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Highly accurate time code and word clock generator (sync box)


The SBOX-1N is an extremely accurate, very compact and affordable time code and word clock generator. Its main advantages, not-to-mention being the industry leader in time code sync precision,

are its surprisingly easy to use "plug and play" feature, along with its 1" large OLED display and well-designed power consumption optimization. With SBOX-1N you will never be out of sync again.

High quality BNC connectors for TC&WC out

Bright blue 1" OLED display

Intuitive settings of functions

Original LEMO connector for TC in/out, powering and calibration

High quality CNC milled aluminium case

Main features

All Time Code and Word Clock Formats

The SBOX-1 can receive, precisely jam or start to generate new time codes of all existing SMPTE time code formats.

Also, all commonly used word clock formats are supported, including their pull-up and pull-down options.

Extremely Easy To Use

To use, simply connect the cable to the active time code and leave the rest to SBOX-1!

The automatic turn on and jamming function provides the most user-friendly and reliable time code syncing as the SBOX-1 will automatically distinguish correct time code format, calibrate internal TCXO to obtain the same time base as your source, and start generating jammed time code.

You will find the time code synched to the source within less than 0.5 frame drifts even after two days of continuous use.

Ultra Highly Accurate TCXO

Embedded high precision temperature compansated crystal oscillator TCXO with frequency accuracy off 0.2 ppm is the fundamental piece of hardware for stable and accurate time code and word clock generator.

The superior quality of TCXO is best suited for changing environmental conditions where temperatures vary a lot during the day. Even in extreme weather conditions, the SBOX-1 will keep time codes in sync.


TCXO Calibration

Thanks to our sophisticated software methods, the ultra-highly accurate TCXO can be further calibrated to achieve much better than 0.2 ppm accuracy. These methods can be applied both during jamming, when TCXO is calibrated to obtain exactly the same time base as the source of time code, or during calibration, from GPS-1 devices which offer calibrating based on GPS atomic clocks.

This accuracy is almost impossible to beat. And, as you know, accuracy is what TC syncing is all about!

Top Build Quality

Thanks to precise CNC milling manufacturing technology, anodized aluminium alloy materials, original hi-quality connectors and other components, the SBOX-1 is very durable but still versatile.


Small, Lightweight, and Easy to Mount and Protect

With its weight and dimensions, the SBOX-1 is one of the smallest and most lightweight TC & WC generators on the market. It can be easily mounted on most camcorders or photo cameras available. Mounting on your rig is even easier when using our protective Nylon Pouch or Hot Shoe Holder.



The SBOX-1 is powered by two AA batteries, which are able to power the device for up to 60 hours of continuous time code generation. This outstanding performance is achieved by a lowering of the display brightness and by switching the display to complete Standby Mode when activity is indicated by two LED diodes.

AA size

hours battery

batt. chemistry

Technical specifications

Display 1“ blue OLED with adjustable brightness
Dimensions (h x w x d) 75 x 62 x 20 mm (2.95" x 2.44" x 0.78")
Weight (inc. batteries) approx. 178g (6.3 oz)
Mechanical construction CNC milled, anodized aluminium alloy
Powering 2x AA battery (alkaline or lithium) / 2x accu (NiMH, NiCd)
External powering 0.9 - 3 V DC
Current consumption 40 - 80 mA *
Battery life Up to 50 (80) hours **
SMPTE TC formats 23,976 fps - 30 fps including DF and NDF (also 0.5 and 2 multiples: 11.98 fps - 60 fps supported)
Output TC amplitude Adjustable from -18dBu to +6dBu
Input TC sensitivity 0.2 - 10 V (p-p)
TCXO crystal Temperature compensated oscillator (+/- 0.2 ppm)
Accuracy error Less than 0.5 frames / 24 hours
Wordclock 32 - 192 kHz including PAL/SECAM and NTSC pull-up and pull-down options

* depends on the operating mode

** with the lowest display brightness, WC off, alkaline batteries (Lithium cells)

Advanced functions

GPS calibration Factory GPS based calibration of TCXO with better than 0,1ppm accuracy result
Jamming calibration Jamming calibration feature to copy master's TCXO precision
Cross jamming Cross jamming alowes timecode sync between two diferent framerates
Auto ON Automatic power ON function after active time code detection
Display orientation Allows to set 180° display rotation for upside down SBOX-1N mounting position
TC offset Time code offset adjustment from -10 to 10 frames
UB settings Variable user bits settings including preset value, jammed user bits and live external timecode insertion
GPS time TC Starts to generate exact UTC time code synchronized all over the world


Declaration of conformity 03.05.2015 39.21 KB Downloads
User manual EN 05.06.2024 396.72 KB Downloads