Background Information - Leica GR30 Online Help Manual

Background information

An external oscillator can be used to provide a better quality time signal to the instrument than the internal clock, for example, through
the use of a rubidium or caesium oscillator.
The same external oscillator can also be used with a number of receivers so that each instrument is guaranteed to be tracking satellites
using the same time signal. An external oscillator is attached to the instrument via the port OSC.
Click here for the technical specifications of the external oscillator port and the required cable.
Configuring an external oscillator
Step Description
Connect the oscillator cable with the external oscillator.
1
Find the external oscillator port (OSC) on the back of the instrument.
2
Connect the other end of the oscillator cable with the external oscillator port (OSC).
3
In the web interface go to GNSS management / Tracking.
4
Select the oscillator type and the frequency.
5
If the receiver should fall back to the internal oscillator in case the external time signal is lost, activate the
6
Oscillator fallback check box. Then press the Save button.
After this the external oscillator is used by the instrument instead of the internal oscillator.
6
If an external oscillator is selected but not connected, the receiver will not track any satellite signals.
If an external oscillator is selected but not connected and the fallback option is activated, the internal
clock will be used.
11: External Devices
231