A baby monitor is essentially a radio transmitter on a fixed frequency that transmits a FM signal.
Baby monitors transmit in the 48-50 MHz range. Common baby monitor channels:
49.300
49.830
49.845
49.862.50
49.845
PMR446 is a European standard licence-free radio service utilising 8 (12.5khz spaced) channels in the 446 Mhz band. PMR is license exempt in Ireland and other EU states. The first country which introduced these frequencies for licence-free use was Ireland and it did so on 1st April 1998. The United Kingdom introduced PMR446 service in [...]
Exemptions from licensing are normally established when there is no requirement to manage the specific spectrum band and where the risk of harmful interference is negligible.
The following is a non-exhaustive list of license exemptions.
Exemptions
Radio Type
Description
Exemption Order
ComReg Document
Other Information
Short Range Devices (SRD)
The vast majority of licence exempt equipment falls under this category. [...]