Harris RF Communications Division VSR-4201-001 Differential GPS Ground Station Receiver User Manual users manual

Harris Corporation RF Communications Division Differential GPS Ground Station Receiver users manual

Contents

users manual

Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 1 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USADocument Title: LAAS Host Simulator User ManualDocument ApprovalProject ManagerName: J. LundbergDate and SignatureProcess ApprovalsSQA Manager ATC CM Manager ATC SW Manager ATC Dir. Of Ops.Name: D. Kavanagh Name: B. Roeder Name: R. Gray Name: J. SternowskiDate and Signature Date and Signature Date and Signature Date and Signature
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 2 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAChange HistoryIssue Change ID Description Date Author/Signature1.0 Initial Release 09 June 2000 D. Hoppe
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 3 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USATABLE OF CONTENTS1 INTRODUCTION 41.1 PURPOSE 41.2 SCOPE 41.3 SYSTEM OVERVIEW 41.4 DOCUMENT OVERVIEW 42 APPLICABLE DOCUMENTS 62.1 GOVERNMENT DOCUMENTS 62.2 NON-GOVERNMENT DOCUMENTS 62.3 HARRIS CORPORATION RF COMMUNICATIONS DIVISION DOCUMENTS 73 LAAS HOST SIMULATOR HARDWARE REQUIREMENTS 83.1 PC SYSTEM REQUIREMENTS 83.2 COMPUTERBOARDS CIO-CTR05 COUNTER I/O ISA CARD 83.3 INTERFACE BOX 84 OPERATION OF THE LAAS HOST SIMULATOR 94.1 CONNECTING LAAS RECEIVER AND LAAS TRANSMITTER TO LAAS HOST SIMULATOR PC 94.2 FILE PLACEMENT 104.3 HOW TO CONFIGURE AND EXECUTE THE LAAS HOST SIMULATOR 104.3.1 Installing the Counter I/O ISA card 104.3.2 Determining if the Counter I/O ISA card is properly installed 104.3.3 Determining if the LAAS Host Simulator can communicate with the LAAS radios 114.4 CALIBRATING COUNTER I/O ISA CARD 114.5 EXPLANATION OF COLLECTING BLOCK FAILURE RATE STATISTICS TO A FILE COMMAND 125 ALPHABETICAL LISTING OF ACRONYMS AND ABBREVIATIONS 14List of AppendicesAppendix A Help File Text ................................................................................................................................. 15Appendix B HOSTLAAS.CFG file / description of entries ..................................................................................... 24Appendix C Adapter for LAAS Extended Sensitivity Receiver ............................................................................... 25Appendix D Connecting LHS to LAAS receiver and LAAS transmitter..................................................................... 26
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 4 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA1 Introduction1.1 PurposeThe purpose of this document is to describe how to setup the Local Area Augmentation System (LAAS) Host Simulator(LHS). The additional purpose of this document is to provide a brief description of how to operate the LAAS HostSimulator. The LAAS Host Simulator will also be referred to as LHS.1.2 ScopeThe LAAS Host Simulator User Manual describes the requirements for the Personal Computer (PC) used to control aLAAS receiver and a LAAS transmitter. This document also describes how to configure the ComputerBoards, Inc.CIO-CTR05 Counter I/O ISA card. In addition this document provides a brief description of how to operate the LHS.1.3 System OverviewThe LAAS Host Simulator system consists of the following equipment:• Intel compatible PC with monitor, keyboard, and two serial ports• A ComputerBoards, Inc. CIO-CTR05 Counter I/O ISA card that plugs into the PC bus• Any of the following receiver/transmitter configurations:• One LAAS transmitter• One LAAS receiver• One LAAS receiver and one LAAS transmitter• Interface Box with power supply• Shielded RS-232 cables to connect LHS PC to Interface Box and shielded RS-232 cables to connectInterface Box to a LAAS receiver and a LAAS transmitterThe LHS is used to demonstrate that a LAAS receiver and a LAAS transmitter can be commanded by and reportstatus to a controlling PC. In addition the LHS is used to demonstrate that LAAS messages can be transmitted invarious time slots and received and reported to the controlling PC.1.4 Document OverviewThis document is comprised of 5 major sections including: an introduction to the document, a list of referenceddocuments, a description of the hardware needed for operation of the LAAS Host Simulator, a description of how tooperate and how to configure the LAAS Host Simulator, and a list of acronyms and abbreviations. The Introductionsection provides a general overview of this document and the LAAS Host Simulator. The Applicable Documentssection provides a reference list of documents that provide supporting information to the contents of this document.The Hardware Requirements section lists the system requirements for the PC used in the LAAS Host Simulatorsystem, a brief description of the CIO-CTR05 Counter I/O ISA card, and a brief description of the Interface Box thatconnects the LAAS Host Simulator to the LAAS receiver and the LAAS transmitter. The Operation section describeshow to connect the cables from the PC to the Interface Box and from the Interface Box to the LAAS receiver and theLAAS transmitter, the files necessary for operation of the LAAS Host Simulator and their placement, and a brief
