Trimble Spectra Epoch 50 GNSS UHF Survey Receiver

  • $1,999.99

Spectra Precision EPOCH 50 GPS GLONASS UHF Rover Receiver


For sale is Spectra Precision EPOCH 50 GPS GLONASS UHF Rover Receiver

Spectra Precision EPOCH 50
The Spectra Precision® EPOCH 50 GNSS receiver, with its 220 channels, makes effective use of the GPS L1/L2/L2C/L5 and GLONASS L1/L2 signals for outstanding satellite coverage and precise positioning. EPOCH 50 uses proven technologies to provide both an extremely stable phase center and tracking of the newer L2C and L5 signals.

EPOCH 50 GNSS systems with Survey Pro field software provide field crews with the tools and capabilities to get the job done. With maximum stability, precision, quality, and easy to use work flows, the EPOCH 50 GNSS systems are packed full of proven technologies that you can rely on day-to-day.

The EPOCH 50 GNSS receiver has an internal transmit and receive radio modem so that every receiver may be used as either a base or a rover. Use the internal radio on a construction site for a quick and easy setup. EPOCH 50 also supports external radio and cellular modems for added flexibility and range. In addition, communicate cable free with Bluetooth® to your choice of world-class Spectra Precision data collectors.

EPOCH 50 provides added productivity and cost savings with support of RTK Network technology for single base and NTRIP operations. Connect to networks with Spectra Precision WWAN-enabled data collectors for added flexibility.

Designed with greater than 99.9% reliability initializations, the EPOCH 50 GNSS receiver provides fast, high quality results in all supported survey modes. Consistent accurate results, quality construction, and affordable pricing make EPOCH 50 the ideal choice for a productive business.

Spectra Precision Survey Office software provides a complete office solution for post-processing GNSS data and adjusting terrestrial survey data. Export your processed and completed results directly back to the field or design software packages using a variety of file formats.


  • 220 Channels for Multi- Constellation GNSS support
  • Integrated Transmit and Receive data link
  • RTK, Static, and PPK
  • Network RTK positioning
  • Spectra Precision Survey Pro field software
  • Support for all GNSS data withSpectra Precision Survey Office software


  • Advanced, sixth generation, custom survey GNSS technology
  • High-precision multiple correlator for GNSS pseudorange measurements
  • Unfiltered, unsmoothed pseudorange measurements data for low noise, low multipath error, low time domain correlation and high dynamic response
  • Very low noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz bandwidth
  • Proven Spectra Precision low-elevation tracking technology
Start-up Cold start: < 60 seconds from receiver activation
Warm start: 30 seconds with recent ephemeris
Initialization Typically < 10 seconds
Communications Internal: Pacific Crest ADL Foundation UHF transceiver modem. 1 W maximum transmit power, Multiple protocols and data rates
External: Optional Pacific Crest ADL Vantage or Vantage Pro UHF modem, up to 35 W available
Bluetooth Type approvals are country specific. For more information, contact your Spectra Precision dealer.
RTK Inputs RTCM 2.1, 2.2, 2.3, 3.0 & 3.1, CMR, CMR+, FPK, NTRIP support
RTK Outputs RTCM 2.1, 2.2, 2.3, 3.0, CMR, CMR+
Internal memory 64 MB, 9 MB reserved for firmware
Physical specifications
Size (W x H x D) 19.0 cm x 10.7 cm x 20.0 cm (7.48 inch x 4.21 inch x 7.87 inch), including connectors
Weight 1.34 kg (2.95 lb), including internal battery and UHF antenna
Average operating times on internal battery RTK / Static: 4.0 hours (radio in receive mode)
External power input 10 V DC to 20 V DC power with over-voltage protection on Port 1 and Port 2 (7-pin)
Operating temperature –20 °C to +60 °C (–4 °F to +140 °F) 
–20 °C to +55 °C (–4 °F to +131 °F), with internal radio transmitting
Storage temperature –40 °C to +75 °C (–40 °F to +167 °F)
Humidity SAE J1455
Dust / Water Sealed against dust and water
Vibration MIL-STD-810F Fig 514.5C-1
Positioning specifications
Code differential GNSS positioning Horizontal: 0 25 m + 1 ppm RMS
Vertical 0 50 m + 1 ppm RMS
SBAS differential positioning accuracy Typically <5 m 3DRMS
Static and FastStatic GNSS surveying Horizontal 3 mm + 0.1 ppm RMS
Vertical 3.5 mm + 0.4 ppm RMS
Kinematic surveying Horizontal 10 mm + 1 ppm RMS
Vertical 20 mm + 1 ppm RMS
Initialization time: Typically <10 seconds
Initialization reliability  Typically >99 9%

- CMR Outputs
- RTCM Inputs
- RTCM Outputs
- Binary Outputs
- Data Logging
- L2CS
- L5
- Enable GLONASS
- Enable Webserver
- Internal UHF Modem

Comes exactly as shown. Only unit is included.