obspy.io.reftek.core._is_reftek130¶

_is_reftek130(filename)[source]¶

Checks whether a file is REFTEK130 format or not.

Parameters:	filename (str) REFTEK130 file to be checked.
Return type:	bool
Returns:	`True` if a REFTEK130 file.

Checks if overall length of file is consistent (i.e. multiple of 1024 bytes) and checks for valid packet type identifiers in the first 20 expected packet positions.