Logo Made in Germany CommunicAsia / BroadcastAsia 2017

Wilhelm Sihn Jr. GmbH & Co. KG

Booth number: 1L2-07

About us

Wilhelm Sihn Jr. founded (WISI) was founded in 1926 in Niefern-Oeschelbronn (Germany). For nine decades WISI has been one of the most respected innovators in broadband, reception and distribution technology. Today, WISI is active around the globe in the business fields of broadband networks, fiber optics, digital signal reception, processing and modulation for TV and radio as well as in-house multimedia.

WISI currently employs 600 people at its production sites in Germany, Europe, Canada and Asia. The company has subsidiaries in France, Austria, Switzerland, Sweden, Bulgaria, Spain, Canada and China. In addition, WISI co-operates with more than 100 partners in all important international markets. More information can be found at

Products and services

WISI offers end to end system solutions for cable, IPTV and OTT operators. Our headend systems Tangram and Chameleon offer excellent flexibility and performance for reception, multiplexing, scrambling and transmission to and from any network. The Optopus optical distribution platform offers optical transmitters and receivers for HFC, RFoG and RF overlay.

Inca 4400 high density linear and ABR transcoders and 5420 ABR packager and origin server offers a complete OTT solution with intelligent video monitoring functionality. WISI's range of amplifiers and optical nodes covers requirements for cable TV distribution and broadband deployments using up to Docsis 3.1 in cable networks.

HLS Receiver

HLS Receiver

WISI introduces a professional receiver for HLS streams in our broadcast platform Firefly. HLS is used for media file streaming to mobile devices, but using HLS also for linear TV distribution will make each operator platform independent. While deploying new OTT services, each operator can also use HLS as a cost-effective solution to distribute linear TV channels to each sub headend.

Over The Top Headends

Over The Top Headends

Traditional cable operators and broadcasters are challenged by the multitude of OTT services that by definition bypass the operator and create revenues elsewhere. WISI offers solutions for all operators that are cost-effective and tailored to work together with our digital headends. This allows operators to create their own OTT packages, especially live streaming services that let customers view content on any device, through either the cable network or over various broadband connections.

Super scrambler - descrambler

Super scrambler - descrambler

The WISI Tangram platform offers extremely powerful video security features such as:
Verimatrix bulk descrambling
BISS descrambling
DVB-CI descrambling
AES/DVB/ProIdiom/Samsung LYNK scrambling

Descramble or scramble up to 768 services in one chassis
Up to 24 CAM slots in one 1 RU chassis

News & Innovations

HLS Streaming IRD for Video Contribution over the Internet 

Video Network Operators are to a large extent dependent on the reception of video streams from satellite, terrestrial, cable or IPTV in closed networks. What if there were a way to use the Internet for content distribution that could be used as source for your headends? WISI is one of the world...| » Further reading 

New Verimatrix Bulk Decryption Capabilities from WISI 

WISI recently announced new features that enable video operators using Verimatrix scrambling to securely deliver video across their network, decode entire channel line-ups at the network edge and convert them to a variety of IP or legacy RF video formats. This flexible product enables operators ...| » Further reading 


Wilhelm Sihn Jr. GmbH & Co. KG
Wilhelm-Sihn Str. 5–7
75223 Niefern-Oeschelbronn

Phone: +49 7233 66280
Fax: +49 7233 66350

Ari Miettinen
Area Sales Manager
Phone: +46 7064 29222

Mantenna WISI Engineering Co., Ltd.
K.K Industrial Building, Block C , 1 st Floor, 5 Mok Cheong Street
Tokwawan, Kowloon, Hong Kong
P.R. China

Phone: +852 23 624315
Fax: +852 27 642745

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Booth number: 4H3-10