Mostly sunny, scattered cirrus clouds, and breezy. Mostly at the Rancho Alegre ISS2 and Sedgwick ISS3 sites today.
At ISS2 installed the sounding system and CL51 ceilometer, although neither are networked yet.
At ISS3, worked continued on diagnosing the 915 MHz wind profiler apparent clutter signal issue. John and Liz carried out further tests and using a VNA (Vector Network Analyzer) to look at the reflected signal in various areas of the antenna, appeared to have narrowed the problem down to a particular switching relay. However after bypassing that relay, the problem persisted so it is possible there are multiple issues. They did repair a couple of faulty cables and are considering returning some of the relays to Boulder for tests in the lab.
Also at ISS3, Gary met with the Sedgwick network engineer and got a comms link running to the main office which will give us high speed internet. We also installed a webcam (the network camera) and an aerosol sensor (a Purpleair sensor).
Liz (under antenna with VNA) and John working on the wind profiler antenna and relays.