A8 GNSS RTK System Operation Manual
Led Status Instructions
Led
Instruction
Power led
Always on
In normal voltage: internal battery voltage >7.6V,
(yellow) external battery voltage >12.6V
Always on
In normal voltage: 7.2V＜internal battery voltage
≤7.6V, 11V＜external battery voltage ≤12.6V
Power led
Slow flash
Low power-pressure: inter≤7.2V，external≤11V
(red)
Fast flash
Power status hints: one or four times of one
minute
Off
In external radio, and static mode
Status
Always on
GPRS module has been connected to internet
server successfully
(green led for
GPRS module has been connected to internet
status)
Slow flash
successfully
Fast flash
GPRS module is trying to connect to internet server
1. getting correction data via GPRS or radio (only
Slow flash
receiving corrections for rover while transmitting
for base)
Data led (red 2. collection s tatic data in static mode
led for
Fast flash
Error in static mode (typically for no more flash
status)
memory)
Communication module in error for getting data,
Always on mainly resulted by problem in module so that no
data output
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