Detailed Answer
In China, micropower short-range radio equipment must have transmit power ≤10 mW (e.r.p.), and industrial remote controls typically operate at 0.1–10 mW. The LDER LD series transmit power complies with national micropower standards, achieving a 200 m range with the 470MHz band; the XINGJIA series is likewise compliant. Higher power is not necessarily better: more power means more battery drain and more regulatory restrictions. Reasonable antenna design and receiver sensitivity are what truly guarantee communication quality.
| Standard | ≤10 mW |
| Actual | 0.1–10 mW |
| LDER | 470MHz / 200 m |
Note:Over-power equipment is used in violation of regulations — be cautious when buying.