Topcon HiPER GD, Operator'S Manual

Page: 116 / 180

Operation
Topcon HiPer GD and HiPer GGD Operator’s Manual
4-8
Information Modes
The receiver has two information modes: Normal and Extended
Information Mode (EIM).
Normal
In normal mode, the STAT LED indicates the number of
tracked satellites and the position’s computation status.
Extended Information Mode (EIM)
Extended Information Mode is used for receiver testing
purposes. In this mode, the receiver continues to work as
usual, but the STAT LED indicates the following
“extended” information:
• Delimiter – an easily distinguishable double-blink that
shows the overall status of tests performed in EIM. The
STAT LED color for delimiter is calculated from the
colors of other STAT LED blinks.
–Orange: at least one blink is orange.
–Red: no orange blink and at least one red blink.
–Green: all other cases.
• Sufficient data for position computation.
• GPS S/N ratios are good (Table 4-2 on page 4-9).
• GLONASS S/N ratios are good (Table 4-2 on
page 4-9).
• Oscillator’s frequency offset is less than three ppm.
• Oscillator's Allan Variance is better than 2.7e-10.
• Continuous tracking time is more than 15 minutes.