We use two XD-V70L systems for a couple of years now with great satisfaction. Yet yesterday, for the first time, we got into big trouble right before the start of a show at a high school in Amsterdam.
At the end of the day before the show we did a soundcheck: everything OK. We returned the next morning and our sound was completely distorted and we faced audio dropouts on the XD channels as well. Then I noticed the receivers showed RF signals coming in, even though the belt packs were turned off. Up to 4 LED´s! Disconnecting them from my console (and using a pair of good old SM58´s) saved our show.
The local technician told me they had a new 4G router installed (which wasn´t operating during the day of the sound check, hence). He said they faced trouble themselves with their Sennheiser UHF systems since they got this new router.
Q1: I thought I was save from all this frequency hassle, but am I not??? (No probably)
Q2: I understood there was secure/locked/shielded communication between the receiver and the belt pack. Does this new 4G network send such strong signals, it can override/break in anyway? (Yes, apparantly)
Q3: The distortion affected my whole system: everything got distorted (music coming in on other channels as well)! Even though the incoming XD channels were muted! How is this possible?
Q4: What to do to solve it or are we screwed?
If anyone has any suggestions, please let me know.