FAQ

FAQ: 

Who Are Omnitek?

Omnitek is the trading name of Image Processing Techniques Ltd, which is both a leading manufacturer of video Test & Measurement equipment and a major provider of IP & Design Services to image processing manufacturers in the broadcast, professional A/V, medical, automotive, aerospace/defence and consumer market areas.

Where can I get more information about Omnitek’s T&M products?

Omnitek manufactures a range of video Test & Measurement products supporting the testing of SD through to 4K video formats over SD-SDI to 12G-SDI physical interfaces. Omnitek’s Test & Measurement products cover manufacturing, QC and compliance, grading and many other applications.

Visit our Test & Measurement product page or contact us at sales@omnitek.tv

Where can I get more information about Omnitek’s Design Services and IP?

Omnitek offers a design consultancy service which specialises in FPGA IP, electronics and software design for video and image processing applications for a wide variety of markets ranging from high volume consumer electronics to low volume specialist design in markets such as medical imaging.

Visit our Design Services page or contact us at consultancy@omnitek.tv

Where can I buy Omnitek products?

Our Video Test & Measurement products are sold by a network of dealers across the world, though in some locations Omnitek sell direct. Go to the sales page and click on the map to find a dealer for your area.

For sales information on our FPGA IP and Development Board products, please go to our FPGA IP & Dev Board Sales page.

Where can I get support for my Omnitek T&M equipment?

Ideally you should contact the supplier of the equipment who may be able resolve any immediate issues.

Support is primarily via our support@omnitek.tv email address which allows us to track any issue through to successful conclusion.

You can also contact us directly on Omnitek’s main phone number +44 (0) 1256 345 900 which is open normal UK business hours.

How Can I install the latest Ultra software?

The latest Ultra software is typically in the Downloads area of the web site. To access this area of the web site you will need to log-in. The Ultra software is supplied as an .omk file (for example ultra_3_3_50_0.omk). This can be installed in 2 different ways, via USB stick or via a network connection.

Software Installation via USB stick

Down load the software and copy the .omk file into the root directory of a FAT32 USB stick.

Insert the USB stick into one of the USB slots on the rear panel of the Ultra unit.

After around 30 seconds the Ultra should recognise that there is a new software file to be installed.

When the prompt appears to install the software, select the software listed and press OK

After about 2 minutes the software will be installed and the Ultra unit will reboot to load new FPGA and software.

Software Installation via Network

Down load the software and copy the .omk file into network folder accessible to the web browser controlling the Ultra unit.

In the "Configuration" - "System" menu select the "S/W Update" function in the "Files" section.

Navigate to where the .omk file is held then select it.

When the prompt appear to install the software, select the software listed and press OK

After about 2 minutes the software will be installed and the Ultra unit will reboot to load new FPGA and software.

What do I do if I accidently disconnect the Ultra HDMI user interface in the Connections menu?

Don’t worry, if you have a keyboard connected to the Ultra, you can hold down the <ALT> key and press <H>. This should re-make the connection.

Note that on software versions earlier than 3.4, the connection can be remade using the web browser interface and if this is not available, turning the Ultra unit back on will automatically connect the user interface to the HDMI output.

How often does my Ultra 4K Toolbox need calibrating?

Calibration has been required traditionally to compensate for aging analogue components within the equipment. Even in digital equipment there are analogue components such as driver chips, resistors, capacitors and crystal oscillators as well as analogue variables such as temperature and power rail voltages that may have an effect on the perform of digital circuitry especially with high clock rate signals such as those of 3G-SDI, 6G-SDI and 12G-SDI signals.

Many organisation’s quality system require that all test and measurement equipment is regularly calibrated and does not differentiate between analogue or digital based designs. Typically, manufacturers will recommend a calibration schedule for their equipment as they understand which parts of their products may drift, which components will age and what the impact will be. In the case of the Ultra 4K Tool Box, there is no recommend recalibration period, but due to Omnitek’s policy of continued product improvement, the calibration process allows customers to benefit from any improvements to the calibration process that may improve the accuracy and/or repeatability of measured results.

See our Calibration Policy statement.

How can I find my Ultra on the network?

Ultra units can be controlled via a web browser such as Chrome, Firefox or Internet Explorer. The web server within the Ultra can be accessed via a network by entering the units IP address or “Machine Host Name” into the browser address field. For example:

http://ultra-FCC23D082303

Where the unit’s unique Mac Address this is printed on the bottom of the Ultra unit in the form: fc:c2:3d:08:23:03

Once the web browser is connected to the Ultra’s web service the user interface will be displayed in the browser window.

