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2 total messages Started by Terry Dawson Wed, 06 Nov 1996 00:00
Linux HAM HOWTO (part 1/2)
#107
Author: Terry Dawson
Date: Wed, 06 Nov 1996 00:00
1413 lines
50161 bytes
Archive-name: linux/howto/ham/part1
Last-modified: 13 Oct 96

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*** The `Linux HAM HOWTO' is posted automatically by the
*** Linux HOWTO coordinator, Greg Hankins <gregh@sunsite.unc.edu>.  Please
*** direct any comments or questions about this HOWTO to the author,
*** Terry Dawson <terry@perf.no.itg.telecom.com.au>.

- --- BEGIN Linux HAM HOWTO part 1/2 ---

  Linux HAM HOWTO, Amateur Radio.
  Terry Dawson, VK2KTJ, terry@perf.no.itg.telecom.com.au
  v2.2, 10 October 1996

  It is hoped that this document will assist Amateur Radio operators in
  finding and trying the various amateur radio software that has been
  written for or ported to Linux. It is also hoped that as a consequence
  of this information being available that more amateur radio operators
  will choose Linux as the platform of choice for their experimentation,
  and that software developers will choose Linux as the platform for
  their software development, further expanding the role of operating
  systems like Linux in the Amateur Radio field.

  1.  Introduction.

  This list was prompted by comments that had been expressed in the
  various Linux newsgroups about the number of amateur radio operators
  that were involved with Linux. It is now clear that Linux is becoming
  a popular platform for Amateur Radio development work.

  This list was originally called the RADIOLINUX list, but has been
  moved into the Linux Documentation Project HOWTO collection, so it has
  been renamed the HAM-HOWTO. I make no apologies for the name.

  1.1.  Changes from the previous version

  Additions:
          cw2hex - a program to assist in making keyer eproms

  Corrections/Updates:
          Fixed XNet web site details, ooops, thanks Carl.
          Many minor smgl syntax fixes.

  2.  Where to obtain new versions of this document.

  The Linux Documentation Project runs a Web Server and this document
  appears there as The HAM-HOWTO <http://sunsite.unc.edu/mdw/HOWTO/HAM-
  HOWTO.html>.

  Dennis Boylan N4ZMZ dennis@nanovx.atl.ga.us makes it available at the
  following three locations:

  www.com <http://www.com/linux/radio/index.html>, www.hboc.com
  <http://www.hboc.com/linux/index.html> and www.lan.com
  <http://www.lan.com/linux/index.html>.

  John Gotts N8QDW jgotts@engin.umich.edu makes it available at:
  www.engin.umich.edu <http://www-
  personal.engin.umich.edu/~jgotts/linuxhamsoft.html>.

  Dan Todd dantodd@fusilli.ucdavis.edu makes it available at the
  following two locations: wheel.dcn.davis.ca
  <http://wheel.dcn.davis.ca/~dantodd/Linux/HAM-HOWTO.html>, and
  fusilli.ucdavis.edu <http://fusilli.ucdavis.edu/Linux/HAM-HOWTO.html>.

  Alan Hargreaves VK2KVF alan@dap.CSIRO.AU makes it available in
  Australia at: www.dap.csiro.au <http://www.dap.csiro.au/RadioLinux>.

  The Tuebingen Radio Club has it available from their home page at:
  DARC Home Page <http://www.neckar-alb.de/darc/welcome.html>

  Please let me know if you'd like to make it available somewhere too.
  I'd like to see it on some Web Servers that are accessible from radio.

  3.  Satellite Software.

  The following software is for use in experimentation with Satellite
  communication.

  3.1.  MicroSat Ground Station Software

     Author
        John Melton, G0ORX/N6LYT, g0orx@amsat.org and Jonathan Naylor
        G4KLX, g4klx@amsat.org

     Description
        Microsat Ground Station software.

     Status
        BETA. Version 0.9-Xaw released.

     System requirements
        Alan Cox's kernel based AX.25 support ver 1.1.12 or better. X-
        Windows. The programs make use of the Athena Widgets and look
        much better with the 3D libraries.

     Detail
        This software allows you to use of a KISS tnc to directly
        communicate with the Microsat series of satellites. It provides
        an Athena Widgets based X-Windows interface, and allows you a
        comprehensive range of means of interacting with the satellite.
        The software should work with any window manager.

        The software provides the following programs:

        xpb:
           broadcast monitor

        xpg:
           ftl0 file upload program, message upload program

        xtlm:
           telemetry display program

        downloaded:
           downloaded file list viewer

        directory:
           directory list viewer

        message:
           message preparation application

        viewtext:
           uncompressed ASCII text file viewer

        viewlog:
           display the contents of some log files

        xweber:
           special program for downloading webersat images

        phs:
           general purpose PACSAT header stripper
     Where and How to obtain it.
        John's software is available from: ftp.amsat.org
        <ftp://ftp.amsat.org/amsat/software/Linux/microsat-0.9-Xaw.tar.gz>
        or ftp.funet.fi
        <ftp://ftp.funet.fi/pub/ham/satellite/pacsat/microsat-0.9-Xaw.tar.gz>.
        Please check for new versions.

     Licensing/Copyright
        GNU Public License. Freely redistributable, No warranty.

     Contributed by:
        John Melton, G0ORX/N6LYT, Alan Cox, GW4PTS, Jonathon Naylor,
        G4KLX

  3.2.  SatTrack - Satellite tracking program

     Name
        SatTrack

     Author
        Manfred Bester, DL5KR, manfred@ssl.berkeley.edu, (510) 849-9922

     Description
        Satellite realtime tracking and orbit prediction program with
        X11 color graphics.

     Status
        Version 3.1 has been released.

     System requirements
        A vt100 terminal and or X11 server. A Maths Coprocessor is
        useful, but not essential, for good performance.

     Detail
        SatTrack is a satellite tracking program that has been written
        in 'C' language on a UNIX workstation. It provides two different
        live displays, for single or multiple satellites, and two
        different orbit prediction facilities. Cursor controls used in
        both live displays are compatible with the VT100 standard, which
        allows the program to be run basically from any terminal. An
        optional X Window graphics display shows the typical world map
        tracking chart. The orbit prediction can be run either
        interactively or in a batch mode. In the latter case all
        necessary parameters are specified on the command line. The
        program uses the NORAD/NASA two-line Keplerian element (TLE)
        sets directly.

