Entire Session

Session: Oct 2019 (session 3)

Wavelengths: cm

Comment

To give feedback on this entire session, click here

Entire Session Feedback

Onsala (Jun Yang at Mon Oct 28 09:30:02 2019) Success:

The problem of the polarisation swap, found in N19C3, was fixed just before EM131D.

Jodrell_Bank (Jimmy Cullen at Wed Jan 22 17:02:59 2020) Minor failures: RFI

A new source of RFI has been identified at Jodrell Bank which it appears has had very deleterious effects on all the Lovell L band observations for this session. This new RFI is approximately 30 dB above the noise and 20 MHz wide, spanning 1472 - 1492 MHz.

The RFI is believed to be for a 4G+ mobile phone service which will bridge the gap between 4G and 5G. It is thought that the signal provides coverage to the Manchester metropolitan area, and we can see this at Pickmere and Darnall too.

This signal was first observed in September / October 2019 and we are still devising methods to mitigate its effects.

I have not produced ANTABFS files for any of the Lovell L band observations.