I currently use a pair of FRS handsets in drybags to teach with. A small one on the helmet and a larger unit for the instructor. This solution is cheap, but a bit bulky [for the unit attached to the helmet] and there's always the chance that the drybag doesn't live up to its name. The student can't respond, but at least the student can hear the instructor.
Other than the BbTALKIN, anyone know of any other waterproof Bluetooth radios? I keep waiting for something inexpensive and waterproof to come out of the motorcycle touring market...
Maybe try hacking the radio, maybe crack open the case and taking out the electronics and consider the best arrangements on or in the helmet and then figure out how to secure them an waterproof them. I’ve had good luck using silicon sealer from the hardware store to as a glue and waterproof material that might work. A GoPro case with some hacking might work, also heatshrink wire wrap tubing, or maybe go to the hardware store and ask them what might work for what you want to do since they have a lot of new products, I would think the antenna will need to stick up to get decent reception which I think is limited to line of sight.
I was in an REI store recently and I think they had some push to talk buttons that could be attached to radios which might work for the student to transmit.
Search for FRS hacking to get ideas, Google: hacking frs radio
Hi! Any progress on the search for affordable/ practical radios? I'm also curious - I'd like to be able to communicate with friends out on the water (not for teaching purposes). I don't see many people using radios on the water, other than teachers/ students... Thanks!
Until I find smaller radios... I'm still using my bagged FRS radios. Would also be nice if they were any RFS radio options which were truly rated IPX7 or 8. Think I'm going to modify a helmet(s) [aka carve away some of the plastic] in order to make a better niche for the radio to be strapped into. Right now, my setup looks like... a bagged radio strapped to a helmet, a bit unwieldy.
And just to clarify, I'm doing this as 1-way communication: one radio is handheld and used to talk to the other helmet mounted radio. The helmeted person can only listen, not communicate back. Two way comms would be awesome, but I'm not there yet...