AMS-8500 Antenna Measurement System

AMS-8500 Antenna Measurement System

ETS-Lindgren's AMS-8500 Antenna Measurement System is a turnkey solution for making compliant Over-The-Air (OTA) performance measurements.

ETS-Lindgren's AMS-8500 Antenna Measurement System is a turnkey solution for making compliant Over-The-Air (OTA) performance measurements. This system is ideally suited for automated measurement of antenna performance of wireless devices, and devices with embedded wireless functions as well as traditional antenna pattern measurements for passive antennas. The AMS-8500 system is fully configured to perform both R&D and type approval measurements for transmit power and receiver performance of wireless devices in accordance to the CTIA Over-The-Air (OTA) test plan. The system can also be used to perform traditional passive antenna measurements to obtain more generic antenna properties. Our system packages offer you a choice of components to fit your custom testing needs.

The system is designed as a general platform to support testing various wireless devices at far-field test distances. It supports far-field measurements at a separation distance of approximately 4.9 m (16 ft). The measurement antenna allows testing from 690 MHz to 10 GHz. Extension to higher frequencies is also achievable via optional antennas.

5G FR1 Over-The-Air (OTA) test solutions are now available! ETS-Lindgren offers a turnkey package which will enable support for 5GNR SISO non-standalone [NSA] and/or standalone [SA] testing in the FR1 band.

Key Features
  • Fully-compliant for CTIA Over-The-Air (OTA) Testing for Wireless Devices
  • Passive Antenna Measurements
  • Full WiFi 7 test solution available (Note: requires WiFi 6E measurement package)
  • Frequency Range:
    • 690 MHz to 6 GHz (Standard)
    • 400 MHz to 6 GHz (Optional)
    • 690 MHz to 10 GHz (Optional)
  • Modular High Performance Shielded System
  • Multi-Axis Positioning System (MAPS) for High Resolution 3D Pattern Testing
  • Path Length 4.9 m
  • Easy Calibration by User
  • EMQuest Data Acquisition and Analysis Software
Product Details
Product Features

Rectangular Chamber

The AMS-8500 is a rectangular chamber designed to operate down to 400 MHz, with the upper frequency limit of the chamber only limited by the dual-polarized measurement horn antenna; the standard measurement antenna used in AMS-8500 has an upper frequency range of 6 GHz. Additionally, this series of anechoic chambers is designed to have better than 25 dB in Quiet Zone (QZ) reflectivity.

Multi-Axis Positioner System (MAPS)

ETS-Lindgren's Multi-Axis Positioner System (MAPS) is designed with adjustment rails to position the Antenna Under Test (AUT) to the center of rotation axes (both in Theta and Phi axes) for accurate antenna measurements. The MAPS rotates the device under test (DUT) around two orthogonal axes for full spherical coverage. To minimize measurement errors, the vertical support structures are constructed from low-density dielectric material to provide RF transparency during the measurement. MAPS are available in three different models including Light Duty, Medium Duty, and Heavy Duty depending on user specific requirements. Each one of the models has user defined angular resolution with the minimum resolution of 0.1 degrees.


AMS-8500 system packages can be incorporated with a variety of RF instrumentation for user specific measurement requirements. The system can be configured to perform generic antenna measurement by using a multi-channel Vector Network Analyzer (VNA). A spectrum analyzer or power meter can be used as the receiver instrument for active antenna measurements. For transceiver measurements, a digital package Communication Analyzer can be added to provide transceiver communication link measurements for sensitivity and bit error rate tests.

EMQuest Data Acquisition and Analysis Software

ETS-Lindgren's EMQuest Antenna Measurement Software supports data acquisition in either the great circle-cut or conical-cut test sequence to perform full spherical antenna measurements for Instruments Under Test (IUTs) in either transmit or receive mode. Post-processing calculations include derivation of antenna half-power beam-width, directivity, gain, radiation efficiency, total radiated power, and total optional isotropic sensitivity. AMS-8500 also provides derivation of CTIA specific near-horizon partial radiated power and near-horizon sensitivity. Advanced graphic capabilities allow acquired data to be displayed in a variety of 2D and 3D formats. Tabular data can be exported to Microsoft Excel spreadsheets. Reports can be exported to PDF files or saved in RTF format for import to Microsoft Word.


ETS-Lindgren provides custom field installation of the chamber, positioner, antenna, rack with RF cable circuitry, and the antenna measurement software.


ETS-Lindgren provides training on operation of the positioner device, controller, and the test and measurement software. The training package will also provide a generic theoretical review of antenna measurement principles.

Physical Specifications
Shield Dimensions (L x W x H): 7.3 m x 3.7 m x 3.7 m (24 ft x 12 ft x 12 ft)
Overall Dimensions: 7.5 m x 3.9 m x 3.9 m (24.75 ft x 12.75 ft x 12. 83 ft)
Shielded Door Dimensions: 1.2 m x 2.1 m (3.92 ft x 6.83 ft)
Electrical Specifications
Frequency Range:
  • 690 MHz to 6 GHz
  • 400 MHz to 6 GHz (Optional)
  • 690 MHz to 10 GHz (Optional)
Path Length: 4.9 m
Voltage (Hz): 50/60 Hz
Shield Material: Aluminum
Product Options
  • 2G/3G Cellular SISO Test Package
  • Wi-Fi SISO Test Package
  • LTE-SISO Test Package
  • LTE-A Carrier Aggregation (2DL/1UL) SISO Test Package
  • LTE-A Carrier Aggregation (3DL/1UL) SISO Test Package
  • A-GNSS (A-GPS for 2G/3G) Test Package
  • A-GNSS (A-GPS for 4G) Test Package
  • A-GNSS (A-GLONASS for 4G) Test Package
  • Bluetooth Test Package
  • Bluetooth Low Energy Test Package
  • TD-SCDMA Test Package
  • RSE Test Package