Choosing the right network, technology and back-up services


The myriad of network types and technologies used in providing digital radio and TV services today can not only be confusing, but can be very costly and effect your ability to execute day-to-day operations.

For this reason AirMedia continuously evaluates the most appropriate distribution network and technology types that best suits the client's requirements, its existing infrastructure and equipment set-up as well as it's budget. 

Typical technolgies used in the digital communications arena are those of Satellite, Internet Cable and DSL, Private Leased Lines and  Mobile & Wireless ( 3G/EDGE/GPRS).

Integral to choosing the network and technology used is the provision of suffcient and reliable back-up systems, which AirMedia incorporates in all our digital radio and TV solutions.

Currently the most reliable and cost effective live digital radio and TV solution that is operated through a highly reliable and robust digital satellite netork that provides a near 100% up-time in any location in Southern Africa.


There are a myriad of different distribution architectures for content distribution.

AirMedia considers satellite, terrestrial, radio or any combination thereof, depending on what would best suit the client’s requirements and existing set-up as determined by the site assessment.

AirMedia also operates extremely successful live radio and digital TV platforms through a highly reliable robust digital satellite distribution network that covers any location in Southern Africa with an up-time of near 100%.

Technologies Used

The following technologies are used in the market place, each with its own set of requirements and in which set-up and application it is most useful and assures the customer deploys the most appropriate technology.

  • Satellite

This is the technology traditionally recommended by AirMedia for customers with 50 sites or more. Satellite has been used for many years as a radio and video distribution method. Most satellite links are multicast-enabled and therefore are a good distribution medium for many sites. For instance, satellite TV is a form of the MPEG 2 video format, the most common form of digital signage video today. Today’s satellites can transmit and receive IP packets with a "round trip" of approximately 0.5 second and is suitable for all voice, data and image applications.

  • Internet Cable and DSL (Fixed Terrestrial)

DSL or cable Internet service providers (ISPs) often throttle the amount of bandwidth that the end (edge) node can consume in order to accommodate more users on a singe line. You must consider this limitation in advance when streaming content (or any live operations) to the digital signage edge node over an open Internet connection.

  • Private Network Leased Line (Fixed Terrestrial)

When installing a on-site network, you should closely monitor CIR usage statistics to ensure the flow of content does not affect the normal traffic flow over your network. Private leased lines can be the best option for content dissemination-but also the most costly, requiring sophisticated network management.

  • Mobile/Wireless
  • The most common of these services are mobile or cellular but includes everything from two way radios to the GPRS, EDGE, HSDPA to the latest 4G networks.
  • These networks were primarily designed for voice and have limited bandwidth for data and video. Using these networks for data is convenient but a lot more expensive than the fixed line solutions like ADSL or satellite.
  • Network performance also dependent on coverage from base stations, obstructions, high volume usage etc.
  • It is not a dedicated service, but users compete for bandwidth.

Back-up and Service Levels

AirMedia believes digital TV screens and radio solutions are only as good as the back-up services provided and the general service levels agreed to between customer and AirMedia. To ensure reliable service up-time, we have a generator and uninterrupted power supply (UPS) equipment at AirMedia House.

AirMedia believes as a service provider we should always know the status of your systems and backups at all time, before the business is impacted.

We strive to minimize the impact of software or hardware failure, power interruptions, and facilities damage, and maximize our delivery of services to subscribers. The AirMedia disaster recovery system provides rapid cutover to a redundant system in the event of an interruption. Our system’s features include:

  • Automated synchronization of database and key files
  • Backup system that acts as a hot standby system
  • Automated failover from Primary system to Standby system without equipment changes
  • Automated database and key file backup with check to verify backup integrity

In the event of a disaster or other failure the AirMedia system has an automated back-up that allows us to restore the video and radio systems quickly and re-establish normal business operations.

© AirMedia  | Privacy Policy | A Digital Solace Project