MIL-STD Data Modem Terminal User Guide - N2CKH

1 MS-DMT Guide Released 10-31-2015 1 MIL-STD data Modem Terminal user Guide Version Current for MS-DMT Build POC for this document is: NOTE: Due to the large number of changes to the MS-DMT Graphical user Interface (GUI) in the current release build, not all screen captures contained herein have been updated to reflect use of the actual tool s GUI 100 percent. WARNING: Do NOT use greater than a filter on transmit or a filter on receive. NOTE: Authorized MS-DMT users with Amateur Radio licenses be aware that Military data Modem serial tone waveforms use 1200 (S4529) or 2400 baud symbol rates which are NOT legal for all Amateur Radio use on HF.

2 FCC rules that took effect on 05 MARCH 2012 for 60m band permit data transmission use as long as the emitted signal is held to BW or less. FCC rules also allow 1200 baud symbol rate use for data transmission at 28 Mhz and above, which would allow S4529 on 10m. Also, current FCC rules seem to permit use of military serial tone waveforms for Digital Voice or Image transmissions were such transmissions are permitted. Future FCC rule making will likely improve this situation. NOTE: The release notes text file in the distribution .ZIP file may contain additional information beyond this document for a build release that is more recent than when this document was last updated.

3 MS-DMT Guide Released 10-31-2015 2 UPDATES The MS-DMT does not automatically update. Updating is performed manually. Updates are usually provided in .zip file format without an and simply require extracting to the installed directory location. All full install and updates releases can be found in the files section of the Yahoo support forum at: or at the open web site at: and its mirror at: MS-DMT Guide Released 10-31-2015 3 SUPPORT All support for this software is provided via the MARS-ALE Yahoo forum at: MS-DMT Guide Released 10-31-2015 4 VERSION AND BUILD NUMBERING MS-DMT does not look like or perform as did the first test build, it has drastically changed, in both appearance and performance.

4 The first formal release of MS-DMT was build at the completion of the initial development and testing of the tool. The build number is displayed in the upper message window and the programs about box should anyone ever locate the later. The correction of any bugs found or the addition of minor features shall result in the next build number being incremented, build would be incremented to build and successive builds in kind would result in another increment to build , etc. until the 10th build if it gets that far at which point we would automatically move to software version build and continue on from there.

5 However, the addition of more significant user features or changing to a newer compiler which usually brings about better performance, would result in a build where the minor version number would increment and bring the build number inline, from build to build and continue from there. The development of a new Modem or a new mode or anything that represented new over-the-air operational capability would bump the major version number and reset the minor version number and bring the build inline, build to build and continue from there. MS-DMT Guide Released 10-31-2015 5 The debut of a 64 bit version port of the tool, should that develop, would also result in a major version number increment of the 32 bit version with the 64 bit version starting at that version and build number.

6 However from that point the 32 and 64 bit baselines may deviate from one another as to version and build numbering depending on the driving factors for each baseline from that point moving forward. It will only be the full release of a new version build that will not contain a banner at the top of the program for the purpose of identifying a test build. Prior to making an actual full release of a new release complete with full documentation and a full install program, any Software Development Team (SDT) test versions will carry the new numbering and contain a banner stating an SDT Candidate build number for the build.

7 Any Beta build made for all hands to perform testing with will carry the new numbering and contain a banner stating a Beta number. The file name for the MS-DMT release build will always remain either for 32 bit versions and when applicable, for 64 bit versions for consistency and to ease the ability to provide full install release and install update distributions if more than a .zip file is required to just drop in the .EXE for use. Any MS-DMT test builds will have a different naming convention. MS-DMT Guide Released 10-31-2015 6 LICENSE FILE REQUIREMENTS: At this time there is no license file required to run the software.

8 This may change with future versions of the tool depending on the features added during the tools life cycle development. MS-DMT Guide Released 10-31-2015 7 TABLE OF CONTENTS 2 SUPPORT .. 3 VERSION AND BUILD NUMBERING .. 4 TABLE OF CONTENTS .. 7 PREFACE .. 9 OVERVIEW .. 11 MIL-STD Modem IMPLEMENTATION .. 13 CURRENT MS110A DMT FEATURES .. 16 FEATURES PLANNED FOR DEVELOPMENT .. 18 REFERENCES .. 20 PC HARDWARE AND OS REQUIREMENTS .. 22 INSTALLING MS-DMT FOR THE FIRST TIME .. 24 INSTALLING AN MS-DMT UPDATE .. 25 REQUIRED FOLDERS .. 26 COMPATIBILITY MODE .. 27 TESTING FOR SYSTEM LATENCY .. 28 STARTING THE PROGRAM .. 36 SETTING MS-DMT PRIORITY.

9 41 SETTING PROCESSOR AFFINITY .. 43 PC SOUND DEVICE SELECTION .. 46 PC SOUND DEVICE CONFIGURATION .. 55 PC SOUND DEVICE Modem TESTNG .. 57 SETTING UP TX AUDIO .. 61 SETTING UP RX AUDIO .. 63 LOOP BACK 67 MS-DMT Guide Released 10-31-2015 8 RADIO RECEIVER SETTINGS .. 69 MS-DMT user INTERFACE .. 72 COMMON PANEL .. 74 RECEIVE PANEL .. 81 TRANSMIT PANEL .. 85 APPENDIX A: data Rate and Interleave Selection .. 89 APPENDIX B: Resizing the MS-DMT GUI .. 95 APPENDIX C: Send File and Drag & Drop .. 99 APPENDIX D: Received data Logging .. 105 APPENDIX E: Sent data Logging .. 109 APPENDIX F: data Port .. 112 APPENDIX G: CAT Radio Support .. 114 APPENDIX H: STANAG 4203.

10 124 APPENDIX I: MARS-ALE Radio Emulation .. 126 APPENDIX J: Software Portability .. 127 APPENDIX K: MS-DMT Remote Control .. 129 APPENDIX L: Management .. 135 MS-DMT Guide Released 10-31-2015 9 PREFACE The MIL-STD data Modem Terminal (MS-DMT) application with its software defined MIL-STD -188-110A PSK Modem core has been developed to provide the MARS member that cannot afford or otherwise acquire a MIL-STD hardware data Modem . This optional means of MIL-STD data Modem communications provides for interoperability by using a General Purpose MS-Windows computer and a high quality ( low noise <-93db, low jitter, artifact free, accurate and stable sample clock) PC Sound Device as the Modem hardware device.