WebLab unavailable (23 July)

The measurement system is not returning results to the server. The cause is known. However not many people are currently at Chalmers due to the summer holiday. There is currently no estimate when the system will be available again.
Koen Buisman.

Maintenance week (extended) – update 2

We have reduced the LO leakage from both TX and RX, resulting in a lower dc offset. Note that over time the dc offset tends to increase again. Tomorrow the DUT will be disconnected. As a result, even when RF WebLab seems to be up running; WebLab will not perform your measurement to avoid damaging hardware. Typically you will receive no results or an error message. Moreover, WebLab will remain in maintenance mode until Thursday 18th the latest. If WebLab will be fully available earlier, I will announce this here in the news section as usual.
Koen Buisman

Maintenance week – update 1

So far we have replaced two RF cables that showed signs of some damage. These are the cables between the VST transmitter and driver and between driver and DUT. For most experiments this should have no impact.
Furthermore, our connection to the university network has been improved. Most users will not notice this as their dominant delay is typically outside of Chalmers. Local users may see some improvement. Maintenance is still ongoing, primarily on the software side of RF WebLab. So interruptions will still occur.
Koen Buisman