| Radio transmitters operated in the long wave range |
30 kHz to 300 kHz |
| Welding devices |
up to a few hundred kHz |
| Electrosurgery systems |
some hundred kHz |
| clinical MRI devices use radio frequency fields in addition to static and intermediate frequency fields |
63 MHz |
| Mobile telephony: GSM 900 |
about 900 MHz |
| Mobile telephony: GSM 1800 |
about 1800 MHz |
| Mobile telephony: UMTS 2100 |
about 2100 MHz |
| anti-theft devices |
Ranging from some tens of Hz to a few GHz depending on the type of system |
