Page 1: ...duced in any copyright owner A R Q 1 0 0 0 A ERROR CORRECTION TERMINAL by HAL Communications Corp Urbana in the United States o America All Contents o this publication may not be form without the writ...
Page 2: ...ARQ1000A FRONT PANEL 25 3 1 1 MODE CONTROL 25 3 1 2 TRANSMISSION CONTROL SWITCHES 26 3 1 3 SYSTEM INDICATION AND CONTROL 26 3 1 4 DATA INDICATORS 28 3 1 5 WRU AND HERE IS SWITCHES 29 3 2 PROGRAMMABLE...
Page 3: ...4 3 3 CHANGING DIRECTION OF TRANSMISSION 57 4 3 4 END OF COMMUNICATIONS 58 4 3 5 IDLE CHANNEL SIGNALS 59 4 4 FORWARD ERROR CORRECTION FEC 59 4 4 1 TEXT TRANSMISSION IN FEC MODE 59 4 4 2 ERROR CORRECTI...
Page 4: ...ear panels However like many sophisticated electronic devices there are some eatures and operator techniques which you may not understand until you have read this manual You should plan to devote some...
Page 5: ...tions Corp o the shortage Please speci y the HAL part number Accessory parts Accessories Packed With ARQ1000A 1 770 05001 1 2 Amp Slow blow Fuse 1 333 17250 AC Power Cord 1 870 01000 ARQ1000A OPERATOR...
Page 6: ...00 or other modem without a tuning indicator is used 2 A teleprinter or video terminal that can operate using the Baudot or ASCII code at data rates between 45 and 300 baud The ARQ1000A can be directl...
Page 7: ...TRANSMITTER RF SYSTEM RECEIVER TRANSMITTER RX TONE RXD CONTROL ARQIOOOA PR NTER _RX TONE TX TON TONE MODEM DEMOOULATOR TONE KEYER TXD RXD ARQ CODE CONVERSION GENERATION IL CONTROL ARQIOOOA TERMINAL EQ...
Page 8: ...uirements o your equipment The majority o this chapter will discuss the possible inter ace selections in detail The ARQ1000A will be ready or operation only a ter all inter ace requirem ents have been...
Page 9: ...able distance from the TTY terminal demodulator or transmitter and receiver it is strongly advised that shielded cabling be used to minimize RF and noise induction onto the data signals If cable dista...
Page 10: ...L 3 Vd VOOOlO V...
Page 11: ...operly PIN 4 REQUEST TO SEND RTS Input rom terminal to ARQlOOOA Can be used as Transmitter PTT control when ARQ unit is in OFF mode by setting jumper J3 to the RTS position See Section 2 2 PIN 5 KEYBO...
Page 12: ...ther open NPN collector O c low transmit or TTL high transmit factory set to O C Jumper J6 PIN 22 TRANSMITTER PTT Push To Talk control rom the ARQ1000A to the modem i modem is so equipped or controlli...
Page 13: ...rameter LC is received in ARQ or SEL FEC modes PIN 7 GROUND PIN 8 AUDIO OUT Output to transmitter audio connections PIN 9 AUDIO OUT GROUND Second audio output terminal for balanced audio connections t...
Page 14: ...0 I 1 1 1 n iu7 l____ l EXPLODED VIE OF DIP S JITCH SETTINGS U30 U26 U25 I U27 I I I MODEM TX RX PNTR KBD DATA JAIT JAIT I I S Jl Settings shown or RS232 Terminal Keyboard and Printer RS232 Keyboard...
Page 15: ...arity These parameters are chosen by switches inside the ARQ1000A The location of these switches is shown in Figure 4 2 2 1 SELECTION OF TTY TERMINAL Either an ASCII or Baudot encoded TTY terminal may...
Page 16: ...ll require this control signal It may be useful however in computer storage applications where disk operations must temporarily interrupt data collection The KBD WAIT signal is most advantageous when...
Page 17: ...mark negative voltage TTL mark logic high PNTR WAIT REQUIRED yes no RS232C WAIT mark or space TTL WAIT high or low KBD WAIT REQUIRED yes no RS232C WAIT mark or space TTL WAIT high or low OPEN COLLECTO...
