin DIN for 1 FSK-N Freq. shift keying normal auxiliary 2 GND Frame ground connection 3 TX Transmit audio out 4 FSK-R Freq.
nient to update or write to this device - for updates, a special procedure must be followed . The SG-7200 is provided with a main executable code module that provides communications support: NEWTOR.EXE. This code module is stored on the Flash ROM disk and is ready to be loaded into memory for execution. Once loaded, a code module remains active until terminated by the user. The code module is a regular DOS executable file. SG-7200 software supports operation in several digital modes, or protocols.
Teletype (TTY) systems by devising a 7-level code that, for valid characters, provides a constant ratio of four binary ones to three binary zeroes (4:3) in the code pattern. Such a code has the ability to determine whether received data is valid or not. This simple code then allows for a primitive means for data error control in either forward error control (FEC) or automatic repeat request (ARQ) modes.
correct tone polarity. If for any reason, operation is needed for use on lower sideband (LSB) or alternate transmit or receive polarities Identification and SELCALs for ARQ or SELFEC can be any 4 digits, 4 letters, 5 digits, or 9 digits depending on the application. When the SG-7200 is used to participate in CCIR standard “free signal” broadcasting systems, an additional field follows the SELCAL that controls the operation of the free signal. If the SELCAL is 4 letters, these form a CCIR476 call.
•Configure the unit according to the radio mode you plan to use. A:\>REM *****SGC DATA MODEM Version 1.00 February 1997***** A:\>a:NEWTOR.exe ***SG-7200 SMARTMODEM (C) SGC, INC 1997 [V1.2]*** CMD: Figure 1 Screen at Boot-up This above display is the default and is controlled by the contents of the resident AUTOEXEC.BAT file in Flash ROM. The “CMD:” prompt indicates that the NEWTOR program is ready to accept commands. This program controls the Baudot, ASCII, SITOR and AMTOR modes.
7.2 Displaying the Current Setup Once the NEWTOR program displays it’s prompt, display the current setup using the “DIS” command an example of a setup is illustrated below. Date/Time = Mon Sep 26 00:06:27 1988 Radio Port =1, Input Gain =4, Output Atten =0 MYSELCALL=SSGC SELCALL=SSGC AMTOR PERIOD=536870912 SITOR PERIOD=447392427 Operating mode=0 TOR status 176 AMTOR mode Answerback string ... (AAB)=QRA DE SGC BAUDOT bit rate ..... (RBA)=45 ASCII bit rate ..... (RAS)=110 AMTOR Tx delay ......
7.2.1 BAUDOT/ASCII Configuration Baudot or ASCII modes of operation require very similar setup. For Baudot mode, enter “BAU” at the command prompt of the NEWTOR program. For ASCII, enter “ASC”. In addition, it is convenient to initialize the following settings as well. • DAT/TIM - Sets Date and Time • DID - Diddle on or off. • TXT/RXR - Sets transmit and receive polarities. 7.2.2 AMTOR Configuration AMTOR operation is selected by entering AMT at the NEWTOR program’s prompt.
program mode in that it conforms to special kinds of SELCALs. These callsigns are allocated to vessels by international law according to CCIR recommendations and may be composed of 4 letters, 4 digits, 5 digits, or 9 digits. The software automatically changes to either CCIR 476 or CCIR 625 modes to accommodate these different SELCALs. It also automatically detects and sets the correct mode when and ARQ call is established.
also check that JP3 is set in the “BOOT BLOCK PROTECT” position GND side. •Shortly after reset, the Flash programming utility displays: SGC Data Modem Flash Programming Utility V1.0 (c) Copyright 1996,1997 - Oregon Hardware-Software Factory All rights reserved. •This utility has several commands that can be displayed by entering a “?” symbol.
