Applicable models:For quansheng uvk5/k6 1. The kit is a DIY product.Corresponding hands-on soldering ability is required. Please ask professionals to do this. 2. The finished product effect is closely related to objective factors such as equipment, personal welding technology, firmware, etc. The kit cannot guarantee the finished product effect, please forgive me. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Instructions: The soldering pad has been tinned, please remove the chip on the machine Align well, directly heat the soldering pad with a soldering iron to tin, so that the tin is connected to the soldering pad 2,5,6,8 The antenna is connected to in+, and in-, GND is connected to the ground wire of the machine circuit. Reset and audio are connected to the machine as shown in the picture Flash cec firmware to use Basic operation instructions: F+0 enters the radio The following operations are all instructions in the radio mode Short press F to switch shortwave AM and FM Long press F to switch single sideband Short press 0 to select the frequency band Short press x to adjust the frequency increase or decrease step Short press 8 to enter the frequency EXIT to exit Material:PCB Colour:Green Package Contents: 1x Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.