Page 18: ...mode or standard TTY DATA CODE AND RATE The data code and rate are set with the our switches on SW1 located near the right hand side o the main circuit board see Figure 4 The our switches are set as d...
Page 19: ...hen transmitting a stored bu er rom an electronic terminal where the number o characters exceeds 80 Wh n conditions are poor on the radio requency link tra ic low may be slowed and a risk o lost text...
Page 20: ...position The actory supplied RTS setting is standard or most RS232 terminals It now remains to connect the physical wires between the ARQlOOOA and the TTY terminal equipment Since a radio system is in...
Page 21: ...CH SELECTION Connection o a demodulator to the ARQlOOOA requires setting o switches on the MODEM 7 position DIP switch location U30 in a manner similar to that used or the TTY terminal I 0 selections...
Page 22: ...5 ON FIGURE 6 ARQ1000A CONNECTIONS TO STSOOO HF MODEM In ARQ mode the transmitter PTT line and the tones rom the modem are activated at di erent times Pin 22 on the External Modem connector or pin 4 o...
Page 23: ...C1000A MODEM SWITCHES 1 and 5 ON FIGURE 7 ARC1000A CONNECTIONS TO ST6000 DEMODULATOR When connected to the ARC1000Ar the ST6000 loop circuit must be jumpered Loop 1 2 Conn and no connections should be...
Page 24: ...ARQ MODE TIMING In ARQ mode the Information Sending Station ISS transmits a burst of three characters in a 210 millisecond ms period and the Information Receiving Station IRS then responds with a 70...
Page 25: ...ere when simplex ARQ communications are used same requency or transmitting and receiving Transceivers also seem to have more delay problems than separate units particularly when duplex operation is us...
Page 26: ...OOA INSTALLATION PAGE 23 RX I PTT c TROL_____ I TRANSMIT I RECEIVE XMTR RF OUTPUT RCVR 0 9 v AF 1700 Hz OUTPUT vtx 0 1 vtx TX OFF DELAY 0 1 vrx RX OFF DELAY 01 9 v FIGURE 9 ARQ TX RX TIMING vrx RX ON...
Page 27: ...ut power rating o the transmitter should be checked closely and the recommendations o the manufacturer followed This is particularly important if the transmitter is designed or primary use or SSB voic...
Page 28: ...the operator with the unit 3 1 ARQ1000A FRONT PANEL The ARQ1000A ront panel includes 30 indicator lamps switches and a power switch Although not all indicators and switches may be considered absolute...
Page 29: ...icator will turn on in addition to the MON lamp RESET SWITCH When pressed does a full reset of all ARQ1000A logic circuitry All internal buffers are cleared and the ARQ1000A is returned to the default...
Page 30: ...er modes the IRS lamp will be on when tra ic is being received by this station B Y Indicate data state o the transmitted and received signal Proper system operation is shown by alter nate lashing o th...
Page 31: ...and transmit or receive condition o the terminal changes The TFC IDLE RQ and ERR lamps are particularly use ul to the operator when signal conditions are poor The nature o the ARQ mode o transmission...
Page 32: ...lpha beta OVER signal In SEL FEC mode shows trans mission o idle 3 beta signal In ARQ IRS condition shows reception o the WRU character FIGS D Sin U S Baudot When received an OVER operation is execute...
Page 33: ...e and may be turned on or o by programming the ARQ1000A as explained in section 3 2 8 The BREAK ront panel switch per orms the same unction as pressing the keyboard BREAK key or typing BRK CR This eat...
Page 34: ...hitting the space bar on your keyboard This may be use ul i you wish to get out o the programming mode quickly to make or receive a call Two types o programming commands are used on the ARQ1000A 1 tho...
Page 35: ...2 characters excluding carriage control CR LF which cannot be used as part o the HERE IS text I more than 32 characters are entered only the irst 32 are stored To program the HERE IS message irst ente...
Page 36: ...the other three or our characters should also be numbers I a letter is entered as the irst character the remaining three characters should also be letters When numbers are entered they are immediately...
