SR20 GPS Receiver
Discontinued
The SR20 single frequency survey system performs high accuracy static and kinematic data collection for the land surveyor.
The Leica SR20 is capable of centimeter accurate post-processed solutions, as well as sub-meter real-time Satellite Based Augmentation System (SBAS) solutions, such as WAAS and EGNOS.
Built with an intuitive survey workflow that is both easy to learn and use, the SR20 offers the maximum in flexibility out of a GPS receiver.
All of this coupled with the powerful Leica GPS technology makes this low-cost GPS receiver a great package.
Key Features
- Powerful GPS engine that yields centimeter accurate results.
- Flexible system to support a wide variety of Land Surveying and GIS requirements.
- Surveying applications including COGO and coordinate transformations.
- Leica Geo Office Software for powerful post-processing.
Functionality
Designed for the Land Surveyor looking for a flexible GPS receiver at a low price,
the SR20 combines a simple interface and rugged GPS receiver with the power to perform a variety of land surveying tasks.
In addition to accurate performance, the Leica SR20 features a high-resolution display you can use in all light conditions,
a mobile phone styled keyboard for intuitive data entry and removable, rechargeable batteries so it can work as long as you do.
This system comes standard with a rugged, high accuracy antenna that is capable of tracking extremely well in difficult GPS conditions.
The SR20 is bundled in one and two receiver packages.
These bundles include all accessories including Leica Geo Office L1 Phase Post Processing, which includes options to upgrade to network adjustment and to datum and map modules.
Flexibility
The entire system is flexible.
The SR20 can be set up as a reference station, a static receiver, a kinematic data collector, a GIS data collector and a navigator to locate monuments.
Featuring a variety of different applications to meet specific job requirements, the SR20 is maximized for optimal results in almost any environment.
Leica Geo Office
Leica Geo Office software comes standard with the SR20 system.
This is the most powerful GPS processing software package in the industry today.
This software can be upgraded to process the System 1200 dual frequency data.
Leica Geo Office provides everything needed for managing, visualizing, processing, importing and exporting GPS, TPS and level data.
Optional software features include the ability to perform a full least squares adjustment and coordinate transformations.
Low Cost, Leica Quality
The LEICA SR20 system delivers high performance for a fraction of the cost of more expensive GPS systems.
The competitive price of the system means even the budget-conscious user can now purchase a Leica GPS instrument for surveying.
Features and Specifications
| SR20 Technical Specifications |
| Size | 21.5cm L x 9cm W x 5cm D: 8.46" x 3.54" x 1.97" |
| Weight | (With Battery) 0.652kg or 1lb 7oz |
| Power | 2.1 Watt (typical) at 20°C, 7.2V internal, 12V external |
| Receiver | 12 channel parallel automatic selection. L1 Code / Phase |
| Antenna | Internal: Leica AT575 microstrip, built-in groundplane
External: Leica AT501 microstrip, built-in groundplane |
| Casing | Sealed polycarbonite housing; protection against wind driven rain and dust.
Sealed battery compartment and sealed compact flash. IP54 Rating |
| Processor | 240MHz RISC floating point processor |
| Display | 240 x 240 pixel graphical LCD, 16 grayscale with backlight |
| Internal Radio | Bluetooth®** |
| Keypad | Front: Metal dome with high tactile feedback, protected on/off
Side: Duplicate up, down and enter keys |
| Memory | ATA compact flash: Standard 32MB; Max 2GB |
| Data Transfer | RS232 Lemo, ATA compact flash |
| Internal Ports | RS232 Serial: 7 pin Lemo; Antenna Coaxial Lemo |
| Operating Temperature | -20°C to 55°C / -4°F to 122°F |
| Storage Temperature | -40°C to 75°C / -40°F to 167°F |
| Humidity | 99% non-condensing |
| Shock | 1.2m drop |
| Baseline rms (Post-processing)* | L1 Code only: Typically 30cm (rms)
L1 Code and Phase typically 5 to 10mm + 2ppm (rms) |
| DGPS/RTCM | RTCM version 2.1 (9,2 & 1,2)
Optional support for Coast Guard Beacon differential correction |
| Baseline rms (DGPS/RTCM)* | L1 Code only: Typically 40cm (rms) |
| Data Recording Rate and Capacity | At 1Hz measurement; 1 hour runtime = 2MB, 16 hours continuous measurement per 32MB standard compact flash |
| Desktop Software | Leica Geo Office; L1 Code and Phase Post-Processing, ASCII export, import and export to dwg, dxf, dgn and mif |
| Application | Data Collection, Data Management, Stakeout, COGO |
| Battery | Lithium-Ion 7.2 Volt 2100mAH w/microprocessor |
| Charger | Battery charger |
* Baseline rms refers to accuracy in position. Accuracy in height is 2x accuracy in position. Figures are for normal to favorable conditions.
** Bluetooth® is a trademark owned by Bluetooth SIG, Inc.
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