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Denecke JB-1 Syncbox Timecode Generator

Name: Denecke JB-1 Syncbox Timecode Generator
Brand: Denecke
SKU: DEJB1
Price: 292.60 USD
Availability: InStock
Rating: 4.5 (18 reviews)

BH #DEJB1 • MFR #JB-1

18 reviews

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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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$292.60

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Denecke JB-1 Overview

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

Pro Level In A Teeny Tiny Box

By Kyle

Rated 5 out of 5

Date: 2024-05-16

As a production sound mixer, I've been using Denecke syncboxes for over 10 years. I have two of their SB-3s and bought one of these JB-1s a few years back after hearing insistent comments from camera dept about how great Tentacles' size are. :) I now have finally switched completely over to 2 JB-1s. The build quality and form factor is incredible. I'd expect nothing less from a trusted/long established company like Denecke. I had debated between these and the Tentacles. I heard mostly great things about them but also the 1/8in jack and plastic connector made it appear more like a prosumer device for one-man-band/DSLR type productions. No doubt they are still great devices, but as a sound mixer, I would consider the JB-1 a step above with the BNC connector and onboard display screen. It just feels really well made and super simple to use. No regrets and no more disgruntled camera dept when I hand them one of these to mount on camera!

2 out of 4 delivered DOA

By Michael

Rated 3 out of 5

Date: 2022-07-07

I do really love these TC boxes and now that I have working ones, all is well but that is kind of a shocking QC track record for Denecke. Phone support is good with knowledgeable staff. Could have just been bad luck, no design is without its lemons. FYI - B&H does not do advance replacement so you have to buy another one before they ship a replacement.

See any errors on this page?

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: Joe P

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 S

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