With decades of experience in the surveying GNSS receiver, the T300 is a product which combines lots of market proved advantages together. It can track all the working GNSS constellations. By using ComNav’s unique QUANTM algorithm technology, it can function in RTK mode with all the GNSS constellations or by using any single GNSS constellation such as GLONASS or BeiDou. The strong anti-interference ability of the receiver makes it possible to work in any environment.

•            Ultra Small
•            Super light
•            Many user-friendly conveniences built in
•            GPS L1/L2/L5, BeiDou B1/B2/B3, GLONASS L1/L2
•            Low power consumption
•            Support long base line E-RTK

• Signal Tracking
  Channels	256 channels with simultaneously tracked  satellite signals
  GPS	L1 C/A, L1C, L2 P, L5
  BeiDou	B1, B2, B3
  GLONASS	L1, L2
  Galileo	Reserved
  SBAS	WAAS, EGNOS, MSAS,GAGAN
  Performance Specifications
  Cold start	<50s
  Warm start	<30s
  Hot start	<15s
  Initialization time	10s
  Signal re-acquisition	<2s
  Initialization reliability	Typically>99.9%
  Positioning Specifications
  Post Processing Static	Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm + 0.5 ppm RMS
  Real Time Kinematic	Horizontal: 8 mm + 1 ppm RMS Vertical: 15 mm + 1 ppm RMS
  E-RTK (<100km)	Horizontal: 0.2 m + 1 ppm RMS Vertical: 0.4 m + 1 ppm RMS
  Code differential GNSS positioning	Horizontal: 0.25 m+ 1 ppm RMS Vertical: 0.5 m + 1 ppm RMS
  SBAS	Typically < 1 m 3D RMS
  Standalone	<1.5 m 3D RMS
  Communications
  Communication port	1 Serial port (7 Pin Lemo), Baud rates up to 921,600 bps
  Radio modem	Tx/Rx with full frequency range from 410-470 MHz2 Transmit power: 0.5-2W adjustable Range: 1-4km
  Positioning data outputs	1HZ, 2HZ, 5HZ, 10HZ, 20HZ
  Indicating light	5 LEDs (indicating Power, Satellite Tracking, Bluetooth® and Data Recording)
  Bluetooth®	V 2.X protocol, work compatible with Windows 7, Windows mobile and Android
  Data Format
  Data inputs/outputs	Correction data I/O: RTCM2.x, 3.x,CMR(GPS only), CMR+(GPS only)
  Position data outputs	ASCII: NMEA-0183 GSV, RMC, HDT, VHD, GGA, GSA, ZDA, VTG, GST, PJK, PTNL ComNav Binary update to 20Hz
  Physical
  Size(W×H)	15.8cm×7.5cm
  Weight	0.95kg(include battery)
  Environmental
  Operating temperature	-40 °C to +65 °C (-40°F to +149°F)
  Storage temperature	-40 °C to +85°C (-40°F to +185°F)
  Humidity	100% condensation
  Waterproof and dust proof	IP67 protected from temporary immersion to depth of 1 meter, floats
  Shock	Survives a 2-meter drop on to concrete
  Electrical
  Input Voltage	5-27 VDC
  Power consumption	2.85 W(3 constellations)
  Li-ion battery capacity	2x1800 mAh, Up to 8 hours typically
  Memory	8 GB internal with up to 16GB pl able memory card
  Software
  CGSurvey	ComNav’s field data collection software CGSurvey
  SurvCE (optional)	Carlson’s SurvCE field data collection software
  FieldGenius (optional)	MicroSurvey’s FieldGenius field data collection software
  Note:ComNav will remove the radio modem according to different country’s regulations. http://www.comnavtech.com/products-detail.asp?id=13&nclassid=2