.TH FREESRP-IO "1" "September 2017" "freesrp-io 0.3" "User Commands" .SH NAME freesrp-io \- FreeSRP signal I/O tool .SH DESCRIPTION usage: freesrp\-io [options] \fB\-ofilename\fR .IP input/output format is complex signed 16\-bit .SS "options:" .TP \fB\-h\fR, \fB\-\-help\fR Print usage and exit .HP \fB\-o[filename]\fR, \fB\-\-out\fR=\fI\,[filename]\/\fR Output to specified file ('\-o\-' for stdout) .TP \fB\-i[filename]\fR, \fB\-\-in\fR=\fI\,[filename]\/\fR Read from specified file ('\-i\-' for stdin) .TP \fB\-\-fpga=\fR/path/to/bitstream.bin Load the FPGA with the specified bitstream .TP \fB\-t\fR, \fB\-\-tx\fR Enable the transmitter .TP \fB\-l\fR, \fB\-\-loopback\fR Put transceiver in loopback mode .TP \fB\-f[freq]\fR, \fB\-\-freq\fR=\fI\,[freq]\/\fR Center frequency in hertz (70e6 to 6e9) .TP \fB\-b[bw]\fR, \fB\-\-bandwidth\fR=\fI\,[bw]\/\fR Bandwidth in hertz (1e6 to 61.44e6) .TP \fB\-g[gain]\fR, \fB\-\-gain\fR=\fI\,[gain]\/\fR Gain in decibels (0 to 74) .PP example: freesrp\-io \fB\-f2\fR.42e9 \fB\-b4e6\fR \fB\-g30\fR \fB\-o\-\fR .SH "SEE ALSO" freesrv-ctl(1)