Skip to main content

Table 5 An overview of the extra restrictions on the recently added frequency bands for SRDs in the 874 to 876 MHz and 915 to 921 MHz range [32]

From: Impact of EU duty cycle and transmission power limitations for sub-GHz LPWAN SRDs: an overview and future challenges

Nr. Start freq. (MHz) End freq. (MHz) Category Other restrictions
1 874 874.4 Non-specific short-range devices Only available for data networks. All devices must be controlled by access points Maximum bandwidth of 200 kHz. APC required, alternatively other mitigation techniques with at least an equivalent level of spectrum compatibility
2 917.4 919.4 Wideband data Only available for wideband SRDs in data networks. All devices must be controlled by access points. Maximum bandwidth of 1 MHz
3 916.1 918.9 RFID Interrogator transmissions at 4 W e.r.p. are only permitted within the four channels centered at 916.3 MHz, 917.5 MHz, and 918.7 MHz. Maximum bandwidth of 400 kHz
4 917.3 918.9 Non-specific short-range devices Only available for data networks. All devices must be controlled by access points Transmissions only permitted within the bands 917.3–917.7 MHz and 918.5–918.9 MHz. Maximum bandwidth of 200 kHz. APC required, alternatively other mitigation techniques with at least an equivalent level of spectrum compatibility
5 917.4 919.4 Non-specific short-range devices Only available for wideband SRDs in data networks. All devices must be controlled by access points. Maximum bandwidth of 600 kHz