Custom Model 113 Argos beacon optimized for high reliability Antarctic service. Kevlar reinforced "mushroom" radome. 100 % redundant system with two independent transmitters, lithium battery packs, and antennas. Transmitter schedules are time synchronized by removal of single external activation magnet, allowing the two transmitters to "trade off" operation on alternate days while remaining completely independent.
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Custom modified submersible Argos beacon Model 113c.