We're getting the Stingray (part finally on order) and I'm investigating how to maintain calibration both transmit (single analog beamform) and receive (hybrid beamform to create 4-quadrant monopulse). One idea is to inject a calibration signal using a transmit path and then measuring it on the receive path(s). Is there any path with the combo XUD1A/ADAR1000EVAL1Z that allows a low-power loopback? If not, we'll have to assume a static (measured in the antenna chamber) calibration for the U/D converter and the beamformer, and just calibrate the multichannel transceiver using a separate set of cables/couplers.
[edited by: stetz at 8:36 PM (GMT -4) on 11 Aug 2022]