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2004Video Assist and Video Accessories forum

Video transmitter options for on-set video assist, comparing microwave and 2.4 GHz systems

22 years old. Gear and prices may have changed since.

What the thread found

  • The Modulus 3000 operates on TV band frequencies and allows reception on any standard TV tuner, making it useful when multiple departments need their own monitors on set.
  • Microwave transmitters like those from Coherent and Marell offer rock-solid performance with minimal interference between channels.
  • Low-cost 2.4 GHz Chinese transmitters provide a full transmitter-receiver kit for around $300-340 but suffer from signal dropouts when moving, especially around corners or through walls, because the short wavelengths travel in straight lines rather than diffusing around obstacles.
  • Upgrading receiver antennas, such as adding a 7-8 dB gain antenna mounted at height, significantly improves range and reliability of 2.4 GHz systems.
  • Diversity receiver systems with multiple antennas provide more stable reception than single-antenna setups.
  • Handheld monitoring solutions allow directors and other crew to receive video independently of main monitor setups, reducing dependence on a single display.
  • Daisy-chaining a TV band transmitter to repeat a microwave signal allows the use of larger antennas on monitors while maintaining coverage across set departments.

Depends on

  • 2.4 GHz systems can interfere with WiFi networks in the area, reducing both wireless signals' strength.
  • The inexpensive 2.4 GHz transmitters require constant signal input to prevent failure and may fail unexpectedly after extended use.
  • Compatibility between some brands (such as Marell and MK-V) appears proprietary, potentially limiting flexibility in mixing equipment from different manufacturers.
  • Specific pricing and model availability mentioned reflects early 2000s market conditions.
  • No field reports were provided comparing all systems under identical production conditions.

Gear in this thread

Moduluscatalog

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