08 - LabSat3 External reference clock input

LabSat 3 features an external reference input for synchronization to a 10 MHz clock. To use this feature, connect a 10 MHz reference signal with a -2 dBm to +14 dBm level (0.5–3 Vp-p) to the REF IN SMA connector and ensure that the 'External 10MHz' reference clock option is ticked in Menu > Setup > CLK REF > External 10 MHz.

When the external reference input is enabled, the symbol  will appear in the top right corner of the LCD.