The default software version that comes with the product does indeed have this issue. When I purchased it, I contacted customer service and requested the latest v0.17 firmware for the 8600 Pro to upgrade to. According to the firmware documentation, "Update content: 1: Optimize frequency transmission, no return of receiving frequency," which should address this specific problem. I recommend contacting the vendor to obtain the latest firmware or provide you with an email address so they can send it directly.
闽ICP备2021006864号-7
闽公网安备35020602002794号