        The current version of SatTrack can track a single satellite
        and/or display multiple satellites for a single ground station.
        It also can control suitable ground station hardware, like
        antennas and radio equipment, and has an autotrack mode in which
        it switches automatically between a number of specified
        satellites. For calibration purposes tracking of the Sun and the
        Moon are also provided. Future releases will provide more
        options. SatTrack requires about 5 MB of disk space in the full
        distribution with eight different world maps (2 styles, with 4
        different sizes each, to fit everyone's screen and taste) and
        less than 1.5 MB of memory at run time. More information can be
        obtained from the SatTrack WWW Home Page
        <http://www.primenet.com/~bester/sattrack.html>

        Compiling the software under Linux is quite straightforward.
        Manfred has designed the Makefile to compile the software
        directly under your home directory, this is easy to change.
        The steps I took were:

          # cd /usr/src
          # export HOME=/usr/src
          # gzip -dc sattrack-3.1.1.tar.gz | tar xvf -
          # cd SatTrack/src
          # vi Makefile
            {Comment SUN4 compile options}
            {Uncomment the linux options}
            {Select the options you want}
          # make

     Where and How to obtain it.
        SatTrack can be found at: ftp.amsat.org
        <ftp://ftp.amsat.org/amsat/software/Linux/sattrack-3.1.1.tar.gz>
        or ftp.jvnc.net
        <ftp://ftp.jvnc.net/priv/kupiec/sattrack/sattrack-3.1.1.tar.gz>
        or the SatTrack WWW Home Page
        <http://ssl.berkeley.edu/isi_www/sattrack-3.1.1.tar.gz>

     Licensing/Copyright
        The software is Copyright of Manfred Bester. It can be used
        without special permission for non-profit, non-commercial use.
        For commercial applications a license from the author is
        required.

     Contributed by:
        Manfred Bester, DL5KR

  3.3.  Predict

     Author
        John A. Magliacane, KD2BD, kd2bd@amsat.org

     Description
        A satellite orbital prediction program that also tracks the
        sun's position to predict visible satellite passes.

     Status
        Complete and working.

     System requirements
        predict is a screen-oriented program that utilizes the
        ncurses-1.8.5 (or later) library.  A color terminal is a plus,
        but not a necessity.

     Detail
        Features of predict include azimuth and elevation headings of
        satellite passes, orbital phase, sub-satellite point locations,
        slant ranges, orbit numbers, and sunlight visibility as a
        function of date and time. The program is simple, fast, and easy
        to use. Predict maintains an orbital database for 21 satellites
        that can be updated by the user through the keyboard or by using
        files containing NASA 2-line orbital element data. Since this
        program operates under a multiuser environment, each user on the
        system owns and maintains his or her own unique orbital data
        base.

        This program has been compiled using the highest level of
        compiler optimization for high speed execution, and uses an
        a.out binary format for greatest compatibility.

        To install the package use the following:

          # cd /
          # tar xvfz predict.tgz

     Where and How to obtain it.
        You can obtain predict from: pilot.njin.net
        <ftp://pilot.njin.net/pub/SpaceNews/linux>

     Licensing/Copyright
        This software is available free of charge and must be used for
        non-commercial purposes only.

     Contributed by
        John A. Magliacane, KD2BD

  3.4.  UO11

     Author
        John A. Magliacane, KD2BD, kd2bd@amsat.org

     Description
        A simple UoSAT-OSCAR-11 satellite telemetry decoding program.

     Status
        Complete and working.

     System requirements
        A 1200 baud UoSAT-OSCAR-11 FSK demodulator (Bell-202 is
        suitable), a VHF-FM receiver that can tune to 145.825 MHz, a
        small yagi antenna, and a communications program such as Minicom
        that can save 1200 baud ASCII telemetry data to a text file.

     Detail
        uo11 decodes ASCII telemetry data that has been captured through
        a terminal program, error checks the received data, and applies
        calibration equations to the received data to produce a report
        that can be easily understood and analyzed.  uo11 comes pre-
        compiled (a.out format) with a man page entry for ease of use.

        To install you should use the following commands:

          # cd /
          # tar xvfz uo11.tgz

     Where and How to obtain it.
        You can obtain uo11 from: pilot.njin.net
        <ftp://pilot.njin.net/pub/SpaceNews/linux>.

     Licensing/Copyright
        This software is available free of charge and must be used for
        non-commercial purposes only.
     Contributed by
        John A. Magliacane, KD2BD

  3.5.  Dove

     Author
        John A. Magliacane, KD2BD, kd2bd@amsat.org

     Description
        A simple DOVE-OSCAR-17 satellite telemetry decoding program.

     Status
        Complete and working.

     System requirements
        A terminal node controller (TNC), a VHF-FM receiver that can
        tune to 145.825 MHz, a small yagi antenna, and a communications
        program such as Minicom that can save 1200 baud ASCII telemetry
        data to a text file.

     Detail
        dove decodes ASCII telemetry data that has been captured through
        a terminal program and applies calibration equations to the
        received data to produce a report that can be easily understood
        and analyzed. dove comes pre-compiled (a.out format) with a man
        page entry for ease of use.

        To install Dove you should use the following commands:

          # cd /
          # tar xvfz dove.tgz

     Where and How to obtain it.
        You can obtain Dove from: pilot.njin.net
        <ftp://pilot.njin.net/pub/SpaceNews/linux>.

     Licensing/Copyright
        This software is available free of charge and must be used for
        non-commercial purposes only.

     Contributed by
        John A. Magliacane, KD2BD

  3.6.  Kepgen

     Author
        John A. Magliacane, KD2BD, kd2bd@amsat.org

     Description
        A simple, yet useful utility that generates Keplerian data files
        in the NASA 2-line format from data entered through the
        keyboard.

     Status
        Complete.

     System requirements
        kepgen is a screen-oriented program that utilizes the
        ncurses-1.8.5 (or later) library.  A color terminal is a plus,
        but not a necessity.

     Detail
        kepgen allows the user to create checksummed Keplerian data
        files in the NASA 2-line format using orbital data entered via
        the keyboard. kepgen was created out of the need for generating
        2-line orbital files from orbital data copied from WA3NAN audio
        transmissions during Space Shuttle missions. The files created
        can be read by virtually any satellite tracking or orbital
        prediction program.  kepgen comes pre-compiled (a.out format)
        with a man page entry for ease of use.

        To install kepgen you should use the following commands:

          # cd /
          # tar xvfz kepgen.tgz

     Where and How to obtain it.
        You can obtain kepgen from: pilot.njin.net
        <ftp://pilot.njin.net/pub/SpaceNews/linux>.

     Licensing/Copyright
        This software is available free of charge and must be used for
        non-commercial purposes only.

