For continuum observations:

• BEACON (Backend for advanced continuum observations)
• Several receivers are equipped with polarimeters (e.g. secondary receivers at 2.8cm, 3.6cm, and 6cm. See also
  the technical information on the receiver page).
• 8-Bank polarimeter for the 18/21cm- and for the 11cm-receiver

For spectroscopy:

• XFFT spectrometer (XFFTS)
• Array FFT spectrometer (A-FFTS, with 16 banks)

A description of the FFT spectrometers and how they work can be found in the paper of Klein et al.

For pulsar observations:

• Digital Filter Bank (DFB)
• Search-Backend (P-FFTS)

For VLBI observations:

• dBBC (FS9-type)
• RDBE (VLBA-type)
• MK 5 recorder