2006Video Assist and Video Accessories forum
Extending infrared remote control signals to a recorder using fiber optic cable
20 years old. Gear and prices may have changed since.
What the thread found
- Optical audio cables designed for home theater systems can be repurposed to transmit infrared signals from a remote control to a recorder by carefully removing the bulky connector ends and positioning them near the transmitter and receiver.
- Passive fiber optic solutions work better with higher-power infrared LEDs; weak transmitters using coin cell batteries may struggle to transmit through the cable with sufficient intensity.
- Photosensors used in receiver designs must be rated for the infrared spectrum range rather than visible light, as standard photocells peaked in the visible spectrum show poor sensitivity to infrared wavelengths.
- The receiver circuit must pass the 36-44 kilohertz data carrier frequency used by infrared remote systems without distortion for proper operation.
- Modifying a remote control by replacing its infrared LED with one having a wider viewing angle reduces transmission distance due to the same power output being spread over a larger area.
- Active infrared extenders exist but require external power supplies and additional components, making them less suitable for portable sled-mounted applications.
Depends on
- The feasibility of fiber optic signal transmission depends heavily on the specific power output characteristics of the infrared LED in the remote being used.
- Optical cable solutions have not been confirmed as successfully implemented in the thread; suggestions are based on theoretical possibility rather than tested results.
- Home theater infrared repeater systems designed for stationary installations may not be practical for mobile sled use due to power and component requirements.
- The specific recorder model and its infrared receiver specifications are not mentioned, affecting compatibility assessment.