CONZ Site Information Form (site log) International GNSS Service See Instructions at: ftp://igscb.jpl.nasa.gov/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Rudolf Stoeger Date Prepared : 2013-05-27 Report Type : UPDATE If Update: Previous Site Log : conz_20121007.log Modified/Added Sections : 3.15, 3.16, 6.7, 6.8, 11 1. Site Identification of the GNSS Monument Site Name : Concepcion - TIGO Four Character ID : CONZ Monument Inscription : IERS DOMES Number : 41719M002 CDP Number : Monument Description : CONCRETE PILLAR STAINLESS STEAL CONSTRUCTION Height of the Monument : 2.0 m Monument Foundation : CONCRETE BLOCK Foundation Depth : 3.0 m Marker Description : 5/8" THREAD Date Installed : 2002-05-16T12:00Z Geologic Characteristic : CLAY Bedrock Type : Bedrock Condition : Fracture Spacing : Fault zones nearby : Distance/activity : Additional Information : The site is located in about 20km distance : to the pacific ocean and about 150km from : the nearest vulcanoes of the Andes. 2. Site Location Information City or Town : Concepcion State or Province : VIII Region Country : Chile Tectonic Plate : SOUTH-AMERICAN Approximate Position (ITRF) X coordinate (m) : 1492007.790 Y coordinate (m) : -4887911.140 Z coordinate (m) : -3803640.120 Latitude (N is +) : -365037.54 Longitude (E is +) : -0730131.73 Elevation (m,ellips.) : 00181.2 Additional Information : The site is at the TIGO observatory at the : campus of the Universidad de Concepcion. 3. GNSS Receiver Information 3.1 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : MT302041021 Firmware Version : RE014 2.2 Elevation Cutoff Setting : 0 deg Date Installed : 2002-05-16T12:00Z Date Removed : 2002-11-12T12:30Z Temperature Stabiliz. : 5 Additional Information : Additional number LE2130 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.2 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : MT302041021 Firmware Version : 2.2 Jun,13,2002 p3 Elevation Cutoff Setting : 0 deg Date Installed : 2002-11-12T12:30Z Date Removed : 2003-10-17T08:30Z Temperature Stabiliz. : 5 Additional Information : Additional number LE2130 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.3 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : MT302041021 Firmware Version : 2.3p2 Elevation Cutoff Setting : 0 deg Date Installed : 2003-10-17T08:30Z Date Removed : 2004-08-24T17:52Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE2130 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.4 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : AGBVRU1GGE8 Firmware Version : 2.3 Apr28,2004 p4 Elevation Cutoff Setting : 0 deg Date Installed : 2004-10-14T20:41Z Date Removed : 2005-07-26T08:00Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE4851 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.5 Receiver Type : JPS LEGACY Satellite System : GPS+GLO Serial Number : AGBVRU1GGE8 Firmware Version : 2.5 Jun,22,2005 p1 Elevation Cutoff Setting : 0 deg Date Installed : 2005-07-26T08:00Z Date Removed : 2006-06-22T15:30Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE4851 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.6 Receiver Type : TPS E_GGD Satellite System : GPS+GLO Serial Number : AGBVRU1GGE8 Firmware Version : 2.5 Jun,22,2005 p1 Elevation Cutoff Setting : 0 deg Date Installed : 2006-06-22T15:30Z Date Removed : 2007-05-28T14:49Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE4851 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.7 Receiver Type : TPS E_GGD Satellite System : GPS+GLO Serial Number : AGBVRU1GGE8 Firmware Version : 2.6.0 Apr,18,2007 Elevation Cutoff Setting : 0 deg Date Installed : 2007-05-28T14:50Z Date Removed : 2008-01-18T13:59Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE4851 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.8 Receiver Type : TPS E_GGD Satellite System : GPS+GLO Serial Number : AGBVRU1GGE8 Firmware Version : 2.6.1 JAN,10,2008 Elevation Cutoff Setting : 0 deg Date Installed : 2008-01-18T14:00Z Date Removed : 2009-04-30T13:29Z Temperature Stabiliz. : 5 Additional Information : /par/lock/notvis switched to "on". : Additional number LE4851 on the : type level. : The receiver is located in the air : conditioned gravity meter house. 