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 5 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAexplanation of configuration options. The Acronyms and Abbreviation section provides an alphabetized list of acronymsand abbreviations used within this document.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 6 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA2 Applicable Documents2.1 Government DocumentsThe following documents form a part of this specification to the extent specified herein.SPECIFICATIONSFederalnoneSTANDARDSMilitarynoneOTHER PUBLICATIONSHandbooknone2.2 Non-Government DocumentsThe following documents form a part of this specification to the extent specified herein. In the event of conflict betweenthe documents referenced herein and the contents of this specification, the contents of this specification shall beconsidered a superseding requirement.SPECIFICATIONSnoneSTANDARDSnoneOTHER PUBLICATIONSnoneTechnical society and technical association specification standards are generally available for reference from libraries.They are also distributed among technical groups and using Federal Agencies.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 7 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA2.3 Harris Corporation RF Communications Division DocumentsThe following documents form a part of this specification to the extent specified herein. In the event of conflict betweenthe documents referenced herein and the contents of this specification, the contents of this specification shall beconsidered a superseding requirement.SPECIFICATIONSnoneSTANDARDSnoneOTHER PUBLICATIONS00-6400A01 LAAS Host Simulator Test Plan
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 8 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA3 LAAS Host Simulator Hardware RequirementsThe LAAS Host Simulator needs the following hardware:• An Intel (or equivalent) based PC• ComputerBoards, Inc. CIO-CTR05 Counter I/O ISA card• An Interface Box with power supply• A LAAS VHF Extended Dynamic Range Receiver or a LAAS VHF receiver• A LAAS VHF Transmitter• A cable to connect the Counter I/O ISA card to the Interface Box• Shielded RS-232 cables to connect the PC COM ports to the Interface Box• Shielded RS-232 cables to connect the Interface Box to the LAAS receiver and the LAAS transmitter• The adapter cabling shown in Appendix C may be used to allow the connection of the LAAS Host Simulatorto the VDR-2205 hardware platform used for the LAAS Enhanced Sensitivity ReceiverThe following sections provide a brief description of the PC System Requirements, a brief description of CIO-CTR05Counter I/O ISA card and a brief description of the purpose of the Interface Box. The other items listed above will notbe described because these items do not require any specific setup or their purpose is self explanatory.3.1 PC System RequirementsWindows 95 running in DOS mode (not a DOS window)(Note: The LAAS Host Simulator may run under Win98, but has not been tested.)16 Megabytes of RAMOne available ISA slotIRQ7 availableTwo serial ports available (COM1, COM2)Pentium @ 133 MHz (or equivalent)3.2 ComputerBoards CIO-CTR05 Counter I/O ISA cardTo meet the control requirements of the LAAS receiver and LAAS transmitter, a Counter I/O ISA card manufacturedby ComputerBoards, Inc. is installed in the PC. This is a half-length card, and occupies one ISA slot. The defaultlocation of the card in the PC I/O space is 0x300. This may be changed by reconfiguring jumpers on the card. Aninterrupt generated by the Counter I/O card is mapped to IRQ7. This IRQ is normally associated with the parallel portof the PC. This Counter I/O ISA card is used to generate the simulated Global Positioning System (GPS) time marksused by the LAAS receiver and the LAAS transmitter.3.3 Interface BoxThe LHS communicates to the LAAS receiver and the LAAS transmitter via two serial ports, COM1 and COM2. Allsignals from the PC (COM ports and Counter I/O card) are routed through an interface box before going to the LAASreceiver and the LAAS transmitter. This interface box serves two purposes, it shifts the RS-232 and TTL signal levelsto RS-422 signal levels, and it routes the Counter I/O ISA card signals as required by the LAAS Host Simulator.