•Turn the modem power off. The FORCE UPDATE jumper, JP5 should now be moved back to the 1-2 position. Apply power and if all went well, the system should run though POST, boot DOS and perform the actions as required in the CONFIG.SYS and AUTOEXEC.BAT files. 9.0 Hardware Overview The SGC SmartModem contains two programmable processing components; an i386EX microprocessor, and a ADSP-2181 DSP.
9.2 ADSP-2181 DSP The ADSP-2181 is a 24-bit instruction, 16-bit data, 33 million instructions per second (MIPS) DSP. The DSP is described in “Analog Devices ADSP-2181 DSP Microcomputer data sheet, Rev. A.” Additional information is provided in the ADSP-2100 Family User’s Manual. 1993. Analog Devices, (Prentice-Hall, ISBN 0-13-006958-2.) The DSP is the heart of the real time signal processing engine - it works in conjunction with an AD1847 16-bit stereo CODEC that forms the interface to the analog world.
Some operating modes such as AMTOR/SITOR or PACTOR, does not make use of the SCC but implements its own bit extraction and protocol handling on the 386 side. 10.0 Appendix From the CMD: prompt, type in the command from the following table. Only the first 3 characters is required, e.g., HEL for HELP. These commands are not case sensitive, which means you can type them as in upper or lower case letters. 10.
Command Command Description DSP DSP commands FEC HEL IGA K L MAU MYS OGA POR QUI R RAS RBA RCV RFE RXR SEL SIT SPE STA TIM Parameters <1> = Rest, <11> = Select modem 1 <12> = Select modem 2 Initiate AMTOR FEC Help Command Set Input Gain 16 steps - from 1-15, each step is +1.5 decibel, max of 22.5. Default = 4 (6 db) Start/continue converse modeKeyboard mode. Shortcut keys: ESC=quit, ^U=ARQ Listen, ^T=ARQ Over, ^V=Force STBY (^ means pressing the CTRL key together with the next character).
Command TIM TXR USO XMI Command Description Set time Set transmit reverse Set Unshift on space Go to transmit (ASCII/BAUDOT) Parameters hh:mm:ss ON =1 OFF =0 Default = 0 ON =1 OFF =0 Default = 0 10.2 Pactor Mode Commands Command Description PAR Start ARQ call. Station ID and remote's callsign need to be ready and cannot be changed on the fly. Set ID with PID and remote’s call sign with PEL commands respectively. PAU Filter output mute. 0 = pass 1 = mute Default = 0 PBK ARQ break-in.
Command Description TAF Test AFSK. Each time TAF is entered, the next state in the markspace-mute cycle is activated. TAT Test/display Pactor status. TIN Test interrupt system. The Pactor modem interrupts the control processor at 1 millisecond intervals – this command counts 1000 interrupts and thus prints a message each second. Used for engineer ing purposes.
Command Description SEC sets the "lcflg" to allows or not disable locally-generated echo. Default = 1 SID sets the TNC’s identification. The ID may be 4 letters, 4 or 5 digits that would make the unit respond in CCIR476 mode. If the ID is 9 digits it will respond in CCIR625 mode. May be set twice, once with a CCIR476 and then with a CCIR625 identification. The TNC will then respond to either call. An optional “/” may follow the ID with two letters followed by an optional two digits.
Command Description SPS DSP Reset STP determines whether or not the transmit polarity needs to be normal or inverted. STP 0, is for normal polarity, STP 1 is for inverted polarity. Default = 0 STS enters a test mode where alternating mark and space are sent. Exit from test with DED, SOL, or SOT commands. TAF tests AFSK by cycling through the various AFSK tones. A new tone is emitted each time the command is executed. TAT reads and displays the 625 status word.
SG-7200 DSP SmartModem Control Program Users Guide Version 1.66 FIRMWARE SECTION 2 22 © 1999 SGC Inc SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA P.O.Box 3526, 98009 Fax: 425-746-6384 or 746-7173 Tel: 425- 746-6310 or 1-800-259 7331 E-mail: sgc@sgcworld.com Web site: http://www.sgcworld.
