HP 8753E Service Manual page 588

Compliance with German FFZ Emissions Requirements
This network analyzer complies with German FIZ 526/527 Radiated Emissions
and Conducted Emission requirements.
Compliance with German Noise Requirements
This is to declare that this instrument is in conformance with the German
Regulation on Noise Declaration for Machines (Laermangabe nach der
Maschinenlaernuerordung -3. GSGV Deutschland).
Acoustic Noise EmissionlGeraeuschemission
Operator Position
Normal Operation
am Arbeitsplatz
Safety and licensing