Dgps; Dgps1 - Current Dgps Correction Status - Leica MX400 Operating Instructions Manual

Operator's Manual

DGPS

There are two DGPS screens in the receiver. The DGPS functions
are highly interactive with two CFG1 menu selections.
Ø
DGPS - sets the internal or external control for RTCM SC-
104 corrections which affects your correction source either from
the internal beacon receiver (built-in beacon only models) or the
external data port (any model)
Ø
NMEA, Dual Control, WPT&RTE, Log, Fuel, Printer Ports,
etc. - these port settings can not conflict with the DGPS selection
of External. If you select External DGPS, you may need to
reconfigure these ports.

DGPS1 - Current DGPS Correction Status

There are five windows in this display, the four left hand windows
are divided into control and configuration windows. The right hand
window displays all the corrections which are being received.
Status will tell you whether the correction data is being decoded
error free or not. Normally, Status will indicate DGPS OK, Track-
ing or Searching. DGPS OK indicates that RTCM SC-104 DGPS
corrections are being received without errors within the Age Limit
set in CFG1 DGPS. These can originate in either the internal
beacon receiver or from a device connected to the external port.
Searching indicates that the internal beacon receiver (models with
built-in becaons only) is searching for the appropriate frequency
and/or modulation of the beacon transmitter. You might see the
label Tracking which indicates that a MSK beacon signal is present,
but DGPS corrections are being received. This is usually caused by
high noise on the beacon receiver or external device.
If you press the E key, you can select between Automatic beacon
search mode, Manual beacon tuning mode, or Off (models with
110
DGPS
Version 3.3