Page 37: ...EC ON EC OFF TERMINAL ECHO PARAMETER The ARQlOOOA includes an internal echo eature that may be turned on oro The correct setting o this parameter depends upon how the terminal is constructed and conn...
Page 38: ...point of returning itself to ISS if signal was lost while serving as IRS and then initiating the original selective call sequence if necessary The ARQlOOOA can be set to re call the lost station eith...
Page 39: ...turn to B Y test o upon reset Return to B Y test on upon reset may only be stopped by re entering program mode and re programming The normal de ault programming supplied rom the actory is HI TEST LC T...
Page 40: ...gramming the minimum transmitter turn on delay This delay allows the user to coapensate or transmitter turn on and relay transition times as the radio system is switched rom receive to transmit condit...
Page 41: ...rol Delay in ARQ mode is keyboard programmable This delay also a ects ONLY ARQ mode transmissions The Control Delay is shown in the timing diagrams o Figure 11 This delay applies ONLY to a called IRS...
Page 42: ...of the ARQ1000A Otherwise AD does not affect the timing cycle nor does it add to either the Control Delay or Transmit Delay 3 2 14 BUFFER CLEAR BC The ARQ1000A includes a two step transmit text buffe...
Page 43: ...us o all programmable features can determined by first entering program mode with SWITCH or the keyboard BREAK key and then typing ST ARQ1000A will list the whole set o features on the video screen A...
Page 44: ...CR and the ARQ1000A will respond with ARQ1000A COMMANDS ARQ CR SEND ARQ FEC CR SEND FEC OFF CR OFF MODE ZZZZ CR END Ill CR HERE IS HELP CR OR CR HELP PAGE BRK CR ENTER PROGRAM MODE BRK CR ENTER PROGRA...
Page 45: ...EW CALL Now enter the new call SENDING XXXX and CR The response is Where XXXX is the new call as entered in letters or as changed to letters rom numbers by the unit according to the CCIR 491 table in...
Page 46: ...r bu er may be lost It is highly recommended that you use the KBD WAIT connection i your terminal will accept it During the link the operator may turn the link over with the sequence in U S Baudot or...
Page 47: ...one As be ore i the KBD WAIT signal is used automatic protection against input character over low is assured I KBD WAIT is not used the ARQ1000A bu er will over low when more than 1100 characters in...
Page 48: ...be entered by typing OFF CR from the keyboard or by pressing the OFF switch on the front panel The OFF mode is really just a logical pass through between the terminal and data modem This mode allows...
Page 49: ...ppears to the DS3200 as received text The DS3200 may also be interfaced using lower data rates such as 45 bd Baudot However a confusing set of circumstances aay occur if the receive data rate is less...
Page 50: ...ettings are used text may be typed on the DS3200 without regard to the ISS IRS status of the ARQ1000A the KBD WAIT signal connection will prevent ARQ1000A buffer over running To enter program mode you...
Page 51: ...o the late 1930 s Many advances have been made in the design o RTTY demodulators in particular to minimize errors between the transmitter and receiver but since propagation is rarely optimum errors wi...
Page 52: ...ode Sent in serial ashion the 7 data pulses or bits o one character ollow the previous 7 pulses with no start or stop synchonizing pulses The receiving station must there ore have some system o knowin...
Page 53: ...0 1 1 0 1 F 0 1 1 1 0 c 0 1 1 1 1 K 1 0 0 0 0 T 5 5 1 0 0 0 1 z 1 0 0 1 0 L 1 0 0 1 1 w 2 2 1 0 1 0 0 H 1 0 1 0 1 y 6 6 1 0 1 1 0 p 0 0 1 0 1 1 1 Q 1 1 1 1 0 0 0 0 9 9 1 1 0 0 1 B 1 1 0 1 0 G 1 1 0 1...
Page 54: ...or 1 0 1 0 LF SUB J z j z parity 1 0 1 1 VT ESC K k 1 1 0 0 FF FS L 1 I 1 1 0 1 CR GS M m 1 1 1 0 so RS N n 1 1 1 1 SI us I 0 0 RBO acknowledge FS orm separator BEL signal bell GS group separator BS b...
