.. _buffered_cables:

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Buffered Cables
===================
 
The buffered cables have an integrated amplifier ("line driver"). |br|
At higher frequencies (e.g. 10 kHz and above) and higher resistivities (1 kOhm and above) you get a phase shift from the electrode-cable input. |br|
In order to avoid that you will use buffer cables (length 25m (@64kHz target f) or 5m (@524 target f) ). For the :ref:`SHFT sensor <shft-02e>` this is a must. 
For the MFS-07e you also can reach this necessity. |br|
As electrodes you should use a steel rod.