On 07/12/2018 02:45 AM, Berker IŞIK wrote:
Hi,
thanks for your help.
I don't know the mailing rules precisely beacuse I just started. Sorry.
"How are you connected to the spectrum analyser?"
I connect an antenna to TX port. I look spectrum through air.
"What is your gain setting? "
I didn't set any gain. How can i adjust it?
use the --gain setting, as shown below:
UHD TX Waveforms Allowed options:
--help help message
--args arg single uhd device address args
--spb arg (=0) samples per buffer, 0 for default
--nsamps arg (=0) total number of samples to transmit
--rate arg rate of outgoing samples
--freq arg RF center frequency in Hz
--ampl arg (=0.300000012) amplitude of the waveform [0 to 0.7]
--gain arg gain for the RF chain
--ant arg antenna selection
--subdev arg subdevice specification
--bw arg analog frontend filter bandwidth in Hz
--wave-type arg (=CONST) waveform type (CONST, SQUARE, RAMP, SINE)
--wave-freq arg (=0) waveform frequency in Hz
--ref arg (=internal) clock reference (internal, external, mimo,
gpsdo)
--pps arg PPS source (internal, external, mimo, gpsdo)
--otw arg (=sc16) specify the over-the-wire sample mode
--channels arg (=0) which channels to use (specify "0", "1",
"0,1",
etc)
--int-n tune USRP with integer-N tuning
All of the UHD examples accept a "--help" option to give you a list of
command-line parameters.
The TX gain range on the B210 is about 90dB, so try something like 70
for the gain setting.
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