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Tascam CG-1800 Master Clock Generator
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Tascam CG-1800 Master Clock Generator

Product Code: 238710

The Tascam CG-1800 is designed for small to large-scale video/audio synchronization systems.

£1,354.00 (INC VAT)
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  • Description
  • Reviews

The Tascam CG-1800 is designed for small to large-scale video/audio synchronization systems. The crystal oscillator is the heart of the clock generator. In CG-1800, an OCXO (oven-controlled crystal oscillator) is used for its high precision and the fact it is not influenced by the temperature of the environment. Boasting a clock frequency precision of 0.01 ppm1, which exceeds that of a TCXO (temperature-compensated crystal oscillator), this unit is key in the creation of high-precision synchronization systems - with word output frequency stability of ±0.005ppm or less per day. External clock jitter is reduced using an original TASCAM circuit design that incorporates a high-performance video clock generator engineered with a FPGA2 and a PLL (phase-locked loop) circuit with a discrete filter. This enables a stable clock signal to be provided to the video/word outputs - improving system stability. The glitch-free relock circuit prevents noise and skipping sounds caused by master clock dropouts. In addition to (12) word clock outputs and (4) video outputs, the digital outputs include (2) AES3/AES11 and (2) S/PDIF outputs, making this unit useful for large-scale audio/video synchronization systems and a wide variety of other applications. Of the (12) word outputs, two also support x2Fs, x4Fs and 256Fs output - enabling them to be used in systems with ProTools and other DAW software. The CG-1800 has multiple functions to support maintenance and the identification of issues


  • Internal clock uses a high-precision OCXO (oven-controlled crystal oscillator) that is not influenced by the temperature of the environment
  • External input connector that supports 10 MHz, allowing creation of systems with even higher precision
  • Glitch-free relocking circuit prevents noise and skipping during clock dropouts and recovery
  • Numerous output connectors, including twelve Wordclock outputs, enabling the use in large-scale audio synchronization systems
  • Supports input and output of a variety of video signal formats, including NTSC, PAL and HD Tri-level
  • AES3 and AES11 signals can also be used for external master clock input sources
  • Analyzer function that can measure output device termination
  • Optimal levels can be provided to other devices by adjusting Wordclock output levels
  • Self-calibration function using an external oscillator (Atomic/GPS 10MHz, GPS PPS) (requires a separate PPS-output 10 MHz oscillator with a built-in GPS antenna)
  • Wordclock performance up to 192 kHz
  • 0.1% pull-up/down for 24F (Film) and 29.97F (NTSC), and 4% pull-up/down for 24F (Film) and 25F (PAL)
  • Up to four system settings can be saved to buttons for recall, and saved settings can be imported and exported via USB
  • Durable Amphenol manufactured nut-coupling BNC connectors
  • Independent circuit boards for each connector prevents contact failures due to twisting
  • Panel-lock switch can be used to prevent inadvertent changes to unit operation
  • 128 x 64-pixel organic EL display with a wide viewing angle
  • Firmware updates possible using the USB port
  • 1U rackmount
  • RoHS-compliant
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