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Tech Notes from the Tundra:

We use small PTZ Sony cameras in the domes. Until the temperature reached -10F, we didn’t need heaters. But we learned that polar bear licks freeze on the dome after this temperature. We now have heaters installed.

HD recording is all HDCAM. We use a Sony F900 with Fujinon lenses. A Miranda downcoverter allows the F900 to feed its picture to the live, standard-definition feed to the Internet.

On Buggy One we also have (among many other computers) an Apple 3Ghz ProMac with an AJA Kona card for editing uncompressed HD.  We play HDCAM from a Sony JH3 into the ProMac, edit and compress using Apple's QuickTime H.264.

Our link to the world is via a 45mb digital link that includes three repeaters to get the signal to Churchill (Thank you Sheldon Pollichuk!), and a T-1 via fiber optics to the Internet provided by MTS, Manitoba.  We also maintain a backup DSL connection over the same wireless network.  In the evening, when we are not streaming live, we FTP the H.264 files to Apple.

Power at our Cape Churchill repeater is provided by a 60watt methanol fuel cell. The cell has proven to be the weak link in the system, and we are in the process of installing a new cell.

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