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 9 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA4 Operation of the LAAS Host Simulator4.1 Connecting LAAS Receiver and LAAS Transmitter to LAAS Host Simulator PCRefer to Appendix D for a pictorial representation of how the LAAS Host Simulator PC is connected to the LAASreceiver and the LAAS transmitter.Plug cables into the following ports on the LAAS Host Simulator PC:• The Counter I/O ISA card cable into the Counter I/O ISA card connector• A shielded RS-232 cable into COM 1• A shielded RS-232 cable into COM 2Plug the cables from the LAAS Host Simulator PC into the Interface Box as follows:• Plug the unconnected end of the Counter I/O ISA Card cable into the connector labeled TIMER CARD• Plug the unconnected end of the COM 1 cable into the connector labeled COM 1 (TX)• Plug the unconnected end of the COM 2 cable into the connector labeled COM 2 (RX)Plug cables into the following connectors on the Interface Box:• Plug a shielded RS-232 cable into the connector labeled J1 (RX)• Plug a shielded RS-232 cable into the connector labeled J1 (TX)• Plug a shielded RS-232 cable into the connector labeled J2 (RX)• Plug a shielded RS-232 cable into the connector labeled J2 (TX)Plug the cables from the Interface Box into the LAAS Transmitter as follows:• Plug the unconnected end of the J1 (TX) cable into the port labeled J2 DATA I/O• Plug the unconnected end of the J2 (TX) cable into the port labeled J3 GPS TIME MARKPresently there are two receivers that support the LAAS Receiver Command Protocol, the “standard product” LAASreceiver and the LAAS Extended Sensitivity Receiver.If the LHS will be used with the “standard product” LAAS receiver perform the following steps to plug thecables from the Interface Box to the LAAS Receiver:• Plug the unconnected end of the J1 (RX) cable into the port labeled J2 DATA I/O• Plug the unconnected end of the J2 (RX) cable into the port labeled J3 GPS TIME MARKIf the LHS will be used with the LAAS Extended Sensitivity Receiver, perform the following steps to plug thecables from the Interface Box to the LAAS Extended Sensitivity Receiver:• Obtain an adapter connector as described in Appendix C or an equivalent adapter connector andplug the 25 pin D-Connector into the port labeled J3 DATA I/O• Plug the unconnected end of the J1 (RX) cable into the 9 pin D-Connector labeled DATA I/O
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 10 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA• Plug the unconnected end of the J2 (RX) cable into the 9 pin D-Connector labeled GPS TIMEMARKThis completes the connecting of the LAAS Receiver and the LAAS Transmitter to the LAAS Host Simulator.4.2 File PlacementThe LAAS Host Simulator consists of the following three (3) files:• hostlaas.exe - application• hostlaas.cfg - configuration file for LAAS Host Simulator (address of Counter I/O ISA card andcalibration constant for crystal oscillator on the Counter I/O ISA card)• laashelp.txt - online help text fileThe above listed files must be installed in a common directory.4.3 How to configure and execute the LAAS Host SimulatorThe LAAS Host Simulator is a DOS program, therefore the PC used to execute this program must be booted as aDOS machine. The following configuration is required to be done:• change the line labeled address=value to the address of the Counter I/O card, this only has to be done ifthe address of the Counter I/O card is not 0x300, because the LAAS Host Simulator defaults to an addressof 0x300• change the line labeled CountsPerSecond=value to the value determined by executing the proceduredescribed in Section 4.4 of this document, in order to generate accurate time marks4.3.1 Installing the Counter I/O ISA cardPerform the following steps to install the Counter I/O ISA card:1. Set the address of the Counter I/O ISA card to 0x300 unless it is known that this address conflicts with acard already installed in the PC. If so, pick one of the other valid addresses, set the Counter I/O card tothat address and update the address= line in the LHS configuration to the selected address.2. Set the IRQ to be used by the Counter I/O card to 7.3. Set the number of wait states to no wait states.4. Remove the cover from the PC.5. Identify an empty ISA slot that provides enough room on the outside of the cabinet to plug a cable into theD-connector located on the Counter I/O ISA card.6. Install the Counter I/O ISA card into the empty ISA slot.7. Replace the cover on the PC.4.3.2 Determining if the Counter I/O ISA card is properly installedFrom the directory containing the files listed in Section 4.2, type in the following command from the DOS prompt:hostlaas
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 11 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAAfter typing the above line, on the monitor there should be two windows displayed, one window consisting of 25 linesand one window consisting of 1 line. The window with 25 lines should have some text displayed, this is the windowwhere the command acknowledgments from the LAAS radios and status reported by the LAAS radios is displayed.The 1 line window is where commands for the LAAS Host Simulator are typed.To determine if the Counter I/O ISA card is installed correctly perform the following steps:1. After connecting the system together as described in section 4.1, start the LAAS Host Simulator and type inthe following command: rpe 12. The LAAS transmitter should power on.3. If the LAAS transmitter does not power on, then check that all of the cables are plugged in correctly andthat all of the cables are connected securely.4. After checking the cables type in the following command:rpe 15. If the LAAS