EBRE00ESP 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) : ICGC Geodesy Team ([email protected])
Date Prepared : 2024-07-17
Report Type : UPDATE
If Update:
Previous Site Log : ebre00esp_20240529.log
Modified/Added Sections : 1, 3.18, 3.19
1. Site Identification of the GNSS Monument
Site Name : Ebre
Nine Character ID : EBRE00ESP
Monument Inscription :
IERS DOMES Number : 13410M001
CDP Number : (A4)
Monument Description : REINFORCED CONCRETE PILLAR
Height of the Monument : 4.2 m
Monument Foundation : REINFORCED CONCRETE BLOCK AND DRILLED STEEL RODS
Foundation Depth : 2 m
Marker Description : stainless steel plate with 5/8' thread
Date Installed : 1992-03-23
Geologic Characteristic : CALCAREOUS CRUST AND CONGLOMERATE
Bedrock Type : SEDIMENTARY
Bedrock Condition : FRESH
Fracture Spacing : (0 cm/1-10 cm/11-50 cm/51-200 cm/over 200 cm)
Fault zones nearby : NO
Distance/activity : (multiple lines)
Additional Information : Quaternary terrace, Pleistocene age.
: dedicated surge protections
: provided with VSAT Star Network (real-time
: data flow).
: The monument foundation has two parts. One is a
: reinforced concrete block (1 m) and the other
: are drilled steel rods (1 m).
2. Site Location Information
City or Town : Roquetes
State or Province : Tarragona
Country or Region : ESP
Tectonic Plate : EURASIAN
Approximate Position (ITRF)
X coordinate (m) : 4833520.000
Y coordinate (m) : 41536.000
Z coordinate (m) : 4147461.000
Latitude (N is +) : +404915.19
Longitude (E is +) : +0002932.46
Elevation (m,ellips.) : 107.3
Additional Information : the site is placed in an astronomic
: observatory, Observatori de l'Ebre
3. GNSS Receiver Information
3.1 Receiver Type : TRIMBLE 4000SSE
Satellite System : GPS
Serial Number : 3312A02805
Firmware Version : 6.01
Elevation Cutoff Setting : 10 deg
Date Installed : 1994-05-23
Date Removed : 1997-04-15T10:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : (multiple lines)
3.2 Receiver Type : TRIMBLE 4000SSI
Satellite System : GPS
Serial Number : 17999
Firmware Version : 7.29 / 3.07
Elevation Cutoff Setting : 5 deg
Date Installed : 1997-04-15T10:13Z
Date Removed : 2005-11-16T13:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : (multiple lines)
3.3 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 41644
Firmware Version : 1.13
Elevation Cutoff Setting : 5 deg
Date Installed : 2005-11-16T13:00Z
Date Removed : 2008-05-26T14:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : (multiple lines)
3.4 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4536257134
Firmware Version : 1.15
Elevation Cutoff Setting : 5 deg
Date Installed : 2008-05-26T15:00Z
Date Removed : 2010-07-13T15:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : (multiple lines)
3.5 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4536257134
Firmware Version : 1.15
Elevation Cutoff Setting : 5 deg
Date Installed : 2010-07-13T15:00Z
Date Removed : 2013-07-19T13:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
3.6 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4536257134
Firmware Version : 1.15
Elevation Cutoff Setting : 0 deg
Date Installed : 2013-07-19T13:00Z
Date Removed : 2014-09-08T07:47Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
3.7 Receiver Type : TRIMBLE NETRS
Satellite System : GPS
Serial Number : 4536257134
Firmware Version : 1.15
Elevation Cutoff Setting : 0 deg
Date Installed : 2014-09-08T07:47Z
Date Removed : 2014-12-09T12:44Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
: Disabled the Everest Multipath Reduction
: technology
3.8 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 5201K41189
Firmware Version : 4.81
Elevation Cutoff Setting : 0 deg
Date Installed : 2014-12-09T13:16Z
Date Removed : 2015-06-25T08:02Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
: Disabled the Everest Multipath Reduction
: technology
3.9 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 5201K41189
Firmware Version : 5.01
Elevation Cutoff Setting : 0 deg
Date Installed : 2015-06-25T08:02Z
Date Removed : 2015-07-09T07:00Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
: Disabled the Everest Multipath Reduction
: technology
3.10 Receiver Type : TRIMBLE NETR9
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 5201K41189
Firmware Version : 5.03
Elevation Cutoff Setting : 0 deg
Date Installed : 2015-07-09T07:00Z
Date Removed : 2016-12-14T09:58Z
Temperature Stabiliz. : 22.0 +/- 2.0
Additional Information : Set tracking of unhealthy satellite
: Disabled the Everest Multipath Reduction
: technology
3.11 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 1831701
Firmware Version : 4.02/7.002
Elevation Cutoff Setting : 0 deg
Date Installed : 2016-12-14T11:07Z
Date Removed : 2017-03-30T10:26Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.12 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS+SBAS
Serial Number : 1831701
Firmware Version : 4.11/7.102
Elevation Cutoff Setting : 0 deg
Date Installed : 2017-03-30T10:31Z