     Contributed by
        John A. Magliacane, KD2BD

  4.  Shack Automation Software.

  Software for simplifying tasks in the shack. Examples might include
  software for controlling the newer breed of radios, logging programs,
  QSL database, or antenna rotation.

  4.1.  FT-890 remote control

     Author
        Emarit Ranu, KG0CQ, drranu@holly.ColoState.EDU

     Description
        A simple program to control a Yaesu FT-890 transciever via its
        CAT port from linux.

     Status
        Working

     System requirements
        Yaesu FT-890, Yaesu FIF-232C interface converter or homebuilt
        equivalent (Feb 1993 "QST", page 37). Linux, serial cable.

     Detail
        The program is started with one parameter specifying the com
        port to use.  Once started the program is menu driven. Future
        versions will support an X-Windows interface.

     Where and How to obtain it.
        The software is currently only available from the author by
        email.
     Licensing/Copyright
        You may copy this program millions of times, the only
        restrictions are:

     �  You may not charge ANYONE for the program itself.

     �  You may not distribute modified versions of the program.

     �  If you distribute the program, it MUST be the ORIGINAL tar file
        as received by the author. The README file has to be included.

     Contributed by:
        Emarit Ranu, KG0CQ

  5.  Packet Radio

  Software for use in conjunction with, or for facilitating packet
  radio.

  5.1.  XNet

     Author
        Richard R. Parry, W9IF, rparry@qualcomm.com

     Description
        A traffic analyser for AX.25 networks.

     Status
        Stable, released.

     System Requirements
        TCL-7.5/Tk-4.1, KISS TNC.

     Detail
        The XNet software provides a variety of tools that an AX.25 lan
        manager could use to analyze and manage traffic. The tools
        present a graphical view of all of the traffic received at the
        monitoring node allowing the observer to easily see where the
        traffic flows normally and other information such as:

     �  Packet counts

     �  Node statistics

     �  Network Utilisation figures

        The network is displayed with icons representing hosts and lines
        between them representing the traffic flow. The graphical
        display provides an instantly absorbable view of the traffic on
        the network being monitored.  Richard has more information and
        sample displays at: www.qualcomm.com
        <http://www.qualcomm.com/~rparry/xnet.html>.

     Where and how to obtain it
        You can obtain the software from: www.qualcomm.com
        <http://www.qualcomm.com/~rparry/xnet/xnet-1.1.tar>

     Licensing/Copyright etc.
        XNET is a freeware program. It may be freely distributed.

     Contributed by
        Richard Parry, W9IF

  5.2.  monax25

     Author
        Skip Hansen, WB6YMH and Harold Price, NK6K.

     Maintained by
        Jonathon Naylor, jsn@cs.nott.ac.uk

     Description
        The monax25 provides a number of utilities for collecting
        statistics on AX.25 channel usage.

     Status
        Version 1.1, Stable

     System Requirements
        KISS TNC.

     Detail
        The original ax25mon programs were written for MSDOS. This
        package is a port of that software to Linux.

     Where and how to obtain it
        The `monax25' package may be obtained from: sunsite.unc.edu ham
        applications directory
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/monax25-1.1.tar.gz>.

     Licensing/Copyright etc.
        Freely copyable, not GPL though.

  5.3.  splitscreen

     Author
        Dave Brown, N2RJT, dcb@vectorbd.com

     Description
        Split screen `ttylink' style program with scroll back and log to
        file.

     Status
        Version 1.4.1, stable.

     System Requirements
        Requires the `ncurses' package.

     Detail
        The splitscreen is a unix implementation of the NOS ttylink
        command. It provides a splitscreen display that makes user to
        user chats much easier than the usual telnet interface. The
        scroll back buffer and log to file features are useful when you
        use the splitscreen program to access services like convers

     Where and how to obtain it
        The splitscreen package is available from: sunsite.unc.edu ham
        applications directory
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/splitscreen-1.4.1.tar.gz>

     Licensing/Copyright etc.
        Public Domain

  5.4.  talk-ax25

     Author
        Dave Brown, N2RJT, dcb@vectorbd.com

     Description
        Berkeley `talk' client modified to support Linux AX.25

     Status
        working.

     System Requirements
        Requires the `ncurses' package.

     Detail
        The `talk-ax25' program is a modifed version of the conventional
        Berkeley `talk' program to support Linux AX.25 operation.

     Where and how to obtain it
        The `talk-ax25' program is available from: sunsite.unc.edu ham
        applications directory
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/talk-ax25-960426.tgz>
        or from: ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/linux/talk-
        ax25-960426.tgz>.

     Licensing/Copyright etc.
        Berkeley style. Freely distributable, copyright messages must be
        retained.

  5.5.  7Plus for Linux

     Author
        Axel Bauda, DG1BBQ, DG1BBQ@DB0CL.#HB.DEU.EU

     Description
        Uuencode-like file coder for  BBS Send and Forward of binary
        files.

     System Requirements
        none special

     Detail
        Provides the ability to 7Plus encode binary files to allow them
        to be transmitted within AX.25 BBS messages.

     Where and how to obtain it
        The 7Plus encoder is available from: sunsite.unc.edu ham
        applications directory
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/7pl217sr.tgz>.

     Licensing/Copyright etc.
        Hamware - Free for use by amateur radio use.

  5.6.  TNOS

     Author
        Brian A. Lantz, brian@lantz.com

     Description
        TNOS is a NOS derivative that is being actively supported and
        which is available for both DOS and Linux. It features
        enhancements not found in other NOS versions.

     Status
        The current version is 2.0 and is stable.

     System Requirements
        Kernel networking slip support if you want to link the normal
        Linux network facilities with TNOS. A kiss tnc.

     Detail
        Brian maintains a World Wide Web server which contains up to
        date information on TNOS, you can find it at www.lantz.com
        <http://www.lantz.com/tnos/tnos.html>.

     Where and how to obtain it
        The current version of TNOS is always available from:
        ftp.lantz.com <ftp://ftp.lantz.com/tnos/current/linux/>,
        sunsite.unc.edu <ftp://sunsite.unc.edu/pub/Linux/apps/ham/>, or
        ftp.ucsd.edu <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/tnos/>.

     Licensing/Copyright etc.
        Free for use by amateur radio operators and educational
        oraganisations

  5.7.  N0ARY Packet BBS for UN*X

     Author
        Bob Arasmith, N0ARY, ported to Linux (and others) by Bob Proulx,
        KF0UW, rwp@fc.hp.com

     Description
        A packet bbs implemented under UN*X.

