GELL Site Information Form (site log) International GNSS Service See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : GREF Operator (operator.gref@bkg.bund.de) Date Prepared : 2024-02-15 Report Type : UPDATE If Update: Previous Site Log : gell_20230420.log Modified/Added Sections : 3.17, 3.18, 8.1.3, 8.1.1, 8.1.2, 8.2.2, 8.2.1, : 8.2.3, 8.3.3, 8.3.1, 8.3.2, 13 1. Site Identification of the GNSS Monument Site Name : Gellin Four Character ID : GELL Monument Inscription : IERS DOMES Number : 10908M001 CDP Number : (A4) Monument Description : Steelpipe with heat protection Height of the Monument : 1.90 m Monument Foundation : 2007 Foundation Depth : 6 m Marker Description : SURVEY MARKER BOLT ON THE PILLAR Date Installed : 2007-09-06 Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) 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 : Survey Marker Bolt on a pillar. : Antenna mounted with a special screw : adapter on a rivet thread of a circular : tube of steel filled with concrete, : 8 m length, : placed on the ground at waterworks of Gellin 2. Site Location Information City or Town : Gellin State or Province : Mecklenburg-Vorpommern Country : Germany Tectonic Plate : EURASIAN Approximate Position (ITRF) X coordinate (m) : 3688287.200 Y coordinate (m) : 941628.100 Z coordinate (m) : 5100608.200 Latitude (N is +) : +532700.96 Longitude (E is +) : +0141918.52 Elevation (m,ellips.) : 80.9 Additional Information : (multiple lines) 3. GNSS Receiver Information 3.1 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : AG0XLFRDTZ4 Firmware Version : 2.6.0 APR,18,2007 Elevation Cutoff Setting : 0 deg Date Installed : 2007-11-07T14:00Z Date Removed : 2008-01-30T06:30Z Temperature Stabiliz. : none Additional Information : Additional Number : LE4852 on the : type level 3.2 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : AG0XLFRDTZ4 Firmware Version : 2.6.1 JAN,10,2008 Elevation Cutoff Setting : 0 deg Date Installed : 2008-01-30T06:30Z Date Removed : 2013-05-15T12:50Z Temperature Stabiliz. : none Additional Information : Additional Number : LE4852 on the : type level 3.3 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO+GAL+SBAS Serial Number : 356686 Firmware Version : 8.70/6.112 Elevation Cutoff Setting : 0 deg Date Installed : 2013-05-15T13:30Z Date Removed : 2014-07-29T08:00Z Temperature Stabiliz. : none Additional Information : ME serial number BDU10090268 3.4 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1830178 Firmware Version : 3.03/6.214 Elevation Cutoff Setting : 0 deg Date Installed : 2014-07-29T13:00Z Date Removed : 2016-04-22T06:00Z Temperature Stabiliz. : none Additional Information : ME serial number BDU11400634 3.5 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1830178 Firmware Version : 3.22.1818 Elevation Cutoff Setting : 0 deg Date Installed : 2016-04-22T06:00Z Date Removed : 2016-07-14T11:30Z Temperature Stabiliz. : none Additional Information : ME serial number BDU11400634 3.6 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+SBAS Serial Number : 1830178 Firmware Version : 4.00.335 Elevation Cutoff Setting : 0 deg Date Installed : 2016-07-14T11:30Z Date Removed : 2016-12-27T13:00Z Temperature Stabiliz. : none Additional Information : ME serial number BDU11400634 3.7 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.02.386 Elevation Cutoff Setting : 0 deg Date Installed : 2016-12-27T13:00Z Date Removed : 2017-04-11T05:00Z Temperature Stabiliz. : none Additional Information : ME serial number BDU11400634 3.8 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.11.606 Elevation Cutoff Setting : 0 deg Date Installed : 2017-04-11T05:00Z Date Removed : 2018-05-28T00:00Z Temperature Stabiliz. : none Additional Information : ME serial number BDU11400634 3.9 