Assembling the top sail of the Deepsea Challenger submersible with GPS receivers, Iridium modems, VHF/AIS transmitters, and acoustic comms transducers in the final stages of pre-dive checks. Here the sub is still labeled with its original "Deep Challenger" moniker.
Assembling the top sail of the Deepsea Challenger submersible with GPS receivers, Iridium modems, VHF/AIS transmitters, and acoustic comms transducers in the final stages of pre-dive checks. Here the sub is still labeled with its original "Deep Challenger" moniker.
