IEEE 802.15.4c-2009

802.15.4c-2009 is a technical amendment to the 802.15.4 family that defines an alternative physical layer extension for selected Chinese radio bands, including 314-316 MHz, 430-434 MHz, and 779-787 MHz. In the field of communication, networking and broadcast technologies, it helps support low-power wireless operation in these bands with more region-specific physical layer requirements. As a superseded standard, it remains relevant for reference, legacy compliance, and design documentation.

Overview of 802.15.4c-2009

This specification extends the 802.15.4 baseline with additional physical layer options aimed at Chinese frequency allocations. Its focus is on how devices may transmit and receive in the 314-316 MHz, 430-434 MHz, and 779-787 MHz bands, rather than on higher-layer networking behavior. For engineers and procurement teams, 802.15.4c-2009 provides a clear technical reference for evaluating radio design choices, regional compatibility, and conformance against the intended band plan.

Typical use cases

802.15.4c-2009 is typically used where short-range, low-power wireless devices need to operate in the specified Chinese sub-GHz bands. That may include sensor networks, meter reading equipment, industrial monitoring nodes, and other embedded radio systems that depend on regional spectrum support. It is especially relevant when selecting transceiver hardware, setting up compliance testing, or documenting wireless designs that must align with the alternative physical layer requirements in the amendment.

Why it matters

For organizations working with regional wireless equipment, 802.15.4c-2009 helps reduce ambiguity in design and verification. It gives teams a defined basis for checking whether a device is intended for the listed bands and whether the physical layer implementation matches the amendment’s requirements. That supports more consistent product development, clearer compliance review, and better control over technical risk when maintaining or sourcing legacy 802.15.4-based solutions.

• Alternative PHY extension for selected Chinese bands
• Sub-GHz operation in 314-316 MHz, 430-434 MHz, and 779-787 MHz
• Relevant to low-power wireless device design and testing
• Useful for legacy compliance and technical reference
• Superseded status for historical and documentation use