Denecke JB-1 Syncbox Timecode Generator
The Denecke JB-1 fits a Syncbox timecode generator with a display into a 2 oz aluminum case, and it reads, generates, and jam syncs to every standard frame rate, 23.976 included.
The JB-1’s display shows the timecode and settings, and a single push button runs its menus. In Auto Jam Once mode the JB-1 senses the incoming frame rate and jams to it, and in Jam Once mode it can cross jam to an output rate you set. Cross jams work within each group of rates: 24, 25, and 30 with each other, and 23.976 and 29.97 with each other.
Its temperature compensated crystal oscillator (TCXO) is ten times as stable as Denecke’s earlier generators, so one jam a day is enough. One BNC connector carries timecode in and out, and the output level is selectable from six presets or two user levels, with no need for an external pad.
The internal LiPo battery runs about 150 hours, or 12 hours with the backlight left on, and charges through the micro USB port. The same port takes firmware updates from a Mac or Windows computer.
Features
- Reads, generates, and jam syncs to all standard frame rates
- Auto jam and cross jam modes
- Sunlight-readable display with backlight
- One BNC connector for timecode in and out
- Six preset and two user output levels
- TCXO with under half a frame of drift a day
- Internal LiPo battery, about 150 hours
- Micro USB charging and firmware updates
- Aluminum housing, 2 oz





