AMS-8500
■Single In Single OUT (SISO) OTA anechoic chamber
Site description
■600 MHz -6 GHz: 7.32 m (L) x 3.66 m (W) x 3.66 m (H) ;
■To evaluate antenna gain and efficiency of DUT (passive).
■To evaluate transceiver performance of DUT (TRP/TIS).
■Maximum load capacity is 10 kg.
AMS-8923
■Single In Single OUT (SISO) OTA anechoic chamber
■Multi In Multi OUT (MIMO) OTA anechoic chamber
Site description
Can be used for SISO OTA test, too. (Vertical antenna ring)
Multi In Multi OUT (MIMO) OTA Anechoic Multi-Probe Chamber(Horizontal antenna ring)
■600 MHz - 6 GHz: 5 m (L) x 5 m (W) x 5 m (H);
■23 Sensor Models
■Convenient for large DUTs and complex DUT cable management.
■To evaluate antenna gain and efficiency of DUT (passive).
■To evaluate transceiver performance of DUT (TRP/TIS).
■To evaluate MIMO OTA performance of Mobile Station.
■Maximum load capacity is 30kg.
RC Chamber
Test Plan for Wireless Large-Form-Factor Device Over-the-Air Performance
WiFi a/b/g/n ; BT ; LTE ; Cat M1 ; NB-IoT ; LTE ; WCDMA ; GSM
■The over-the-air performance of larger devices, those having a physical dimension greater than 42cm, may be evaluated using reverberation chambers.
■The exact placement of the device within the valid test volume of a reverberation chamber is not critical. This can be an advantage in some cases, for example, for large devices that may be heavy or awkward to position precisely or for devices where the exact location of the radiating element is not known because it is within a much larger chassis.
■Valid test volume boundaries shall be located at least 0.5λ at the frequency of operation from the walls, mechanical mode-stirrers, and the antennas.
Relevant information
EU Releases Exemption Guidelines on Removability and Replaceability of Portable and LMT Batteries — Multiple Product Categories Relief Granted
On July 14, 2026, the European Commission published the "Commission Guidelines to Facilitate the Harmonised Application of Provisions on the Removability and Replaceability of Portable and Light Means of Transport (LMT) Batteries" (Commission Notice C(2026) 5032 final). These guidelines aim to provide a uniform interpretative framework for the implementation of Article 11 of the EU Battery Regulat
6G Developments: Past, Present and Future
The formulation of 6G standards has entered a more concrete phase. At the 3GPP RAN Plenary Meeting held in Singapore in June 2026, the industry made progress in multiple key research areas and finalized the timeline for Release 21, which is regarded as the first standard version expected to formally define 6G.
Overview of EN IEC 61000-4-29:2026
The key focus of the 2026 edition is to address new DC power distribution environments, especially higher-voltage DC systems. It also clarifies test generator capability, duration tolerance, current limitation during short interruptions, inrush current verification, result evaluation, and test report requirements. For products using 24 Vdc, 48 Vdc, 380 Vdc, 400 Vdc, 800 Vdc, or other DC input pow