8.4
Stress Test of radio communication under water
I show you how a radio trunking is exposed to extreme conditions like as works (talk on two ways) under waterDecember 17, 2025
December 17, 2025
December 17, 2025
December 17, 2025
December 16, 2025
December 16, 2025
December 16, 2025
December 16, 2025
December 16, 2025
December 16, 2025
December 15, 2025
December 15, 2025