KOUC00NCL Site Information Form (site log v2.0) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr_v2.0.txt 0. Form Prepared by (full name) : Banian team (dittt.cartographie@gouv.nc) Date Prepared : 2025-08-20 Report Type : UPDATE If Update: Previous Site Log : kouc00ncl_20250804.log Modified/Added Sections : 4.1, 4.2 1. Site Identification of the GNSS Monument Site Name : Koumac Nine Character ID : KOUC00NCL Monument Inscription : NONE IERS DOMES Number : 92727S001 CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : 2.0 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 3.0 m Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 1996-04-22T01:30Z Geologic Characteristic : BEDROCK Bedrock Type : METAMORPHIC Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (0 cm/1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : (YES/NO/Name of the zone) Distance/activity : (multiple lines) Additional Information : Local number 4806-09e : Antenna is fixed to a 10cm diameter galvanized : Steel post approximately 2m above ground level : Post is cemented into a hole excavated : Approximately 3m deep in bedrock : Geodetic reference point is top-center of steel : coupler atop the steel mast 2. Site Location Information City or Town : KOUMAC State or Province : NORTH Country or Region : NCL Tectonic Plate : AUSTRALIAN Approximate Position (ITRF) X coordinate (m) : -5751222.662 Y coordinate (m) : 1617967.645 Z coordinate (m) : -2225744.218 Latitude (N is +) : -203331.31 Longitude (E is +) : +1641714.40 Elevation (m,ellips.) : 84.2 Additional Information : ITRF2000 (ep 97.0) coordinates : Alt : 23.14 MSL 3. GNSS Receiver Information 3.1 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01196 Firmware Version : 1E86 Elevation Cutoff Setting : 5 deg Date Installed : 1996-04-22T01:30Z Date Removed : 1999-05-18T20:12Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : LP01196 removed temporarily for firmware change : from 1E86 to CC00 3.2 Receiver Type : ASHTECH Z-XII3 Satellite System : GPS Serial Number : LP01196 Firmware Version : CC00 Elevation Cutoff Setting : 5 deg Date Installed : 1999-05-20T05:49Z Date Removed : 2006-05-16T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : No data were collected with this RX after : 2005-09-03T23:44 3.3 Receiver Type : TRIMBLE NETRS Satellite System : GPS Serial Number : 4545260775 Firmware Version : 1.15 Elevation Cutoff Setting : 5 deg Date Installed : 2006-05-16T00:00Z Date Removed : 2009-11-16T04:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.4 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.03 Elevation Cutoff Setting : 5 deg Date Installed : 2009-11-16T04:00Z Date Removed : 2010-01-20T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.5 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.05 Elevation Cutoff Setting : 5 deg Date Installed : 2010-01-20T00:00Z Date Removed : 2010-02-23T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.14 Elevation Cutoff Setting : 5 deg Date Installed : 2010-02-23T00:00Z Date Removed : 2010-06-21T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.7 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.15 Elevation Cutoff Setting : 5 deg Date Installed : 2010-06-21T00:00Z Date Removed : 2010-08-20T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.8 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.17 Elevation Cutoff Setting : 5 deg Date Installed : 2010-08-20T00:00Z Date Removed : 2010-12-06T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.9 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.19 Elevation Cutoff Setting : 5 deg Date Installed : 2010-12-06T00:00Z Date Removed : 2011-05-06T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.10 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.41 Elevation Cutoff Setting : 5 deg Date Installed : 2011-05-06T00:00Z Date Removed : 2011-08-11T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.11 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.42 Elevation Cutoff Setting : 5 deg Date Installed : 2011-08-11T00:00Z Date Removed : 2011-09-12T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.12 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.43 Elevation Cutoff Setting : 5 deg Date Installed : 2011-09-12T00:00Z Date Removed : 2012-03-27T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.13 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.45 Elevation Cutoff Setting : 5 deg Date Installed : 2012-03-27T00:00Z Date Removed : 2012-04-27T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.14 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.48 Elevation Cutoff Setting : 5 deg Date Installed : 2012-04-27T00:00Z Date Removed : 2013-02-20T02:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.15 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.70 Elevation Cutoff Setting : 5 deg Date Installed : 2013-02-20T02:00Z Date Removed : 2014-02-19T00:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.16 Receiver Type : TRIMBLE NETR5 Satellite System : GPS+GLO Serial Number : 4926K62590 Firmware Version : Nav 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2014-02-19T00:00Z Date Removed : 2014-04-22T20:50Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.17 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2014-04-22T21:00Z Date Removed : 2014-12-10T20:45Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.18 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 4.93 Elevation Cutoff Setting : 0 deg Date Installed : 2014-12-10T20:45Z Date Removed : 2015-01-15T06:30Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.19 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 4.85 Elevation Cutoff Setting : 0 deg Date Installed : 2015-01-15T06:30Z Date Removed : 2015-05-11T04:15Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.20 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.01 Elevation Cutoff Setting : 0 deg Date Installed : 2015-05-11T04:15Z Date Removed : 2015-08-05T02:50Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.21 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.03 Elevation Cutoff Setting : 0 deg Date Installed : 2015-08-05T02:50Z Date Removed : 2015-10-13T03:40Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.22 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.10 Elevation Cutoff Setting : 0 deg Date Installed : 2015-10-13T03:40Z Date Removed : 2016-06-20T23:50Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.23 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.14 Elevation Cutoff Setting : 0 deg