Bluetooth gps with sbas

Bluetooth GNSS Receiver Utilising GPS and GLONASS with SBAS

The SXBlue II GNSS from Geneq, Canada, is a GNSS receiver that uses both GPS and GLONASS with SBAS (WAAS/ EGNOS/ MSAS/ GAGAN) to attain 30cm/1ft (RMS) accuracy in real-time using free SBAS corrections. It connects through Bluetooth to any smartphone, handheld, tablet computer or notebook computer.

For years, the SXBlue GPS product line has lead the market in squeezing the most out of SBAS for high-precision mapping and surveying users. New technology used in the SXBlue II GNSS allows it to utilize both GPS and GLONASS with SBAS, enabling it to track and use nearly twice as many satellites compared to typical SBAS receiver technology. Product engineer Jean-Yves Lauture addts that more satellites means more accurate positioning in tougher environments, such as under tree canopy and near buildings. GLONASS with SBAS provides according to him impressive accuracy and tracking results.

The SXBlue II GNSS builds on the success of the proven SXBlue II GPS that was designed to optimise SBAS performance under tree canopy and in rugged terrain. With the ability to track 55 satellites (31 operational GPS, 24 operational GLONASS), the SXBlue II GNSS uses between 12 and 19 satellites in view at any time, providing superior performance when working under and around tree canopy, buildings and rugged terrain.

The next-generation SXBlue II GNSS is the same, small, palm-sized unit as the SXBlue II GPS and utilises a small 2.7” diameter GNSS antenna. The unit is waterproof (submersible), dustproof and ruggedised, with an IP-67 rating. Its Class-1 long-range Bluetooth 2.0 has a typical range of 250 metres. The internal, rechargeable, field replaceable Li-Ion battery has on-board LEDs let the user know how much battery life is left. The operating temperature range of the SXBlue II GNSS is -40°C (-40°F) to 85°C (185°F).

In addition to the built-in long-range Bluetooth transceiver, the SXBlue II GNSS also has a standard DE-9 RS-232 port and a USB Type B port whose outputs are fully programmable up to 10Hz standard, and a 20Hz option. Other optional features are L1 RTK for

There is no need for post-processing or other sources of differential corrections as the SXBlue II GNSS uses WAAS (North America), EGNOS (Europe), MSAS (Japan) and GAGAN (India) satellite corrections. Users receive real-time, 30cm/1 foot positioning all day long.

Geneq is showing the SXBlue II GNSS at the Esri International User Conference, taking place from 24 to 26 July 2012 in San Diego, California, booth #1203.

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GNSS Surveyor

Bluetooth GNSS Receiver & Datalogger with Barometric Sensor

The Bad Elf GNSS Surveyor delivers ~1-meter positioning out of the box to the iPad for use in GIS, mapping, agriculture, and survey activities. The GNSS Surveyor can record raw data and produce RINEX through the Bad Elf application for your post-processing needs.

Mapping-Grade GPS, Powered by Bad Elf

The GNSS Surveyor is the most affordable 1 meter GNSS receiver available on the market today, and it works with a variety of GIS apps. Looking to learn more about use in GIS, see our GIS Resources for detailed infromation and advanced usage.

App Support

The GNSS Surveyor works out of the box with all location services aware iOS apps, but apps that integrate the Bad Elf SDK can access the advanced data and features available for sub-meter accuracy. Bad Elf has begun working with several developers to support the GNSS Surveyor directly. If you have an app and would like to support the GNSS Surveyor, please contact support today.

Affordable & Simple to Use.

At Bad Elf, we strive to create high quality, dependable products consistent with Apple’s philosophy of «It just works!» Just turn on your Bad Elf GNSS Receiver and get to work. No complicated setup. Extra long battery life. No hassles.

Great Products. World-Class Service.

Need assistance? Bad Elf works hard to provide world-class customer service. If you have questions or concerns, please ask us. We stand behind our products and want you to be a delighted customer.

GIS/Mapping Features

• Stationary high precision GNSS as low as 1m out of the box with PPP in regions with SBAS coverage
• Post-processing support via RINEX conversion available in the Bad Elf app
• Differential GPS (DGPS) supported using Internet delivered RTCM 2.3 via built-in NTRIP client.
• 56 channel receiver supports GPS (US) and QZSS (Japan) constellations with SBAS (WAAS/EGNOS/MSAS), or GLONASS (Russia)
• Obtain altitude from GPS or from the built-in barometer, which can be calibrated to a known altitude or pressure
• No internet connection or monthly subscription required

Receiver Features

• Sample rate configurable to 10Hz
• View GPS or GLONASS status quickly with the backlit LCD
• All day battery life allows you to track for up to 35 hours (24 hours when streaming over Bluetooth)
• Access data logs directly from any PC or Mac using the included USB cable. GPS appears just like a USB thumb drive
• USB connectivity to PC or Mac provides streaming data, raw or NMEA
• Quickly acquires satellite lock without cell tower assistance. Hot start time
  as quick as 1 second
• IPX4 splash resistance makes this device ready for outdoors.