Page 55: ...BBYYB v AZZZZ YYBBBBY w 2 ZZAAZ BBBYYBY X I ZAZZZ YBYBBBY y 6 ZAZAZ BBYBYBY z ZAAAZ BBYYYBB Carriage Return AAAZA YYYBBBB Line Feed AZAAA YYBBYBB Letters Shi t zzzzz YBYBBYB Figures Shi t ZZAZZ YBBYBB...
Page 56: ...send ARQ also called Mode A text in FEC or Forward Error Correction also know as Mode B or Collective Broadcast CB and SEL FEC or Selective Forward Error Correction also known as Selective Mode B or S...
Page 57: ...sages are normally sent using RTTY simplex circuits The IRS will normally only transmit one o two characters used to either acknowledge good reception or to request a repeat I a message must be transm...
Page 58: ...CTIVE CALLING IN ARQ MODE Each station in an ARQ communications system has a our character identi ier When a transmission is initiated by the MASTER station in ARC mode the irst step is to transmit th...
Page 59: ...d through the above calling format the MASTER station starts transmitting straight text without the insertion o the special RQ character The IRS also SLAVE now responds with alternate CS1 and CS2 cont...
Page 60: ...ending Station ISS has inished his tra ic and wants to turn the channel around or a reply To do this he sends the sequence FIGS 1 OVER command I the normal sequence o transmission is such that these t...
Page 61: ...g Station ISS can intiate an OVER operation in two ways 1 entering FIGS 1 rom the keyboard or 2 pressing the ront panel OVER switch The ront panel switch electronically inserts the required FIGS 1 seq...
Page 62: ...wo stations and provides very good error correction However there are many situations in which it is desirable to transmit a message to several ARC equipped stations simultaneously Such broadcast situ...
Page 63: ...ters interleaved and o set by 5 The irst set o text characters is called the OX set and the second set is called the RX set For example the text TESTING 1234 would be sent as ollows MASTER OX RX T 1 P...
Page 64: ...or locks onto the signal o the MASTER station There are two phasing signals associated with FEC transmission called Phasing Signal 1 abbreviated by 1 and Phasing Signal 2 abbreviated by 2 I you study...
Page 65: ...ard Operated Switch output This eature allows the error correction o FEC mode to be used or normal two way simplex transmissions using standard RTTY operating techniques The sending operator thus type...
Page 66: ...electively identify the station called Again the tables o CCIR 491 are used commercially to translate the assigned number into four letters In the ARQ1000A the transmit identifier for SEL FEC mode may...
Page 67: ...transmission o the CSl and CS2 control signals is NOT allowed MONITOR mode is strictly a receive only mode The ARQlOOOA will automatically switch to reception o ARQ FEC or SEL FEC transmissions as ind...
Page 68: ...ws the slave receiving station to set when his CS1 CS2 response start For best long range distance this delay should be as short as possible However transmitter turn o and receiver turn on delays in e...
Page 69: ...CCESS CODE I234 XQKM ISSTXOATA_j A a lc olE lF G IH X I I I I I I I I ISS RX DATA I ICSIJ ICs21 I FROM IRS I I I I I I TX I I I I I PTT RX I MODEM TX I TX RX __J OEt YI CONTROL RX b MASTER ISS TIMING...
Page 70: ...and should be as tolerant of temperature extremes as you are while operating it However inadvertent blockage o the ventilating holes in the cabinet will cause the INTERNAL temperature o the terminal t...
Page 71: ...ost at an AC potential su iciently high enough to damage the ARQlOOOA when the equipment is connected CONNECT THE GROUNDS FIRST THEN CONNECT TO POWER 5 2 TYPICAL OPERATIONAL PROBLEMS Because a large n...
Page 72: ...in this case is to have patience Use a good tuning indicator like the SPT 1 and BELIEVE it A ter correct tuning is made leave the receiver frequency alone and let the ARQ1000A synchronize It may take...
Page 73: ...baud signals 50 Hz minimum bandwidth All current ARQ transmissions use 170 Hz shi t HAL ST6000 demodulators should require no LP ilter modi ications or ARQ operation 10 Do NOT use linear ampli iers T...
