Spectrum · RF Spectrum Band
433 MHz ISM (Region 1)
433.05–434.79 MHz
An unlicensed short-range-device band designated for ISM use in ITU Region 1 under Radio Regulations footnote 5.280, widely used in Europe/Africa/Middle East for low-power telemetry, remote control, and long-range (LoRa-class) drone control-link hardware.
An unlicensed short-range-device band designated for ISM use in ITU Region 1 under Radio Regulations footnote 5.280, widely used in Europe/Africa/Middle East for low-power telemetry, remote control, and long-range (LoRa-class) drone control-link hardware.
Band facts
| Field | Value |
|---|---|
| Frequency | 433.05–434.79 MHz |
| System | Unlicensed ISM / SRD |
| Category | ISM — Industrial, Scientific and Medical |
| Band class | UHF |
| ITU region | ITU Region 1 (Europe, Africa, Middle East, former USSR) ISM designation; in the U.S. this range instead falls inside the Amateur Radio 70 cm band and is used at low power under separate FCC Part 15 provisions, not the Region 1 ISM allocation |
| Standard | ITU Radio Regulations, Article 5, footnote 5.280; CEPT/ETSI short-range device rules apply within Europe |
Why this band matters
A common long-range telemetry and control-link band for hobbyist and some tactical small-UAS control links outside the Americas, alongside the 900 MHz/2.4 GHz/5.8 GHz ISM bands used everywhere.
Sources
Standards & authorities
- ITU Radio Regulations, Article 5, footnote 5.280; CEPT/ETSI short-range device rules apply within Europe
Related in spectrum
Frequently asked
What frequency is 433 MHz ISM (Region 1)?
433 MHz ISM (Region 1) operates at 433.05–434.79 MHz. An unlicensed short-range-device band designated for ISM use in ITU Region 1 under Radio Regulations footnote 5.280, widely used in Europe/Africa/Middle East for low-power telemetry, remote control, and long-range (LoRa-class) drone control-link hardware.
Why does the 433 MHz ISM (Region 1) band matter?
A common long-range telemetry and control-link band for hobbyist and some tactical small-UAS control links outside the Americas, alongside the 900 MHz/2.4 GHz/5.8 GHz ISM bands used everywhere.