Geodesy & Positioning (geodeticenquiries@os.uk) 2026-01-09 UPDATE Killin KILN 0 0 19127M001 2 Concrete plinth Centre of mount thread on plane of antenna ARP 2008-12-17 Killin STIRLING 356202 5.0 0.0 2008-12-17T10:30:00Z 356202 5.0 0.0 2008-12-19T17:40:00Z 495298 0.0 0.0 2009-08-12T11:30:00Z 495298 0.0 0.0 2010-05-16T21:40:00Z ME firmware v4.007 356612 0.0 0.0 2011-12-07T10:29:00Z ME firmware v6.112 356612 0.0 0.0 2015-06-01T13:16:00Z 5803R40157 0.0 0.0 2018-09-10T11:20:00Z 5803R40157 0.0 0.0 2018-10-24T10:40:00Z 5803R40157 0.0 0.0 2019-09-13T06:50:00Z 5803R40157 0.0 0.0 2020-02-25T08:40:00Z 5803R40157 0.0 0.0 2020-09-28T09:58:00Z 5803R40157 0.0 0.0 2021-11-05T12:52:00Z 5803R40157 0.0 0.0 2022-06-16T08:39:00Z 5803R40157 0.0 0.0 2023-04-05T15:49:00Z 5803R40157 0.0 0.0 2023-09-01T15:36:00Z 5803R40157 0.0 0.0 2024-02-05T16:23:00Z 5803R40157 0.0 0.0 2025-05-08T15:20:00Z 5803R40157 0.0 0.0 2026-01-09T11:55:00Z 5803R40157 0.0 0.0 2026-01-09T11:55:00Z 08450007 0.0 0.0 0.0 0.0 24.0 2008-12-17T10:30:00Z 2008-12-17 ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier ------------------------------------------------------------------------------ LEIAT504 L1/L2 Dorne Margolin antenna with chokerings (designed after DORNE MARGOLIN T) +-------+ <-- 0.1393 / + \ <-- 0.1282 L2 | + | <-- 0.1093 L1 +-----------------+-------------+------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.1020 BCR | | | | +------x------+ <-- 0.000 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier]]> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier ------------------------------------------------------------------------------ LEIAT504 L1/L2 Dorne Margolin antenna with chokerings (designed after DORNE MARGOLIN T) +-------+ <-- 0.1393 / + \ <-- 0.1282 L2 | + | <-- 0.1093 L1 +-----------------+-------------+------------------+ <-- 0.1020 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.0380 +-------------------+-------------+--------------------+ <-- 0.1020 BCR | | | | +------x------+ <-- 0.000 BPA=ARP <-- 0.3794 --> ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier]]>