Part Number

GPS Specifications

| Accuracy (stationary) ~1 meter with SBAS+PPP 1 Accuracy (kinematic) 2.5 meters Update Rate 1-10 hZ Lock Time Typically less than 45 seconds Receiver 56-channel u-blox7 engine 2 — GPS L1 C/A, GLONASS L1 FDMA, QZSS L1 C/A SBAS WAAS, EGNOS, MSAS NMEA GGA, GSA, GSV, GST, RMC DGPS RTCM 2.3 code correction support Storage 200+ hour datalogger memory

Compatibility

| Platforms iOS, Android, Windows Mobile App The Bad Elf GPS App requires iOS 8.0+ Connectivity Bluetooth SPP, USB Serial

Operating Specifications

| Battery Powered 14°F to 140°F (-10°C to 60°C) Externally Powered -22°F to 140°F (-30°C to 60°C) Charging Temp 41°F to 113°F (5°C to 45°C) Storage Temp -22°F to 140°F (-30°C to 60°C)

Product Specifications

| USB Port Mini-USB port for charging and ElfPort expansion Altimeter Internal Barometer (accuracy ~1 meter) Display 128×96 dot LCD screen with backlight Firmware Field upgradeable via iOS app or via USB Dimensions 3″ x 2.4″ x 0.7″ (76.5mm x 61.5mm x 17.5mm) Weight 3.2 oz (90 grams)

Package Contents

| Package Contents BE-GPS-3300 GNSS Surveyor ascessory
3ft (90cm) Mini-USB cable for charging
12-24V DC vehicle USB charger
Detachable Neck Lanyard
User’s Manual (downloadable PDF here)

1 In ideal conditiions, unobstructed view, with SBAS lock, device allowed to settle for at least 2 minutes
2 Navigation possible on GPS/QZSS or GLONASS, simultaneous operation not available

Accuracy Statement

Bad Elf performs a variety of controlled tests on each product to test expected performance. Factors such as sattelite geometry, multipath, environmental conditions are considered in our testing process. Statements of accuracy are in ideal, or near ideal conditions, using best practices for field data collection.

GPS+PPP+SBAS Accuracy

The GNSS Surveyor is capapble of producing 1 meter CEP positional accuracy using GPS+PPP+SBAS. uBlox states that «PPP technology is made possible by stabilizing measurements of the distance between GNSS satellites and the receiver (pseudo-ranges) using carrier phase tracking. Additional accuracy is achieved from ionospheric correctional data received from satellite-based augmentation systems.

The image below represents a sample of what one can expect when using a GNSS Surveyor statically placed over a fixed location for 15 minutes. The center of the circle represents a know surveyed location that all of the measurements are calculated from. The requisite setup for this configuration includes:

• Greater than 6 satelites visible and locked
• SBAS signals being received and SBAS sattelites locked
• Clear view of the sky above 15 degrees from the horizontal

Conditions and results: Avg NSV=7, CEP (0.52m), 2DRMS @95% (1.26m)

DGPS Accuracy

The GNSS Surveyor is capapble of producing 1 to 1.5 meters (CEP) positional accuracy using DGPS and RTCM 2.3. Differential corrections are Code-Phase GPS corrections and require a nearby reference station sending data over NTRIP.

The image below represents a sample of what one can expect when using a GNSS Surveyor statically placed over a fixed location for 15 minutes. The center of the circle represents a know surveyed location that all of the measurements are calculated from. The requisite setup for this configuration includes:

• Greater than 6 satelites visible and locked
• RTCM 2.3 feed active for at least 2 minutes
• Clear view of the sky above 15 degrees from the horizontal

Conditions and results: Avg NSV=7, CEP (1.09m), 2DRMS @95% (2.72m)

Stand Alone Accuracy

Accuracy in non-SBAS regions or using GLONASS instead of GPS is typically between 2-2.5m CEP for static occupations. Stand alone performance is measured using the following parameters:

• Greater than 6 satelites visible and locked
• Clear view of the sky above 15 degrees from the horizontal

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