Leica GPS Surveying 500 Series
| Introduction | |
|---|---|
| Receiver type | Dual-frequency, geodetic,real-time RTK receiver |
| Summary of measuring modes and applications | Static, rapid static, kinematic On the fly L1 + L2, code, phase Real-time RTK standard Post processing DGPS/RTCM standard Survey, geodetic and real-time RTK applications |
| Receiver specifications | |
| Receiver technology | ClearTrak - patented. Multibit,SAW filters. Fast acquisition. Strong signal. Low noise. Excellent tracking, even to low satellites and in adverse conditions. Interference resistant. Multipath mitigation. |
| No. of channels | 12 L1 + 12 L2 |
| L1 measurements | Carrier phase full wave
length C/A narrow code Precision code |
| L2 measurements | Carrier phase full wave length with AS off or on
P2 code / P-code aided under AS Equal performance with AS off or on |
| Independent measurements | Fully independent L1 and L2 code and phase measurements |
| Time to first phase measurement after switch ON | TypicallY 30 secs |
| LED status indicators | 3: for power, tracking, recording |
| Ports | 3 RS232/power ports 1 RS232 only port 1 Power only port 1 TNC port for antenna 1 PPS, 2 Event port optional |
| Supply voltage Power consumption |
Nominal 12V DC 7W, receiver With terminal |
| Dimensions: L x B x Ht Weight, receiver only |
205mm x 165mm x 72mm 1.25kg |
| Antennas | |
| Standard survey antenna Dimensions:diameter x ht Weight |
AT502, L1/L2 microstrip Built-in groundplane 160mm x 50mm 0.40kg |
| Standard choke-ring antenna Dimensions:diameter x ht Weight |
AT503 choke-ring, L1/L2 microstrip. Optional radome 300mm x 75mm (antenna) 2.45kg (antenna) |
| Special choke-ring antenna Dimensions:diameter x ht Weight |
AT504 choke-ring, L1 /L2 microstrip. Dorne Margolin, 380mm x 130mm (antenna) 4.3kg (antenna) |
| Measurement precision with AS off or on | |
| Carrier phase on L1 Carrier phase on L2 Code (pseudorange) on L1 Code (pseudorange) on L2 |
0.2mm rms 0.2mm rms 5cm rms 5cm rms |
| Accuracy, baseline rms | Accuracy in position = baseline rms. Accuracy in height = 2 x accuracy in position |
| Baseline rms with post processing | With SKI-Pro L1/L2 software |
| Static (phase), long lines, long observations, choke-ring antenna | 3mm + 0.5ppm |
| Static and rapid rapid static (phase) with standard antenna | 5mm + 0.5ppm (rms) |
| Kinematic (phase), in moving mode after initialization | 10mm + 1ppm (rms) |
| Code only | Typically 25 cm (rms) |
| Baseline rms with real-time/RTK | Real-time/RTK standard |
| Rapid static (phase), Static mode after initialization | 5mm + 0.5ppm (rms) |
| Kinematic (phase), moving mode after initialization | 10mm + 1ppm (rms) |
| Code only | Typically 25cm (rms) |
| Baseline rms with DGPS/RTCM | DGPS/RTCM standard |
| DGPS/RTCM | Typically 25cm (rms) |
| On-the-fly initialization | Real time and post processing |
| Reliability of OTF initialization | Better than 99.99% |
| Time for OTF (on-the fly) initialization | Real time: Typically 10sec with 5 or more satellites on L1 and L2 Post processing: Typically 40 seconds with 5 or more satellites on L1 and L2 |
| Range for OTF (on-the fly) initialization | Typically up to 20 km in normal conditions with standard radio. Up to 30km in favourable conditions with powerful radio. |
| Note on accuracies and time | Baseline rms, accuracy in position and accuracy in height are dependent upon various factors including number of satellites, geometry, observation time, ephemeris accuracy, ionospheric conditions, multipath etc. Figures quoted assume normal to favourable conditions. Times can also not be quoted exactly. Time required are dependent upon various factors including number of satellites, geometry, ionospheric conditions, multipath etc |
| Navigation position | 5-10m rms for each coordinate degradation possible due to SA |
| Position update and latency | RTK and DGPS standard |
| Position update rate Position latency |
Selectable: 0.1 sec (10Hz) to 60sec 0.03 sec or less |
| Real-time RTK and DGPS/RTCM | Real-time RTK standard DGPS/RTCM standard |
| RTK and RTCM formats for transmission and reception | Leica proprietary format. CMR, RTCM V2.1 and v2.2 formats, messages 1,2,3,9,18,19,20,21,22. (message 9, input only). |