1.0 Program Setup The following are the steps required to install the SG-7200 control program. This program requires either Window 3.1 or Windows 95. 1.1 Program Requirements This program requires a 386/16mhz or faster CPU, 8 Meg of memory and Windows 3.1 or Windows 95 (preferred). At least 2meg of available hard disk space is required for program installation. 1.2 Installation The following steps should be followed for program installation. 1. Place distribution disk into the floppy drive. 2.
1.4 Uninstalling the Software If necessary to un-install the software, use the Uninstall prompt in the SG-7200 program group. This will remove all program files from the system. 1.5 Starting the software To start the software turn on the modem and wait for it to initialize then select the SG-7200 DSP SmartModem entry in the SGC program group. 2.0 Getting Started Below are outlined the most common first time questions from users.
2.8 Receiving Graphic Files This program supports graphic files in BMP, JPG, PNG or PCX format in PACTOR Mode. It is required for the user to have an external graphics viewing program like LView, Paintshop Pro or other graphics editor that accept command line arguments. For digital use, JPEG format pictures saved with a JPEG quality of 50 to 70 work well. Note that using a higher quality level results in a considerable larger file, which may be difficult to transmit.
Auto CQ. This tool controls the Automatic CQ feature for the program. This button acts like a toggle. The first click enables the CQ feature; the second click disables the CQ feature. This control has the same functional ity as the F5 key. QRT (End QSO). This tool is used to end the current link. It has the same functionality as pressing the END key. ID Control. This tool is used to send the identification text that is defined for the current operating mode.
Paste. Copies the contents of the clipboard to the transmit buffer. This allows the user to copy data from one window or application and immedi ately send it to the TNC. Print. Prints the complete contents of the receive buffer to the printer. About. This control displays the program about box as well as additional information regarding memory and GUI usage. 4.0 File Handling 4.1 Transmit File Using the Transmit File option allows the user to select a file to send to an another station.
FILTERED-Program macros will be inserted or typed over. 4.5 File Transfer Status Window This window shows the current status of any file transfers. This can be brought up onto the screen at any time by pressing F8, to remove this window, press F8 a second time. The two lines indicate transmit file status information. The first field of the status window displays the filename followed by the file size, and transfer statistics for the file. 5.
These macros are supported in both Insertion and Typeover versions. Start Insertion Macros with '~'. Example ~sn Start Typeover Macros with '@'. Example @sn Example (insertion style): Hi, this is ~sn in ~sq Would be sent as: Hi, this is John in Somewhere, Ca 5.3 Other Station Macros The following macros are available to allow you to embed information about the other station into outgoing text.
~OE - ~OR - ~OT - End current ARQ link or QSO after all data is sent. Send no additional data to TNC. Sets TNC to Receive Mode after all data has been sent Send no additional data to TNC. Sets TNC to Transmit Mode 5.6 Time and Date Macros The time and date macros are used to insert the current time and date in various formats. Both local and universal times are supported through the macros. These macros are supported in both insertion and typeover modes.
~Xx ~XX ~Xy ~XY ~XZ the week (00 - 53) Date Time Two-digit year without century (00 to 99) Year with century Time zone name, or no characters if no time zone 5.8 Miscellaneous Macros These macros give the user additional program and controller operation. All macros are available in insertion and typeover modes unless otherwise specified. ~r Appends a carriage return at the current position in the line. This macro is only available in insertion mode. ~f Prints the current frequency from the logbook.
F12 Switch to the next window. This is used when multiple win dows are currently being displayed. CTRL F1 to F10 The CTRL F1 through F10 keys allow the user to transmit a user defined file. These files may be setup in the Setup Menu. 7.0 Printer Support This program offers three methods of printing data. All of these methods use the Windows print spooling to help the program integrate with other Windows applications. 7.
