Signal generator application
osmocom_siggen_nogui: [options]
Signal generator application
-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
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.
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+.
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
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
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
Argument
Notes
miri=<device-index>
0-based device identifier
buffers=<number-of-buffers>
Default is 32
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.
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.
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.
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
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