ISED RSS-247

ISED RSS-247 is a Radio Standard Specification issued by Innovation, Science and Economic Development Canada (ISED). It defines the certification requirements for license-exempt radio devices operating in the 902–928 MHz, 2.4 GHz, and 5 GHz bands using frequency hopping, direct sequence, or digital modulation techniques.

Scope and Application

RSS-247 applies to:

• Digital Transmission Systems (DTS)

• Frequency Hopping Systems (FHS)

• Licence-Exempt Local Area Networks (LE-LAN)

Applicable frequency bands:

• 902–928 MHz

• 2.4 GHz: 2400–2483.5 MHz

• 5 GHz: 5150–5850 MHz (UNII-equivalent sub-bands)

Covered technologies:

• Wi-Fi (802.11a/b/g/n/ac/ax)

• Bluetooth Classic and BLE

• Zigbee (2.4 GHz and sub-GHz)

• Other ISM-band communication systems

Key Technical Requirements

902–928 MHz Band

• Digital and frequency hopping modulation allowed

• Subject to maximum power and hopping/channel requirements defined in RSS-247 and RSS-Gen

2.4 GHz Band (Section 5)

• Max conducted output power: 1 W (30 dBm)

• Bandwidth: ≥ 500 kHz for DSSS and digital modulation

• FHSS systems: ≥ 75 channels recommended; reduced limits apply if fewer channels are used

Emission and Bandwidth Limits

• Occupied bandwidth must match the declared channel width

• Detailed out-of-band and spurious emission limits are defined in RSS-Gen

Certification and Compliance

Devices subject to RSS-247 must be:

• Certified by ISED Canada or via a recognized TCB under a Mutual Recognition Agreement (MRA)

• Tested for output power, bandwidth, spurious emissions, and DFS behavior (if applicable)

Requirements include:

• Test report and Technical Brief

• Labeling and compliance with administrative rules under RSS-Gen

• Display of the ISED Certification Number

Note: RSS-247 Issue 3 was published in August 2023. A 6-month transition period allowed applications under Issue 2 until early 2024.
As of 2025, Issue 4 is under public consultation. Issue 3 remains the valid version for certification until further notice.