Date Installed : 2016-06-20T23:50Z Date Removed : 2017-01-03T21:25Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.24 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.20 Elevation Cutoff Setting : 0 deg Date Installed : 2017-01-03T21:25Z Date Removed : 2017-03-26T23:50Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.25 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.22 Elevation Cutoff Setting : 0 deg Date Installed : 2017-03-26T23:50Z Date Removed : 2017-08-31T21:40Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.26 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.30 Elevation Cutoff Setting : 0 deg Date Installed : 2017-08-31T21:40Z Date Removed : 2018-11-26T05:14Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.27 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.37 / Boot 5.37 Elevation Cutoff Setting : 0 deg Date Installed : 2018-11-26T05:14Z Date Removed : 2020-04-22T05:25Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.28 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.44 Elevation Cutoff Setting : 0 deg Date Installed : 2020-04-22T05:25Z Date Removed : 2020-07-27T22:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.29 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2020-07-27T22:00Z Date Removed : 2021-04-13T22:30Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.30 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5338K45591 Firmware Version : Nav 5.50 Elevation Cutoff Setting : 0 deg Date Installed : 2021-04-13T22:30Z Date Removed : 2021-12-02T15:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.31 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5341K46249 Firmware Version : Nav 5.50 Elevation Cutoff Setting : 0 deg Date Installed : 2022-01-24T02:38Z Date Removed : 2024-08-07T04:00Z Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.32 Receiver Type : TRIMBLE NETR9 Satellite System : GPS+GLO+GAL+BDS+QZSS Serial Number : 5341K46249 Firmware Version : Nav 5.60 Elevation Cutoff Setting : 0 deg Date Installed : 2024-08-07T04:00Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : (deg C) +/- (deg C) Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+IRNSS+SBAS) Serial Number : (A20, but note the first A5 is used in SINEX) Firmware Version : (A11) Elevation Cutoff Setting : (deg) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 4. GNSS Antenna Information 4.1 Antenna Type : ASH700936D_M SNOW Serial Number : 12463 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : SNOW Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : 1996-04-22T01:30Z Date Removed : 2006-05-16T00:00Z Additional Information : (multiple lines) 4.2 Antenna Type : TRM41249.00 TZGD Serial Number : 60103928 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : TZGD Radome Serial Number : Antenna Cable Type : TRIMBLE LMR400 Antenna Cable Length : 30 m Date Installed : 2006-05-16T00:00Z Date Removed : 2009-11-16T04:00Z Additional Information : (multiple lines) 4.3 Antenna Type : TRM57971.00 TZGD Serial Number : 1440921127 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : TZGD Radome Serial Number : Antenna Cable Type : TRIMBLE LMR400 Antenna Cable Length : 30 m Date Installed : 2009-11-17T00:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : (multiple lines) 4.x Antenna Type : (A20, from rcvr_ant.tab; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from "antenna.gra"; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.1 Tied Marker Name : KOUM Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : 77.639 m dy (m) : 247.252 m dz (m) : -20.954 m Accuracy (mm) : 10 mm Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : monument stamped KOUMAC1 1989 GPS 5.x Tied Marker Name : Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 6. Frequency Standard 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7. Collocation Information 7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.x Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.2.x Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.x Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.5.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : Gouvernement de la Nouvelle-Calédonie - : Direction des Infrastructures, de la Topographie : et des Transports Terrestres : Service Topographique Preferred Abbreviation : DITTT Mailing Address : Rue Edouard Unger 1 Bis / Nouméa 98800 : Nouvelle-Calédonie : https://dittt.gouv.nc/information-geographique/p : our-les-professionnels/service-de-positionnement : -banian : New Caledonia Primary Contact Contact Name : Banian team Telephone (primary) : Telephone (secondary) : Fax : E-mail : dittt.cartographie@gouv.nc Secondary Contact Contact Name : Banian team Telephone (primary) : +687280327 Telephone (secondary) : +687280322 Fax : E-mail : banian@banian.gouv.nc Additional Information : Reference contact : perrine.drain@gouv.nc : Web site : : https://dittt.gouv.nc/information-geographique/p : our-les-professionnels/service-de-positionnement : -banian 12. Responsible Agency (if different from 11.) Agency : (multiple lines) Preferred Abbreviation : (A10) Mailing Address : (multiple lines) Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : (multiple lines) 13. More Information Primary Data Center : IGN Secondary Data Center : CDDIS URL for More Information : https://dtsi-sgt.maps.arcgis.com/apps/webappview : er/index.html?id=68877bb8c02344b3ab4c0130cafea49 : f Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : (Y or URL) Site Pictures : (Y or URL) Additional Information : Station BANIAN ID = 6 : Older data are at SIO Antenna Graphics with Dimensions ASH700936D_M ----- / + \ <-- 0.128 L2 | + | <-- 0.110 L1 +--------------------------------------------------+ <-- 0.102 TCR | | | | | | | | +-+--------------------------------------------------+-+ <-- 0.038 +-------------------+-------------+--------------------+ <-- 0.035 BCR | | =| | +------x------+ <-- 0.000 BPA=ARP <-- 0.381 --> TRM41249.00 : from 2006/05/16 to 2009/11/16 / ----------------------+--------------------- \ <-- 0.0714 L1 + + + <-- 0.0682 L2 \ -------------------------------------------- / \ / \ / \-----+-----/ <-- 0.0000 ARP=BAM <-- 0.3396 --> TRM57971.00 : since 2009/11/16 / --------------------------------------------- \ + + \ --------------------------------------------- / \ / \ / \-----+-----/ <-- 0.0000 BAM=ARP RXC=NRP <-- 0.3396 --> Notches ARP: Antenna Reference Point L1 : L1 Phase Center L2 : L2 Phase Center TCR: Top of Chokering BCR: Bottom of Chokering TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier