Denecke JB-1 Syncbox Timecode Generator

Rent for $25.00 per day


The Denecke JB-1 Syncbox Timecode Generator is one of the most compact and lightweight sync boxes currently available. It will  generate, read, and jam-sync timecode, offering six preset and two user-selectable output levels.



  • Generates, reads, and jam syncs to all standard frame rates, including 23.976
  • Senses and automatically jam syncs to the incoming timecode rate
  • Single, bidirectional BNC input/output
  • Six preset and two user-selectable timecode output levels
  • Jam from an external timecode source, or set timecode internally and use as a standalone generator
  • Large timecode readout — sunlight-readable display with backlight
  • Runs on an internal, replaceable LiPo cell or using an external power connection via micro-USB connector
  • Compact and lightweight at 2 oz
  • Advanced Temperature Compensated Crystal Oscillator (TCXO) eliminates the need to jam more than once per day
  • Cross jam regardless of incoming frame rates
  • Automatic jam sync capability
  • Updatable via micro-USB for both Mac and Windows
  • Signal status and low/dead battery LED display


Input/Output Connector Type: 1 x Bidirectional BNC

Input: -15 dB at 4.7 kOhms

Output: 0.00 to 2.40 V, 6 x Preset levels, 2 x User-programmable levels

Other Connectors: 1 x Micro-USB, for battery charging and updates

Clock: TCXO Crystal: ± 0.1 PPM at -40 to 185°F / -40 to 85°C

Battery Power: 1 x Internal LiPo

Battery Life (approx.): 150 hours, 12 hours with backlight continuously on

External Power: 5 V, via micro-USB connector

Dimensions (WxHxD) 1.84 x 1.36 x 0.63″ / 46.7 x 34.5 x 15.9 mm

Weight: 2 oz / 57 g

Download Manual


  • Denecke JB-1 Timecode generator
  • USB wall charger with charging cable

** does not come with BNC cable, if needed please ask Rentals to include **