Product Features and Specifications for OEM Board OEM-1

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OEM-1 Board features:

Physical

• Size 60 x 100 x 13 mm
• Weight ≤60 grams
• Mounting Six holes to install M3 screws
• User Interface Connectors
  • Two row 24 pin terminal strip of TMM series, Samtec TMM-112-03-L-D\
  • Two row, 50 pin receptacle, Molex 52760-0670

Environmental

• Operating Temperature -30° C to +85° C
• Storage Temperature -40° C to +85° C
• Humidity 95%, non-condensing
• Vibration
  • 4g Sine Vibe (SAEJ1211)
  • 7.7g Random Vibe (MIL-STD 810F)
• Shock 30g (IEC 68-2-27)

Power

• Voltage +3.3 (+5/-3)%VDC
• Voltage Ripple 150 mV p-p max
• Power Consumption 1.8W typical, 2.5W max

RF Input/LNA Power Output

• Antenna Connectors MMCX Female Straight Through Hole, 50 Ω impedance
• RF Input Frequencies
  • GPS: 1575.42 MHz (L1), 1227.60 MHz (L2)
  • GLONASS: 1598.0625-1609.3125 MHz (L1),
  • 1242.9375 - 1251.6875 MHz (L2)
• LNA Power +4.75 to +5.10 VDC @ 0 - 70 mA

Input/Output Strobes/Signals

• PPS (Pulse Per Second Output) 5 ns resolution, ≤30 ns pulse-to-pulse precision, LVTTL, configurable
  polarity and period
• EVENT (Input Mark) 5 ns resolution, TTL, programmable active edge
• Radar Output Square waveform with a 50% duty cycle
• Conversion for Radar Output 94 Hz/m/s, +/- 1Hz tolerance

Input/Output Data Interfaces

• RS-232 one port up to 460.8 kbps
• LVTTL Serial two ports up to 921.6 kbps
• USB 1.1 (device) one port up to 12 mbps, USB D(+), USB D(-), V_bus support
• CAN two ports (w/o transceivers), NMEA2000 compliant

Performance

• Number of channels for SV tracking 72 GPS L1 C/A, L2C, L2 P(Y), GLONASS L1/L2 code & carrier
• Acquisition Time (TTFF)
  • Hot (almanac & recent ephemeris and approx. position) <10 sec
  • Warm (almanac, approx. position & time, no recent ephemeris) <35 sec
  • Cold (no almanac or ephemeris and no approx. position or time) <60 sec Reacquisition <1 sec
• Data formats supported
  • NMEA 0183 versions 2.1, 2.2, 2.3 and 3.0 Output Proprietary (TPS) data format
  • RTCM SC104 versions 2.1, 2.2, 2.3 and 3.0 Input/Output
  • Geoid and Magnetic Variation models
  • Grid coordinates output

Data Rates

• Raw Measurements up to 100 Hz
• Position up to 100 Hz

Accuracy (L1/L2)

• Position standalone Horizontal 2m CEP, Vertical 3m CEP
• Position differential (RTCM based) Horizontal 0.4m CEP, Vertical 0.6m CEP
• Position RTK Static
  • Horizontal 3mm + 0.5ppm x baseline
  • Vertical 5mm + 1.0ppm x baseline
• Position RTK Kinematic
  • Horizontal 10mm + 1.0ppm x baseline
  • Vertical 15mm + 1.0ppm x baseline
• Velocity 0.02m/sec CEP
• Time 25 nsec CEP

Measurement Precision

• C/A code phase < 1m
• L1/L2 carrier phase differential < 2mm

Heading Parameters

• Signal sampling period 1 msec
• Heading update rate up to 100 Hz
• Inclination for antenna vector, max +/- 30 deg
• Heading Rate of Change, max 4*PUR/L (deg/s), where PUR is Position update rate in Hz and L is antenna separation in meters
• Heading Accuracy
  • 0.2 deg / L (Urban)
  • 0.1 deg / L (Field), where L is antenna
  • separation: 0.3m ≤ L ≤ 10m