ametek-diamond Our Brands ametek-diamond
Our Brands

An end-to-end RF test & measurement solutions provider

AMETEK unites four of the most trusted names in EMC and RF testing — EM TEST, Teseq, AR (Amplifier Research), and NSI‑MI Technologies — to deliver one of the industry’s most complete portfolios of compliance, immunity, antenna measurement, EMC and RF test solutions. Together, these brands offer unmatched expertise across automotive, aerospace, defense, industrial, medical, and commercial applications. From high‑precision transient and ESD testing to advanced RF systems, high‑power solid‑state amplification, and industry‑leading antenna measurement solutions, we provide the technology, performance, and reliability needed to meet today’s demanding global EMC and RF standards.

EM TEST – Brand Overview
EM TEST

EM TEST is a leading brand within AMETEK CTS specializing in automotive, industrial, and telecom EMC test equipment. Their portfolio includes solutions for transient immunity, conducted disturbances, ESD, power supply simulation, and automotive electrical testing. EM TEST is known for innovative designs, user‑friendly interfaces, and strong alignment with major global standards such as ISO, IEC, and OEM‑specific test requirements. They support R&D, compliance labs, and manufacturers needing accurate, repeatable test environments.

  • Automotive Electrical Disturbances
  • Automotive Supply Voltage Variations
  • Automotive Battery Simulators
  • Harmonics & Flicker
  • Programmable AC/DC Power Sources
  • Dips, Interrupts & Variations
  • Ring Wave / Damped Oscillatory
Learn More
Teseq – Brand Overview
Teseq Banner

Teseq is a leading EMC brand offering comprehensive RF immunity, emissions, and conducted disturbance test systems. Their lineup includes RF generators, solid‑state amplifiers, CDNs, ESD systems, and control software, all built around modularity and performance. Teseq solutions support IEC, MIL‑STD, automotive, aerospace, and consumer electronics standards, making them a go‑to choice for high‑end EMC test environments worldwide.

  • RF CDN-Emission Testing
  • RF Probes and Clamps
  • RF System Components and Accessories
  • GTEM / TEM Cells / Striplines / Reverberation Chambers
  • Antennas
  • Compact Generators
  • Magnetic Fields
  • Amplifiers - Solid State
  • RF Immunity Test Systems
  • RF CDND-Differential Mode
  • RF CDN-Common Mode
  • RF CN and Transformer
  • RF HV-AN/ISN
Learn More
AR (Amplifier Research) – Brand Overview
AR Banner

AR is globally recognized for its high‑power, high‑reliability RF and microwave amplifier technologies. Their focus includes solid‑state amplifiers, EMC test systems, and advanced RF solutions used across aerospace, defense, automotive, wireless, and commercial EMC labs. Key strengths of AR include:

  • RF | Microwave | Solid State Amplifiers
  • High-Performance Antennas
  • EMC and Wireless Test Systems
  • Multi-tone test systems
  • Field measuring equipment
  • EMC test software | EMC & RF test accessories
Learn More
NSI-MI Technologies – Brand Overview
SNI-MI SNF

NSI-MI Technologies delivers advanced antenna measurement solutions for aerospace, defense, satellite, wireless, and more. Our expert team manages design through integration, supported by a global service network long after delivery. Whether you need a turnkey system, precision component, or optimized instrumentation, we provide RF measurement solutions with unmatched performance, accuracy, and quality.

Your global partner in RF test and measurement.

  • Near-Field Systems
  • Far-Field Systems
  • RF Scene Generators™
  • Antenna Products
  • Compact Range Reflectors
  • Positioning Products
  • RF Instrumentation
  • Software Products
  • Radar Cross Section
  • Test Services