I have an Air2s and would like some feedback on the best beacon to use. Keep in mind that when I fly I am often where there is no service (so those with cell service requirements won't work) and around mountains with elevation up to 13,000 feet or the Grand Canyon. RARELY fly where there is reception no matter what cell is offered. I would really quite a loud dB but not necessarily "impact" only. If it auto-lands safely I still want it to alarm since it is easier to lose RC connection in extreme terrain.