Geodesy & Positioning (geodeticenquiries@os.uk) 2026-01-08 UPDATE Dundee DUDE 0 0 1.5 Breakwater concrete pile Centre of mount thread on plane of antenna ARP 2011-09-20 Dundee Dundee City ME version 4.005 356511 0.0 0.0 2011-09-20T14:01:00Z ME version 4.007 356511 0.0 0.0 2011-11-10T09:13:00Z ME version v6.112 356511 0.0 0.0 2015-05-29T09:28:00Z ME version v6.112 356617 0.0 0.0 2016-06-08T09:50:00Z 5803R40148 0.0 0.0 2018-08-22T11:15:00Z 5803R40148 0.0 0.0 2018-10-23T12:45:00Z 5803R40148 0.0 0.0 2019-09-04T13:10:00Z 5803R40148 0.0 0.0 2020-02-19T15:55:00Z 5803R40148 0.0 0.0 2020-09-25T10:40:00Z 5803R40148 0.0 0.0 2021-11-03T13:58:00Z 5803R40148 0.0 0.0 2022-06-15T15:11:00Z 5803R40148 0.0 0.0 2023-04-03T15:15:00Z 5803R40148 0.0 0.0 2023-08-31T14:59:00Z 5803R40148 0.0 0.0 2024-02-05T16:15:00Z 5803R40148 0.0 0.0 2025-05-08T15:15:00Z 5803R40148 0.0 0.0 2026-01-08T15:42:00Z 5803R40148 0.0 0.0 2026-01-08T15:42:00Z 08470002 0.0 0.0 0.0 0.0 25.0 2011-09-20T14:01:00Z 19087012 0.0 0.0 0.0 0.0 25.0 2018-01-09T10:31:00Z 2011-09-20 ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering BPA: Bottom of Preamplifier ------------------------------------------------------------------------------ LEIAR25 +-------+ <-- 0.1995 / + \ | + | |---+-------------+---| <-- 0.1614 TCR |-----------------------------| |-------------------------------------| |---------------------------------------------| +---------------------------------------------------+ | | | | | | | | +-+---------------------------------------------------+-+ +--------------------+-------------+--------------------+ <-- 0.0320 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3802 --> 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 ------------------------------------------------------------------------------ LEIAR25 +-------+ <-- 0.1995 / + \ | + | |---+-------------+---| <-- 0.1614 TCR |-----------------------------| |-------------------------------------| |---------------------------------------------| +---------------------------------------------------+ | | | | | | | | +-+---------------------------------------------------+-+ +--------------------+-------------+--------------------+ <-- 0.0320 BCR | | | | +------x------+ <-- 0.0000 BPA=ARP <-- 0.3802 --> 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]]>