Detailed Answer
Interference troubleshooting: 1. frequency conflict (433MHz with walkie-talkies/other wireless devices); 2. harmonic interference (poor-quality power supply); 3. antenna radiation direction. Solutions: 1. switch frequency band (470MHz is cleaner); 2. add filters to the receiver; 3. adjust antenna direction/position; 4. check grounding. LDER's 470MHz solution has less interference; Xingjia can switch bands. Contact manufacturer technical support for interference issues.
| Causes | Band/harmonics/antenna |
| Fix | Change band/filter |
| LDER | Less interference at 470MHz |
Note:Record interference symptoms to help the manufacturer diagnose.