294                                                                                                                     Keysight N9938-90003 User’s Guide
Safety Considerations
Environmental Requirements
Environmental Requirements
Refer to the FieldFox Specifications in “Specifications/Data Sheet” on 
page 761.
Electrical Requirements
The FieldFox allows you to use either the lithium-ion battery or the AC/DC 
adapter - both are included. 
Electrostatic Discharge (ESD) Precautions
The FieldFox was constructed in an ESD protected environment. This is 
because most of the semiconductor devices used in this instrument are 
susceptible to damage by static discharge.
Static charges are generated in numerous ways, such as simple contact, 
separation of materials, and normal motions of persons working with the 
FieldFox. To prevent instrument damage, practice industry accepted 
techniques for handling static sensitive devices when using the FieldFox. 
Very often, coaxial cables and antennas also build up a static charge, which, if 
allowed to discharge by connecting to the FieldFox, may damage the 
instrument input circuitry. To avoid such damage, it is recommended to 
dissipate any static charges by temporarily attaching a short to the cable or 
antenna prior to attaching to the instrument. 
FieldFox Markings
The table below lists the definitions of markings that may be displayed on or 
with the product.
The CSA mark is a registered trademark of CSA International. 
The RCM Mark is a registered trademark of the Australian Communications and 
Media Authority.