The laboratory can provide customers with complete test services based on the self-built testing system platform, so as to ensure that the customer terrestrial digital TV products are designed in accordance with relevant standards and specifications and ensure the consistency and stability of relevant products. Currently multiple domestic enterprises, such as chip design companies and entire machine production manufacturers have completed the performance testing of other terrestrial products in our testing center.

Based on the GB terrestrial digital TV, the testing center is equipped with two experimental test platforms (source and channel). In addition, the testing center can also provide the test service related to the 3D display technology, data collection, and data analysis.

Test Service

I. GB Terrestrial Digital TV

Source test:

The signal power measurement and correction, signal quality, flatness of I/Q signals, and phase noise of the digital TV are tested.

Channel Test:

The digital TV standards, such as the TDMB, DVB-C, and CMMB are supported.

Multiple channels fading conditions are simulated, and  the size of all the fading parameters are changed, including the attenuation, phase, delay, Doppler velocity, and frequency and direction. The dynamic fading is simulated.

By measuring the C/N value of all channels in the terminal, the interference immunity of the terminal can be assessed.

II. 3D Display Technology

3D display test items (subjective):

1. 3 D contrast
2. 3 D brightness uniformity
3. 3 D color uniformity
4. White chrominance, color uniformity, and interocular chromatic difference
5. Interocular crosstalk (crosstalk between the left and right eyes)
6. Viewing angle
7. Flashing
8. Comfort

III. Data Collection and Analysis

The RF signal, IF signal, and baseband signal can be collected based on customers’ requirements. Playback of the collected signals is performed in the laboratory, so as to simulate the state of the outfield signals at that time. In addition, related analysis (spectrum, signal power, and multipath) can be carried out for collected signals. The specific items analysis can be customized based on customers’ requirements.