     Status
        ALPHA. Bob is running version ARY-0.9 on both Linux and HP-UX.
        The next version from N0ARY which is called 4.0 is in alpha
        test/development release.  Bob has not been able to bring this
        online yet and is still running 0.9+kf0uw mods. Bob has about
        half it working with Alan Cox's AX.25 kernel which would be the
        desirable combination.

     System Requirements.
        Linux installation, C Compiler, plus HAM radio TNC hardware.

     Detail
        This bbs has an excellent packet user interface.  It has a
        compatible set of commands with the RLI bbs so users will be
        familiar with it immediately.  It then extends the command set
        to be a very nice natural language style interface (e.g "list at
        allus about KPC-3"). Many csh style bang commands are supported.
        Also included is a mail interface to provide a packet to
        internet gateway.

        Currently you need to customize the source code for your
        installation so you need some C programming proficiency.

     Where and How to obtain it.
        For a Linux version or for Linux information send mail to
        rwp@fc.hp.com. For a SunOS version contact bob@arasmith.com.
        This code is not packaged for distribution yet since it is not
        past the alpha stage of development.

     Licensing/Copyright
        Copyright by Bob Arasmith, N0ARY, but freely redistributable.

     Contributed by:
        Bob Proulx, KF0UW

  5.8.  LBBS - Linux BBS message gateway

     Author
        Daryl L Miles, G7LED, dlm@frink.demon.co.uk

     Description
        A BBS package designed to operate with either the native AX.25
        kernel code or with the Wampes package.

     Status
        In development, working.

     System requirements
        Kernel AX.25 support or the Wampes package. sendmail, CNEWS.

     Detail
        Daryl's aim was to build a platform on which amateurs could
        build a Packet BBS to smtp gateway for Linux. I'm not sure what
        the current status is as the last version I could find was dated
        30 Jun 1995.  The latest binary version supports:

     �  MBL, FBB batching, FBB compressed, FBB type 1 compressed
        forwarding with restart facility implemented, deferring, and
        rejection.

     �  various Linux transport mechanisms including TCP kernel, AX.25
        kernel, Wampes NetROM, AX25 or TCP.

     �  Simple dialer, to allow connections through AX.25 or NetROM
        nodes.

     �  White Pages

     �  Transient handling of type A (ACK messages).

     �  SMTP/NNTP<>BBS gatewaying implemented heavily to the extent that
        the user front end will be accessing the NetNews spool to
        retrieve articles.

     �  Message filter mechanism

     �  Field swapping (like SWAPP.SYS in FBB).

     �  Multiuser/connect.

        To install, I did the following:

          # cd /usr/src
          # mkdir LBBS
          # tar xvfz LBBS-0.1.6A.tar.gz
          # cd LBBS
          # ./Install.sh

     This created a /usr/lbbs directory. The README.Setup file suggest
     an order in which to configure the BBS.

     Where and How to obtain it.
        You can obtain LBBS from: G7PIT's ftp site
        <ftp://rsl_pc3.ion.le.ac.uk/pub/LBBS>, or ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/linux/>.

     Licensing/Copyright
        Freely distributable for any non-commercial Amateur Radio use
        only. No warranty. Will be changed to GPL when software is
        stable.

  5.9.  MBL/RLI message to NNTP and email converter.

     Author
        SM0OHI, pme@it.kth.se

     Description
        Software that will convert incoming MBL/RLI messages into either
        NNTP or RFC-822 formatted mail messages.

     Status
        Development, not yet released.

     System requirements
        Unknown.

     Detail
        This software would be ideally suited to those who want to
        establish a mail and news gateway between conventional tcp/ip
        networks and the amateur radio mail network.

     Where and How to obtain it.
        Not yet availale.

     Licensing/Copyright
        Unknown.

     Contributed by:
        SM0OHI

  5.10.  Packet Cluster Node software

     Author
        Franta Bendl, DJ0ZY, and Bernhard ("Ben") Buettner, DL6RAI,
        root@dl6rai.muc.de

     Description
        A PacketCluster like system running on Linux.

     Status
        Released in October 1995.

     System Requirements
        Linux Kernel version 1.2.0 or greater with Alan Cox's AX.25
        version 025 driver, TCP/IP networking, SysV IPC. Also needs Perl
        and KISS TNC hardware on serial device.

     Detail
        PacketCluster nodes have been available for about six years. The
        original software was written by Dick Newell, AK1A, and is
        running under DOS.  clx is a system which clones a PacketCluster
        node. To the outside user commands and features are mostly
        identical, remote PacketCluster nodes, which can be networked,
        don't see the difference between a generic PacketCluster node
        and clx. So it fits well into an established network of
        PacketCluster nodes.

        clx is not a user application, it is network node software. As
        such it is not of much use for the individual amateur. SysOPs of
        PacketCluster nodes with some experience on both PacketCluster
        and Linux will find this application interesting.

        Here are some of the features of CLX:

     �  It is fully compatible with the internal PCxx protocol and from
        a users' point of view. It allows multitasking and different
        priorities for different things.

     �  The software detects looping DX spots without generating endless
        messages. clx filters out such duplicate information. We have
        implemented a concept which allows us to connect the network at
        multiple points, which would formerly have been called a
        "Cluster Loop". clx knows of so-called "active" and "passive"
        links. The outcome is that more DX information is seen by clx.

     �  An interface to call your external programs (even dialog
        programs).

     �  clx uses modern programming concepts like shared memory for
        common data, lex & yacc to implement command language, shared
        libraries to keep binaries small (this is still on our wish
        list), remote procedure calls for inter process communication.
        It is strictly modularized with its own dedicated process for
        every major task.

     �  Comprises the following modules:

        con_ctl
           interfaces AX.25 kernel code and provides a socket for local
           users.

        rcv_ctl
           manages receive spooling.

        snd_ctl
           manages transmit spooling.

        rm_disp
           receive message dispatcher, forwards messages to other
           processes.

        usr_req
           user database requests, forks a process for every database
           task to make it run in the background. The background process
           later sends the results directly to send_ctl.

        mb_ctl
           mailbox control. The mailbox keeps messages in a file system,
           header information is stored in the database.

        usr_ctl
           user administration (logins, logouts, logbook).

        usc_mng
           manages external user commands and command extensions.

        iu_com
           inter user communication (talk, conference).

        send_ctl
           transmit spooling, handling priorities.

        icl_com
           inter node communication (processing and generating PCxx
           messages).

        clx_ctl
           system administration, installing shared memory pages.

        int_com
           manages internal program communications.

     �  The following is the only application program which can be run
        on the console:

        loc_usr
           allows console operator(s) to log in like a normal user.

        Future enhance planned are:

     �  A console monitor to watch ongoing activities

     �  Speed optimization

     �  An internal clx protocol

     �  An additional command shell for experienced users

     Where and How to obtain it:
        ftp.funet.fi <ftp://ftp.funet.fi/pub/ham/unix/Linux/cluster>

        There are five files that make up the package:

     �  00Index

     �  clx_200.tgz

     �  install.clx

     �  README

     Licensing/Copyright
        clx (c) by Franta Bendl (DJ0ZY) and is available for non-
        commercial use, but the authors want to keep track of who is
        using their product, so before you can actually use the software
        you have to ask for an encrypted callsign string to be placed in
        the configuration file. You must send mail to
        <clx_us@dl6rai.muc.de> to organise this.

     Contributed by:
        Bernhard ("Ben") Buettner, DL6RAI

  5.11.  DPTNT Terminal and DPBOX BBS package.

     Author
        Mark Wahl, DL4YBG, DL4YBG@DB0GR.#BLN.DEU.EU,
        wahlm@berlin.snafu.de and Joachim Schurig, DL8HBS,
        DL8HBS@DB0GR.#BLN.DEU.EU, h0187akk@rz.hu-berlin.de
     Description
        A suite of programs that provide BBS and Terminal programs for
        Linux.

     Status
        Stable and working.

     System requirements
        TNC supporting WA8DED hostmode or KISS protocols.

     Detail
        TNT is a full featured hostmode terminal program. Compiling it
        on Linux is as difficult as untarring the source and typing
        `make'. It provides both a `dumb' terminal and X11 version. It
        comes with some comprehensive documentation which describes its
        features in some detail. Its main features are:

        Multiple sessions:
           TNT supports multiple packet radio connections on virtual
           screens that you can switch between. Each session window
           provides split screen (seperate transmit and receive text)
           operation with a status line. Commands can be entered in
           either a command session, or in any terminal session using a
           command key. Each of the virtual screens can be larger than
           the physical screen and can be scrolled around.

        Data capture, file transfer and logging:
           A number of options are available for logging received text
           to files. You can log transmit, receive or both to a log
           file. You can overwrite or append received data to existing
           files. You can use the `autobin' protocol to transmit or
           receive binary files.

        Remote Shell operation:
           You can provide a shell to remote users so that they can
           access other programs on your computer. You can also run a
           program and direct its input/output to a channel so that
           users can use it.

        Redirection of devices to a channel:
           TNT allows you to redirect input/output from a channel to a
           device, a modem for example.

        Umlaut conversion:
           TNT provides umlaut conversion if necessary.

        Remote mode:
           Remote users can issue command themselves if allowed to do
           so.

        Socket mode:
           You can configure tnt so that it opens a socket for users to
           telnet to that allows them operation just as you have from
           the console. This is useful where your linux machine is on an
           ethernet and you want other terminal on the net to have use
           of your radio.

        DPBOX is a full featured BBS supporting the following features:

     �  F6FBB, W0RLI, TheBox style forwarding protocols.

     �  8-bit transparent handling of messages using AutoBIN protocol.

     �  BBS data compressed to save space on disk, forwarding and
        downloading.

     �  "Live message capture" off BBS frequency, saves network traffic.

     �  PACSAT style bulletin broadcast transmitter and receiver.

     �  up to 200 simultaneous users.

     Where and How to obtain it.
        TNT by itself is available by anonymous ftp from: ftp.funet.fi
        <ftp://ftp.funet.fi/pub/ham/unix/packet/tntsrc09.tgz>.  The
        DPTNT package may be found at: ftp.funet.fi
        <ftp://ftp.funet.fi/pub/ham/unix/packet/dptnt/>, or ftp.tapr.org
        <ftp://ftp.tapr.org/pub/tapr/software_lib/Linux/>, or
        ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/incoming/>.

        The Home Pages of the developers are at: DL4YBG
        <http://www.snafu.de/~wahlm/> and DL8HBS <http://hppool0.rz.hu-
        berlin.de/~h0187akk/>

     Licensing/Copyright
        The TNT and DPBOXT programs are covered by the GNU Public
        License. The TFKISS program is covered by ALAS (a german license
        for Amateur Radio use), and the DPBOX program is freely
        distributable for Amateur Radio use.

  5.12.  IPIP encapsulation daemon.

     Name
        Mike Westerhof's IPIP encapsulation daemon.

     Author
        Mike Westerhof KA9WSB (original code), then Bdale Garbee N3EUA
        (port to BSD), then Ron Atkinson N8FOW and John Paul Morrison
        (port to Linux), then Bdale rolled it all back together again.

     Description
        A daemon that will allow you to use your linux machine as an
        IPIP encapsulating gateway.

     Status
        Ron is running this code himself, and the other version have
        been run quite successfully.

     System requirements
        KISS TNC, any version of Linux supporting RAW sockets.

     Detail
        If you've ever used an internet gateway from your amateur packet
        radio you have probably been connected by an encapsulation
        gateway of some descpription. Most run KA9Q's NOS and DOS, but
        others run Unix and this daemon. It allows you to encapsulate IP
        within IP, so that you can 'tunnel' IP connections over the
        Internet. The software allows you to connect a KISS TNC to your
        linux machine and to have all datagrams received on it carried
        across the Internet to a similar gateway. Bdale has installation
        instructions in the package.

     Where and How to obtain it.
        This software is available from the col.hp.com
        <ftp:///col.hp.com/hamradio/packet/etc/ipip/ipip.tar.gz> ftp
        site.

     Licensing/Copyright etc.
        Freely distributable, though Bdale asks that if you use the code
        and like it you might send him a QSL card or a postcard.

     Contributed by:
        Ron Atkinson, N8FOW, and Bdale Garbee, N3EUA

     Note:
        You may want to consider using kernel based tunnel daemon now
        instead.

  5.13.  AXIP encapsulation daemon.

     Name
        Mike Westerhof's AXIP encapsulation daemon.

     Author
        Mike Westerhof KA9WSB, ported to Linux by Ron Atkinson N8FOW.

     Description
        A daemon that will allow you to use your linux machine as an
        AXIP encapsul ating gateway.

     Status
        Not properly tested, but assumed to work ok.

     System requirements
        KISS TNC, any version of Linux supporting RAW sockets.

     Detail
        This daemon is the partner to the IPIP encapsulation daemon. It
        allows you to encapsulate AX.25 frames in IP to carry them
        across the Internet. This is useful for linking AX.25 networks
        in remote areas. Ron has supplied a Makefile for linux, and with
        it the software compiled without errors on my system running a
        recent version kernel. Ron has also written some README files
        which give you the detail necessary to compile the system and
        the original documentation describes how to configure it.

     Where and How to obtain it.
        This software is available in the sunsite.unc.edu ham apps
        directory
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/ax25ip.tar.gz>.

     Licensing/Copyright etc.
        Freely distributable so long as the original copyright notice is
        not removed.

     Contributed by:
        Ron Atkinson, N8FOW

  5.14.  Ping-Pong Convers Server

     Name
        Fred Baumgartens Convers Server for Linux.

     Author
        Fred Baumgarten, DC6IQ, dc6iq@insu1.etec.uni-karlsruhe.de

     Description
        This is a version of the convers server that allows multiple
        users to simultaneously chat with each other in a round-table
        style conversation. It is compatible with the NOS convers
        servers, but provides extra facilities such as saving/restoring
        of Personal Text and Chanel Topics.

     Status
        In use of a number of popular convers servers, appears very
        stable.

     System requirements.
        Linux, GNU make, C compiler.

     Detail.
        Complete installation instructions are included in the INSTALL
        file that is included in the distribution.

     Where and How to obtain it.
        A distribution of this software is available at sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/convers/>. The home of
        the software is at insu1.etec.uni-karlsruhe.de ftp server
        <ftp://insu1.etec.uni-karlsruhe.de/pub/hamradio/convers/convers>

     Licensing/Copyright etc.
        Presumably copyright Fred Baumgarten (not specifically stated),
        but some portions appear to be free for non-commercial use and
        copying provided the copyright notices stay intact.

  5.15.  RSPF Daemon

     Name
        RSPF - Radio Shortest Path First routing daemon for Linux

     Author
        Craig Small vk2xlz csmall@triode.apana.org.au

     Description
        An implementation of the Radio Shortest path First routing
        protocol for linux. The daemon supports version 2.2 of the
        protocol which corrects a lot of bugs and problems that were
        present in version 2.1.

     Status
        Alpha - running, needs testing and bug reports. Current version
        is 0.05

     System requirements.
        Requires Alan Cox's kernel based AX.25 code.

     Detail
        This program will allow Linux to become an RSPF router.  It
        addresses some of the quirks of RSPF v2.1, the version in NOS
        which means that it is incompatible with the NOS version. It
        will also allows remote/local queries via a tcp session for
        debugging and diagnostic purposes.

     Where and How to obtain it.
        Current versions are always available from sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/> or ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/incoming> or from the
        author.

     Licensing/Copyright
        GNU Public License vers 2.0

     Contributed by:
        Craig Small, VK2XLZ

  5.16.  Michael Westfall's TTYLINK Daemon

     Name
        ttylinkd - a ttylink daemon for Linux.

     Author
        Michael Westfall, N6KUY, mwestfal@.csci.csusb.edu

     Description
        A split screen terminal program that listens on the ttylink port
        and accepts incoming connection requests.

     Status
        Seems to work fine.

     System requirements
        none special.

     Detail
        This is a standalone program that does require you to change the
        configuration of your system at all. If you have root access on
        your machine then you run the program in a VT or in an XTerm and
        it will clear the screen and wait for an incoming connection on
        port 87 (ttylink). When a connection is received it will provide
        you with a split screen display with which to communicate with
        the calling person.

     Where and How to obtain it.
        You can obtain ttylinkd from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/ttylinkd.tgz> or
        ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/incoming/ttylinkd.tgz>.

     Licensing/Copyright
        Unknown, presumed freely distributable.

  5.17.  Craig Small's TTYLINK Daemon

     Name
        ttylinkd - a ttylink daemon for Linux.

     Author
        Craig Small, VK2XLZ, csmall@triode.apana.org.au

     Description
        A daemon to accept a ttylink (port 87) tcp/ip connection and
        convert it into a talk request for a user on the host machine.
        This may also be configured for use with the ax25d program so
        that AX.25 users may also make use of it to connect to you.

     Status
        Alpha, but working.

     System requirements.
        Kernel networking support with AX.25 support if desired.

     Detail
        Because the talk protocol is a non-standard, that is it isn't
        actually defined anywhere (except the source), the ttylink
        protocol from NOS has become the defacto standard, at least for
        amateurs, to provide keyboard to keyboard communication over
        tcp/ip. This daemon fills the need for something to answer
        ttylink requests to linux machines.

        To build and install the software, I did:

          # cd /usr/src
          # tar xvfz ttylinkd-0.02.tar.gz
          # cd ttylinkd-0.02
          <edited the Makefile to change the SYSOP_USER>
          # make
          # cp ttylink /usr/sbin
          <edited /etc/service, /etc/inetd.conf as instructed in README>
          # killall -1 inetd

     Where and How to obtain it.
        You can obtain the latest version of ttylinkd from:
        sunsite.unc.edu <ftp://sunsite.unc.edu/pub/Linux/apps/ham/> or
        ftp.ucsd.edu
        <ftp://ftp.ucsd.edu/hamradio/packet/tcpip/incoming>.

     Licensing/Copyright
        GNU Public License vers 2.0

  6.  Morse Code

  Software for use in conjunction with, or for facilitating Morse
  communication.

  6.1.  cw2hex

     Author
        G. Forrest Cook, WB0RIO, cook@stout.atd.ucar.edu

     Description
        cw2hex converts ascii text into Hex files for making keyer
        EPROMS.

     Status
        version 1.1 is tested and ready to go.

     System requirements
        standalone textual program, requires gcc to compile

     Detail
        This program takes a textual input and converts it to morse
        encoded characters in the form of a standard Intel HEX file. The
        Hex file can be used to program an EPROM which can then be
        connected to a simple circuit that generates canned messages.
        Possible uses are CW calling machines and CW beacon transmitter
        keyers. There is an accompanying schematic for a keyer circuit
        that works with this software.

     Where and How to obtain it.
        You can obtain cw2hex from www.atd.ucar.edu
        <http://www.atd.ucar.edu/homes/cook/software.html>

     Licensing/Copyright
        GNU Copyleft

     Contributed by:
        G. Forrest Cook, WB0RIO

  6.2.  SoundCard CW

     Author
        Steve Merrifield, VK3ESM, sjm@ee.latrobe.edu.au

     Description
        Morse Code practice for Linux, using a soundcard

     Status
        Completed

     System requirements
        Linux supported soundcard with FM support.

