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DELTA receivers’ family is based on Javads TRIUMPH Technology implemented in our TRIUMPH Chip and is designed to meet all the needs of today’s high precision GNSS satellite receiver market.

For the first time in the GNSS history we offer up to 100 Hz RTK. 216 channels of single or dual frequency GPS, Galileo and GLONASS in a small attractive, sturdy, and watertight box. DELTA contains either TRE-G2T, TRE-G3T, or TRE-G3TAJ, DELTAD contains Duo-G2 or Duo-G2D, and DELTAQ contains Quattro-G3D board.

With the ability to process GPS, Galileo and GLONASS L1/L2, E1 signals as well as SBAS and L5, E5 if necessary, the DELTA receivers work with optimum signal available creating the most reliable results, saving your time and money.

DELTAD and DELTAQ receivers process the dual frequency code and carrier data from two, or four antennas to determine the three orientation angles and three dimensional position up to 100 times per second.
DELTA is very useful in the most of high accuracy applications, such as reference stations and CORS.

The on-board power supply on DELTA receiver accepts any voltage from +10 to +30 volts and delivers clean filtered voltage where needed. This eliminates the risk of power contamination (ripples) that can be created when clean power is generated elsewhere and delivered to the board via cables. DELTA receiver also includes TriPad (two LEDs, ON/OFF and function button). In addition, the receiver comes with large amount of flash for data storage. The CAN interface in DELTA receiver is provided complete with all associated hardware and firmware, not just the CAN bus. The same is true with all the serial RS232/RS422 ports in our receiver. Simply stated, additional functions are not needed to incorporate any of our DELTA Receiver in most applications.

In addition to timing strobe and event marker, the DELTA receiver includes the option of complete IRIG timing system.

Universal standard GNSS receiver The well-designed and implemented DELTA receiver will be very useful in your surveing applications, and work can begin within minutes of arriving at a site. Multy-porpose DELTA receiver - joint venture for geophisical studies, dam operations, surveying,mapping,monitoring, etc.

Real-Time Heading
Usually, one needs two receivers interconnected through the serial ports. One of them is a moving base and another is a rover. DELTAD combines both boards connected internally in one unit.

Real-Time Attitude and Position calculation
The dual frequency code and carrier frequency data are processed to determine the three orientation angles and three-dimensional position up to 20 times per second. DELTAQ can also operate in the RTK or DGPS modes receiving differential corrections from an external base station to provide differentially corrected position and velocity.

Specifications are subject to change without notice.

Standard Configuration

  • GPS L1/L2/L2C, L5 (G2T, G3T, G3TAJ only)
  • GLONASS L1/L2 (G3T, G-3TAJ, Q-G3D only)
  • Galileo E1 (D-G2, D-G2D, Q-G3D only)
  • RAIM
  • TriPad Interface
  • RS232 Serial Port (460.8 kbps)
  • External GNSS Antenna TNC Female connector

Specifications are subject to change without notice.


  • Galileo E1/E5A (G2T, G3T, G3TAJ)
  • Update Rate 5Hz, 10Hz, 20Hz, 50Hz & 100Hz
  • RTK Rate 5Hz, 10Hz, 20Hz, 50Hz & 100Hz
  • Data Recording up to 2048MB
  • Multi-Base Code Differential Rover
  • Code Differential Base
  • Advanced Multipath Reduction
  • In-Band Interference Rejection
  • Two Event Markers
  • Two 1 PPS timing strobes
  • Up to 2 CAN 2.0 ports
  • External Reference Frequency Input/Output (DELTA
    and DELTAQ)
  • External Reference Output Frequency Converter (5/10/20
    MHz, -2dBm to +13dBm, step 1dB) (DELTA and DELTAQ)
  • Up to 3 high Speed (460.8 kbps) RS232 Serial Ports
  • High speed RS422 serial port (up to 460.8 Kbps)
  • USB port
  • Ethernet

Specifications are subject to change without notice.

Constellations and Signals

  G2T G3T G3TAJ G2 G2D
Channels 216 216 216 216 216 216
GPS L1 2 2 4
GPS L2/L2C - 2 4
GPS L5 - - -
Galileo E1 2 2 4
Galileo E5 - - -
GLONASS L1 - - -
GLONASS L2 - - -
Max no. satellites tracked all in view

Technical information

Autonomous Accuracy <2m
Static, Fast Static Accuracy Horizontal: 0.3 cm + 0.5 ppm * base line length
Vertical: 0.5 cm + 0.5 ppm * base line length
Kinematic Accuracy Horizontal: 1 cm + 1 ppm * base line length
Vertical: 1.5 cm + 1.5 ppm * base line length
RTK (OTF) Accuracy Horizontal: 1 cm + 1 ppm * base line length
Vertical: 1.5 cm + 1.5 ppm * base line length
Real time attitude accuracy DeltaD/DeltaQ only:
Heading ~ 0.004/L [rad] RMS,
where L is the antenna
separation in [m]
DGPS Accuracy < 0.25 m Post Processing, < 0.5 m Real Time
Pos/ fix update rate

Delta G2T,G3T,G3TAJ: up to 100 Hz
DeltaD G2,G2D: up to 50 Hz RTK +heading
DeltaQ: up tp 20 Hz RTK+attitude

Cold start <35 s
Warm start <5 s
Reacquisition <1 s
RS232 3
RS422 1
Event Marker 2
1PPS 2
Battery -
Input Voltage +4.5 to +35 volts
TriPad Two buttons, two LEDs
On-board flash, MB 2048
GNSS Antenna External
Real time data outputs RTCM SC104 versions 2.x and 3.x Input/Output
ASCII Output NMEA 0183 versions 2.x and 3.0 Output


Size, mm (WxHxD 109 x 35 x 141/max 160 with connectors
Weight, g

Delta G2T:             394g
Delta G3T/ G3TAJ:  401g
DeltaD G2/G2D:     414g
DeltaQ:                 454g

Enclosure Aluminum extrusion, waterproof IP66
Operation temperature -40° C to +80° C
Storage temperature -45° C to +85° C

Specifications are subject to change without notice.