Page 74: ...o the things that will concern the dealer or actory 1 Model number 2 Serial number 3 So tware Version Number Vx x where x x is the version number 4 How long have you owned it 5 Where did you purchase...
Page 75: ...t o the privileges and limitations 5 4 USER ADJUSTMENTS Because o the complexity o the circuitry used in the ARQ1000A we do NOT recommend that you personally undertake repairs o the terminal circuit b...
Page 76: ...uctions the CPU must carry out is contained in two type 2732 Erasable Programmable ROMs EPROMs This program software is installed in plug in sockets assuring simple replacement i future software updat...
Page 77: ...ne pin bus consisting o our data lines and ive supervisory lines and with the exception o the RESET button is completely controled by the main board Power Supply The p c board accepts low voltage AC r...
Page 78: ...I I I I llJ 1m B MODOI TX RX PNTR KiD 1 U3l I I IU24 I IIIII MODEM TX RX PNTR KBD m 1 Al035 DATA W AIT W AIT z z ll 0 H S 11 J2 1 c I I I I I I M1700 ARGl OOOA LOGIC BOARD c r D 0 SW l I I I I rri IU...
Page 79: ...I 4 I 5 I 6 I 7 I 8 EXTERNAL MODEM RADJO EB EB e e REV DATE IV P ti1l HAL COMMUNICATIONS CORP BOX 365 URBN o IL 61801 ARQlOOOA REAR PANEL LAYOUT DATE 09 24 1987 I SCALE DRN BY JKC INO C1326 IV P BY I...
Page 80: ...E ___J IV v 27K lzl l14l5l6l7 J3 I NDO lfrll H b I l 1 I 1 Y NIR TX RX CONT DV R JZ 7qsK7 3 M INI r 03 r DII D2 REV DATC n II 74LS367 D3 lH3 DO Dl D2 u Dl L 2 I I D2 I D3 HAL COHHUNICATIONS CORP IDJ l...
Page 81: ...1 Dl DSZ S csz tNilllT DUT3 DSU S 1 AI D3 DSZI I DS27 DSZ RN5 470 r ff jj CiUTD 1 i q DS6 rrc DJ dq 4 US i ARQ I Sll DS3 S TJY DSZ MDI RNI 470 R V DAT I V V I IY u ill HAL CCHHUNICATlONS CORP IDJ BOX...
Page 82: ...All j F A6 J U4 r OS A5 6264 L M 3 13_ 03 A3 1 02 A2 ru 01 1 ro fzzrh I I _ 1 real ntl 1 I I I A 0 J1 A7 116 D7 r 06 A 5 1 DS 20 1 A3 S II_ 1 3 t t IT l li li f 1 sv A 2 All AlO 21 A9 241 1 A7 I D7 A6...
Page 83: ...PiO I P AHU J SV z 14 1 Ill Sill 4l po o 1 I D7 D3 tCHO OFr 5 NMJtN 3 fCNTL 4 Ul D i I OJ I Ul2 HL 244 w 116 W TEiiMi iiS D7 01 4 PNTR VAlT rum Ul4 II IiiE I CollE I P I jfll HAL CCHHUN CATIONS CORP l...
Page 84: ...EM 4 AUDIO IN 6 AUDtD OIJH ct l SCCPt Sf ACE 51 D H DATA 5 MOD DATA 03 4 1 J DZ _ _ 01 1 3 l r aS It 4 3 7 J 2 a a 2 P _ j Rll t _j 114 74 24 5 v 1 rPDO l2V If I lZV III V I llATE I llJifll HAL COMMUN...
Page 85: ...U21 m t T 0 1 J6 1 o o_ m _ r 0 o__J TX RX CONTROL zoaJ I J f CZ PNTR VAIT U2l CZ SELCAL Sll CAL DUT r PRINTER V IT C ICID VA1T II IUD VAIT tV I DATt I I 00HAL CCMHUNICATICN CORP lOX l6 1 UUNIA D 6180...