3.9 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355365 Firmware Version : 7.50/3.017 Elevation Cutoff Setting : 0 deg Date Installed : 2009-04-30T13:30Z Date Removed : 2010-01-29T13:29Z Temperature Stabiliz. : 5 Additional Information : 3.10 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355365 Firmware Version : 7.50/3.018 Elevation Cutoff Setting : 0 deg Date Installed : 2010-01-29T13:30Z Date Removed : 2010-02-09T09:09Z Temperature Stabiliz. : 5 Additional Information : 3.11 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355365 Firmware Version : 7.80/3.018 Elevation Cutoff Setting : 0 deg Date Installed : 2010-02-09T09:10Z Date Removed : 2010-10-04T13:04Z Temperature Stabiliz. : 5 Additional Information : 3.12 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355365 Firmware Version : 7.80/3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2010-10-04T13:05Z Date Removed : 2011-04-07T12:44Z Temperature Stabiliz. : 5 Additional Information : 3.13 Receiver Type : LEICA GRX1200GGPRO Satellite System : GPS+GLO Serial Number : 355365 Firmware Version : 8.10/3.019 Elevation Cutoff Setting : 0 deg Date Installed : 2011-04-07T12:45Z Date Removed : 2011-07-19T19:00Z Temperature Stabiliz. : 5 Additional Information : 3.14 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495886 Firmware Version : 8.20/4.007 Elevation Cutoff Setting : 0 deg Date Installed : 2011-07-19T20:30Z Date Removed : 2012-03-07T13:29Z Temperature Stabiliz. : 5 Additional Information : 3.15 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO Serial Number : 495886 Firmware Version : 8.51/6.110 Elevation Cutoff Setting : 0 deg Date Installed : 2012-03-07T13:30Z Date Removed : 2013-05-27T07:00Z Temperature Stabiliz. : 5 Additional Information : 3.16 Receiver Type : LEICA GRX1200+GNSS Satellite System : GPS+GLO+GAL Serial Number : 495886 Firmware Version : 8.71/6.112 Elevation Cutoff Setting : 0 deg Date Installed : 2013-05-27T07:15Z Date Removed : CCYY-MM-DDThh:mmZ Temperature Stabiliz. : 5 Additional Information : 3.x Receiver Type : (A20, from rcvr_ant.tab; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+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 : JPSREGANT_DD_E1 NONE Serial Number : RA0178 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : -00.0125 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 330 deg Antenna Radome Type : NONE Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2002-05-16T12:00Z Date Removed : 2005-05-17T14:30Z Additional Information : The threaded reference pin is penetrating : the antenna by 12.5mm. : Antenna type listed in this section retro- : actively changed from JPSREGANT_DD_E to : JPSREGANT_DD_E1 starting with log file : conz_20121007.log. See IGSMAIL-6662 and : IGSMAIL-6663 for details. 4.2 Antenna Type : TPSCR3_GGD CONE Serial Number : 217 0246 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0574 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : CONE Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2005-05-17T14:30Z Date Removed : 2008-01-18T13:59Z Additional Information : An error was made in the : sitelog conz_20050531.log. : Since 2005-05-17T14:30Z : 000.0556 m was reported. The : colleagues in the Transporatble : Integrated Geodetic Observatory : TIGO did a control survey. : 000.0574 m affirm the truth. 