Leica MX400 Operating Instructions Manual page 132

Configuration
Internal Beacon Settings
DGPS Mode:
On - sets the receiver to automatic DGPS or GPS modes. This is
the default setting. If DGPS corrections are being received
and their age is less than the Max Age limit, the receiver will
operate in DGPS mode (assuming you are receiving
corrections for enough satellites to operate in DGPS mode).
Otherwise, the receiver operates in GPS positioning mode.
The traffic light will give a Green indication when you are
in DGPS mode.
When you drop to GPS mode, a DGPS symbol will be
displayed (indicating Non Differential GPS mode), and the
traffic light will change to Yellow/Green.
Use this mode when maximum navigation coverage is more
important than accuracy. Reverting to GPS mode will
degrade the overall navigation results, but it is better than
no navigation results at all in most circumstances.
DGPS Only - sets the receiver to only provide DGPS position
fixes. If corrections are being received, and their age is less
than the Max Age limit, the receiver will operate in DGPS
mode (assuming there are enough corrections to operate in
DGPS mode). Otherwise, the receiver will not provide any
position fix at all.
Use this mode when accuracy is more important than
maximum navigation coverage. When operating in this
mode, you should also set the Max Age to 30 seconds.
Off - sets the receiver to operate in GPS mode only.
Fast Decode:
Version 3.3
Operator's Manual
External Beacon Settings
119