Scope of annex
This annex covers frequency bands and regulatory as well as informative parameters recommended exclusively for alarm systems including social alarms and alarms for security and safety.
The sub-bands below are intended for the following applications:
Alarms in sub-bands a), c), d), e);
Social Alarms in sub-band b).
| Frequency Band | Power / Magnetic Field | Spectrum access and mitigation requirements | Modulation /occupied bandwidth | ECC/ERC Deliverable | ETSI ENs | Notes | |
|---|---|---|---|---|---|---|---|
| a | 868.6MHz - 868.7MHz |
10 mW e.r.p. | ≤ 1.0 % duty cycle | ≤ 25 kHz | EN 300 220, EN 303 406 | The whole frequency band may also be used as a single channel | |
| b | 869.2MHz - 869.25MHz |
10 mW e.r.p. | ≤ 0.1 % duty cycle | channel spacing = 25 kHz | EN 300 220 | Social Alarms | |
| c | 869.25MHz - 869.3MHz |
10 mW e.r.p. | ≤ 0.1 % duty cycle | ≤ 25 kHz | EN 300 220, EN 303 406 | ||
| d | 869.3MHz - 869.4MHz |
10 mW e.r.p. | ≤ 1.0 % duty cycle | ≤ 25 kHz | EN 300 220, EN 303 406 | ||
| e | 869.65MHz - 869.7MHz |
25 mW e.r.p. | ≤ 10 % duty cycle | ≤ 25 kHz | EN 300 220, EN 303 406 | ||
Technical parameters also referred to in the
harmonised standard
No information
Frequency issues
Sub-band b)
Social alarms are covered by a specific subset of ETSI EN 300 220.