.TH PSK31LX 1 "April 25, 2011" .SH NAME psk31lx - a terminal based ncurses program for psk31 .SH SYNOPSIS .B psk31lx [\-h] [\-l] [\-q] [\-t serialdevice] [\-x] [\-v] .SH "DESCRIPTION" .PP .B psk31lx uses the soundcard to receive and transmit PSK31, an extremely narrow band HF-mode. PSK31 is a mode for keyboard QSO’s. .B psk31lx is a simple terminal based program that uses ncurses to display received text and input text to transmit. There is also a phase scope and spectrum analyzer to aid in tuning. .SH OPTIONS .TP \fB\-h\fR printf this message .TP \fB\-l\fR Invert phase shift for LSB mode .TP \fB\-q\fR Enable QPSK mode .TP \fB\-t device\fR Specify the PTT device. Default is /dev/ttyS1. For the first serial device use \-t /dev/ttyS0. .TP \fB\-v\fR print version number .TP \fB\-x\fR TX tracks RX freq .SH KEYBOARD COMMANDS The following keys are used to control psk31lx .TP Ctrl A - toggle afc .TP Ctrl B - toggle BPSK/QPSK .TP Ctrl C - exit/terminate .TP Ctrl K - toggle NET on/off .TP Ctrl L - toggle LSB/USB .TP Ctrl R - RX mode .TP Ctrl T - TX mode .TP Ctrl U - tune mode .TP Ctrl K - toggle NET .TP Ctrl W - CW ID .TP Ctrl X - Clear all windows .TP ESC - Exit .TP Up Arror - increase rx freq + 1 Hz .TP Down Arrow - decrement rx freq - 1 Hz .TP Right Arrow - increase rx freq by 8 Hz .TP Left Arrow - decrease rx freq by 8 Hz .SH "SEE ALSO" More information about .B psk31lx is available on its website, http://wa0eir.bcts.info .SH BUGS Please send bug reports to: wa0eir@wa0eir.bcts.info .SH AUTHOR .B psk31lx was written by Hansi Reiser, DL9RDZ and modified by Ted Williams, WA0EIR.