Operation Manual

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Appendix B. TERMINOLOGY
EPO Extended Prediction Orbit, predicted ephemeris data
MDS Main Data Server, device will send position information to
server through HTTP message
C/N value
Carrier to noise ratio is the ratio of the carrier signal power
to the noise power in some specified channel, usually
expressed in decibels (dB).
SMS Short Message Service
TTFF Time to First Fix
Windows Mobile Windows-like phone, i.e. PDA
Cellular Phone non-Windows GSM/GPRS mobile phone