EN 300 220 is a core standard developed by the European Telecommunications Standards Institute (ETSI). It applies to short-range devices (SRD) operating at frequencies between 25 MHz and 1000 MHz, with power ≤500 mW. Typical examples include smart home sensors, industrial remote controls, and RFID tags. The standard ensures spectrum compliance and is a harmonized standard under the RED Directive (2014/53/EU).
Purpose:Controls the device’s transmission power to prevent interference with other bands.
Limits:
433 MHz band: maximum e.r.p. 10 mW
868 MHz band: maximum e.r.p. 25 mW
Method:
Devices with integrated antenna: measured via radiated testing in an anechoic chamber.
Devices with antenna port: measured via conducted testing, assuming 100% antenna efficiency.
1. Purpose:Limits power distribution within a given bandwidth to prevent spectrum overload.
2. Limit:Typically ≤10 mW per 100 kHz (e.g., 868 MHz band).
3. Application:Especially important for narrowband modulation (e.g., LoRa, FSK).
1. Purpose:Ensures the transmission frequency stays within the specified band.
2. Limits:
a. ±100 ppm at normal temperature
b. ±200 ppm at extreme temperatures
3. Conditions:Tested between -20°C and +50°C.
1. Purpose:Suppresses unwanted emissions outside the operating band.
2. Limits:
a. 30 MHz to 1 GHz: ≤ -54 dBm (e.r.p.)
b. Above 1 GHz: ≤ -36 dBm (e.r.p.)
c. Special bands (e.g., aviation): ≤ -80 dBm
1. Purpose:Limits channel occupancy to improve spectrum sharing.
2. Limits:
868 MHz band: duty cycle ≤1% or dwell time ≤0.4 s per channel
1. Purpose:Verifies receiver stability under strong interference.
2. Limit:The receiver must continue to function when interference strength reaches 94 dBμV/m.
1. Radiated tests: conducted in anechoic chamber
2. Conducted tests: use 50 Ω load
3. Temperature: 15°C–35°C
4. Humidity: 30%–60% relative humidity
1. Integrated antenna: e.r.p. tested via radiated method
2. External antenna port: conducted power tested; limit converted to e.r.p.
3. Extreme conditions: repeat power and frequency tests at ±15% supply voltage and at temperature extremes
JJR is a compliance testing laboratory offering EN 300 220 and other CE certification testing services. Contact us for more information.
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