transmitter does not power on, repeat the steps in the section 4.3.1 using another valid addressfor the Counter I/O ISA card.6. Repeat steps 1 through 5 of this procedure until the LAAS transmitter powers on or all valid addresses havebeen tried. If all valid addresses have been tried and the LAAS transmitter has not powered on then theCounter I/O ISA card may not be working.4.3.3 Determining if the LAAS Host Simulator can communicate with the LAAS radiosTo determine if the LAAS Host Simulator can communicate with the LAAS radios, perform the following steps:1. After connecting the system together, as described in section 4.1, start the LAAS Host Simulator and typein the following commands: rpe 1bit v2. The BIT/Status for both the LAAS receiver and the LAAS transmitter should be displayed.3. If BIT/Status for both the LAAS receiver and the LAAS transmitter is not displayed, then check that all ofthe cables are plugged in correctly and that all of the cables are connected securely. Also check that theLAAS receiver and the LAAS transmitter are powered on.4. After checking the cables type in the following command:bit 15. The BIT/Status for both the LAAS receiver and the LAAS transmitter should be displayed.6. If BIT/Status for both the LAAS receiver and the LAAS transmitter is not displayed then the PC may have abad serial port.4.4 Calibrating Counter I/O ISA cardThe Counter I/O ISA card has a 50 PPM crystal oscillator that is used as the time base for the simulated GPS 1 pulseper second signal. The counters are configured to give one microsecond resolution. This equates to a possible error of50 microseconds over a one second period. The configuration file for the LAAS Host Simulator contains a calibrationparameter that can be set to reduce this error. Note that the long term aging characteristics of the crystal oscillatormay require that this value be adjusted occasionally to maintain the desired accuracy.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 12 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAThe calibration consists of accurately measuring the simulated GPS signal period and determining the error (inmicroseconds) from one second. The CountsPerSecond entry of the configuration file should then be changed by thatnumber. The default value of CountsPerSecond is 16960, which will provide a nominal 1 PPS simulated GPS signalgiven an ideal crystal oscillator.For example, if the simulated GPS period is measured and determined to be 0.999977 seconds (23 microsecondsless than one second), and the CountsPerSecond parameter is currently set to 16960, the new value forCountsPerSecond would be 16983, to increase the period by 23 microseconds. The entry in the configuration filewould be:CountsPerSecond=16983The simulated GPS signal may be measured between pins 4 and 5 of the connector labeled J2(TX) on the InterfaceBox. The LAAS Host Simulator program must be running, the Counter I/O ISA Card cable must be connected, and theInterface Box must be powered to make this measurement.4.5 Explanation of Collecting Block Failure Rate Statistics to a File CommandThe bfr command allows a second command line argument which is used to log the test results to a file.When used, the following statistics are written to the file (in the order displayed):a. Received Counterb. Missed Burstc. Total Missed Burstsd. CRC Status (0 – CRC is valid, 1 – CRC is invalid)e. Total Messages with CRC errorf. FEC Status (0 – FEC was not used, 1 – FEC was used)g. Signal Strength (dBm)To access this option enter the following command:bfr value filename wherevalue is the size of the message (ex. 222)filename is the name of the file to which the statistics are written (ex. test)filename has the following constraints:a. the file is written to the directory where the LAAS Host Simulator is executingb. the file extension of bfr is added to the entered filenamec. the file name is limited to 8 characters, if more than 8 characters are entered, the entered file name istruncated to 8 charactersd. if file name entered is identical to a file already in the directory, then the existing file is overwritten.To close this file (this also stops the BFR test) enter the following command:
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 13 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAbfr 0
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 14 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA5 Alphabetical Listing of Acronyms and AbbreviationsAbbreviation MeaningBFR Block Failure RateGPS Global Positioning SystemI/O Input/OutputIRQ Interrupt ReQuestISA Industry Standard ArchitectureLAAS Local Area Augmentation SystemLHS LAAS Host SimulatorPC Personal ComputerRAM Random Access MemoryTTL Transistor-Transistor LogicVHF Very High Frequency
