Up Converter Specifications

Posted By Tom Cropper on 08 May 2014

Posted in Used Equipment Buyers Guides

There are certain specifications that you will need to look at when considering a professional up convertor for broadcast and film studio use. Specifications vary depending on the brand and model, and, for professional digital image processing products, it is worth reviewing the recognised brands. These can be found by researching the industry leaders on professional forums.

Key Features

A typical up converter listing may refer to a Y/C delay correction; this refers to correcting the delay of the images Luminance/Chrominance balance. Other key features to look out for on a professional system include an internal test pattern generator, freeze mode, and the capability to adjust all blanking parameters for input and output. It is also recommended to verify that there are at least four system memories and 20 display memories, the latter allowing for the storage of control settings.

Interpolation Modes

Sophisticated interpolation modes refer to the mean value between two data points and can be used to estimate the image population. The interpolation modes work to make sure that the best quality of output pictures is achieved for all combinations of both input and output; it is therefore useful to check that this specification is included for professional use.


Fully specified digital HDTV up converters may list a synchroniser and colorimetry amongst their features. This is used to identify and set the absorption of light for a particular wavelength colour based on its concentration. When converting to an HDTV digital format, this will make sure that a high quality image is produced.  


It is possible to see how fast the up converting equipment will work by looking at its MHZ (Megahertz) reference. This is used to measure an electronic device’s transmission speed and should be fully specified at around 74.25 MHZ for a professional up converter.