Made a quick test of the oral-nasal mask mike, which will be used to communicate with whomever I can bribe into helping me with the suit test; the microphone, installed inside the mask (in the photo above it's just outside the mask, on an earlier test), routes communications to a regular walkie-talkie that I'll wear inside the pressure suit; when I talk into the mike, my words will be picked up by the suit assistant's walkie-talkie, and of course I'll wear earphones so I can hear them talk through their walkie-talkie. The mike sounds good enough (at least for the ground tests), as you can hear in this mp3 file. Now I need to figure out a way to permanently install the mike in the mask with an airtight fitting. For the actual flights, communications will be routed not to a walkie-talkie, of course, but to a VHF radio for communication with the ground, and/or an aviation band radio for communication with other aircraft.
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Useful post!!!!!!!!!Unlicensed Walkie Talkies would be the type of walkie talkie that you can buy off the shelf at any electronics store. While there is an extremely small chance of it, you can run into situations with unlicensed walkie talkies where unrelated walkie talkie users using completely different walkie talkies can over ride each other and cause a confusing situation. This is precisely the reason why licensed walkie talkies are available for professionals who can't afford the risk of these types of situations.
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