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.11/6.523 Elevation Cutoff Setting : 0 deg Date Installed : 2018-05-28T00:00Z Date Removed : 2018-07-11T11:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.10 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.11.606 Elevation Cutoff Setting : 0 deg Date Installed : 2018-07-11T11:00Z Date Removed : 2018-07-11T12:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.11 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.20.232 Elevation Cutoff Setting : 0 deg Date Installed : 2018-07-11T12:00Z Date Removed : 2019-05-17T11:30Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.12 Receiver Type : LEICA GR25 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1830178 Firmware Version : 4.31.101/6.525 Elevation Cutoff Setting : 0 deg Date Installed : 2019-05-17T11:30Z Date Removed : 2019-11-04T10:00Z Temperature Stabiliz. : none Additional Information : (multiple lines) 3.13 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1831170 Firmware Version : 4.31.101 Elevation Cutoff Setting : 0 deg Date Installed : 2019-11-04T10:00Z Date Removed : 2021-06-01T12:40Z Temperature Stabiliz. : none Additional Information : ME serial number BMGZ16510098D 3.14 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1831170 Firmware Version : 4.50/7.710 Elevation Cutoff Setting : 0 deg Date Installed : 2021-06-01T12:40Z Date Removed : 2022-03-03T07:14Z Temperature Stabiliz. : none Additional Information : ME serial number BMGZ16510098D 3.15 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1831170 Firmware Version : 4.52/7.711 Elevation Cutoff Setting : 0 deg Date Installed : 2022-03-03T07:14Z Date Removed : 2022-09-05T12:15Z Temperature Stabiliz. : none Additional Information : ME serial number BMGZ16510098D 3.16 Receiver Type : LEICA GR50 Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 1831170 Firmware Version : 4.60/7.811 Elevation Cutoff Setting : 0 deg Date Installed : 2022-09-05T12:15Z Date Removed : 2023-02-08T12:36Z Temperature Stabiliz. : none Additional Information : ME serial number BMGZ16510098D 3.17 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 02347 Firmware Version : 4.1.06-221128 Elevation Cutoff Setting : 0 deg Date Installed : 2023-02-08T12:36Z Date Removed : 2024-02-15T09:11Z Temperature Stabiliz. : none Additional Information : Board Id : 0RHMZ03JF0OJA0QYWF011R6OE8 3.18 Receiver Type : JAVAD TRE_3 DELTA Satellite System : GPS+GLO+GAL+BDS+SBAS Serial Number : 02347 Firmware Version : 4.3.00-231129 Elevation Cutoff Setting : 0 deg Date Installed : 2024-02-15T09:11Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : none Additional Information : Board Id : 0RHMZ03JF0OJA0QYWF011R6OE8 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 : TPSCR3_GGD CONE Serial Number : 217-0624 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0450 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : CONE Radome Serial Number : Antenna Cable Type : RG213 Antenna Cable Length : 6 m Date Installed : 2007-11-07T14:00Z Date Removed : 2013-05-15T12:50Z Additional Information : Antenna individual calibrated : absolute by GEO++ 4.2 Antenna Type : LEIAR25.R4 LEIT Serial Number : 725266 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0450 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIT Radome Serial Number : Antenna Cable Type : RG213 Antenna Cable Length : 6 m Date Installed : 2013-05-15T13:30Z Date Removed : 2018-07-11T12:00Z Additional Information : Antenna individual calibrated : absolute by GEO++ 4.3 Antenna Type : LEIAR25.R3 LEIT Serial Number : 10170027 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0450 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIT Radome Serial Number : Antenna Cable Type : RG213 Antenna Cable Length : 6 m Date Installed : 2018-07-11T12:00Z Date Removed : 2019-11-04T10:00Z Additional Information : Antenna individual calibrated absolute by Uni : Bonn and by GEO++ 4.4 Antenna Type : LEIAR25.R3 LEIT Serial Number : 09390011 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 0.0450 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIT Radome Serial Number : Antenna Cable Type : RG213 Antenna Cable Length : 6 m Date Installed : 2019-11-04T10:00Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Antenna individual calibrated absolute by UNIBN : 2019-09-23 and by Senatverwaltung Berlin : 2019-08-22 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.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 6.1 Standard Type : INTERNAL Input Frequency : (if external) Effective Dates : 2007-09-06/CCYY-MM-DD Notes : (multiple lines) 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 7.1 Instrumentation Type : GNSS GELL01DEU Status : PERMANENT Effective Dates : 2018-07-11/CCYY-MM-DD Notes : Secondary Receiver at the same antenna. : More information and data available on : request. 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 8.1.1 Humidity Sensor Model : HMP45A-P Manufacturer : Vaisala Oyi Serial Number : X2930002 Data Sampling Interval : 10 sec Accuracy (% rel h) : 1 % rel h Aspiration : CAPACITIVY THIN FILM POLYMER Height Diff to Ant : -1 m Calibration date : 2007-03-28 Effective Dates : 2007-11-07/2019-11-04 Notes : The humidity sensor is 1.0 m : below the antenna. 8.1.2 Humidity Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : M3910027 Data Sampling Interval : 10 sec Accuracy (% rel h) : 3 % rel h Aspiration : NATURAL Height Diff to Ant : 0 m Calibration date : 2016-09-27 Effective Dates : 2021-08-24/2023-04-20 Notes : Vaisala WXT530 SN: M4050152 : Humidity Sensor is at the height of the antenna : capacitive thin film polymer HUMICAP 180 sensor 8.1.3 Humidity Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : U4840079 Data Sampling Interval : 10 sec Accuracy (% rel h) : 3 % rel h Aspiration : NATURAL Height Diff to Ant : 0 m Calibration date : 2022-12-19 Effective Dates : 2023-04-20/CCYY-MM-DD Notes : Vaisala WXT530 SN: M4050152 : Humidity Sensor is at the height of the antenna : capacitive thin film polymer HUMICAP 180 sensor 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) 8.2.1 Pressure Sensor Model : PTU200 Manufacturer : Vaisala Oyi Serial Number : X2930001 Data Sampling Interval : 10 sec Accuracy : 0.1 hPa Height Diff to Ant : -1 m Calibration date : 2002-07-15 Effective Dates : 2007-11-07/2019-11-04 Notes : The pressure Sensor is : 1.0 m below the antenna. 8.2.2 Pressure Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : M3910027 Data Sampling Interval : 10 sec Accuracy : 1 hPa Height Diff to Ant : 0 m Calibration date : 2016-09-27 Effective Dates : 2021-08-24/2023-04-20 Notes : Vaisala WXT530 SN: M4050152 : Pressure Sensor is at the height of the antenna : capacitive silicon BAROCAP sensor 8.2.3 Pressure Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : U4840079 Data Sampling Interval : 10 sec Accuracy : 1 hPa Height Diff to Ant : 0 m Calibration date : 2022-12-19 Effective Dates : 2023-04-20/CCYY-MM-DD Notes : Vaisala WXT530 SN: M4050152 : Pressure Sensor is at the height of the antenna : capacitive silicon BAROCAP sensor 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) 8.3.1 Temp. Sensor Model : HMP45A-P Manufacturer : Vaisala Oyi Serial Number : X2930002 Data Sampling Interval : 10 sec Accuracy : 0.2 deg C Aspiration : RESISTIVE PLATINUM PROBE Height Diff to Ant : -1 m Calibration date : 2007-03-28 Effective Dates : 2007-11-07/2019-11-04 Notes : The temperature sensor is : 1.0 m below the antenna. 8.3.2 Temp. Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : M3910027 Data Sampling Interval : 10 sec Accuracy : 0.3 deg C Aspiration : NATURAL Height Diff to Ant : 0 m Calibration date : 2016-09-27 Effective Dates : 2021-08-24/2023-04-20 Notes : Vaisala WXT530 SN: M4050152 : Temperature Sensor is at the height of the : antenna : capacitive ceramic THERMOCAP sensor 8.3.3 Temp. Sensor Model : WXTPTU Manufacturer : Vaisala Serial Number : U4840079 Data Sampling Interval : 10 sec Accuracy : 0.3 deg C Aspiration : NATURAL Height Diff to Ant : 0 m Calibration date : 2022-12-19 Effective Dates : 2023-04-20/CCYY-MM-DD Notes : Vaisala WXT530 SN: M4050152 : Temperature Sensor is at the height of the : antenna : capacitive ceramic THERMOCAP sensor 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) 8.5.1 Other Instrumentation : Wind Azimut : Wind Sensor Model WXT530 (not heated) : Manufacturer Vaisala : Serial Number Wind Sensor M3450030 : Data Sampling Interval 10 sec : Accuracy 3 deg : Height Diff to Ant 0.0 m : Test date 2016-09-27 : Effective Dates 2021-08-24/CCYY-MM-DD : Vaisala WXT530 SN: M4050152 : Notes Wind Sensor is at the height of the : antenna : Notes ultrasonic WINDCAP sensor 8.5.2 Other Instrumentation : Wind Speed : Wind Sensor Model WXT530 (not heated) : Manufacturer Vaisala : Serial Number Wind Sensor M3450030 : Data Sampling Interval 10 sec : Accuracy : measurement values 0..35 m/s 0.3 m/s or 3% : measurement values 36..60 m/s 5% : Height Diff to Ant 0.0 m : Test date 2016-09-27 : Effective Dates 2021-08-24/CCYY-MM-DD : Vaisala WXT530 SN: M4050152 : Notes Wind Sensor is at the height of the : antenna : Notes ultrasonic WINDCAP sensor 8.5.3 Other Instrumentation : Rain Increment : Rain Sensor Model WXT530 (heated) : Manufacturer Vaisala : Serial Number Rain Sensor M3450030 : Data Sampling Interval 10 sec : Accuracy 5 % : Height Diff to Ant 0.0 m : Test date 2016-09-27 : Effective Dates 2021-08-24/CCYY-MM-DD : Vaisala WXT530 SN: M4050152 : Notes Rain Sensor is at the height of the : antenna : Notes piezoelectrical RAINCAP sensor 8.5.4 Other Instrumentation : Hail Indicator : Hail Sensor Model WXT530 (not heated) : Manufacturer Vaisala : Serial Number Hail Sensor M3450030 : Data Sampling Interval 10 sec : Accuracy 5 % : Height Diff to Ant 0.0 m : Test date 2016-09-27 : Effective Dates 2021-08-24/CCYY-MM-DD : Vaisala WXT530 SN: M4050152 : Notes Hail Sensor is at the height of the : antenna : Notes piezoelectrical RAINCAP sensor 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 : Bundesamt fuer Kartographie und Geodaesie : Department of Geodaesie Preferred Abbreviation : BKG Mailing Address : Richard-Strauss-Allee 11 : D-60598 Frankfurt a.M. : Germany Primary Contact Contact Name : GREF Operator Telephone (primary) : +49 341 5634410 Telephone (secondary) : +49 341 5634432 Fax : +49 341 5634415 E-mail : operator.gref@bkg.bund.de Secondary Contact Contact Name : BKG GNSS Data Center Telephone (primary) : +49 69 6333274 Telephone (secondary) : +49 69 63331 Fax : +49 69 6333425 E-mail : bkg-gdc@bkg.bund.de Additional Information : (multiple lines) 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 : BKG Secondary Data Center : BEV URL for More Information : https://gref.bkg.bund.de 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 Additional Information : (multiple lines) Antenna Graphics with Dimensions TPSCR3_GGD --------- / + \ <-- 0.104 = L2 | + | <-- 0.081 = L1 +--------------------------------------------------+ <-- 0.071 = TCR | | | | | | | | +-----------------+-------------+------------------+ <-- 0.003 = BCR +-----x-----+ <-- 0.000 BPA=ARP <-- 0.326 --> LEIAR25.R4 +-------+ <-- 0.1995 / \ +---+-------------+---+ <-- 0.1606 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 TGP: Top of Ground Plane BGP: Bottom of Ground Plane TPA: Top of Preamplifier BPA: Bottom of Preamplifier TOP: Top of Pole BOP: Bottom of Pole All dimensions are in meters.