     Detail
        This program generates morse code characters using the
        soundcard.  It does not rely on the Linux virtual console sound
        features and may therefore be used either with X11 or from a
        virtual console. Its features include:

     �  adjustable frequency

     �  adjustable volume

     �  adjustable speed

     �  adjustable delay

     �  adjustable group count

     �  generation of random groups

     �  able to decode and play text files

     Where and How to obtain it.
        The software may be obtained from its home site at:
        livewire.ee.latrobe.edu.au
        <http://livewire.ee.latrobe.edu.au/~sjm/morse>.

     Copyright/Licensing
        Berkeley style copyright. The software may be freely used so
        long as credit is given to the original author.

     Contributed by:
        Steve Merrifield, VK3ESM

  6.3.  GW4PTS Morse trainer.

     Author
        Alan Cox, GW4PTS, alan@lxorguk.ukuu.org.uk

     Description
        A Morse Code trainer that uses the PC internal speaker

     Status
        stable, works quite well, unfinished.
     System requirements
        Linux, any version

     Detail
        Alan wrote this small program in only an hour. It is quite neat,
        and allows you to play morse at a range of speeds and
        frequencies through the PC internal speaker. You can specify the
        text to be played either from the command line, from a file, or
        the program is capable of generating random character groups. As
        it stands you must invoke the program from a Linux Virtual
        Console, as it relies on certain kernel calls to produce the
        sound, and these don't work as easily from an XTerm. As it
        sounds each character it lists the character in verbal form (Di,
        Dit, Dah etc.) to the screen. Alan is hoping that someone will
        take the code and enhance it with the features he has listed in
        the comments at the head of the source file.

     Where and How to obtain it.
        I've had a large number of responses from people seeking this
        code, so I've obtained Alan's permission to make it available.
        You can obtain it from sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/ham/GW4PTS.morse.tar.gz>.

     Copyright/Licensing
        GNU Public License 2, freely redistributable, no warranty.

  6.4.  morse (aka superiormorse)

     Author
        Joe Dellinger, joe@sep.stanford.edu, jdellinger@trc.amoco.com,
        joe@soest.hawaii.edu

     Description
        A morse-code practice program for UNIX workstations.

     Status
        Quite stable

     System Requirements
        Currently supports X11, Sun4, HP, Indigo, and Linux

     Detail
        Lots of features and options.  Includes a utility for generating
        random content QSOs, similar to those used in the FCC exams.

     Where and How to obtain it:
        morse can be obtained from: sepftp.standford.edu
        <ftp://sepftp.stanford.edu/pub/UNIX_utils/morse/morse.tar.gz>.

Article Unavailable
Linux HAM HOWTO (part 2/2)
#106
Author: Terry Dawson
Date: Wed, 06 Nov 1996 00:00
366 lines
13061 bytes
Archive-name: linux/howto/ham/part2
Last-modified: 13 Oct 96

-----BEGIN PGP SIGNED MESSAGE-----

*** The `Linux HAM HOWTO' is posted automatically by the
*** Linux HOWTO coordinator, Greg Hankins <gregh@sunsite.unc.edu>.  Please
*** direct any comments or questions about this HOWTO to the author,
*** Terry Dawson <terry@perf.no.itg.telecom.com.au>.

- --- BEGIN Linux HAM HOWTO part 2/2 ---

     Author
        Thomas Nau, Thomas.Nau@rz.uni-ulm.de

     Description
        An X11 based interactive printed circuit board design tool.

     Status
        Vers 1.4.1, stable.

     System requirements
        X11 Windowing system and a recent flex program.

     Detail
        The pcb package comes with good instructions on how to compile
        and install the software. I compiled it without error under
        X11R6. It comes with package layouts for a range of popular
        components and the example layout nicely demonstrates the
        capabilities of the package.

     Where and How to obtain it.
        You can obtain the pcb package from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/circuits/pcb-1.4.1.tar.gz>
        or from: ftp.uni-ulm.de <ftp://ftp.uni-ulm.de/pub/pcb/current>

     Licensing/Copyright
        GNU Public License

  11.4.  Chipmunk circuit design and simulation tool

     Author
        Dave Gillespie daveg@synaptics.com and John Lazzaro
        lazzaro@cs.berkeley.edu

     Description
        Schematic Entry and Digital or Analog Simulation.

     Status
        vers 5.10, stable.

     System requirements
        X11 windowing system and older (XFree86-2.x) libs, 8 bpp (256
        color) only

     Detail
        I haven't tried this one out yet.

     Where and How to obtain it.
        You can obtain the Chipmunk package from its home site at
        www.pcmp.caltech.edu <http://www.pcmp.caltech.edu/chipmunk/>.

     Licensing/Copyright
        Modified GNU Public License, Caltech specifically disclaimed
        from liability.

  11.5.  irsim

     Author
        Dmitry Teytelman, dim@leland.stanford.edu

     Description
        An event-driven logic-level simulator for MOS circuits

     Status
        Version 9.2, production.

     System Requirements
        X-Windows.

     Detail
        irsim is an X11 based simulator for MOS circuits. It has two
        simulation modes, either switch where each transistor is
        modelled as a voltage controlled switch, or linear where each
        transistor is modelled as a resistor in series with a voltage
        controlled switch, and each node has a capacitance.

     Where and How to obtain it.
        You can obtain irsim from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/circuits/irsim-9.2.linux.1.tar.gz>.

     Licensing/Copyright
        Freely Redistributable

  11.6.  Spice vers. 3f4

     Author
        University of California, Berkeley, port by
        Jeff@RyeHam.EE.Ryerson.Ca

     Description
        Spice is an analog circuit emulator.

     Status
        Stable release.

     System requirements
        Unknown.

     Detail
        Spice allows you to design and test circuits in a computer
        modelled environment to see how they will behave without having
        to touch a soldering iron, or solder. A readme file comes with
        the package. To install I did the following:

          # cd /usr/src
          # gzip -dc spice3f4.tar.gz | tar xvf -
          # cd spice3f4
          # ./utils/build linux
          # ./utils/build linux install

     Where and How to obtain it.
        You can obtain version 3f4 of Spice from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/circuits/spice3f4.tar.gz>

     Licensing/Copyright
        Copyright held by University California, Berkeley. Freely
        redistributable provided you are not unfriendly to the U.S.

  11.7.  svgafft - Spectrum analyser

     Author
        Andrew Veliath, veliaa@rpi.edu

     Description
        svgafft is a spectrum analyser for Linux.

     Status
        Alpha, but usable.

