There's a few different options on the market for communications in wilderness areas. Here's a roadtest of the Yellowbrick two-way satellite ... ... <看更多>
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There's a few different options on the market for communications in wilderness areas. Here's a roadtest of the Yellowbrick two-way satellite ... ... <看更多>
YB Tracking | Truly global satellite tracking beacons for yacht racing, adventures, treks, expeditions an... YB Tracking - Iridium Satellite Tracking - Blog ... ... <看更多>