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 15 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAAppendix A – Help File Textbit [0/1] [r/t] [v/h] [s] [c]Requests the current BIT/Status from the receiver, transmitter, or both. With no argument requests BIT/Status from both the receiver and transmitter and displays the response in hex orverbose format. [0] disable automatic requests (nominally occur at 1 request per second) [1] enable automatic requests (nominally occur at 1 request per second) [r] command or option affects receiver only [t] command or option affects transmitter only [v] verbose (text description of response, 'sticky', i.e. applies to all subsequent requests until explicitly changed) [h] hex (response shown as hex characters, 'sticky') [s] suppress display of the BIT/Status response. Normally the response to the automatic request is displayed. This suppresses that display, this state is cleared by issuing a "bit v" or "bit h" command [c] send the BIT/Status Clear message to the transmitter or receiver (or both)--------------------txt q [s] b 1-249 [s] f file 0Commands the transmitter to start or stop a message transmission sequence. q [s] The message data transmitted is: "The quick brown fox jumped over the lazy dog 0123456789",0xD b 1-249 [s] The message data is the 511 BER data f file The message data is the 511 BER data, fil = filename of file containing transmission slots for Data Message and which slots to send the message from the LAAS Host Simulator to the transmitter 0 Stops a continuous transmission started by txt q, txt b, or txt f [s] Single Message Transmission (defaults to continuous)--------------------bfr 0, 6-222 [filename] d [0/1]Commands the transmitter to start or stop transmitting a message that contains 511 BER message data. Displays message transmission statistics. 0 Terminate Block Failure Rate test 6-222 The message data contains selected number of bytes of 511 BER message data
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 16 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA filename Limited to 8 characters, extension of bfr added to inputted filename Collects the following statistics to the inputted filename (in the order listed): received sequence number, missed bursts, accumulated missed bursts, CRC status (0-no error, 1-CRC error), accumulated CRC errors, FEC status (0-not used, 1-used), and received signal strength (dBm) d 0 Disables BFR statistics display d 1 Enables display of BFR statistics and displays last result--------------------dps [38400/57600/76800] [O/E/N]Allows the user to change the baud rate and the parity of the serial ports in use by the application. With no argument displays the current data port settings. [19200] - set the baud rate for both ports to 19,200 (This option added for debugging only!) [38400] - set the baud rate for both serial ports to 38,400 [57600] - set the baud rate for both serial ports to 57,600 [76800] - set the baud rate for both serial ports to 76,800 [O] - set the parity for both serial ports to Odd [E] - set the parity for both serial ports to Even [N] - set the parity for both serial ports to None (Note: the data bit count is fixed at 8 bits, and the stop bits are fixed at 1. )--------------------err [0] t MessageNumber r MessageNumberThis command is used to cause a command message sent from the LHS to a receiver or transmitter to have 1 fewerbyte or 1 more byte than specified by the ICD. In addition this command can be used to corrupt the CRC of aData Message. The chosen corruption (1 fewer byte, 1 more byte, or corrupted CRC) will occur the next time thecommand or Data Message is sent and only the next time. This command does not create a permanentcorruption of a command or Data Message. [0] Clear all errors t [1-18, 20] Transmitter only. 1 through 9 creates the selected command message with 1 fewer byte than specified in the ICD. 10 through 18 creates the selected command message with 1 more byte than specified in the ICD. 20 creates a Data Message with a corrupted CRC.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 17 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA r [1-12] Receiver only. 1 through 6 creates the selected command message with 1 fewer byte than specified in the ICD. 7 through 12 creates the selected command message with 1 more byte than specified in the ICD.--------------------int frq pwr slt [v]Initializes the transmitter to the entered arguments. frq [1-400] Sets the Assigned Channel field of the Initialization Message to the entered value pwr [0-20] Sets the Assigned Power field of the Initialization Message to the entered value slt [1-ff] Bit field representing the assigned time slots. There are 8 assignable time slots. This bit field represents the 8 slots, with the LSB the earliest time slot (Assigned Time Slot 1). The bit in each position of the argument should be set to one if the corresponding slot is assigned, and to 0 if it is not assigned. A value of 0 is not allowed as input, but is the default value. [v] Display command response in verbose format--------------------inr frq [v]Initializes the receiver to the entered argument. frq [1-400] Sets the Assigned Channel field of the Initialization Message to the entered value [v] Display command response in verbose format--------------------mod [x/s/n] [t/r] [v]Reports/sets the current mode of the receiver, transmitter, or both. With no argument displays the current mode of the transmitter and receiver in hex format [x] Send a Mode Control Command Message to reset [t] transmitter, [r] receiver, or both [s] Send a Mode Control Command Message to set [t] transmitter, [r] receiver, or both to standby [n] Send a Mode Control Command Message to set [t] transmitter, [r] receiver or both to normal [v] Display the response in verbose format. The verbose switch is not sticky and applies only to the current request [r] Display the current mode of the receiver in hex format [t] Display the current mode of the transmitter in hex format--------------------
