Tieline Technologies

Tieline Gets Sydhavsoerne in Denmark Mobile with the Commander G3



Radio Sydhavsøerne in Denmark is a commercial station that is part of the Lolland-Falsters Folketidende media group. We broadcast over a wide area throughout the islands in the southern Sjælland region. We generally broadcast live from different places throughout Sydhavsøerne and in the past few years we have predominantly used ISDN or GSM voice-capable codecs.


The quality of ISDN is excellent, but it is not very flexible because fixed line connections require users to be close to where they are broadcasting from. Wireless GSM voice connections are much more flexible, but the program quality is not as good due to the restricted network bandwidth.

We were keen to improve the quality of our wireless broadcasts so we set out to find a high quality solution that we could use to perform live broadcasts from a range of outdoor events in Sydhavsøerne, as well as reporting on traffic and breaking news.

We did a lot of research on the technologies available and noticed that the number of companies offering simple, high quality and high performance wireless codecs was quite small. At the Danish Radiodays conference, AVIT-Systems, one of our equipment partners, told us about Tieline Technology and their range of wireless IP codecs. I was very interested in their capabilities.

  --- Thomas Jensen - Denmark
Presenter Thomas Jensen uses the Tieline Commander 3G
at a football match

These codecs can connect over 3G cell phone networks and broadcast over IP. They connect directly to a LAN for IP broadcasting and also accept a range of plug-in telecommunication modules for different networks, including 3G wireless, ISDN, POTS/PSTN, X.21 and GSM. After seeing a demonstration of the technology I was really impressed. I said to myself, “That’s the way to do it,” and I was convinced that the Tieline IP solution was what we needed.

We bought a Commander G3 field codec and a Commander G3 rackmount codec for the studio. Technical configuration of the codecs was easy to do and I especially like the option of performing all programming over a remote LAN connection. In Denmark we connect to the 3G network using a Tieline UMTS/HSDPA module installed in the field codec and the Commander rackunit codec at the studio is connected to a dedicated DSL LAN connection.

The codecs are very easy to connect and the preset functions on the field codec make it easy for reporters working alone to connect and broadcast back to the studio. We use the default settings on the codec to connect and normally achieve bit-rate connections of 96 kbps. This allows us to broadcast mono or stereo FM audio, depending on our broadcasting requirements.

We are proud to be one of the first commercial radio stations in Denmark to buy this technology and to integrate it into our broadcast system. We use the codecs two to three times a week for sports broadcasting, competitions, news coverage or vox pops with people on the street. In fact, the codecs have become so popular we have had requests from our reporters to get a couple more to expand our capabilities.

A few weeks ago we configured the field codec as a “base” in our outside broadcast van and a reporter was fitted with a Sennheiser Mikroport wireless system with bidirectional communication. It was used to cover a big marketplace over three days with nearly 200,000 people in the vicinity. It worked very well and showed the flexibility of the unit.

Søren Hansen is the Technical Manager for Radio SydhavsØerne in Denmark.