Replay

Media/Memory 

LabSat 4 units use an internal SSD to replay GNSS data.

You can also connect to and use Network File Systems (NFS) to replay the data. 

Connections

The RF OUT connector on the rear panel of the LabSat 4 unit is a 50 Ω output that can be connected directly to the antenna input of the Device Under Test (DUT). The RF OUT connector of LabSat 4 is DC blocked internally to make it safe to connect almost any device to this port.

Setup

When you select a file for replay, the LabSat 4 unit will automatically configure constellation frequencies and digital channels before it starts the replay.

LabSat 4 comes with an internal variable attenuation capability with a range of + 20 dB and - 69 dB. You can increase or decrease the attenuation in 1 dB increments by pressing the Up/Down arrow buttons.

Replaying Example

Example of how to replay a scenario file from the SSD.