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 18 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAmon [0-8] [v/h]Controls the display of data from the receiver and provides a second method of controlling the display of BIT/Statusresponses from both the transmitter and receiver. With no agruments displays the current enable/disable status of displaying of data from the receiver and BIT/Status responses. [0-8] 0 = all BIT/Status and data display disabled 1 = Enable the transmitter BIT/Status response display 2 = Enable the receiver BIT/Status response display 3 = Enable both the receiver and transmitter BIT/Status display 4 = Enable display of transmitter and receiver BIT/Status responses and all the fields of the receiver data message with the exception of the data itself 5 = Enable display of all the fields of the receiver data message with the exception of the data itself 6 = Enable display of the data field of the receiver data message 7 = all BIT/Status, Data Message fields & data displays enabled 8 = Enable displaying of valid acknowledgement messages [v] Display response in verbose format [h] Display response in hex format--------------------bcr [t/r] Sends a Bit Clear Request to the receiver, transmitter or both. With no argument sends a BIT/Status Clear Command Message to both the receiver and the transmitter and displays the response in hex. [t] Sends a BIT/Status Clear Command Message to the transmitter and displays the response in hex [r] Sends a BIT/Status Clear Command Message to the receiver and displays the response in hex--------------------urm t/r [0-249] [v] Sends an unrecognized message to the receiver or the transmitter. t [0-249] Sends a message with the Message ID 0xFF to the transmitter having a Message Data of length [0-249] r [0-249] Sends a message with the Message ID 0xFF to the receiver having Message Data of length [0-249] [v] Display command response in verbose format--------------------
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 19 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAmra [0] [s/r] This command allows adjustment of the rate of data messages sent to from the LAAS Host Simulator to the transmitter. With no argument, displays the current skip value and the current message rate value. [0] Sets the message rate to be synchronized to the Transmitter Time Mark [s] Displays a menu alowing the user to select the SKIP value to be set (Range 0 - 255) [r] Displays a menu alowing the user to select the Message Rate to be set ( Range -25 to 25 (mS) )--------------------rpe [0/1]Remote Power Enable, controls the turning on and turning off of the transmitter. No argument displays the current state of the remote power enable line [0] Turns the transmitter off [1] Turns the transmitter on--------------------sdc [0/1] [v]Displays the current power source and allows changing the current power source. No argument displays the response to the current power source request in hex format [0] Sends a command message to switch the transmitter to the AC power source [1] Sends a command message to switch the receiver to the DC power source [v] Display command response in verbose format--------------------cwt 0/1 [v]Enables/disables the transmission of a constant waveform. 0 Stops the transmission of the CW signal 1 Starts the transmission of the CW signal. The current frequency and power settings are to be used
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 20 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USA [v] Display command response in verbose format--------------------tce t/r [v]Sends a TCXO Adjustment Enable message to the receiver or the transmitter. t Send a TCXO Adjustment Enable Command Message to the transmitter r Send a TCXO Adjustment Enable Command Message to the receiver [v] Display command response in verbose format--------------------tcd t/r 0/1 [v]Sends a TCXO Adjustment Direction message to the receiver or the transmitter. t Send a TXCO Adjustment Direction Command Message to the transmitter r Send a TXCO Adjustment Direction Command Message to the receiver 0 Decrease the frequency 1 Increase the frequency [v] Display command response in verbose format--------------------verDisplays the version of the LHS, receiver software (DSP and MICRO), receiver hardware, transmitter software (DSPand MICRO), and transmitter hardware (PA and PS) An example printout: LHS 23 TX DSP 10 TX MICRO 11 TX PA 11 TX PS 20 RX DSP 20 RX MICRO 11--------------------
