osmocom_siggen_nogui(1)

Usage

osmocom_siggen_nogui: [options]

Overview

Signal generator application

Options

-h, --help: show this help message and exit

-a ARGS, --args=ARGS: Device args, [default=]

-A ANTENNA, --antenna=ANTENNA: Select Rx Antenna where appropriate

-s SAMP_RATE, --samp-rate=SAMP_RATE: Set sample rate (bandwidth), minimum by default

-g GAIN, --gain=GAIN: Set gain in dB (default is midpoint)

-f FREQ, --tx-freq=FREQ: Set carrier frequency to FREQ [default=mid-point]

-c FREQ_CORR, --freq-corr=FREQ_CORR: Set carrier frequency correction [default=0]

-x WAVEFORM_FREQ, --waveform-freq=WAVEFORM_FREQ: Set baseband waveform frequency to FREQ [default=0]

-y WAVEFORM2_FREQ, --waveform2-freq=WAVEFORM2_FREQ: Set 2nd waveform frequency to FREQ [default=none]

--sine: Generate a carrier modulated by a complex sine wave

--const: Generate a constant carrier

--offset=OFFSET: Set waveform phase offset to OFFSET [default=0]

--gaussian: Generate Gaussian random output

--uniform: Generate Uniform random output

--2tone: Generate Two Tone signal for IMD testing

--sweep: Generate a swept sine wave

--gsm: Generate GMSK modulated GSM Burst Sequence

--amplitude=AMPL: Set output amplitude to AMPL (0.1-1.0) [default=0.3]

-v, --verbose: Use verbose console output [default=False]

Note: failed to enable realtime scheduling, continuing

Device specification

You can specify the source or sink device using a comma separated string of argument=value pairs. The always-up-to-date block documentation with examples is available right here.

FCD Source

Argument: Notes

fcd=<device-index>: 0-based device identifier, optional

device=hw:2: overrides the audio device

type=2: selects the dongle type, 1 for Classic, 2 for Pro+

The "device" argument overrides the audio device used by the underlying driver to access the dongle's IQ sample stream.

The "type" argument selects the dongle type, 1 for Classic, 2 for Pro+.

OsmoSDR Source

Argument: Notes

osmosdr=<device-index>: 0-based device identifier

buffers=<number-of-buffers>: Default is 32

buflen=<length-of-buffer>: Default is 256kB, must be multiple of 512

RTL-SDR Source

Argument: Notes

rtl=<device-index>: 0-based device identifier OR serial number

rtl_xtal=<frequency>: Frequency (Hz) used for the RTL chip, accepts eng notation

tuner_xtal=<frequency>: Frequency (Hz) used for the tuner chip, accepts eng notation

buffers=<number-of-buffers>: Default is 32

buflen=<length-of-buffer>: Default is 256kB, must be multiple of 512

direct_samp=0|1|2: Enable direct sampling mode on the RTL chip. 0: Disable, 1: use I channel, 2: use Q channel

offset_tune=0|1: Enable offset tune mode for E4000 tuners

NOTE: use rtl_eeprom -s to program your own serial number to the device

NOTE: if you don't specify rtl_xtal/tuner_xtal, the underlying driver will use 28.0MHz

RTL-SDR TCP Source

Argument: Notes

rtl_tcp=<hostname>:<port>: hostname defaults to "localhost", port to "1234"

psize=<payload-size>: Default is 16384 bytes

direct_samp=0|1|2: Enable direct sampling mode on the RTL chip 0=Off, 1=I-ADC input enabled, 2=Q-ADC input enabled

offset_tune=0|1: Enable offset tune mode for E4000 tuners

Miri Source

Argument: Notes

miri=<device-index>: 0-based device identifier

buffers=<number-of-buffers>: Default is 32

UHD Source / Sink

Argument Notes

uhd: Use this argument without a value

nchan=<channel-count>: For multichannel USRP configurations use the subdev parameter to specify stream mapping

subdev=<subdev-spec>: Examples: "A:0", "B:0", "A:0 B:0" when nchan=2. Refer original ettus documentation on this

lo_offset=<frequency>: Offset frequency in Hz, must be within daughterboard bandwidth. Accepts eng notation

Additional argument/value pairs will be passed to the underlying driver, for more information see specifying the subdevice and common device identifiers in the Ettus documentation.

bladeRF Source / Sink

Argument: Notes

bladerf[=0]: 0-based device identifier (optional)

fw='/path/to/the/firmware.img': program MCU firmware from given file. usually not needed. power cycle required.

fpga='/path/to/the/bitstream.rbf': load FPGA bitstream from given file. required only at first run at the moment.

HackRF Source / Sink

Argument: Notes

hackrf: Use this argument without a value

buffers=<number-of-buffers>: Default is 32

Only the first device found may be used at the moment because of libhackrf limitation.

Transmit support has been verified by using the crc-mmbTools DAB sdr transmitter.

IQ File Source

Argument: Notes

file=<path-to-file-name>

freq=<frequency>: Center frequency in Hz, accepts eng notation

rate=<sampling-rate>: Mandatory, in samples/s, accepts eng notation

repeat=true|false: Default is true

throttle=true|false: Throttle flow of samples, default is true

Examples

osmocom_siggen_nogui -a hackrf -f 100e6 --sweep -x 2e6 -y 10 -v

osmocom_siggen_nogui -a uhd,subdev=A:0 -f 100e6 --sweep -x 2e6 -y 10 -s 4e6 -v