BLE Voice

Related Questions How does the KT6368A Bluetooth chip apply for FCC certification ? What is the BQB certification process for the KT6368A Bluetooth chip? What test items are required for the KT6368A Bluetooth chip to pass the KC certification ? This article focuses on the KT6368A Bluetooth chip passing certifications such as FCC, BQB, KC, and CE . Since the standard chip does not have a test mode , a special test chip needs to be purchased and the corresponding firmware burned. After burning, replace the original chip to conduct the test. If the certification fails, it is mostly due to hardware problems . If you can't solve it, you can contact us for assistance. The details are as follows: Chip Purchase If you want to conduct Bluetooth certification (such as BQB) or radio frequency parameter testing (such as FCC, including CE, KC [South Korea], NCC [Taiwan] and other wireless product performance tests ), you must contact us to purchase a special test chip. Chip Function Limitat...

  I. Problem Description The testing agency Luxshare reported that the sample sent by the customer failed the wireless KC (Korea) test , mainly in the following two aspects: The receive spurious of the Bluetooth part does not meet the standard. The Bluetooth transmit power is low. The testing environment includes the customer's PCBA motherboard , and a power supply board is not within the shooting range. II. Detailed Handling Process 2.1 Testing with Power Supply Only to the Bluetooth Part Receive Spurious Test : Set the FCC 's PC tool to "RX" and click send. The test result shows normal. Transmit Power Test : Set the FCC's PC tool to "TX" and click send, with the channel set to 0. The test result is normal. Generally, only the upper limit of transmit power is concerned. The test result this time is 3dB, which is good. However, many certifications require that the transmit power should not be lower than - 3dB. 2.2 Testing with the Whole Board Powered...