Frequently Asked Questions


What countries do you ship to?

We currently ship to the UK, EU, Norway, Switzerland and Iceland. If your country is not on the list, please contact us and we will try our best to help. 

Do you ship to the USA?

Not at the moment, although we are planning to in the near future. 

How long will my item take to arrive?

Items which are in stock will normally ship within 1 business day. Shipping times are country dependent. Details can be found here:



What payment options are available?

We accept online payments by Visa, Mastercard, American Express and PayPal. We also accept bank transfers. Please email or call our sales department when you check out to pay by bank transfer. 

We are an EU business and registered for VAT. Can we purchase without paying UK VAT?

Yes! For EU businesses that are registered for VAT in their home country we can process your order without applying UK VAT. Please email or call our sales department  with your EU VAT number before you check out the first time. 

Do you offer volume discounts?

We are always happy to talk about larger orders. Please give us a call to discuss your particular requirements.



How far does SDI video go?

SDI video signals degrade as the length of a coaxial cable increases, especially at higher video resolutions. Typical maximum distances with high quality cable are:

SD-SDI:         300m

HD-SDI:         240m

3G-SDI:         180m

6G-SDI:          90m

12G-SDI:        70m 

Using lower quality cable, connectors, joins and patch panels will significantly reduce the achievable range. 

What is the best way to extend my SDI signal?

The range of an SDI signal can be doubled by inserting a good quality SDI reclocking distribution amp in the middle of the cable run. The DA includes an equalizer, which compensates for high frequency cable losses, and a reclocker which regenerates a clean video clock signal to remove jitter from the video signal.

For longer distances, media converters can be used to convert to optical fiber cables. The SDI signal can then be transported up to 10km or more without any loss of quality. 

Ripcord Designs sells a range of SDI cable extenders, distribution amplifiers and fiber media converters. Please see the product pages on our website for details.

How can I send SDI video over very long distances?

For longer distances the SDI signal can be transmitted over optical fiber. A small SDI to optical fiber converter is used to convert from electrical to optical format without altering the video information in any way, so pristine video quality is maintained. The optical signal can be sent over several km with no loss of quality. At the other end of the fiber optic cable another media converter is used to convert back to coaxial cable.

Ripcord Designs sell range of fiber optic SDI extenders capable of sending SD, HD and 3G-SDI up to 10km.

How can I extend a DVB-ASI signal?

DVB-ASI uses the same physical layer transport as SD-SDI, a 270Mb/s serial digital signal over coaxial cable, and can therefore be distributed and extended using good quality SDI equiment. 

However, unlike SDI, DVB-ASI is sensitive to the polarity of the signal. Some equipment from other manufacturers inverts the signal on some or all of their outputs making them unsuitable for ASI. All Ripcord Designs distribution amplifiers and fiber converters use noninverting outputs and are perfect for extending or distributing DVB-ASI signals.

How can I split an SDI signal into multiple devices?

The best way to drive multiple devices from a single SDI video signal is to use a distribution amplifier, or DA for short. A DA takes a single video input and creates multiple copies on its outputs. They are commonly used to distribute video signals around a studio, drive monitor walls, split a video signal into a monitor and recorder and many other applications.

A good quality DA will include a cable equalizer to compensate for cable losses at the input, and a reclocker to regenerate the video clock and remove jitter. Together these functions create perfect, jitter free copies of the original video with nice clean eye patterns.

Ripcord Designs sell a range of SDI distribution amplifiers for SD, HD and Ultra HD video.