Determining ambient noise in a device under test electromagnetic compatibility test environment

A system, comprising:

• a processor;
• and
• a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
• in response to receiving, during a first configuration of the system, a first input signal via a radio frequency port of the system, determining a noise floor of a measurement environment of the system;
• and
• in response to receiving, during a second configuration of the system via the radio frequency port, a second input signal representing an electromagnetic characteristic of a device under test, subtracting the noise floor from the electromagnetic characteristic to obtain an electromagnetic emission of the device under test.

A machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:

• electronically coupling an input port to an electrical interface communicatively coupled to the processor;
• determining, via the input port, background electromagnetic noise;
• and
• in response to determining, via the input port, an electromagnetic characteristic of a device under test, subtracting the background electromagnetic noise from the electromagnetic characteristic to obtain an electromagnetic emission of the device under test.