I have a Rode NTG-2 microphone and strangely I am finding that suddenly it is barely picking up sound. I have to boost the levels to maximum in my beachtek and speak very closely to it for it to function with somewhat normal looking levels. I do get levels when I turn the beachtek down but they are very faint by comparison to what I should be getting. Now impossible to pick anything up even a few feet away. I have changed the microphones battery, but I have absolutely no idea what could be going on otherwise. Any ideas out there?