2012Video Assist and Video Accessories forum
Wireless HDMI transmitters for professional video and consumer applications
14 years old. Gear and prices may have changed since.
What the thread found
- Older wireless HDMI transmitters had delays around 500 milliseconds, while newer models typically achieve 1-5 milliseconds of latency.
- Many consumer-grade wireless HDMI systems have limited range, typically 30 feet or less, though some professional models claim 100-300 feet with clear line of sight.
- Canon 5D Mark II cameras experience approximately 13 seconds of signal re-handshaking delay when the record button is pressed, causing the HDMI output to drop from 1080p to 480p resolution.
- Canon 7D cameras maintain consistent resolution when recording begins, making them compatible with wireless HDMI systems without the reconnection delay seen on 5D models.
- Most consumer wireless HDMI devices operate on 5V power via USB, while professional solutions may require AC power or D-Tap connectors.
- Wireless HDMI systems operating in the 5.1-5.9 GHz frequency band commonly suffer from reduced range and reliability when located near lighting equipment or in RF-heavy environments.
- Lilliput external monitors exhibit slow menu response times, limited aspect ratio options, and incompatibility with many camera formats.
- External monitors and wireless transmitters can generate RF interference that degrades receiver sensitivity and effective transmission range.
- Uncompressed wireless HDMI solutions require converters like the Decimator 2 or AJA units to translate between HDMI and HD-SDI formats, adding significant cost.
- Reconnection time after signal loss is a critical issue for some wireless systems, with delays up to 7 seconds or more at distance before stable video returns.
Depends on
- Information from 2012, technology has advanced significantly since then.
- Testing was performed in limited conditions and may not represent all real-world scenarios.
- Claims about range and performance vary by model and testing environment.
- Many product links and availability information are outdated.
- Reconnection times and interference issues are reported anecdotally without systematic comparison.
- Professional wireless HDMI solutions discussed are high-cost and require additional format conversion equipment for HD-SDI workflows.