Table Of Contents

Reference Frequency Source

Last Modified: May 22, 2018

Specifies the source of the signal used as a frequency reference for the local oscillator (LO).

Data type: datatype_icon

Name Value Description
Internal "Internal"

Specifies the onboard reference signal as the source for the frequency reference signal.

RefIn "RefIn"

Specifies the reference signal received from the REF IN connector on the device front panel as the source for the frequency reference signal.

Mimo "Mimo"

Specifies the reference signal received from the MIMO EXPANSION connector on the device front panel as the source for the frequency reference signal.

GPS "GPS"

Specifies the reference signal received from the GPS.

Default: Internal

Long Name: Clocking and Synchronization:Reference Frequency Source

Class: NI-USRP

Permissions: Read/Write

Channel-based Yes
Resettable Yes

Where This Property Is Available:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application

Hardware Support:

This property supports the following hardware:

  • USRP-2900/2901
  • USRP-2920/2921/2922
  • USRP-2930/2932
  • USRP-2940/2942/2943/2944/2945
  • USRP-2950/2952/2953/2954/2955


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