Date Removed : 2017-06-08T07:30Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.13 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.11/7.102
Elevation Cutoff Setting : 0 deg
Date Installed : 2017-06-08T07:31Z
Date Removed : 2018-05-31T12:53Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.14 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.20/7.300
Elevation Cutoff Setting : 0 deg
Date Installed : 2018-05-31T12:58Z
Date Removed : 2019-04-05T10:18Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.15 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.31/7.403
Elevation Cutoff Setting : 0 deg
Date Installed : 2019-04-05T10:22Z
Date Removed : 2022-12-14T13:52Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.16 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.61/7.811
Elevation Cutoff Setting : 0 deg
Date Installed : 2022-12-14T14:12Z
Date Removed : 2023-11-13T08:15Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.17 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.70/7.813
Elevation Cutoff Setting : 0 deg
Date Installed : 2023-11-13T08:15Z
Date Removed : 2024-05-29T11:10Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.18 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1870305
Firmware Version : 4.80/7.900
Elevation Cutoff Setting : 0 deg
Date Installed : 2024-05-29T11:15Z
Date Removed : 2024-07-17T08:38Z
Temperature Stabiliz. : (deg C) +/- (deg C)
Additional Information : (multiple lines)
3.19 Receiver Type : LEICA GR50
Satellite System : GPS+GLO+GAL+BDS
Serial Number : 1831701
Firmware Version : 4.80/7.900
Elevation Cutoff Setting : 0 deg
Date Installed : 2024-07-17T08:40Z
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 : TRM14532.00 NONE
Serial Number : 00080026539
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0540
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : RG58
Antenna Cable Length : 15 m
Date Installed : 1994-02-04
Date Removed : 1995-02-28
Additional Information : (multiple lines)
4.2 Antenna Type : MPLL1/L2_SURV NONE
Serial Number : 90LL12300
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0540
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : RG58
Antenna Cable Length : 15 m
Date Installed : 1995-02-28T10:57Z
Date Removed : 1997-04-15T10:00Z
Additional Information : (multiple lines)
4.3 Antenna Type : TRM29659.00 NONE
Serial Number : 0220071796
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 : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : RG214
Antenna Cable Length : 12 m
Date Installed : 1997-04-15T10:13Z
Date Removed : 2013-07-05T08:40Z
Additional Information : EMP Protector-Surge Arrestor installed
: between RG214 antenna cable and 1.5m pigtail
: antenna cable
: model: Huber Suhner 3402.17.K with capsule
: 73 Z-0-0-48
4.4 Antenna Type : TRM29659.00 NONE
Serial Number : 0220071796
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 : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : LMR400 + RG13
Antenna Cable Length : 11.5 m
Date Installed : 2013-07-05T10:20Z
Date Removed : 2014-12-09T12:44Z
Additional Information : EMP Protector-Surge Arrestor installed
: between LMR400 antenna cable and 1.5m pigtail
: antenna cable (RG13)
: model: Huber Suhner 3402.17.K with capsule
: 73 Z-0-0-48
: The lenght of LMR400 cable is 10m (aprox) and
: the lenght of RG13 cable is 1.5m (aprox)
4.5 Antenna Type : TRM57971.00 NONE
Serial Number : 1440925503
Antenna Reference Point : BAM
Marker->ARP Up Ecc. (m) : 0.0770
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : LMR400 + RG13
Antenna Cable Length : 11.5 m
Date Installed : 2014-12-09T13:14Z
Date Removed : 2016-12-14T09:58Z
Additional Information : EMP Protector-Surge Arrestor installed
: between LMR400 antenna cable and 1.5m pigtail
: antenna cable (RG13)
: model: Huber Suhner 3402.17.K with capsule
: 73 Z-0-0-48
: The lenght of LMR400 cable is 10m (aprox) and
: the lenght of RG13 cable is 1.5m (aprox)
: SECO (2072-33) antenna mount
: Individual absolute calibration is available in
: ftp://geofons.icc.cat/calibracions_antenes/
4.6 Antenna Type : LEIAR25.R4 NONE
Serial Number : 726359
Antenna Reference Point : BPA
Marker->ARP Up Ecc. (m) : 0.0770
Marker->ARP North Ecc(m) : 0.0000
Marker->ARP East Ecc(m) : 0.0000
Alignment from True N : 0 deg
Antenna Radome Type : NONE
Radome Serial Number :
Antenna Cable Type : LMR400 + RG13
Antenna Cable Length : 11.5 m
Date Installed : 2016-12-14T11:07Z
Date Removed : CCYY-MM-DDThh:mmZ
Additional Information : Individual absolute calibration is available in
: ftp://geofons.icc.cat/calibracions_antenes/
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 : 1994-05-23/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 : IONOSPHERE SOUNDER
Status : PERMANENT
Effective Dates : 1994-05-23/CCYY-MM-DD
Notes : DIGISONDE DGS-256 (Univ. Lowell, USA)
7.2 Instrumentation Type : SEISMOGRAPH
Status : PERMANENT
Effective Dates : 1994-05-23/CCYY-MM-DD
Notes : sets of seismographs for the 3 components
: (NS, EW, vertical), and for short and long
: period, WWSS-BENIOFF, STS-2+QUANTERRA
: Q680-LV.