4.3 Antenna Type : TPSCR3_GGD CONE Serial Number : 217-0246 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0574 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : CONE Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2008-01-18T14:00Z Date Removed : 2009-04-30T13:29Z Additional Information : No actual change took place. : Because of the usage of the : NTRIP S05 the antenna identifies : itself with Serial Number 217-0246 4.4 Antenna Type : TPSCR3_GGD CONE Serial Number : 2170246 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0574 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : CONE Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2009-04-30T13:30Z Date Removed : 2009-09-26T12:59Z Additional Information : No actual change took place. : Because of the usage of the : LEICA GRX1200GGPRO the antenna : identifies itself with Serial : Number 2170246 4.5 Antenna Type : TPSCR3_GGD CONE Serial Number : 217 0246 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0574 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : CONE Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2009-09-26T13:00Z Date Removed : 2011-07-19T19:00Z Additional Information : No actual change took place. : Prior 2009-09-26 the LEICA GRX1200GGPRO : could not identify a space character : in the antenna serial number. : Since 2009-09-30 the correct antenna : serial number 217 0246 is identified. 4.6 Antenna Type : LEIAR25.R3 LEIT Serial Number : 10020007 Antenna Reference Point : BPA Marker->ARP Up Ecc. (m) : 000.0574 Marker->ARP North Ecc(m) : 000.0000 Marker->ARP East Ecc(m) : 000.0000 Alignment from True N : 0 deg Antenna Radome Type : LEIT Radome Serial Number : Antenna Cable Type : Nokia Cable M17/75-RG214 Antenna Cable Length : 60 m Date Installed : 2011-07-19T20:30Z Date Removed : CCYY-MM-DDThh:mmZ Additional Information : Antenna and radome calibrated : by Geo+++ GmbH Garbsen, 2010-04-28. 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 : T100 Tied Marker Usage : VLBI Tied Marker CDP Number : 7640 Tied Marker DOMES Number : 41719S001 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : Survey method : Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : 5.2 Tied Marker Name : T200 Tied Marker Usage : SLR Tied Marker CDP Number : 7405 Tied Marker DOMES Number : 41719M001 Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : dy (m) : dz (m) : Accuracy (mm) : Survey method : Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : 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 : Effective Dates : 2002-05-16/2009-04-30 Notes : 6.2 Standard Type : EXTERNAL H-MASER EFOS 24 Input Frequency : 10 MHz Effective Dates : 2009-04-30/2011-07-19 Notes : Use H-Maser for external : input reference oscillator. : H-Maser EFOS 24. 6.3 Standard Type : EXTERNAL H-MASER EFOS 20 Input Frequency : 10 MHz Effective Dates : 2011-07-19/2011-08-16 Notes : Use H-Maser for external : input reference oscillator. : H-Maser EFOS 20. 6.4 Standard Type : INTERNAL Input Frequency : Effective Dates : 2011-08-16/2011-08-19 Notes : 6.5 Standard Type : EXTERNAL H-MASER EFOS 20 Input Frequency : 10 MHz Effective Dates : 2011-08-19/2012-03-07 Notes : Use H-Maser for external : input reference oscillator. : H-Maser EFOS 20. 6.6 Standard Type : INTERNAL Input Frequency : Effective Dates : 2012-03-07/2012-03-13 Notes : 6.7 Standard Type : EXTERNAL H-MASER EFOS 20 Input Frequency : 10 MHz Effective Dates : 2012-03-13/2013-05-27 Notes : Use H-Maser for external : input reference oscillator. : H-Maser EFOS 20. 