Antenna
Dual Constellation for Enhanced Positioning
--The GPS-702-GG uses the L1 and L2 frequencies
--Antenna offers combined GPS+ GLONASS signal reception
--Customers can use the same antenna for GPS-only or dual constellation applications, resulting in increased flexibility and reduced equipment costs.
--Patented Pinwheel™ technology provides superior multipath rejection in a compact and lightweight antenna
Stable Phase Center
--For added reliability, the antenna's phase center remains constant as the azimuth and elevation angle of satellites change with signal reception unaffected by the rotation of the antenna or satellite elevation.
--In addition, the phase cetner is in the same location for both the L1 and L2 signals
--This, combined with minimal phase center variation between individual antennas, makes the GPS-702-GG ideal for baselines of any length
Durable, RoHS Compliant Design
--In addition, the 702-GG meets the European Union's directive for Restriction of Hazardous Substances (RoHS)
--For extended life, the GPS-702-GG also features a waterproof housing and meets MIL-STD-202F for vibration and MIL-STD-810F for salt spray
GPS Performance:
14GPS L1, 14 GPS L2
12 GLONASS L1, 12 GLONASS L2
2 SBAs Channel Configuration
| Horizontal Position Accuracy |
(RMS) |
| Single Point L1 |
1.5 m |
| Single Point L1/L2 |
1.2 m |
| SBAS |
0.6 m |
| DGPS |
0.4 m |
| RT-2 |
1 cm + 1 ppm |
Measurement Precision (RMS)
| |
GPS |
GLO |
| L1 C/A Code |
4 cm |
15 cm |
| L1 Carrier Phase |
0.5 mm |
1.5 mm |
| L2 P(Y) Code |
8 cm |
8 cm |
| L2 Carrier Phase |
1 mm |
1.5 mm |
Data Rate
| Measurements |
5Hz |
| Position |
5Hz |
Time to First Fix
| Cold Start (3) |
60 s |
| Hot Start (4) |
35 s |
Signal Reacquistion
| L1 |
0.5 s (typical) |
| L2 |
1.0 s (typical |
| Velocity Accuracy |
0.03 m/s RMS |
1 Typical Values. Performanc specifications subject to GPS system characteristics, US DOD operational degradation, ionospheric and troposhperic conditions, satellite geometry, baseline length, multipath effects and the presence of intentional or unintentional interference sources.
2 GPS only.
3 Typical value. No almanac or ephemerides and no approximate position or time.
4 Typical value. Almanac and recent ephemerides saved and approximate position and time entered