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 21 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAtme [t/r] 0/1 Time Mark Enable control. Not selecting t or r enables/disables time marks for both the receiver and the transmitter. [t] Enable/Disable transmitter time mark [r] Enable/Disable receiver time mark 0 Disables time mark1 Enables time mark--------------------tmp [0] t/r Time Mark Period control. t Menu for adjusting the time mark period of the transmitter is displayed r Menu for adjusting the time mark period of the receiver is displayed [0] Selects "perfect" time mark period setting for both the transmitter and the receiver t 0 Sets "perfect" time mark period for the transmitter r 0 Sets "perfect" time mark period for the receiver--------------------tmo [0] Receiver Time Mark Offset With no arguments, displays a menu which allows the user to change the time mark offset for the Receiver. [0] Sets the receiver time mark offset back to zero (i.e. perfect synchronization with the transmitter time mark signal)--------------------clsThis command causes the application to clear the screen.--------------------
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 22 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAexitThis command causes the application to terminate.--------------------log [start/stop/reset/filename] [filename.ext] Control the logging of data. With no arguments, terminates data logging. [start] Begin logging all transmitted and received data to a data log file named "LOGFILE.TXT". Data is appended to the existing log file if one exists, else a new file is created. [stop] Terminate data logging [reset] Causes the log file to be deleted and, if logging is currently enabled a new log file is created [filename.ext] logfile.txt Sets the logging file name to "logfile.txt"--------------------scrn 0/1Set the number of rows displayed on the screen. This command clears the screen and repositions the cursor to thetop line of the screen. 0 Set number of lines on screen to 25 1 Set number of lines on screen to 50--------------------tick [0/1] Causes a single character, a '-', to be displayed once per second. With no arguments, displays whether the tick option is enabled or disabled. 0 disables this option1 enables this option--------------------show [text] Causes the text following the command "show" to be displayed on the screen. This text is displayed in Light Grey.--------------------
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 23 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USArun filename.extCauses the application to read "filename.ext" and accept commands from this file as though they were typed in on thecommand line.--------------------pause 0/1This command stops the displaying of data or re-enables the displaying of data on the screen. 1 Stops all data display activity 0 Re-enables data display activity.--------------------flag [v/h/s/d] [0/1] Displays/Controls the states of the "Sticky" flags. With no command parameters this command displays the enable/disable state of all of the "Sticky" flags. v Verbose Flag h Hexidecimal Display Flag s Show Bit/Status Flag d Debug Flag (much debug data displayed) 0 Disabled1 Enabled--------------------txmsg xx xx xx xx xx xx xxCauses the message described by "xx xx xx xx xx xx xx" to be sent to the Transmitter. The message is made up of 1or more hexadecimal bytes shown above as "xx". A message is made up of a series of 2 character ASCII/hexcharacters, each representing a byte of data. For example: txmsg aa 55 01 01 f0 0f--------------------rxmsg xx xx xx xx xx xx xxCauses the message described by "xx xx xx xx xx xx xx" to be sent to the Receiver. The message is made up of 1 ormore hexadecimal bytes shown above as "xx". A message is made up of a series of 2 character ASCII/hexcharacters, each representing a byte of data. For example: rxmsg aa 55 01 01 f0 0f
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 24 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAAppendix B HOSTLAAS.CFG file / description of entriesSee document titled Configuration Data, LAAS Host Simulator, document number 00-6406A01.
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 25 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAAppendix C Adapter for LAAS Extended Sensitivity Receiver2205 receiver20 23 21431671237845GPS(RX2) COM(RX1)9 pin FemaleD connecotr9 pin FemaleD connecotr25 pin MaleD connecotr
Document Number/Ref.-No. Issue00-6383A01 1.0(113443 2) Page 26 of 26Copyright  2000 by Harris Corporation, RF Communications Division All rights reserved. No part of this publication may be reproduced or transmitted inany form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission inwriting by Harris Corporation, RF Communications Division, Rochester, New York, USAAppendix D Connecting LHS to LAAS receiver and LAAS transmitterLAAS Host SimulatorLAAS VHF ReceiverLAAS VHF TransmitterInterface BoxCOM 1 COM 2TIMERCARDGPSTIMEMARKDATAGPSTIMEMARKDATA

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