If the Ultra unit has been renamed, of if the unit has a static IP address that cannot be discovered, on power-up the Ultra will automatically route the user interface to any connected HDMI monitor. Selecting the Configuration menu from the user interface will display the current network IP Address and the unit’s unique “Machine Host Name”.

Further information is available in the Ultra Quick Start Guide or the Ultra User Guide

Why does the Ultra 4K Tool Box not display jitter on the Eye diagram?

Omnitek made a conscious decision to eliminate the jitter from the Eye pattern and provide more appropriate jitter measurement tools. This decision was made while developing the Ultra 4K Tool Box to support 12G-SDI because the permitted jitter for some frequencies is 8UI (unit interval or cycle) thus making the Eye pattern unusable. Even at 0.2UI the Eye will close making it difficult to measure accurately. For most practical purposes the Eye should be jitter-free so that the signal shape can be seen and the critical parameters of amplitude, rise time and fall time can be measured.

The Jitter Meter, Jitter Histogram, Jitter Spectrum and Jitter Waveform instruments provide a much more accurate assessment of the jitter on the signal rather than completely masking the Eye pattern with levels of jitter that are actually permitted for 12G-SDI.

For more information see our 12G-SDI Physical Layer Analysis white paper.

Why does the Ultra 4K Tool Box not have a ‘Real Time’ Eye waveform?

There is a misbelief with some parties that a ‘real time’ Eye Diagram is somehow better than a sampled display. In practice, the method is irrelevant as the displayed Eye Diagram is nearly always the same and this is the important thing when making measurements.

There are basically two different approaches to capturing the Eye Diagram from an SDI signal. These are real-time capture (employed by Real Time oscilloscopes) and signal subsampling (employed by Sampling oscilloscopes such as the Omnitek Ultra 4K Tool Box). All broadcast T&M equipment will use one of these approaches to create the Eye Diagram using a variety of proprietary techniques.

Real Time oscilloscopes build the Eye Diagram using the complete waveform, captured from a single trigger point and typically sampled at a frequency at least 2.5 times higher than the signal. In the case of a 12G-SDI signal, with a 6 GHz fundamental frequency, this would have to be better than 15 GHz.

Sampling oscilloscopes build the Eye Diagram from individual pixels sub-sampled at a frequency lower than the signal’s fundamental frequency with the position of each sample offset in time from the previous.

These two approaches both produce a pseudo-live display which look subtly different. Whichever approach is used by different manufacturers, the sampled results will have been processed and filtered to display the most accurate results.

For more information see our 12G-SDI Physical Layer Analysis white paper.

 

How do I reset the screen resolution on the OTR 1001 to one supported by the monitor I’ve plugged in?

The OTR is usually able to set the correct screen resolution for the monitor that is being used. However with some VGA monitors, it may not be able to set the optimum display resolution automatically and instead it tries to use the screen resolution that was last set. In some cases, this may result in no display at all.

A program is available (zResolutionAdjust.exe) that first sets the display to a screen resolution of 1280 x 1024 (which all recent monitors support), then calls up the Intel Graphics and Media Control Panel to allow you to select the screen resolution you require. This program is available to download from this website.

The steps needed to set the screen resolution are given in our Help Note.

What should I do if the USB ports on my OTM 1000 appear to stop working?

If a USB device (mouse, memory stick etc.) is plugged into the OTM1000 at the wrong angle, or if the device is not fully pushed into the USB socket, it is possible to "hang up" the USB interface, following which no devices are recognized. If this happens, it is necessary to:

  1. Remove the USB device.
  2. Power-down the OTM1000 system.
  3. Remove the power cord for a minimum of 30 seconds.
  4. Plug the power cord back in.
  5. Restart the system.
  6. Install the USB device, taking care to plug it in correctly.

I am not getting the Audio Click pattern I expect on the second output.

In V2.3 of the OTM/OTR, the Audio Click pattern is generated by the sequence playing on Output 1. So if the OTM/OTR is being using in Dual Generator mode (using the GEN_2 software option) and the two generators are being used to generate independent sequences, the Audio Click pattern may potentially be incorrect for the sequence on Output 2. This is corrected in V2.4.

Where is your DataLab product on your website?

The DataLab was renamed the OTR 1003.