8.1 ASCII / Baudot Operation Baudot operation (also know as RTTY) is a favorite of DXers. This is a non-linked mode of operation and is highly effected by band conditions. It is recommended to use the tightest possible bandwidth filtering on the radio for best results. ASCII is not too often used on the ham bands but does offer a few interesting features, namely it can transmit characters between 0 and 255. 8.1.1 Changing current operating speed Click on the '+' or '-' signs in the toolbar.
mode using the Menu, right mouse click or special key option. Then press Page up to go into the transmit mode. When ready to receive press Page Down. You may PANIC Kill the transmitter at any time by pressing the HOME key. 8.2.2 ARQ Operations ARQ operations are characterized as two stations in a "linked" QSO. The advantage of ARQ operation is that it is virtually error free. When a station does not receive a data frame correctly it will "REQUEST" a repeat of the data frame. 8.2.2.
You may PANIC Kill the transmitter at any time by pressing the HOME key. 8.3.2 ARQ Operations ARQ operations are characterized as two stations in a "linked" QSO. The advantage of ARQ operation is that it is virtually error free. When a station does not receive a data frame correctly it will "REQUEST" a repeat of the data frame. 8.3.2.1 Linking to Another Station To link to another station, use the following steps. 1. Enter the Callsign of the other station.
translate SITOR FEC (forward error correction) traffic from another station. The unit will also allow SITOR ARQ link requests in this mode of operation. 8.4.2.1 FEC Operations FEC operation are "one-way" forms of communications. This can be convenient for "round table" operations involving more than one other stations. There are only three active controls required for FEC operation.
8.4.3 Free Channel Mode This mode of operation allows the SG7200 to operation in SITOR Free channel mode. Free channel mode allows the 7200 to beacon on the current channel using a morse code identification followed by a series of 8 ARQ bursts. The program will report SITOR Standby with a link status indication of “Free Channel Mode”. To exit this mode of operation press either the Home key or select either ARQ Listen mode or FEC Listen / Standby from the SITOR menu.
9.3 Entering the other Stations QTH To enter the QTH (location) of the other station into the log, press CTRL-Q, enter the City, State, Province etc. and press enter. You may also highlight the QTH with the mouse and select the QTH option in the popup menu. 9.4 Entering the Operating Frequency To enter the current frequency into the log, press CTRL-F, enter the frequency and press enter. 10.
This would be followed by the CQ terminator. 10.3 CQ Delay Specified the amount of time between automated CQ's. This time is specified in seconds. A good compromise is between 45 and 60 seconds. 10.4 CQ Text The CQ Text is user defined to customized operation for various modes of operation. Macros are supported to simplify multi-user station. Example: CQ CQ CQ de ~sc ~sc ~sc would be sent as CQ CQ CQ de WI0ABC WI0ABC WI0ABC 10.
dropped normally. No special characters are required at the end of the text. All necessary changeover or link commands are handled by the program. 10.9 Logging/Text Parameters The logging parameters deal with how the program handles logging operation. There are two modes of operation. These are Automatic and Manual. The automatic mode only works in linked modes of operation. All other modes (RTTY, ASCII etc.) must be manually saved.
including Name, Location, Callsign and SELCAL. This information is loaded into the TNC at program startup. 11.5 Set Time Zone This options allows the user to set the program clock to reflect the correct local and UTC time information. If you have problems with this setting, check for the presence of a SET TZ line in your config.sys or autoexec.bat file. If this exists remove or REM the line form the file and restart the computer To set the program clock correctly use the following steps. 1.
the Save option in the File Menu. And then use the Exit option in the File menu to return to SGCCOM. 6. To save the changes to the Brag file setup. Press the OK button on the dialog box. 7. This completes the creation and assignment of the brag file for the desired CTRL F key. To assign an existing file use the following steps. 1. Select the Brag File Option in the Setup Menu. 2. Select one of the CTRL-F1 to CTRL-F10 buttons on the dialog box that is provided. 3.
