# Using LimeSDR Mini Clock Output as LIMESDR-USB external clock input

**URL:** <https://discourse.myriadrf.org/t/using-limesdr-mini-clock-output-as-limesdr-usb-external-clock-input/4451>\
**Category:** LimeSDR\
**Created:** [27 March 2019 22:34 UTC](https://discourse.myriadrf.org/t/using-limesdr-mini-clock-output-as-limesdr-usb-external-clock-input/4451 "2019-03-27T22:34:31Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![booth](https://avatars.discourse-cdn.com/v4/letter/b/848f3c/32.png) [@booth](https://discourse.myriadrf.org/u/booth)\
**Post date:** [27 March 2019 22:34 UTC](https://discourse.myriadrf.org/t/using-limesdr-mini-clock-output-as-limesdr-usb-external-clock-input/4451/1 "2019-03-27T22:34:31Z")

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Hi All,  
Is it possible to use the Clock Output of the LimeSDR Mini as an external clock input to LIMESDR-USB?  
Also I wonder if anybody measured the drift in sampling frequency for a board around 40-50 degrees Celsius.  
I am sampling at 10 MS/s, how many samples per second drift should I expect?