I would like to ask everyone, I have a Haiyun Tong HD766. The analog direct-frequency repeater works fine, the digital direct-frequency repeater works fine, and the local digital repeater (hotspot box) transmits fine, but the reception is intermittent and very poor, making it impossible to hear clearly. When using K5 spectrum mode and 878 frequency scanning, the frequency deviation is not significant. What settings should I use to enable normal digital repeater operation?