GAOTek provides a large selection of high-quality and cost-effective Bit Error Rate (BER) testers. GAOTek’s BER Testers are easy-to-use devices that are vital for validating or certifying digital designs. These devices let users quickly and accurately test cables and diagnose signal problems in the field. These devices provide easy validation and adjustment of transceivers, so they can check and produce a variety of bit patterns. The BER testers are designed to measure the number of errors in a data transmission system. A data transmission system is an equipment that passes the data from one location to another, takes in data and outputs the data, or transforming it in the process. The number of errors can be reported as a simple count of bits in error or as a ratio of bits in error to total bits checked. This ratio is commonly referred to as the Bit Error Rate. Given the advanced features and functions, GAOTek’s effective and reliable BER testers are the perfect solution for any telecommunication technician or engineer.


GAOTek’s BER Testers are widely used in testing communications links, radio telemetry systems and synchronous serial communications devices. The testers generate a test data stream that is passed through the system and then check that data stream against a reference data stream and detects any errors introduced by the system under test. GAOTek’s BER Testers detects bits in error and missed bits. The testers can measure bit error rate by transmitting a pseudo random bit sequence, and comparing the received sequence with an error-free replica generated at the receiver. The BER testers are basic tools for digital communications measurements.


GAOTek’s BER Testers feature self-check and keyboard testing, extensive error and alarm generation, detection and indication. These devices offer smart menu navigation and have a large color LCD display allowing test results to be displayed clearly. Test results can be downloaded or printed via included software. The BER Testers are cost-effective devices that are well-constructed and very light in weight. GAOTek’s BER Testers are ideal devices for fast problem resolution, E1 PCM line access, maintenance and acceptance testing.

Applications and Industries

The BER Testers provide the high-performance and accurate design verification, compliance, characterization and manufacturing test of high-speed communication ports for computer, components, line cards, communication industry, and storage.

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ID: A0030001tek

The E1/Datacom BER Tester is a compact, portable tester designed for E1/Datacom testing with a unique IP PING testing functionality, making it an ideal tool for front line field technicians and engineers.


This pocket size lightweight Handheld E1 Bit Error Rate Tester is designed for communication tool for the deployment and verification of E1 networks

ID: A0020004tek

This Data Transmission Analyzer with E1/T1 BER Tester is a handheld communications test set which can be used for E1 digital circuit, DDN and error bit test for data communication system with the transport fiber