Geodesy & Positioning (geodeticenquiries@os.uk) 2025-11-11 UPDATE Plymouth PMTH 0 0 13229M001 1.8 Roof of single storey building Centre of mount thread on plane of antenna ARP 2004-02-13 Plymouth PLYMOUTH 80166 5.0 0.0 2004-02-13T00:00:00Z 0132248 5.0 0.0 2005-02-16T00:00:00Z 356470 5.0 0.0 2009-02-04T12:50:00Z 356470 5.0 0.0 2010-05-16T23:27:00Z ME firmware v4.005 356256 0.0 0.0 2011-06-27T08:54:00Z ME firmware v4.007 356256 0.0 0.0 2012-07-03T08:46:00Z ME firmware v6.112 356256 0.0 0.0 2015-06-04T10:42:00Z 3022773 0.0 0.0 2018-10-23T10:29:00Z 3022773 0.0 0.0 2019-08-27T09:40:00Z 3022773 0.0 0.0 2020-03-06T10:39:00Z 3022773 0.0 0.0 2021-02-04T14:49:00Z 3022773 0.0 0.0 2021-02-08T10:46:00Z 3022773 0.0 0.0 2021-04-29T08:58:00Z Number of BDS observables increased by addition of ?6X observable type 3022773 0.0 2022-09-02T14:24:00Z Number of BDS observables increased by addition of ?6X observable type 3022773 0.0 2025-11-11T11:52:00Z Number of BDS observables increased by addition of ?6X observable type 3022773 0.0 2025-11-11T11:52:00Z 1240 0.0 0.0 0.0 0.0 20.0 2004-02-13T00:00:00Z 08470006 0.0 0.0 0.0 0.0 30.0 2009-02-04T12:50:00Z 2004-02-13 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]]>