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Trimble R7/R8 GPS Receiver User Guide 155
Specifications 17
Trimble R8 Operation
Transmit radio Transmit power: 0.5 watts
Wireless data rate: 4800, 8000, 9600, 16000, and
19200
Frequency bands: 410-430MHz, 430-450MHz,
450-470MHz
Channel Spacing: 12.5kHz and 25kHz
Number of channels: Total of 20 factory
pre-programmed transmit frequencies or user
configured receive frequencies
RF modulation format: Gaussian Minimum Shift Keying
(GMSK) at 4800, 8000, 9600, 16000, and 19200 bps
Range: Optimal 10 km (line of sight); Typical: 3–5 km
(varies with terrain and operational conditions)
Battery life: Up to 3.5 hours (varies with temperature
and wireless data rate)
GSM module Certification: Class B Part 15, 22, 24
FCC certification: 850/1900
Class 10 GSM module
CE Mark approval
C-tick approval
GSM: type approvals are country specific. For more
information, contact your Trimble representative.
Bluetooth Type approvals are country specific. For more
information, contact your Trimble representative.
Configuration Through user-definable application files or GPS
Configurator
Output formats NMEA-0183: AVR; GGA; GSA; GST; GSV;
PTNL,GGK; PTNL,GGK_SYNC; HDT; PTNL,PJK;
PTNL,PJT; ROT; PTNL,VGK; VHD; VTG; ZDA
GSOF (Trimble Binary Streamed Output)
RT17
Table 17.3 Technical specifications (continued)
Feature Specification