New Allen Telescope Array Development

At The ATA/GNU Radio hackathon (May 13 to 17, 2019) Tim O'Shea tim@deepsig.io installed a B205mini-i SRD permanently at the ATA.

The SDR plugged into a USB port on bl-ata-c0.

To access the SDR:

log into jrseti@digihead ssh davidm@bl-ata-c0/davidm

The SDR is operated from a docker container. To start is:

singularity run -B /datax:/dataxmount docker://ettusresearch/ubuntu-uhd:18.04-UHD-3.14.0.0

Then within the singularity for recording its something like:

/usr/lib/uhd/examples/rx_samples_to_file --freq 629.1456e6 --rate 40e6 --gain 60 --file /dataxmount/2019-05-16/output_test_file.16ic --args type=b200

In the above example the data will be placed in /datax directory. The data is raw (no meta info) and is 16 bit signed I/Q.

Note that a rate of 40M/s gets overflows. 30 does also. 10 is good, the disk can keep up.