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29-09-2021
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Anchoring LBA and HBA antennas

Submitter: Ronald Schrik
Description: Zabet Ahmadi has been working for Astron for many years, constructing LOFAR stations all over Europe. This season he is supporting Maintenance and is occupied with issues from the LOCAL report. This report describes the effort which is required to improve the stations from their current state in such a way, that they can be used another decade.
Anchoring is a big issue, some of you may remember the quite severe storm damage from early this year.
In a few months Zabet has been able to restore the anchoring of all HBA tiles and improved a lot of LBA’s with a new type of anchor. Quite an achievement considering the amount of work required. For this, the LBA’s need to be completely removed, the ground leveled out, followed by a complete the rebuild of the antenna.
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