Page 86: ...PNTR DATA C I KID D TA 6 Ktll88T vG sv lU I cif r J4 0 0 JS 0 0 11 RX OAT DEKDAlA Cll TXOATA KILl18M II I EV I DATE I 11 1 I Jffl HAL CCHHUN CA TIONS CORP lUJ BCIX l6 URBANo 1L 61801 AROIOOOA MAIN BOA...
Page 87: ...SPACE 3 4 T lC RX CDNTR Q J Cl SCQP MARK I 21 1___ _sv l1 v so 35 li u J iit J iit J i li t_ J iJ T 1 T I I I 11 TIIIIIII I 3 tNi 1Ni os tNi o 1 r l D7 d I F 1 12V t lZV IIEV I DATE I N P I 00HAl C011...
Page 88: ...receive only modes Force full reset of ARQlOOOA processing Manual initiation of transmission may also be made by keyboard control Force transmission of alternate 450 ms B and Y ARQ code to the demodul...
Page 89: ...L CAL code INPUT INHIBIT Indicate keyboard TO wait control signal INTERFACE SPECIFICATIONS Data To From Code Rate Levels Control Del odulator 100 Baud ARQ code as defined by RS232C TTL Tone enable whe...
Page 90: ...RQ1000A Rear panel and internal connections or the M1700 are included in all ARQ1000A units SHIFT TONES RECEIVE CIRCUITS POLARITY RX AF IN TX AF OUT TUNING SCOPE POWER CONNECTIONS MECHANICAL 170 Hz 17...
Page 91: ...r hal duplex 100 120 I 200 240 Vac 50160 Hz 3 5 high table or 19 rack mounting ST6000 Demodulator or RTTY Three shi ts standard 170 425 850Hz 2125 or 1275Hz standard mark tones Includes crystal contro...
Page 92: ...tion usless speci ically requested otherwise All export units are supplied with 220 250 VAC connections unless otherwise speci ied I the ARQ1000A is actory wired or 220 250 VAC it will be so indicated...
Page 93: ...UMPER A GRN TO POWER SWITCH a 110 125 VAC Connection Standard JUMPER B REMOVE JUMPER B MOVE b 95 110 VAC Connection JUMPER e REMOVE JUMPER A r J c 220 250 VAC Connection MOVE TOP END FROM 1 TO 2 190 2...
Page 94: ...arity corresponds to both CCIR Recommendation 490 and to FCC Rules and Regulations or marine service Parts 81 and 83 I tones are used with a SSB transmitter USB should be used with a 1615 Hz mark and...
Page 95: ...Q u Q Q u Q Q u u Q 32610 QCXT 3 K E K K E K K E E K 3rd digit 4 M 0 M M 0 M M 0 0 M 1234 XQKM 5 p I p p I p p I I p 6 c R c c R c c R R c 7 v z v v z v v z z v 8 F D F F D F F D D F 9 s A s s A s s...
Page 96: ...tions Links Electronic Industries Association EIA Engineering Department Standards Orders 2001 Eye Street Washington D C 20006 EIA Standard RS232C Interface Between Data Terminal Equipment and Data Co...
Page 97: ...476 3 Direct Printing Telegraph Equipment in the Maritime Mobile Service Recommendations and Reports o The CCIR 1986 XVIth Plenary Assembly Dubrovnik 1986 CCIR Recommendation 476 4 Direct Printing Te...
Page 98: ...PROGRAM MODE OPERATING OPERATE RTTY STANDBY FOR CALL TRANSMIT ARQ MSG BREAK BRK switch or keyboard BREAK key ST HI C32 characters maximum LC C4 letters or 4 5 numbers RC C4 letters or 4 5 numbers GC C...
Page 99: ...codes in ARQ and SEL FEC modes will be printed letter format only SEND HERE IS MSG Press HERE IS front panel switch or type Ill while sending as ISS REQUEST WRU Press WRU front panel switch or enter...
Page 100: ...Box 365 Urbana Illinois 61801 either in writing or by telephone o the existence o a possible de ect 2 At the time o noti ication identi y the model and serial number date o purchase place o purchase...
Page 101: ...limitation may not apply to you HAL Communications Corp disclaims any liability for incidental or consequential damages arising out of the use of or inability to use this product Some states do not a...
