Sokkia GSR2700 IS, Operation Manuals, Page: 67 / 87

Appendix A
56 GSR2700 IS Operations Manual
Vibration (Random Profile) <from Radian IS manual; this section needs to be
confirmed or updated>
The GSR2700 IS can acquire and track satellites while undergoing vibration
levels as shown below. It assumes that C/No > 45 db-Hz and that the
GSR2700 IS is in high-dynamics mode. Assuming appropriate mounting, the
GSR2700 IS conforms to random vibration templates for RTCA/DO-160D,
Section 8 (Curve C template), MIL-STD-202F, Test Condition I (Letter A
nominal template), and ASAE EP455, Section 5.15.1 nominal template.
Frequency < 10 Hz, 10 Hz, 40 Hz, 1000 Hz, 2000 Hz, > 2000
Hz
Magnitude (g2/Hz) + 80 dB/decade, 0.00125, 0.02, 0.02, 0.005, -80 dB/
decade
Power Requirements
Power Input • External: +9 VDC to +18 VDC
• Internal: +10.8 VDC
Consumption <5 W using internal radio
Port 1 x external power port
Peripheral Power Output (COM1 and COM2)
Voltage
≅
supplied voltage
Current 1 A
Power Management
Once the internal batteries are completely discharged, the GSR2700 IS
becomes inactive. Normal operations are resumed when you charge the
internal batteries or when you connect an external power source to the system.
For further details, see Section 5.2.2,
External power source , page 43.
Table 17: GSR2700 IS Technical Specifications (continued)