6.8 Standard Type : INTERNAL Input Frequency : Effective Dates : 2013-05-27/CCYY-MM-DD Notes : 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 : VLBI Status : PERMANENT Effective Dates : 2002-04-23/CCYY-MM-DD Notes : 7.2 Instrumentation Type : SLR Status : MOBILE Effective Dates : 2002-05-01/CCYY-MM-DD Notes : 7.3 Instrumentation Type : PRARE Status : PERMANENT Effective Dates : 2002-06-15/CCYY-MM-DD Notes : 7.4 Instrumentation Type : SEPT POLARX2 GPS+SBAS CONT Status : PERMANENT Effective Dates : 2005-08-17/CCYY-MM-DD Notes : 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 : 809 L 0-100 Manufacturer : Lambrecht Serial Number : Data Sampling Interval : 60 sec Accuracy (% rel h) : 2.5 Aspiration : PERNIX Height Diff to Ant : 10 m Calibration date : (CCYY-MM-DD) Effective Dates : 2002-04-01/CCYY-MM-DD Notes : The humidity sensor is about 10 m below : GPS monument in 50 m distance. 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 : 740-16B DIGIQUARTZ Manufacturer : PAROSCIENTIFIC Serial Number : Data Sampling Interval : 60 sec Accuracy : 0.1 hPa Height Diff to Ant : 15 m Calibration date : (CCYY-MM-DD) Effective Dates : 2002-04-01/CCYY-MM-DD Notes : The pressure sensor is located inside : TIGO-3 and about 15 m below GPS antenna. 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 : 809 L 0-100 Manufacturer : Lambrecht Serial Number : Data Sampling Interval : 60 sec Accuracy : 0.3 deg C Aspiration : PLATINUM PROBE Height Diff to Ant : 10 m Calibration date : Effective Dates : 2002-04-01/CCYY-MM-DD Notes : The temperature sensor is about 10 m below : the GPS-antenna in about 50 m distance. 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 : Tiltmeter inside the GPS-monument 8.5.2 Other Instrumentation : Broadband Seismometer 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 : Universidad de Concepcion Preferred Abbreviation : UdeC Mailing Address : Universidad de Concepcion : Proyecto TIGO : Casilla 4036, Correo 3 : Concepcion : CHILE Primary Contact Contact Name : Hayo Hase Telephone (primary) : +56-41-2207032 Telephone (secondary) : +56-41-2207051 Fax : +56-41-2207031 E-mail : hayo.hase@tigo.cl Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : Additional Information : 12. Responsible Agency (if different from 11.) Agency : Bundesamt für Kartographie : und Geodäsie Preferred Abbreviation : BKG Mailing Address : Bundesamt fuer Kartographie : und Geodeasie : Geodetical Observatory Wettzell : Sackenrieder Str. 25 : D-93444 Bad Koetzting : GERMANY Primary Contact Contact Name : Reiner Dassing Telephone (primary) : ++49-9941-603112 Telephone (secondary) : ++49-9941-603106 Fax : ++49-9941-603222 E-mail : reiner.dassing@bkg.bund.de Secondary Contact Contact Name : Uwe Hessels Telephone (primary) : ++49-9941-603208 Telephone (secondary) : ++49-9941-6030 Fax : ++49-9941-603222 E-mail : uwe.hessels@bkg.bund.de Additional Information : Klaus Roettcher : ++49-9941-603115 : klaus.roettcher@bkg.bund.de : Rudi Stoeger : ++49-9941603117 : ++49-99416030 : ++49-9941603222 : rudolf.stoeger@bkg.bund.de 13. More Information Primary Data Center : BKGI Secondary Data Center : OLG URL for More Information : www.tigo.cl, www.fs.wettzell.de Hardcopy on File Site Map : Site Diagram : Horizon Mask : Monument Description : Site Pictures : Y Additional Information : Antenna Graphics with Dimensions JPSREGANT_DD_E1 From 2002-05-16 until 2005-05-17 +-------------------------+ <--------------Plastic Housing for / ------------------- \ Antenna/Choke Ring / / + \ \ <-- 0.1186 L2 +---------+ | + | +---------+ <-- 0.1131 L1 | +-------------------------------------------------+ | <-- 0.xxxx TCR / | | \ | | | | | | | | | | | | \+-----------------------------------------------------+/ |+-----------------------------------------------------+| <-- 0.xxxx BCR \______________ | | ______________/ \ | | / \+---------x---------+/ <-- 0.0000 BPA=ARP TPSCR3_GGD From 2005-05-17 until 2011-07-19 --------- / + \ <-- 0.104 L2 | + | <-- 0.081 L1 +--------------------------------------------------+ <-- 0.071 TCR | | | | | | | | +-----------------+-------------+------------------+ <-- 0.003 BCR +-----x-----+ <-- 0.000 BPA=ARP <-- 0.326 --> LEIAR25.R3 from 2011-07-19 +-------+ <-- 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