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Содержание AMT-1

Страница 1: ...ER MANUAL l C S Electronics Ltd PO BOX 2 ARUNDEL BN18 ONX WEST SUSSEX ENGLAND Phone 024 365 S90 ICS AMT 1 Amtor Terminal Unit User Manual CW receive mod for AMT 1 AMT 1 Operating Guide AMT 1 Commodore...

Страница 2: ...f or it and that it can run full duplex at 110 or 75 Bauds at RS232 leve ls Make sure that data can be transmitted and received over the interface simultaneously and that CONTROL and ESCAPE codes can...

Страница 3: ...Codes Transceiver Connector Terminal Connector Front Panel Display LEDs Internal Adjustments Computer Interfacing with the AMT 1 Cable Connections Specification Schematics Microcomputer Applications...

Страница 4: ...iming rather than by using a start bit There are two different types of communication avail able i n AMTOR Forward Error Correction FEC and Automatic Fequest ARQ In the FEC mode the 7 bit characters a...

Страница 5: ...anged by internal links 8 However most terir ir als r smcll computers will interface directly without alter ations Any CTS or RTS control lines from the terminal can initially be left unconnected or s...

Страница 6: ...ON Enter ESCAPE followed by A to enter AMTOR mode The FEC LED will light together with the STBY LED The tuning display will also light In this condition the AMT 1 will do nothing further until an FEC...

Страница 7: ...AMT 1 also has an automatic system to generate a carriage return and linefeed if a space character is entered after the 60th character in a line This ensures that overprinting can not occur at the rec...

Страница 8: ...ode LEDs then another ESC code is not needed Page 5 5 1 ESCAPE A This code enters the AMTOR standby mode from whence FEC signals may be received ARQ can also be received if the selcal code has been en...

Страница 9: ...our the unit will print a questionmark and then revert to AMI OR STBY Control A has no effect in CW mode CONTROL B In RTTY mode this code has the same effect as control A In AMrOR mode it will initiat...

Страница 10: ...ther 75 or 110 Bauds selected by internal DIL switch SW3 10 5 8 3 Pin 5 is the ASCII output from the AMI 1 to the terminal The logic l evels and data format are as per the input on pin l The AMT 1 out...

Страница 11: ...I line and the turn on of the audio tone and the commence ment of transmission of data This allows for t he in evitable delays in change over circuits within the trans ceiver As it l eaves the factory...

Страница 12: ...then RTS will go negative and the computer will then hold any further output until RTS goe s pos itive again indicating that there is now space in the buffer In this way the computer can send very lo...

Страница 13: ...de This is because radio waves take a finite time to travel and the ARQ mode allows a maximum of l70mS for the radio signals to travel from one station to the other and back If there were no other del...

Страница 14: ...tion 476 Transmit and receive 100 Baud ARQ CCIR recommendation 476 AUDIO INTERFACE Input Input Level Bandwidth Tone Frequencies Output Output Level Output Tone Frequencies PTT Line TERMINAL INTERFACE...

Страница 15: ...l I IC l711 Siii 2 111 PAl fS t IC22 6 ICl112 Si H l Ill f A 0 NTIY LSH OIN SIC 211 HTTY IN 1 j I 1 1 1 1 1 1 1 I I I DIN St ll 1 BUSY JN L_J St JIJ HlV St lll ov FS IA 018 acau I ilo 7 IP H2V 12V IC...

Страница 16: ...IC2 12 Slt l I Ill o 11cn11 s1111111 r s c I ICW t 5111 lfll f AO I l J 1 IHOllE I l ll USE 1 0 11 2 5111 11 1 I sv 1 B L 1 2 ___ IP2 l A IC 15 4 5 5 111 Il l 01 0 1 Ol 04 OS 0 6 Il l Rll 21 T ltHOO...

Страница 17: ...F IN DOUBT ASK tsv All 1 0 ov COM 12 C J t IC9 402 t5V IOK J 2 I 0 11ltS l lu H21 1 C J ltOR UOR IK IK It HllR JtOR 2K2 1 11 1 l J 1 1 1 1 l f I 1 1 1 I K IJ f ov ov BC IU Cl6 MOllHlf D ON REAll Pru E...

Страница 18: ...Page 15 APPENDIX 1 MICROCOMPUTER APPLICATIONS PROGRAMS Commodore VIC 20 BBC Model B ABC 80...

Страница 19: ...6 0 IF A 55 THEN 5 GOTO 90 70 lF A 63 THEN K 7 GOTO 90 r 1AI Ir C I C M J RATE ETC 75 REM x llC FUNCTION KEY NOT PRESSED GET CHARACTER FROM KEYBOARD 80 GOTO 190 85 REM X l JICllCllC CHECK IF SHIFT KEY...

Страница 20: ...BMI getkeY DON T PRINT STATUS BYTE 230 JSR OSWRCH 2412l 9etkeY 250 LDA 8 81 250 LDX 00 270 LDY 00 280 JSR OSBYTE 290 TYA 300 CMP FF 3 10 BEQ LOOP NO KEY PRESSED LOOP 320 CMP 1B IS IT ESC 330 BNE CHAR...

Страница 21: ...TO 75 BAUD 60 REM STRAP CTS TO RTS ON BBC RS423 SOCKET 70 REM BEWARE USE BREAK TO EXIT PROGRAM 80 REM 9123 REM le0 FX5 2 110 cFX 1 120 FX8 1 130 F_X229 1 140 FX4 1 150 cFX3 7 150 t X2 2 17123 X INKEY...

