On 04/08/2023 10:47, Maxim Belotserkovsky wrote:
Hi. I've successfully used my B200 mini-i under GNU radio in a ubuntu
container. I've recently found a need to use simple routines just to
send/receive canned data samples from Windows. There are some example
utility programs that got installed a while back when I first
installed the UHD drive, which are located under "C:\Program
Files\UHD\lib\uhd\examples". I've successfully used
"rx_samples_to_file" from Windows CMD shell to receive usable data
transmitted from an external RF source. However, when I try using any
of the transmit routines, such as "tx_sampes_from_file" or
"tx_waveforms" (including just sending a canned SINE waveform),
nothing happens - all I get when I hook up the TX output to the scope
is just background noise. I know it's not the physical device, because
it still works with GR. For example, I've used this:
"tx_waveforms --wave-type SINE --wave-freq 1.0e3 --freq 70.0e6 --rate
1.0e6 --gain 20 --bw 200.0e3".
Thanks
--
Maxim Belotserkovsky
ma...@gotenna.com
<https://gotenna.com/>
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Try turning the gain up 10-20dB. The gain-control range on TX on the
B200 series is 90dB. So at 20dB, you're about 70dB
below the maximum output level.
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