The worlds smallest H.265 mobile encoder

Smart-telecaster Zao-S

Smart-telecaster Zao-S, the world’s smallest mobile H.265 HEVC hardware encoder, enables full HD live video mobile transmission of live events via 4G from remote locations, to anywhere in the world, with a simple unit attached to the camera.

What the ZAO does for mobile Broadcasting

Challenges live mobile video streaming

High quality mobile video streaming can be challenging from remote locations such as news-gathering situations or other live events that may include sports events being filmed over a wide area. Cameras may need to provide live video streams from a car, motorcycle, drone or helicopter that are moving at speed. The fluctuating availability of the 3G or 4G cellular network makes it hard with traditional systems to maintain reliable HD quality of live streaming content. The RASCOW algorithm combined with H.265 and its small size and weight, the Zao-S provides high reliability that is easily transportable even on a person or bicycle. It can easily be held in a body strap or mounted directly to the camera. Want to know more about live mobile video streaming?

Download the mobile surveillance whitepaper


The miniature Smart-telecaster Zao-S maintains HD quality in low 3G or 4G bandwidth environments

Smart-telecaster Zao-S, the world’s smallest mobile H.265 HEVC hardware encoder that can be attached to any broadcast camera, solves these issues. Thanks to the compression capabilities of H.265, coupled with its RASCOW technology, high quality mobile HD live streaming is possible even in low 3G or 4G bandwidth environments. This makes it a first class product for encoding on the move for reliably streaming live broadcast quality content.

Smart-telecaster Zao-S: Minimal latency whilst covering live events

When streaming live events, especially news, a one second delay is very noticeable – Zao-s can provide minimal latency typically half a second but as low as 240ms. Production companies, broadcasters and journalists are no longer getting frustrated with reliability, delay and image quality. Broadcasters and production companies can save money without the need for satellite, RF services or an Outside Broadcast (OB) truck.

ItemSpecificationExtra info
Encoding systemH.265 Main Profile
Pixel (NTSC)720×480, 360×480 (Half-SD, Full motion) 720×240 (Field thinning)
Pixel (PAL)720×576, 720×288, 360×576 (Half-SD, Full motion), 720×288 (Field thinning)
Pixel (HD) *50i and 59.94i1920×1080, 960×1080 (Half-HD, Full motion), 1920×540 (Field thinning), 960×540, 640×360, 1280×720, 640×720
Video outputBlackmagicDesign: Decklink Quad 2, Decklink Studio 4K, UltraStudio Express, UltraStudio Mini Monitor
Signal mode1080/59.94i, 1080/50i, 480/59.94i, 576/50i (Depending on the input signal of the transmitter
Driver versionSPECIFICATIONS - Driver version - BlackmagicDesign Desktop Video 10.9.3 and 10.11 (Windwos10 1803 or later)
Bit Rate200kbps~5Mbps
HD View Single User registration form
Field RateMaximum 59.94fps(59.94i)/50fps(50i)
Circuit typeWCDMA, LTE, Wireless LAN, Wired LAN, WiMAX, Wi-Fi, BGAN
Error correctionARQ
AuthenticationPassphrazes (Up to 32 characters)
MultilinkUp to 3 lines
Connecting functionManual connection, Automatic connection on Startup or Abnormal disconnecting
Noncommunication continuing timeUp to 60 seconds
Supply VoltageDC10.5V ~ DC17V Exclusive AC Adapter:  DC15V/2.7A Exclusive External Battery:  DC14V/3A
Power ConsumptionOperation(USB Maximum Load): About 35W Operation(Charging):About 25W Operation(Normal):About 13W Standby(Power OFF):About 250uAUSB Load depens on the connected devices
Operating TimeOperation(ON-AIR): About 1 hour Standby: 90 daysUSB modem x 3 Average operation
Dimension (W/H/D)78mm(W) x 123.5mm(H) x 35.5mm(D)Without Projection
Body weightAbout 410gIncluding Jacket
Product weightAbout 330gUnit weight
Temperature and humidity for Use0 to +40℃ / 20 to 80%RHWithout condensation
Temperature and humidity for conservation-20 to +60℃ / 10 to 80%RHWithout condensation
Waterproof /Drip-proofNo

Key features Smart-Telecaster Zao-S:

Real time mobile HD video transmission direct from the camera

Smart-telecaster Zao-S is a portable video H265 HEVC encoder that compresses video in real-time enabling full HD live video streaming to anywhere in the world, while on the move.

