ZeroNoise Manuals & Downloads

Download ZeroNoise user guides and reference documents for motorsport communications. Harris Race Radios™ supports customers in New Zealand and Australia with equipment matching, setup, installation, fault-finding and repairs. We use what we sell. We fix what we sell.

Choose the instructions for your exact system

The Fearless WW guide is for the Wired-Wireless system, not a universal manual for earlier Fearless Digital or other ClearVoice versions. The supplied Pit-Link guide is headed “PIT-LINK GSM” and describes Bluetooth, Wi-Fi and other connectivity functions. Confirm the model and revision on your unit before following wiring or firmware procedures. A document title alone does not establish mobile-network compatibility.

User manuals

• Fearless WW User Guide (PDF, 3 pages) — wired and wireless operation, pairing, compatible WW equipment, helmet battery management, audio settings, Stage/Road and Custom modes, radio and camera connections, app control and firmware procedures.
• Pit-Link User Guide, headed PIT-LINK GSM (PDF, 3 pages) — installation, power and interface wiring, audio settings, Bluetooth, radio, camera, Wi-Fi, CAN-bus and firmware procedures. Match the guide to your exact unit.

Catalogue and technical background

These documents provide supporting range and development information. They do not replace the operating instructions for your exact model. Historical catalogue specifications and prices are not current Harris Race Radios™ offers.

• ZeroNoise Communication Devices — catalogue extract (PDF, 10 pages) — rally and circuit system architecture and range information.
• ZeroNoise Fearless and Pit-Link — Racing Force technical background (PDF, 4 pages) — background on the electronics and product development, dated 2021.

Expert setup, fault-finding and repairs

Clear crew speech starts with appropriate helmet electronics, microphone positioning and system settings. Start with a comfortable listening volume: the manufacturer warns that high amplifier volumes can damage hearing. Follow the exact-model instructions for pairing, power, interface wiring and firmware updates.

Rex Harris is a degree-qualified radio electronics engineer, RSM Approved Radio Engineer ARE127 and Approved Radio Certifier ARC127, with motorsport communications experience dating from 1975. Aaron Harris brings racing and professional race-engineering experience. Tell us your intercom, helmet and radio models so we can help identify suitable connections and resolve setup or audio problems.

Use our intercom setup guide and motorsport communications services and technical knowledge guide, or contact our team for manual, setup and repair enquiries.

Shop ZeroNoise

Browse ZeroNoise intercoms and helmet kits, including the Fearless Digital and Fearless ClearVoice. Confirm the correct manual for the product version you own.

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