HD-SDI Encoder

We are an industry-leading manufacturer and supplier of hardware video encoders & decoders who have held a strong position in the market for over 15 years. As specialists in this niche video over IP industry, we have experience supplying world-class products – including our Video Encoders and HD-SDI encoders – to a global audience.

HD-Serial digital interface (SDI) is a family of digital video interfaces first standardised by SMPTE (The Society of Motion Picture and Television Engineers) in 1989, and is widely used in SDI encoders, SDI converters and other equipment which can be applied to radio and television fields & security monitoring.

SDI, HD-SDI and 3G-SDI are all standards supporting different resolutions and frame rates on a single Coaxial Cable up to 100m in length. SDI was supporting PAL NTSC SD resolutions only, HD-SDI went up to 1920×1080 at 30fps and 3G HD-SDI increased the 1080P frame rate to 60 fps. 3G-SDI runs at 3 Giga Bits/sec data, hence why it can just about work over good quality Coax up to 100m. Antrica HD video encoders can compress this 3GB/s data to 10-20MB/s which can be sent over a standard 10/100/1000 LAN.

We often find that our HD video encoders are required to update older non-IP HD-SDI cameras and bring them onto a network and integrate with ONVIF VMS (video management software).

World-wide specialist, manufacturer & supplier of video encoders and decoders

Antrica is an industry leading manufacturer and supplier of hardware video encoders & decoders and have been a well-known name in this industry for 15 years.

We are specialists in this niche video over IP industry and supply to a range of markets worldwide. Our products are set apart from the competition in terms of reliability, performance, integration and compatibility.

Antrica video compatibility

See the compatibility of our Antrica decoder products

Antrica's specialist insights and step-by-step support helped me to ensure I made the correct product choice for my video encoding software. A very good service!
Becca Pye - Chief Technology Officer
Antrica’s products have an excellent reputation and are reliable, we know they just work.
Antrica Customer
The Antrica encoder is a vital part of our RAMsys (Remote Alarm Management System) solution. With its low bandwidth requirement, it enables remote site videos to be shared to central headquarters for alarm verification and fast decision making. It is a great product to be part of our ecosystem.
Mark Arcay – InterTech Vision

frequently asked questions

Explore some of our most commonly asked questions. Can’t find what you’re looking for? Get in touch.

The ANT-3xxxx range is fully ONVIF Profile S & G Compliant.


A fully ONVIF encoder will 100% work as ONVIF guarantees compatibility (ANT-3XXXX range). However, if you need a ‘view only’ stream and can live without ONVIF discovery then we have the ANT-2XXX range which can sometimes integrate. We can provide a public IP stream for you to test if you need.

Yes, we do for larger projects. We also offer a remote way of testing the stream’s integration.

Any H.265 option will be suitable.

The ANT-36100, as it has alarm/serial data controls, as well as PoE, and is a more industrial-type decoder.

Yes. Providing you have anti-static handling procedures in place, these can be used in any applications where it can be ‘housed’.

This is due to the fact we use low bit rates and compression, so we need at least 1-2 frames for encoding. Decoders need buffering to work, so most latency is in the decoder end.

Yes and no. Any decoding and re-encoding potentially reduces the quality, but using sufficiently high bit rates will allow the quality to look as good as the original.

Yes, these are intended to be low-latency wireless links with Video in and Video out.

Some of our decoders don’t have HD-SDI as an output. These converters offer a solution to have an HD-SDI output when required.


Antrica have taken on the challenge of reducing to zero all single use plastic within its packaging of Encoders and Decoders by the end of 2020. We are also striving to provide paperless shipments wherever possible.

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Antrica UK

Our Antrica main head office is based in the UK and operates on GMT +0hrs / BST hours.

Outside of these business hours please get in touch using the contact form opposite or email sales@antrica.com for purchase enquiries or support@antrica.com for technical support enquiries.

We will respond first thing the next working day.

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