Short rang device
Frequency bands
Short Range Device (SRD)
A short-range device (SRD) is a radio-frequency transmitter device used in telecommunication for the transmission of information, which has low capability of causing harmful interference to other radio equipment.
Short-range devices are low-power transmitters typically limited up to 500 mW effective radiated power (ERP) or less, depending on the frequency band, which limits their useful range to few hundred meters, and do not require a license from its user.
- License free bands
- Different frequency bands with different regulations
- Which band fits best your application
- Limitations in max TX power, Duty cycle and channel spacing
Source: EN 300 220 and EN 300 440
If you want to read more find here the whole Product Guide.