After checking, it would appear that the 70cm receiver has gone down, or the antenna has been damaged in the recent high winds.
We will get onto this as soon as time permits, and will update on here when the problem has been rectified. We will also fit the new receive preamps if time permits.
73 Kay
G8NZR
UPDATE (March): Following the current virus lockdown situation, the 70cm RX will have to stay inoperative at the moment.
Watch this space for updates.

UPDATE (May): Following the minor relaxation of the lockdown during May, we are planning a visit to site sometime in June. We can operate within the current social distancing rules.