TNTV experience during Nui Va’a race
Tahiti Nui Va’a is a Polynesian canoe race (va’a) which brings together, every two years, the best athletes of this discipline for a tour of the island of Tahiti in three days. The event is divided into three stages ranging in length from 50 to 70 km.
This type of transmissions over the sea have an added difficulty, since the sea acts as an RF mirror, the waves and ripples of the water cause the RF signals to be reflected in an infinite number of disruptive forms, therefore it is very important to have a diversity reception system based on the DVB-T2, which offers really good results against bounced signals.
TNTV uses five transmission kits distributed between three boats and one relay boat, and a total of ten receivers working in diversity. They uses different models of SVP transmitters as they need to be flexible and adapt to the different events that this television broadcast along the year. For this reason, TNTV uses HDT-02 camera transmitters in combination with an external power amplifiers in the boats and also compact HDT-04 high power transmitters or HDT-70 portable transmitters. In reception, they uses HDR-106 diversity receivers.
In this type of events, where the effect of the sea on the RF is unpredictable, it is important to take into account the antennas that are used, that is why TNTV opted for Yagui high gain directional antennas in combination with other panel antennas working in diversity, obtaining an adequate coverage area in each stage.
Tahiti Nui Television (or TNTV) is the first television channel in French Polynesia in terms of audience, they have being working with SVP Broadcast Microwave products over the last 10 years.
“I thank SVP Broadcast Microwave for the quality and stability of the system in DVB T2 during the race of canoes in French Polynesia with distances of 54 km without RF cuts and a perfect reception in FULL HD 1080I and 10 Mbps. ”
Bernard Mochino
RF Engineer, Mochino TV