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.