     System requirements
        F77, Linux supported sound card, svgalib, a 486DX33 or better.

     Detail
        svgafft uses the /dev/dsp device and currently supports 16-bit
        and 8-bit sample resolution on supported Linux soundcards. It's
        display is something akin to a high-end spectrum analyzer with
        falling peaks. Andrew is working on an X-Motif version to be
        released soon.

     Where and How to obtain it:
        You can find the software at tsx-11.mit.edu
        <ftp://tsx-11.mit.edu/pub/linux/ALPHA/svgafft/svgafft-0.2h.tar.gz>
        and sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/sound/freqs/svgafft-0.2h.tar.gz>.

     Licensing/Copyright
        GNU Public License.

     Contributed by:
        Andrew Veliath

  11.8.  Audio Spectrum Analyser

     Author
        Philip VanBaren, phillipv@eecs.umich.edu

     Description
        An audio spectrum analyser for Linux SVGALIB or X-Windows.

     Status
        Alpha but usable

     System requirements
        Linux supported sound card, svgalib or X-Windows.

     Detail
        freq5a1 uses the /dev/dsp device, samples the incoming audio,
        performs a fast fourier transform on the data and displays the
        output in either 640x480 VGA or an X-Window.

     Where and How to obtain it:
        You can obtain freq5a1.tar.gz from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/apps/sound/freq5a1.tar.gz> or
        by mail from the author.

     Licensing/Copyright
        GNU Public License vers 2.0.

  11.9.  ObjectProDSP

     Author
        Paul Budnik, Mountain Math Software, support@mtnmath.com

     Description
        ObjectProDSP is an object oriented tool for design, development
        and implementation of Digital Signal Processing. It allows you
        to design your DSP network, runs simulations with oscilloscope
        style plots and listings at any point in the network.

     Status
        alpha.

     System requirements
        XFree86 3.1.1 or better, g++ from gcc 2.6.3 or better, 32Mb of
        total memory (real+swap) recommended, 6Mb of disk space for
        minimum configuration, 40Mb disk for full installation.

     Detail
        There are a number of files that comprise the package. There is
        a binary only package for Linux which I recommend you start
        with. There is comprehensive documentation included from which
        you can obtain installation and operation instructions.

     Where and How to obtain it.
        You can obtain ObjectProDSP from: sunsite.unc.edu
        <ftp://sunsite.unc.edu/pub/Linux/devel/opd>, tsx-11.mit.edu
        <ftp://tsx-11.mit.edu/pub/linux/packages/dsp>, or ftp.funet.fi
        <ftp://ftp.funet.fi/pub/OS/Linux/util/electronics/opd>.  There
        are a number of files that comprise the package, some of the
        quite large so be prepared.
     Licensing/Copyright
        GNU Public License vers 2.0., Commercial licensing available.

  12.  Training/Educational Software.

  Software to assist in education or training for amateur radio. Morse
  Code tutorials, technical examination database, Computer Based
  Training software, and the like are listed here.

  13.  Miscellaneous Software.

  Software that didn't neatly fit into any other category.

  13.1.  Linux for HAMS CD-ROM

     Author
        Bruce Perens, bruce@pixar.com

     Description
        A complete linux distribution on CDROM specifically designed for
        Amateur Radio operators.

     Status
        Not yet available.

     System requirements.
        Linux compatible hardware, some software will obviously require
        specialised hardware to operate. No additional software should
        be required.

     Detail
        A complete Linux distribution specifically catering for Amateur
        Radio operators. It will include a fully featured Linux
        installationplus a range of amateur radio specific software such
        as those listed in this document. Bruce has detail and updated
        status report available at the LinuxForHams WWW page
        <http://www.rahul.net/perens/LinuxForHams>.

     Where and how to obtain it:
        It isn't yet available, details will be made available when it
        is released.

     Licensing/Copyright
        GNU Public License.

     Contributed by:
        Bruce Perens

  13.2.  SunClock

     Author
        John Mackin, john@cs.su.oz.AU

     Description
        A clock that will show you instantly what parts of the globe are
        exposed by sunlight and what parts aren't.

     Status
        Released.

     System requirements.
        X-Windows.

     Detail
        sunclock is another of those desktop gadgets that most people
        think look nice but really don't have a lot of use for. I use
        sunclock to obtain an at-a-glance indication of the time
        anywhere in the world.  In its iconic form it sits in a small
        Mercator projection. When maximised it produces the same image
        but obviously larger with slightly more detail.  It also
        displays the date, local time and UTC. sunclock actually
        calculates mathematically what parts of globe are sunlit and
        which aren't, it seems quite accurate, so long as you assume the
        earth has no atmosphere.

     Where and How to obtain it.
        I haven't seen any precompiled sunclock binaries for Linux
        about, so check your nearest archie server. sunclock compiled
        straight out of the box for me.

     Licensing/Copyright
        Public Domain and may be freely copied as long as the notices at
        the top of sunclock.c remain intact.

  13.3.  Xearth

     Author
        Kirk Johnson, tuna@cag.lcs.mit.edu

     Description
        A rotating earth for X-windows root window. It has real life
        shading, and options for geostatic view, and non geostatic view.
        A prettier and more modern version of sunclock but requires a
        bit more processing power.

     Status
        Version 1.0.

     System requirements.
        X-Windows.

     Detail
        xearth is a sophisticated program which draws a colour picture
        of the earth onto your X Windows display. It offers either an
        orthographic view as you would see from space or the map like
        mercator projection. You have a number of options in determining
        the behaviour of the view. The details are available from the
        xearth Home Page <http://cag-www.lcs.mit.edu/~tuna/xearth/> and
        in the documentation which is supplied with the package.

     Where and How to obtain it.
        The source can be obtained from its home site at cag.lcs.mit.edu
        <ftp://cag.lcs.mit.edu/pub/tuna/> or just about any X11/contrib
        directory.

     Licensing/Copyright
        Copyright (C) 1989, 1990, 1993 by Kirk Lauritz Johnson. The
        copyright notice included states that xearth is freely
        redistributable so long as the copyright notice is left intact,
        and be included in documentation.

     Contributed by:
        Kirk Johnson

  14.  How to contribute or update an entry.

  I'd like for this list to be as complete and up-to-date as possible.
  So I'm keen to hear about any developments or products that I don't
  already know about, or that the entry is obselete or outdated for.

  What I'd like as a minimum set of requirement would be something like
  the following:

     Name
        The name of the software in question.

     Author
        Who wrote, or ported the software. An email address, or some
        other means of contacting them is also essential.

     Description
        A single line description of what the software does.

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