[Home](/)/[Resources](/resources)/CE RED Testing EUTesting Guide # CE RED Testing: Radio Equipment Testing Standards Complete guide to RED testing for CE marking. Learn about radio equipment testing, spectrum efficiency, and cybersecurity requirements for wireless products. Copy Link[Share on WhatsApp](https://wa.me/?text=https%3A%2F%2Fkrono-labs.com%2Fguides%2Fce-red-testing) At a glance Essential requirements 3 FAQs 5 ## RED testing overview RED (Radio Equipment Directive) testing is mandatory for any product with intentional radio transmission. The directive has three essential requirements: effective use of radio spectrum, electromagnetic compatibility, and network protection. RED testing must be performed at an accredited laboratory. From August 2025, new cybersecurity requirements also apply to radio equipment, adding secure software updates and access control to the compliance scope. ## Essential requirements ### Effective use of spectrum Radio equipment must efficiently use radio spectrum to avoid harmful interference. Testing verifies transmit power, frequency stability, and modulation characteristics. ### Electromagnetic compatibility Radio equipment must not cause harmful interference to other radio services and must have adequate immunity to interference. This is tested through EMC requirements specific to radio. ### Network protection Equipment connecting to public communications networks must not harm the network. Testing includes network compatibility and防止滥用 measures. ## Cybersecurity requirements ### Cybersecurity requirements (from August 2025) RED Delegated Regulation (EU) 2022/30 introduces mandatory cybersecurity requirements for radio equipment. This includes secure software updates, access control, and vulnerability management. ## Frequently Asked Questions ### What products need RED testing? Any product with intentional radio transmission needs RED compliance. This includes Wi-Fi, Bluetooth, Zigbee, cellular, NFC, and proprietary radio. Products that only receive radio (like GPS receivers) may have different requirements. ### How long does RED testing take? RED testing typically takes 2-5 days depending on the number of radio bands and technologies. Products with multiple radio interfaces (Wi-Fi + Bluetooth + cellular) require more testing time. ### What are the new cybersecurity requirements? From August 2025, RED equipment must comply with cybersecurity requirements including: no universal default passwords, secure software update mechanisms, vulnerability disclosure processes, and protection against unauthorized access. ### Do I need a Notified Body for RED? Most radio products can self-certify under Module A if harmonised standards exist. However, if no harmonised standard applies to your radio technology, or if you're using non-standard frequencies, Notified Body involvement may be required. ### What about products with multiple radios? Products with multiple radios (e.g., Wi-Fi + Bluetooth) need testing for each radio interface. The technical file must document compliance for each radio technology and demonstrate that they don't interfere with each other. **Disclaimer:** This page is an educational resource based on official EU sources. It is not legal or engineering advice. Always verify current directive and standard status in the Official Journal before placing any product on the EU market. 🇪🇺 CE Marking roadmap for radio equipment Every standard, document, and test that applies — free, no account required. See your free roadmap[ Want an expert to take radio equipment through 🇪🇺 CE Marking compliance for you? One consultant from Krono's compliance team takes your product from requirements to legal sale, with a fixed quote before any work starts. See compliance services](/services) Learn this properly In-depth course that teaches the full process, not just this one answer. [Start the course — $149](/courses/01-ce-marking-for-electronics-engineers)[Prefer to read? Get the book — $24.99](/books/01-ce-marking-for-electronics-engineers) Related guides * [Radio Equipment Directive complianceEverything you need to know about the Radio Equipment Directive: scope, essential requirements, testing, harmonised standards, …](/guides/red-directive-compliance) * [EMC Directive complianceComplete guide to EMC Directive (2014/30/EU) compliance: emissions, immunity, testing requirements, and harmonised standards fo…](/guides/emc-directive-compliance) * [CE certification for IoT devicesComplete CE compliance guide for IoT devices: RED, EMC, RoHS, GPSR, and cybersecurity requirements for connected products enter…](/guides/ce-certification-for-iot-devices) * [Self-certification vs Notified BodyComplete guide to CE conformity assessment: when you can self-certify under Module A, when you need a Notified Body, and the co…](/guides/self-certification-vs-notified-body)