7.3 Instrumentation Type : MAGNETOMETER
Status : PERMANENT
Effective Dates : 1994-05-23/CCYY-MM-DD
Notes : ARGO (BGS),Di-flux (ELSEC810+ZEISS010B),protons
: magnetometer (ELSEC820)
7.4 Instrumentation Type : TELESCOPE
Status : PERMANENT
Effective Dates : 1994-05-23/CCYY-MM-DD
Notes : equatorial telescope for sun observation,15cm
: ZEISS
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 : Institut Cartografic i Geologic de Catalunya
: Geodesy
Preferred Abbreviation : ICGC
Mailing Address : Parc de Montjuic
: E-08038 Barcelona
: Spain
Primary Contact
Contact Name : ICGC Geodesy Team
Telephone (primary) : +34 935 67 15 00
Telephone (secondary) :
Fax :
E-mail : [email protected]
Secondary Contact
Contact Name :
Telephone (primary) :
Telephone (secondary) :
Fax :
E-mail :
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 : http://www.icgc.cat/gnss
Hardcopy on File
Site Map : (Y or URL)
Site Diagram : Y
Horizon Mask : Y
Monument Description : Y
Site Pictures : Y
Additional Information : other data available (i.e. hourly 1Hz) at
: anonymous ftp://geofons.icgc.cat/
Antenna Graphics with Dimensions
ANTENNA CONFIGURATION ON SITE SINCE 2016-12-14:
LEIAR25.R4
+-------+ <-- 0.1995
/ \
+---+-------------+---+ <-- 0.1606 TCR
| |
|---------------------------|
|---------------------------------|
|---------------------------------------|
+---------------------------------------------+
| |
| |
+-+---------------------------------------------+-+
+-----------------+-------------+-----------------+ <-- 0.0320 BCR
| |
| |
+------x------+ <--+ 0.0000 BPA=ARP
| | |(5/8' thread
might
| Mount | | differ from BPA!)
| +-+ | 0.077 NOM=NRP
Monument => +-------+=====|x|=====+------+ <--+
<-- 0.3802 -->
Ref. Point +-----+--------|-----------------------+-------+
| Steel plate |
| |
| |
| STEEL MAST |
| |
| |
| |
ANTENNA CONFIGURATION ON SITE SINCE 2014-12-09:
TRM57971.00
/ --------------------------------------------- \ <-- 0.06673 L1
+ + <-- 0.05769 L2
\ --------------------------------------------- /
\ /
\ /
\-----+-----/ <-- 0.0000 BAM
<-- 0.3396 -> Notches
+===========+ <--+
| | |
| Mount | 0.077 m
| +-+ | |
Monument => +====|x|====+ <--+ ARP
Ref. Point +-----+---------|--------+-------+
| Steel plate |
| |
| |
| Concrete pillar |
| |
| |
| |
ARP: Antenna Reference Point
ANTENNA CONFIGURATION ON SITE SINCE 15-APR-97:
TRM29659.00
<-- 0.381 -->
-----
/ + \ <-- 0.128 L2
| + | <-- 0.110 L1
+--------------------------------------------------+ <-- 0.102 TCR
| |
| |
| |
| |
+-+--------------------------------------------------+-+ <-- 0.038
+-------------------+-------------+--------------------+ <-- 0.035 BCR
| |
| |
| |
Monument > +---------+-----|x|-----+--------+ <-- 0.000 BPA
Ref. Point +-----+--------|-----------------------+-------+
| Steel plate |
| |
| |
| Concrete pillar |
| |
| |
| |
OTHER ANTENNA
Micro Pulse L1/L2
---
/ + \ <-----------+ 0.087 L2
| + | <---------+ | 0.072 L1
+----------------------------------------------+ | |
| | | |
| | | |
| | | |
| | | |
ARP=BPA --> -----------------+----| |----+------------------ <-+--+
| | |
| Mount | |
| | 0.054 m
| +-+ |
Monument -> +----------+----| |----+---------+ <-+
Ref. Point +-----+--------|-----------------------+-------+
| Steel plate |
| |
| |
| Concrete pillar |
| |
| |
| |
Type: TRIMBLE 4000ST L1/L2 GEOD
----+---- <-- 0.070 L1
/ + \ <-- 0.068 L2
++----------------+-----------------+-----------------++ <-- 0.063
++----------------+-----------------+-----------------++ TGP
++---------------+-------------------+----------------++ <-- 0.060
++---------------+-------------------+----------------++ BGP
| |
| |
| |
+------x------+ <-- 0.0 ARP=BPA
<-- 0.140 --> BPA
<-- 0.155 --> TPA
<-- 0.467 --> NOTCHES
<-- 0.483 --> EDGE
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