Lightweight and small

Due to its lightweight (about 350g) and portability, the Zao-S can be carried either on body strap or can be mounted on a camera and connect either via HD-SDI or HDMI to the camera.

Supports H.265 video compression standard

Smart-telecaster Zao-S is equipped with the H.265 video compression standard. H.265 technology improves encoding and compression by approximately 50% compared to H.264 compression. As a result HD picture quality can be maintained even when the mobile phone signal strength becomes low and with very low latency (0.5 seconds).

RASCOW technology

Smart-telecaster Zao-S connects up to 6 SIM cards via external dongles that can be bonded together to form a single connection via 3G, 4G or WiFi. RASCOW technology monitors the changing mobile signal strength in real time and adapts the most optimum bonded combination of the 3G, 4G and WiFi connections. As a result the quickest and most reliable delivery across the internet is given to the decoding platform. This continues to give reliable video contribution even when signal strengths becomes low or fluctuates rapidly.

Easy to carry

Smart-telecaster Zao-S is a portable video encoder. The specially strap that comes with the product is easy to carry and operate.

Power saving

Smart-telecaster Zao-S  contains on internal battery and external battery

Advanced connectivity

Smart-telecaster Zao-S supports a variety of mobile networks such as WCDMA, LTE, 3G, 4G, WiFi, ethernet, etc.

Multi-Link technology

With multi-link technology in Smart-telecaster Zao-S you can use up to 3 mobile data cards simultaneously. This strongly improves the quality of broadcasting under weak signal conditions.

Receives multiple video streams

Our Smart-telecaster Zao-S  viewing software can receive up to 4 video streams from 4 different camera units at the same time.

Supports 1080i standard for full HD TV

Smart-telecaster Zao-S supports the
HD-SDI/HDMI (1080i) video standard for full HD TV achieving unprecedented high quality digital video.

Secure communications

To guarantee secure communications Smart-telecaster Zao-S supports
authentication and encryption(AES 256bit).

Live with your Smartphone

STC for ML CAM is now available in the App store for mobile video transmission just using your iPhone.


Technology for optimized mobile communications

Key features of RASCOW technology

Click on the image to enlarge

Our technology for optimized mobile communication is called RASCOW (Real-time Auto-Speed Control based on Waterway model). RASCOW technology automatically balances the load between various network base stations during live broadcasting. This allows unprecedented stability in image transmission, even under network congestion or weak network signals.

The ZAO can be used in many ways, by just as many different customers. You can find some uses here, namely:
The Zao broadcasting video from a boat on open sea
The ZAO live streaming a radio broadcast

Zao-S User Registration Form
Customers who have purchased Zao-S can register and download the HDView Single software from the following form.

Download HDView single Software

Operating Environment

Windows 10 64bit
Version 1067 & build 14393 and up
Intel Core i5 2.5GHz or above
-Physical Memory
8GB or above
-GPU (When using IP encoding function)
NVIDIA GeForce GTX / Quadro or above
One global IP address
-Video output
BlackmagicDesign Decklink Quad 2
BlackmagicDesign Decklink Studio 4K
BlackmagicDesign UltraStudio Express
BlackmagicDesign UltraStudio Mini Monitor

Driver version – BlackmagicDesign Desktop Video 10.9.3 and 10.11 (Windwos10 1803 or later)

<Recommendation PC>

OS: Windows 10 Pro 64bit
CPU: Intel Core i7-7700HQ
RAM: 8GB DDR4-2400MHz
GPU: NVIDIA GeForce GeForceR GTX 1050 4GB GDDR5

For more information, please refer to the manufacturer website.

Live Streaming Management and Decoding – Cloud and On Prem

Download the product sheet

Smart-telecaster ZAO-S video

Contact us for more information.

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Why Soliton Systems?

  • Experts in live broadcasting & IT security
  • Cutting-edge technology
  • Stable Transmissions
  • Over 30 years of experience
  • More than 2000 premium brand customers

Zao-S Brochure

Smart-telecaster Zao-S user brochure

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