aa090b5f21
Add man pages for those programs that did not have one (exceptions: yasim and yasim-proptest) and update the existing ones to make them compliant with man-pages(7) conventions.
150 lines
6 KiB
Groff
150 lines
6 KiB
Groff
.\" Copyright (C) 2017 Alessandro Menti
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.\"
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.\" This program is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License
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.\" as published by the Free Software Foundation; either version 2
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.\" of the License, or (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public License
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.\" along with this program; if not, write to the Free Software
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.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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.\" Or try here: http://www.fsf.org/copyleft/gpl.html
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.\"
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.TH FGCOM 1 2017-06-04 FlightGear "FlightGear man pages"
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.SH NAME
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fgcom \- VoIP client for the FlightGear radio infrastructure
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.SH SYNOPSIS
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\fBfgcom\fR [\fB\-\-server=\fIserver\fR] [\fB\-\-host=\fIlisteninghost\fR]
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[\fB\-\-port=\fIport\fR] [\fB\-\-callsign=\fIcallsign\fR]
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[\fB\-\-frequency=\fIfrequency\fR] [\fB\-\-atis=\fIfrequency\fR]
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[\fB\-\-airport=\fIcode\fR] [\fB\-\-username=\fIuser\fR]
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[\fB\-\-password=\fIpass\fR] [\fB\-\-silence\-threshold=\fIthreshold\fR]
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[\fB\-\-debug\fR] [\fB\-\-help\fR] [\fB\-\-version\fR]
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.SH DESCRIPTION
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.B fgcom
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is the FlightGear utility used for connecting to multiplayer voice servers.
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.PP
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It is usually not necessary to run
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.B fgcom
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from the command line, as it is already integrated into FlightGear, with the
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exception of a few specific cases (such as recording ATIS messages or
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performing a radio check, see the
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.B EXAMPLE
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section).
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.SH OPTIONS
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.TP
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\fB\-\-server=\fIserver\fR
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Connect to the FGCom server \fIserver\fR. By default, FGCom tries to connect to
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\fBfgcom.flightgear.org\fR.
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.TP
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\fB\-\-host=\fIlisteninghost\fR, \fB\-\-port=\fIport\fR
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Listen on the network interface having the IP address \fIlisteninghost\fR, on
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port \fIport\fR. By default, FGCom listens on the loopback interface
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(\fB127.0.0.1\fR) on port \fB16661\fR.
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The specified port can be used by an instance of FlightGear to communicate with
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FGCom and update the pilot position as they fly.
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.TP
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\fB\-\-callsign=\fIcallsign\fR
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Use the callsign \fIcallsign\fR during the session. By default, FGCom uses
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\fBguest\fR as callsign.
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.TP
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\fB\-\-frequency=\fIfrequency\fR
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Set the active radio frequency to \fIfrequency\fR. The frequency must be
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written in the format \fIxxx.xxx\fR and must be given in MHz.
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.TP
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\fB\-\-atis=\fIfrequency\fR
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Record an ATIS message on \fIfrequency\fR MHz. The frequency must be written in
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the format \fIxxx.xxx\fR and must be given in MHz.
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.TP
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\fB\-\-airport=\fIcode\fR
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Position the pilot/controller to the airport having the ICAO code \fIcode\fR.
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Since some radio frequencies might be reused across the world, it is essential
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to set the pilot/controller position correctly to make the FGCom server able to
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determine the correct voice channel. Always use this flag if you are not
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connecting a FlightGear instance to FGCom.
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.TP
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\fB\-\-username=\fIuser\fR, \fB\-\-password=\fIpass\fR
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Log in to the FGCom server using the username \fIuser\fR and the password
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\fIpass\fR.
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.TP
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\fB\-\-silence-threshold=\fIthreshold\fR
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Set the silence threshold to \fIthreshold\fR dB. The value must be between
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\fB-60\fR and \fB0\fR. The default is \fB-35.0\fR dB.
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The silence threshold is the level below which the sound captured by the
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microphone is considered background noise (and, thus, filtered out by FGCom).
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Setting the silence threshold to \fB-60\fR turns the filter off; setting it
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to \fB0\fR filters everything (mutes the microphone).
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.TP
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\fB\-\-debug\fR
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Enable debug output for troubleshooting purposes.
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.TP
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\fB\-\-help\fR
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Display usage information and exit.
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.TP
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\fB\-\-version\fR
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Display the FGCom version and exit.
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.SH "EXIT STATUS"
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.B fgcom
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exits with
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.B EXIT_SUCCESS
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on success, with
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.B EXIT_FAILURE
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if the syntax of the command-line arguments is wrong or an error occurs.
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.SH NOTES
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FGCom understands several special frequencies used for testing purposes or
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general chatting:
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.IP \(bu 3
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\fB121.000 MHz\fR, \fB121.500 MHz\fR: "guard" frequencies reserved for
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emergency communications;
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.IP \(bu 3
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\fB123.450 MHz\fR, \fB123.500 MHz\fR, \fB122.750 MHz\fR: general chat
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frequencies;
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.IP \(bu 3
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\fB700.000 MHz\fR: radio station frequency. Depending on the FGCom server in
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use, a recorded radio message will be played;
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.IP \(bu 3
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\fB723.340 MHz\fR: French Air Patrol communication frequency;
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.IP \(bu 3
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\fB910.000 MHz\fR: echo test frequency. Your voice will be echoed back after a
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short delay, to allow you to check that your microphone, speakers/headset and
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that your connection to the FGCom server works. The test is limited to a
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maximum of 65 seconds, after which you will be automatically disconnected;
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.IP \(bu 3
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\fB911.000 MHz\fR: "music on hold". The frequency continuously plays background
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music, allowing you to check that your connection to the FGCom server works.
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.SH BUGS
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.IP \(bu 3
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At the time of writing, there is no mechanism in place to update the
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frequencies used by FGCom with the ones used in the real world, should those
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change. The former, thus, might not always correspond to the latter. Always use
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the frequencies listed in FlightGear under \fBAI\fR -> \fBATC Services in
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Range\fR instead of the ones published on aeronautical charts.
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.SH EXAMPLE
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Connect to the default FGCom server, switch to the San Francisco International
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Airport (\fIKSFO\fR) ground frequency (\fI121.800 MHz\fR) and allow FlightGear
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to update the current pilot position by sending it to port \fI16661\fR (the
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default one):
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$ \fBfgcom --frequency=121.800 --airport=KSFO\fR
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Perform a radio check by connecting to the echo test frequency:
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$ \fBfgcom --frequency=910.000\fR
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Record an ATIS message on the San Francisco International Airport (\fIKSFO\fR)
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ATIS frequency (\fI118.850 MHz\fR):
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$ \fBfgcom --atis=118.850 --airport=KSFO\fR
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.SH "SEE ALSO"
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.BR fgfs (1),
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.UR http://\:wiki.flightgear.org/\:FGCom_3.0
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the FlightGear wiki "FGCom 3.0" page
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.UE
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