This option requires the installation of a sound card. The CW feature uses the internal PC speaker. 12.0 TOR Modes 12.1 AMTOR Listen This menu option place the TNC into AMTOR mode with FEC and ARQ listen enabled. This allows the user to monitor other AMTOR stations sending FEC or linked ARQ communications. 12.2 AMTOR Standby This option select AMTOR mode with all monitoring options disabled. This allows the station to monitor a frequency without filling the receive buffer with monitored traffic. 12.
(CMD:) prompt. This may also be used to switch back to Host Mode. This option may also be invoked by pressing ALT-F8. 14.4 Callbook Search This menu option allows the user to search for a callsign from an external callsign server. Any data that is found will be displayed in a popup dialog box. The data that is displayed is variable based on the exact callsign server that is being used. If you wish to copy this data, simply highlight the data with the mouse and press CTRL-INSERT.
mand is 0. This value is loaded each time the program is started or at any time the value is changed. 15.4 Set TNC Parameters F7 The TNC parameters control the timing and general characteristics of the SG-7200. These parameters are loaded each time the program is started. If you make a change and wish to revert to the last settings, press the Cancel key. 15.4.1 AAB WRU Text On This parameter controls the TNCs response to the CTRL-E character used in AMTOR to request the AAB (auto-answerback) text.
default for this parameter is 5. 15.4.7 AMTOR Tx Delay This parameter sets the link timing for AMTOR operations. Under normal operation a Tx Delay of 30 to 40 is used. If the two stations are very close to one another a larger value may be required. The default for this parameter is 30 ms. 15.4.8 AAB Text The AAB Text parameter is the text that is sent upon receipt of the CTRL-E character in AMTOR operation. This text is set only if the AAB WRU Text Flag is set to On.
17.0 Window Menu 17.1 Cascade This menu option will cascade all program windows within the program window space. This is handy when several windows are open (when using two SG-7200 controllers) or viewing ANSI graphics. The current window on top remains in focus. 17.2 Tile This option allows the user to tile multiple windows. This allows simultaneous viewing of both windows at the same time. The window in focus is placed at the top. 17.
Host Mode Documentation for the SG-7200 Controller HOST MODE SECTION 3 48 © 1999 SGC Inc SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA P.O.Box 3526, 98009 Fax: 425-746-6384 or 746-7173 Tel: 425- 746-6310 or 1-800-259 7331 E-mail: sgc@sgcworld.com Web site: http://www.sgcworld.
1.0 Introduction This document contains information regarding the implementation of host mode control for the SG-7200 controller. This document is written to give programmers and implementers the necessary information to interface with the SG-7200 Controller. The advantage of using a host mode is that it gives the programmer full control of the TNC and the ability to interrogate the controller at any time to find the current status and operating mode. 2.0 Entering Host Mode To enter the Host mode.
0x4F Host Command (2Bytes) Parameters To send character data to the controller, send the character information as part of the parameters. For example to set the MYSELCAL parameter we can use the following format. Note that no spaces should be used between the Host command and the parameters. 0x4F MG SSGC To Set a numeric value we use the same approach. For example if we wish to se the IGAIN command to 5 we would use the host block. 0x4F IG 5 4.
If either the SOH, DLE or ETB characters are included in the data, these characters will be preceded by the DLE character. For example if the data contains the SOH character the TNC will send the sequence as the replacement. This approach allows the , and characters to be included in the data stream. 5.2 Echoed Data By default, the TNC will echo ALL transmitted data back to the controlling program. The 0x2F channel byte will be used for this data.
Command Description Status 0x08 Need VIA 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10 0x15 Notes Not used at this time. Reserved for Packet Operation if imple mented. Not While Connected This command can not be used while connected to another sta tion. For Example, it is not allowed to change timing para meters when connected in an ARQ mode. Need MyCall Parameters Not used at this time. Reserved for Packet Operation if imple mented. Need MYSELCAL Parameters No SELCAL has been set in the TNC.
