Tieline Technologies

Tieline and Laud FM give voice to the people over POTS

Laud FM

Camilo Gantiva Broadcasting live with the Commander G3 

Laud 90.4FM is an innovative university radio station that is embracing technology in performing regular live remote broadcasts at a range of events in and around Bogotá, Columbia.

"We produce a UNICEF-sponsored children's program and a mix of news, music and other cultural programming," said Camilo Gantiva, a Broadcast Engineer at 90.4FM. "We regularly use our Tieline codecs to send broadcast quality FM audio from various events around Bogota to our studio in the University District Francisco José de Caldas. We broadcast it throughout Bogotá City, and the departments of Cundinamarca and Boyacá."

Tieline Commander IP codecs are capable of connecting over IP and wireless 3GIP networks, as well as POTS, ISDN, X.21 and GSM networks. "We currently connect a Commander field unit codec over normal analog telephone lines (also known as POTS) and send mono voice, or a mix of voice and music in stereo to the studio," Camilo said. "We have installed a POTS-connected Commander rack-mount codec at the studio to receive the audio from the remote broadcast site and route them to our transmitter. This is all achieved for the cost of a standard telephone call."

"The audio quality of the codecs is superb," he said. "Everyone is very impressed and our listeners can't notice any difference between the studio audio quality and our remote broadcast transmissions. Dialing is very simple and the delay over POTS is extremely low, so it is easy to perform live broadcasts and communicate live between the studio and remote broadcast site."

Tieline codecs use interchangeable plug-in modules that are designed for each connection transport. This means that it is possible to connect over existing networks and upgrade to new technologies such as IP and 3GIP as they become more widely available.

"We are currently using POTS modules with our codecs because wireless data networks like 3G are not available," Camilo said. "3G networks will be up and running soon and we eagerly anticipate trialing Tieline's 3G module, which would increase the flexibility of where we can broadcast from."

"One of the things that has really impressed us with the Tieline codecs is their reliability," he said. "The phone lines in Bogotá are not always great but the Tieline codec always provides a solid connection. We really put them to the test too because we generally broadcast for at least an hour," he remarked. "We also connected and broadcasted continuously for 15 days at the International Book Fair, which was quite amazing."

"Our technicians love the Tieline codecs because they are simple to use and very reliable. Unlike RF links, there are no line of sight or frequency issues and they are much easier to set up," Camilo said. "We were very impressed in our dealings with Tieline and overall we couldn't be happier. Using Tieline codecs has allowed us to do more remote broadcasts very economically and provide much richer programming to our listeners."