Страница 22: ...4 j I9 5S 1 T 1 340 i 0 F 4 T Pi H 81 JG 3 J B 250 GOTO 330 STRING 80 2 fF A i N R 7 A iC JSUB 2 0 13 230 IF j 3 71 EN GGSliB 150 A i 1 JSl B 250 A 8 1 SUB 250 GOTO 1S O 25 j HRst J 250 i 70 JJi s C G...

Страница 23: ...i 4 TO7 300 JJS JB 00 C G IN t5S l Ai OJ 1 4 XOR R 310 GDS1 3 4C O c Z 5 c rn XCR R 3 0 SUB 40 GCSUB 00 C74 4 i INP 5c G i I iP S PND r XC l R l AM 1 XOR 350 JJ 370 l il jl J U GCStIB SJS B GS CS 00...

Страница 24: ...polarity on RTT Y and AMT OR is obtai ned with the transceiver in uppe r sideband On th e USA version the keying polarity str_ ap sh ould be in th e low er sideba nd pos ition SETTING UP With the CW...

Страница 25: ...contro 1 C Rep eat key ing of co ntr o l C or D will co ntinu e th e speed ad just m ent as requ ir ed If the d i spla1 s hows o nl y l e tte rs an d T then the AMT 1 speed se tting i s mu ch t oo fa...

Страница 26: ...GW oN ARR ow A P c 1 E I 1 t J r x E S D N N I t E S l R_ At E O Ol E CD DRH l f I i GP N electronics ltd A ss M i iL t TAI L oe A USED ON AMT L ASSY G A GO oQ DRG NO 6 r J APP D C w R x UNI Ej I I I...

Страница 27: ...ICS AMT 1 AMTOR TERMINAL UNIT Operating Guide l C S Electronics Ltd...

Страница 28: ...up value 45 bauds SPEED Followed by 2 digits to set the CW speed Power up value 20 words per minute LOCAL Followed by Oor 1 to turn on or off the local copy Power up value local copy enabled NEWLINE...

Страница 29: ...ct to the terminal There is no escape from this mode except by switching the power off and on again DELETE Forces received copy to lettershift AMTOR ATTY only Function Codes I AMTOR MODE CONTROL Funct...

Страница 30: ...eive D Receive x Clear buffer To clear any un sent input text CW MODE CONTROL Function Remarks x Clear buffer To clear any un sent input text DIRECT MODE Transparent to all control ESC codes l C S Ele...

Страница 31: ...E SELECT MENU TYPE SELECT MENU TYPE SXX WHERE XX IS BXX WHERE XX IS SPEED BAUD RATE l r Met tJP ofh Hco 12 x x T4 J Tr F r c c c LL of PovP 1 Q l f nf TA tv j J rT TX I l J J Strlt P r 1 1 f O LJ t tK...

Страница 32: ...AM T 1 I C0 M M 0 D0 RE 6 4 APPLI CAT I 0 NS SOFTWARE PAC KAGE II II ii I 0 PERAT0 R M ANUAL ICS ELECTRONICS LTD PO BOX 2 ARUNDEL WEST SUSSEX BN18 ONX ENGLAND Telephone 024 365 590 SER IAL N UMBER NoV...

Страница 33: ...hts reserved This manual applies to program revisions from V 6 onwards Page 1 The program i s available in two versions for either 50Hz or 60Hz mains frequency If you have the wrong version of the pro...

Страница 34: ...W AND UNUSED DISREGARD THE NEXT PARAGRAPH If the AMT 1 has been previously used with the VIC 2 0 or another computer at TTL l evels remove the lid of the AMT 1 and check the following ICJ ins alled ei...

Страница 35: ...pl ay comprises three sections the Re c ei ve Area the Transmit Area and the Status Disp l a y 4 1 Received Text Area This consists of 14 lines and displays a ll text received from the AMT 1 both inco...

Страница 36: ...T 1 It is mainly for diagnostic purposes although certain characters will become familiar iii This i s a U if Unshift on Space is enabled o therwise it is blank See 7 2 V Thi s is a P 1 if the Printer...

Страница 37: ...used The menu is replaced by the prompt BAUD RATE 1 99 and entry is as for T 5 1 6 Cl CW This key causes the AMT 1 to enter CW mode and the CBM64 to exit from MENU mode The menu will be replaced by th...

Страница 38: ...e cleared the AMT 1 is initiated the status line displays AUTO and the program begins repeatedly polling the AMT 1 for status When an ARQ call is received the incoming text is read and examined Anythi...

Страница 39: ...searching must be terminated by using the STOP key alone without RESTORE at which point the menu will re appear The function keys are used within MTOR RTTY and cw modes to control initiation of calls...

Страница 40: ...Keys 1 4 and 7 8 are defined All work in AMTOR RTTY and CW mode and all except and 7 work in MENU mode 7 1 CBM 1 Write Memory 1 4 This key is used to load one of the user programmable memories from th...

Страница 41: ...ted with SPACE or RETURN It is therefore nece ssary to use RETURN after in ARQ and always before STANDBY or RECEIVE so as not to lose the last word PLUS QUERY RETURN soon becomes a natural habit In AM...

Страница 42: ...a CQ the following keys would be used in AMTOR or CW RETURN CTRL S CTRL 5 CTRL 5 CTRL 5 CTRL 6 CTRL 7 good practice RTTY_onlyl AMTOR only call RTTY Note that in AMTOR CQ calls should be made in FEC m...

Страница 43: ...t there is likely to be a problem with the CBM 64 input port Check the voltage on pin 3 of the User Port connector pin 1 is ground It should be nominally SV If it is less than about 4 75V the 64 s pow...

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