Note 1 : The D letter is displayed in the top left of the screen when the FX412 calculates its
position in differential mode. The indication of accuracy (ECP) automatically takes into account
the precision of the differential mode.
Tip : Select the nearest DGPS station using the ANNEXE 4. If after 5 minutes your FX412 does
not work in DGPS mode, check the data entered or try other stations.
Note 2 : You can also use an external DGPS receiver. In order to proceed, connect the FX412
to the DGPS receiver with the help of instructions in Chapter E (INSTALLATION
INSTRUCTIONS) and configure the data input of the FX412 for DIFFERENTIAL format. Set up
your FX412
on EXTERN for the TYPE and select the working mode for the DGPS (see previous
paragraph). Please read your DGPS receiver manual for further information. The letter ‘D’ is
displayed on the top left of the screen when the FX412 calculates its position in di
fferential
mode.
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