Operating Byte 1 Byte 2 Mode ASCII Baudot AMTOR Stby AMTOR Listen AMTOR Fec AMTOR ARQ SITOR Stby SITOR Listen SITOR Fec SITOR ARQ Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 0x4F 0x4F 0x4F A B A S A M S1 S1 LS 0x4F A L LS ‘R’ 0x4F F E LS S1 0x4F A C LS S1 0x4F S 2 LS ‘R’ 0x4F S 2 LS ‘R’ 0x4F S 4 LS S1 0x4F S 3 LS S1 ‘R’ Legend of commands S1 Tran
6.0 Command Set for SG-7200 (AMATEUR RADIO MODE) CMD Host Value Command OpCode Range APE A1 NA AAB RAS AU AB NA 45,75 or 110 Baud ACH AG NA AE $#### ADE ALI ALF AD AL AI 5..80 NA Y/N AMT AM NA AO 0…250 ARQ ASC BAU DAT DIS DSP AC AS BA Selcal na na FEC HEL IGA HOS MYS FE na IG HO MG 1..15 Y/N Selcal OGA PAR OG PG 1..15 callsign PBY PDY PT AD na 5…100 Description Sets the master timing for AMTOR mode, this parameter is normally not used.
CMD Host Value Command OpCode Range PEL PFO PID TC MF PIG PLI POG PPO POR QUI IG IG P1 P1 TCL RAS RBA RCV RFE TC AB RB RC RXR SEL RX SIT SPE S2 S5 STA OP TIM TXR USO XMI TX US XM ZF ZS Description Not supported in Host Mode. See PAR com mand. na Clears the current transmit buffer. callsign Sets the TNC PACTOR ID. Maximum of 8 characters. 1…15 Sets input gain – PACTOR Mode. PN na Set controller to PACTOR Listen Mode. 1…15 Set Output level for transmit – PACTOR Only.
7.0 Command Set for SG-7200 (TOR Module CIRR 476/625) CMD Host Value Description Command OpCode Range SAB AU text string sets the answer back string. This may be empty if the answerback needs to be disabled. SAR AC selcal Format ACselcal. Selcal may be 4,5 or 9 characters with optional identifier. See SEL for selcal format options. SBK issues the ARQ “break-in” or “re-sync” when in ARQ listen. SBY S2 na enters standby mode where TNC waits for FEC, SELFEC, or ARQ calls.
CMD Host Value Command OpCode Range SEL na na See the SAR command Description enters SELCAL string for ARQ or SELFEC calls. String can be any 4 digits, 4 letters, 5 dig its, or 9 digits followed by an optional "/" the two channel-free letters, followed by an option al decimal number that defines the gap between successive channel-free bursts. If the SELCAL is 4 letters, these form a CCIR476 call. If the SELCAL is 4 or 5 digits, a CCIR492 translation to CCIR476 is done.
CMD Host Value Command OpCode Range SID MG selcal This command may be sent twice, once for the 4/5 character selcal and the second time for the 9 character selcal 58 © 1999 SGC Inc SIG IG 1...15 SKE na SLI S3 na SOG OG 1...15 SOL RC na Description sets the TNC's identification. The ID may be 4 letters, 4 or 5 digits that would make the unit respond in CCIR476 mode. If the ID is 9 digits it will respond in CCIR625 mode.
CMD Host Command OpCode SOT OV Value Range SOV SPE na na SPO P1 1/2 SRP RX Y/N SRS RS na STS na na TAF na na SRE STP Description sets an end-of-transmission. This causes an ARQ link to finish sending any pending traffic en then change to the link receive by sending the +? group. Note that this command does not merely stuff data into a buffer, but actually checks and verifies that the link actually changed over. If needed, it will repeat sending +?.
CMD Host Command OpCode TAT na Value Range na TCS TIM na na TPF na na TT- T2 na TT+ T1 na Description reads and displays the 625 status word. This value is passed as part of the opmode com mand. displays the status of the low-level 625 output buffer. checks whether the DSP is generating inter rupts. reads and displays the current status of 625 flags and other operational parameters reduces the timing correction parameter by the equivalent of 1 ppm.
