RoyalTek REV-2000 - Manual (Page 12)

RoyalTek GPS Receiver REB-2000/REB-12R REV-2000 Operational Manual
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You could see the following screen after you switch to SiRF protocol.
12-Channel Signal Level Data:
Information Displayed Description
Satellite Number (SV) GPS satellite PRN number
Status (St) Satellite status
Azimuth (Az) Satellite azimuth (in degrees)
Elevation (EI) Satellite elevation (in degrees)
C/No Signal level (in dB-Hz)
Signal Level (-5 sec) 5-second history
Tracking view:
Green: Satellite is tracked and used to
calculate the navigation solution.
Blue: Satellite is tracked but is not
used to calculate the navigation
solution.
Red: Satellite is lost tracked.
Development data view: It is for