RFI Mitigation

Radio Frequency Interference, RFI, is increasingly an issue for siting sensitive instruments, communications system design and operation, and human RF Exposure safety.

VitaTech Consultants apply our decades of experience in assessing Radio-Frequency environments against your facility needs and functions so that your systems perform as expected. The assessment, design and installation of low-RFI environments is a specialty of VitaTech, and a requirement for controlling the electromagnetic environment in critical, sensitive, or high RF areas.

Specifically, RF interference assessment is a requirement for:

· Sensitive medical devices (e.g. MRI’s, NMR’s, EEG’s, MEG’s)
· Sensitive research equipment (e.g. STMs, some AFM’s, certain cryogenic amplifiers, CCD’s, and other applications)
· Commercial Grade recording/production studios
· Systems employing RFID (e.g. manufacturing, medical)
· High-Rise buildings with first-responder/cellular repeaters
· Safety Systems – Elevator Controllers, Environmental controls
· Dense RF transmitter environments (rooftops, etc)

It is important to perform an assessment if you have sensitive facilities or functions that are:

· Nanoscale/high-resolution in character
· In proximity to high-power broadcast or communications transmitter
· Installation sites for multiple RF transmitters (rooftops)
· Utilizing RF Spectrum
· Classified, Sensitive, Secure
· Utilize Radio Frequency Identification systems
· Highly-automated with sophisticated control systems

Sources for RFI are not always obvious.

Typical sources:

· TV/AM/FM Broadcast transmitters
· WiFi Nodes
· Cellular Phones

Atypical Sources:

· Variable Frequency Drive (VFD) Pumps and motors
· Fluorescent Light Ballasts
· RFID scanners
· Heat Sealers