Thursday, July 24, 2008

Halfway Party on Cirrus on Video

It was a challenge to reduce the video to a format, which could be transmitted through the airwaves. Our main data connection is the short wave, SSB (Single Side Band) radio, which is connected to a special modem. It is similar to a connection via telephone modem on land, only that it is about 50 times slower, transmitting at about 1000 baud, and oftentimes less. The information we can transfer is therefore very limited. We also have a satellite phone, which can be used in a similar way, but it isn't much faster either. And I tried very hard to use the sat phone so to not hog the airwaves, but it wouldn't work. Finally the video made it through the short wave radio. I believe Cirrus during the Transpac 2007 race (Los Angeles to Hawaii) was the first sailing vessel to have transmitted a video in this kind, and let me know, but I believe this is unique in the Pacific Cup 2008? The video compression technology is similar to what is used e.g. in Youtube.
Enjoy.

Aloha, Ulli

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