GNU Radio-Enabled Capabilities at the Allen Telescope Array
summary
The team installs two USRPs N320 and N321 at the 42-antenna Allen Telescope Array and implements a GNU Radio interface: a gr-ata module with a control block (antenna pointing, LNA setup, stow), observation blocks (track, on/off, custom scans) and an IF-switch block to route antennas to USRP inputs. Each USRP can take two inputs so the system captures either two antennas dual-pol or four antennas single-pol. A preliminary H I detection toward 2350+646 spans −100 to 0 km/s and matches LAB survey velocities, uncalibrated but clearly present.
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