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Denecke JB-1 Syncbox Timecode Generator

BH #DEJB1 • MFR #JB-1
Denecke JB-1 Syncbox Timecode Generator
Key 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
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.
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Denecke JB-1 Overview

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.

The JB-1 generates, reads, and jam syncs timecode, offering six preset and two user-selectable output levels. Its Temperature Compensated Crystal Oscillator (TCXO) eliminates the need to jam more than once per day. A large backlit display enables you to easily read your timecode and settings, even when shooting outside.

Weighing only two ounces, the JB-1 includes an LED status and low/dead battery display. It provides an easy-to-use menu and is updatable via Mac or Windows using its micro-USB port.

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

Denecke JB-1 Specs

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
Packaging Info
Package Weight
0.25 lb
Box Dimensions (LxWxH)
9 x 8 x 1"

Denecke JB-1 Reviews

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What cable do I need to jam time code into my RED ...

What cable do I need to jam time code into my RED DMSC2 with this device?
Asked by: Jonathan
All you need is a quality SDI BNC to BNC cable. Here is one suggestion. Canare 1' L-3CFW RG59 HD-SDI Coaxial Cable with Male BNCs (Black) BH #CA35HSVB01 • MFR #CA35HSVB01
Answered by: Dennis L
Date published: 2022-03-22

Will this work with Convergent Design's Apollo to ...

Will this work with Convergent Design's Apollo to insert time code when ISO recording?
Asked by: Steve
according to the manufacturers manual connect the JB-1 to LTC I/O port, as long as you are using that time-code port as the selected time-code source, the time-code that's generated by JB-1 will be read and show up on the Apollo.
Answered by: Sean
Date published: 2021-02-02

Will this sync a VCR and DVD recorder when ...

Will this sync a VCR and DVD recorder when copying videotapes?
Asked by: Rick
This product will not be able to do that.
Answered by: Joseph
Date published: 2019-11-14

Is there any software involved, like the ...

Is there any software involved, like the Tentacle, so I don't have to make it an issue with an editor?
Asked by: Jason
No. Software is not involved but the unit is updatable via micro-USB for both mac and windows.
Answered by: hectorm
Date published: 2021-12-06

Can I use this with the Red Komodo and Tentacle ...

Can I use this with the Red Komodo and Tentacle Sync Recorder and Tentacle Sync to Red Komodo timecode cable?
Asked by: Jason
The Denecke JB-1 Syncbox Timecode Generator (B&H# DEJB1) can use the Tentacle Sync Tentacle to BNC Cable (Straight, 16") (B&H# TEC06) to provide time code for jam-syncing the Tentacle Sync TRACK E Pocket Audio Recorder with Lavalier Mic and Timecode Support (B&H# TETRACKE). And one could indeed connect the Denecke JB-1 Syncbox Timecode Generator (B&H# DEJB1) with the RED DIGITAL CINEMA EXT-to-Timecode Cable (3') (B&H# REEXTTOTC3) to the RED DIGITAL CINEMA KOMODO 6K Digital Cinema Camera (Canon RF) (B&H# REKOMB).
Answered by: Yoni
Date published: 2022-03-11

What setting is used to output timecode to a ...

What setting is used to output timecode to a Lectrosonics SPDR recorder?
Asked by: Scott
To send timecode from the Denecke JB-1 Syncbox Timecode Generator, set the mode for Jam One (JO) and then set the Frame Rate as desired. Here is a link to the user manual: https://www.bhphotovideo.com/lit_files/644705.pdf
Answered by: Lisa S
Date published: 2021-12-30

Does the TC-3 slate have this device built into ...

Does the TC-3 slate have this device built into it?
Asked by: Jason
The Deneke TS-3 Time Code Slate reads and displays SMPTE/EBU Time Code; it utilizes an internally mounted SB-2 Syncbox Time Code Generator.
Answered by: Chris H
Date published: 2022-05-18

What happens with the timecode when I am ...

What happens with the timecode when I am recording at 60fps?
Asked by: Brian
From the manufacturer; 60fps is the Video Frame Rate. The TC frame rate will be half of that. So, 60 fps Video = 30 fps TC. Please note, that many times the video frame rate is referred to as '60' when it is actually '59.94'. In this case, the timecode rate is 29.97fps. I have a strong hunch that this is the case here. 30\60 is very rarely used theses days.
Answered by: Craig
Date published: 2021-11-09
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