| Brand |
Leica Geosystems |
| Model name/ Type |
Leica GRX1200+ GNSS Reference Station Receiver |
| Year of introduction |
2008/12 |
| Class (GPS, Glonass, Galileo/ S, D en T) |
(GPS/GLONASS/Galileo, Compass**) |
| Dimensions (h*d*w* in cm): base station case/ rover set case |
21.2*16.6*7.9 |
| What type of material is used for the housing |
Magnesium Alloy, Compliance with ISO9022-10-08,
ISO9022-11-special and MIL-STD-810F Method 502.4-II,
MIL-STD-810F Method 501.4-II, IP67 |
| Static [mm + pmm] |
Post-processing (static and rapid static)=5mm+0.5ppm, post-processing kinematic=10+1ppm (horizontal accuracies) |
| RTK [mm + ppm], maximum baseline length (m) |
NA |
| Signal(s) tracked (types / bands / codes) |
Fully independent L1 and L2 code and phase measurements. GPS: 16 L1 + 16 L2 + 16 L5. (L1 Carrier phase full wavelength, C/A narrow code) (L2 Carrier phase full wavelength with C-code and P-Code [AS off] or P-code aided under AS. Equal performance with AS on or off). GLONASS: 12 L1 + 12 L2. (L1 Carrier phase full wavelength, C/A narrow code) (L2 Carrier phase full wavelength, P narrow code). SBAS : WAAS / EGNOS / MSAS / GAGAN. Designed to support GPS L5 and Galileo E1/E5a/E5b and Alt-BOC. |
| Single/dual/triple frequency |
Triple |
| Number of channels / tracking mode |
120 / SmartTrack+ |
| Max. no. of satellites tracked parallel (GPS/Glonass/Galileo/Other) |
up to 60 |
| Time to first fix (C/W/R) [sec/sec/sec] |
typically 60s/30s/1s |
| Can the receiver perform RTK surveys (Y / N), Time to first fix (sec) |
DGPS (SBAS) |
| RTK initialisation (s/d) [sec] |
NA |
| PPS (Puls per second) |
Yes optional |
| Update rate of position (frequency) [Hz] |
20 Hz |
| Supported RTCM version |
RTCM 2.x and 3.0 / 3.1 |
| RTK Network Compatibility |
Yes |
| MRS (Mobile Reference Station) functionality |
Yes |
| Possible types of messages |
2.x with 1,2,3,9,18,19,20,21,22,23,24. 3.x with 1001 to 1012, 1014 to 1016, 1019 to 1020 |
| Id. proprietary format |
Leica, Leica 4G, CMR, CMR+ |
| Antenna (integr. and / or ext.) |
External |
| Rover (r/rd/rdm) [V – W/W/W] |
12V nominal, range 10.5-28V - 3.8/ 3.8 / 3.8 |
| Base (b/bm) [V – W/W] |
12V nominal, range 10.5-28V - 3.8/ 3.8 |
| Operating time wo/w radio (h) [hrs/hrs] |
8hrs without radio, 5 hours with radio |
| Use of cellular phone for the datalink/ Protocol |
Supported in housing: Siemens MC75, CDMA MultiTech. Supported without housing: Any suitable phone |
| Supported GSM protocols, ISDN, GPRS, UMTS |
ISDN, GPRS, EDGE, CDMA, TDMA, UMTS |
| I/O-ports (number and type of plug) |
4*RS232 (8-pin LEMO) |
| Remote managing receiver |
Yes: Modem and serial |
| Options remote |
Configure, status, download data, update firmware |
| Special remote software needed? |
Yes: Leica Geo Office or Leica GNSS Spider Software or Web Interface |
| Integrity warnings (warning at failure datalink, loss of lock i.e. (Y/N) |
Yes: All events trigger message warnings. Icons permanently show most important status information |
| Base antenna phase centre stability (*1) |
Sub mm |
| Rover antenna phase centre stability (*1) |
Sub mm |
| ROHS compliance |
Yes |
| WEEE compliance |
Yes |
| Data storage on receiver |
Yes - removable CF card |
| Storage medium (type) / memory [MB] |
CF card 256MB or 1GB |
| Exchangeable / fixed |
Removable |
| Display; size (lines and char. / line) |
Yes - 1/4 VGA screen 11 lines, 32 characters per line |
