What is WiFi calibration? As the name implies, it is to detect the parameters of the WiFi signal of the product through the WiFi calibration equipment and then calibrate and debug the product to a certain index range through the production testing software. The main parameters of WiFi include: frequency deviation (FreqErr) of WiFi signal sent by the product, Power of WiFi signal (Power), vector frequency error (EVM) of WiFi signal, spectrum template (Mask) of WiFi signal,etc.Referto the following table for index parameters:
When the ONU initializes the software and burns the program, the internal parameters are default values. The actual use of the product needs to be matched with the various components of the product. The first step of the product PCBA after DIP is to calibrate the functional parameters of the product, such as the WiFi function:
After the product is powered on, it is placed on the test fixture, and the RF radio frequency wire on the fixture transmits the WiFi signal of the product to the WiFi calibration device. The production testing software uses the network cable to read the product information in real time and the WiFi calibration device to receive the measured signal, and then the product parameters are adjusted within the range through the automatic judgment of the production testing software. Finally, the debug data is written and saved to flash. WiFi calibration is completed.
The above is a brief explanation of 2.4GWiFi calibration by Shenzhen HDV Phoelectron Technology Co., LTD. In order to make customers have a better experience of the products, our company has set up a professional testing process. At present, our hot products cover: AC ONU / communication ONU / intelligent ONU / box ONU / double PON port ONU, OLT series, transceiver, SFP module, SFF module, etc. Welcome to the product consultation.