SPEC SHEET
Trimble R780 Model 2
GNSS system
Shock and vibration
Pole drop
Designed to survive a 2 m (6.6 ft) pole drop
onto concrete
Shock Non-operating: 75 Gs at 6msec
Shock Operating: 40 Gs at 10msec
Vibration
Mil-Std-810G, FIG 514.6E-1 Cat 24, Mil-Std-202G,
FIG 214-1, Condition D
ELECTRICAL
External
External power input with over‑voltage protection on Port 1 (7‑pin Lemo 2‑key)
Minimum 10.8 V, Maximum 28 VDC, shutdown optimized for 12 V lead acid battery operation
Power source supply (Internal/External) is hot‑swap capable in the event of power source removal or
cut off
DC external power input with over‑voltage protection on Port 1 (Lemo)
Receiver automatically turns on when connected to external power
Battery
Rechargeable, removable Lithium-ion battery in internal battery compartment
Internal battery operates as a UPS during an ext power source failure
Internal battery will charge from external power source as long as source can support the power drain
and is more than 11.8 VDC
Integrated charging circuitry
Power consumption
3.8 W in rover mode with internal receive radio
12
4.0-5.3 W in base mode with internal transmit radio
Operating times on internal battery
13
Rover 450 or 900 MHz receive 5.5 hours; varies with temperature
Base station
450 MHz transmit
Approximately 3.5–5 hours; varies with
temperature
900 MHz transmit Approximately 3.5 hours; varies with temperature
Communications and data storage
Lemo (Serial 1)
7‑pin Lemo 2‑key, Power Input, USB. Optional USB to RS232 serial cable. Receiver supports RNDIS
communications over USB
Wi-Fi
®
Client or Access Point. Receive or transmit corrections. Wi-Fi b/g/n
Bluetooth
®
wireless
technology
Fully-integrated sealed 2.4 GHz Bluetooth module
Channel spacing
(450 MHz)
12.5 kHz or 25 kHz spacing available
Sensitivity (450 MHz) -114 dBm (12 dB SINAD)
Radio modem
Fully integrated, sealed 450 MHz wide band transceiver with frequency range of 410-473 MHz (RED
2014/53/EU compliant) or dual‑band 450/900 MHz transceiver (410 MHz–473 MHz / 902 MHz–928
14
MHz frequency range)
Transmit power
0.1 W, 0.5 W, 1.0 W (1.0 W available only where
legally permitted)
(Note: 1 W is only available if "Transmit High
Power" option is enabled)
Range 3‑5 km typical, 10 km optimal
15
Frequency approvals
(410 MHz–473 MHz)
Worldwide, depending on the local required licensing
Positioning rates 1 Hz, 2 Hz, 5 Hz, 10 Hz, and 20 Hz
Data storage 9 GB internal data logging
Data format
CMR+
™
, CMRx, RTCM 2.1, RTCM 2.3, RTCM 3.0, RTCM 3.1, RTCM 3.2 input and output
24 NMEA outputs, GSOF, RT17, and RT27 outputs (RTCM output not supported for 900 MHz UHF)
trimble.com/products/building-construction-field-systems/r780
