.. _gwpy-cli-example-spectrum-times:

#####################
Spectrum at two times
#####################



.. code:: sh

   $ gwpy-plot spectrum \
       --chan H1:GDS-CALIB_STRAIN L1:GDS-CALIB_STRAIN \
       --start 1126259446 \
       --start 1187008866 \
       --duration 32 \
       --interactive

.. image:: spectrum-times.png
   :align: center
   :alt: Spectrum at two times