IZI1

Denecke JB-1 Syncbox Timecode Generator

‎4/5
18 reviews
B&H Photo Video
USD 308.00
USD 292.60
‎-5%
Updated: Oct 24, 2026

About this item

The Denecke JB-1 Syncbox Timecode Generator is an ultra-compact, lightweight syncbox powered by an internal LiPo battery lasting up to 150 hours. Supporting all standard frame rates including 23.976, the JB-1 automatically senses the incoming timecode rate and features a single bidirectional BNC connector.

Features

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

Made in the USA

  • Features
    • Generates, Reads, Jam Syncs/Cross Jams
    • Supports All Standard Frame Rates
    • 1 x Bidirectional BNC Connector
    • 6 x Preset, 2 x User-Set Output Levels

Specifications

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

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

Package Weight

0.25 lb

Box Dimensions (LxWxH)

9 x 8 x 1"

Product photos are for illustrative purposes only and are exemplary. The colors, inscriptions, parameters, dimensions, sizes, functions, and/or any other features of the original products may look different than in reality due to their visual characteristics, so please refer to the product features that are indicated in the product descriptions.

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