Hello Johnny–
Thanks for the swift response. I can follow the logic of leaving the battery in the chamber, but I also tested out a Rode NTG-3, which has no battery (only phantom power). That one did not work with the JVC gy-hm100. Same thing–a whole lot of crackle. Is it the JVC that’s the problem, or the Rode mics, or the combination?
Cheers, Michael