We have used the EW100's for three video shoots. The first two times, everything worked great with our XL1. However, the third shoot, they stopped working. We checked all connections a zillion times, checked batteries, checked the XL1 to make sure the menu items were correct, but still nothing.

The weird this is that when we started the shoot, they were working. Then about 1 minute into the shoot they just stopped receiving the signal. Sometimes in turning them off and back on they would start to receive the signal for like 1 or 2 seconds, and then back to nothing. No signal at all.

We aren't sure if it is the camera, the Sennheisers, connectors, or what?

Now, when we try to get them to use back in our studio, everything works fine again. We are completely baffled. We can't return anything because they are working. But we don't want to get back on another set and have them start to fail again....

Anyone ever had this problem???? What in the world happenend?

Thanks so much!

I just sent mine in for service, it was experiencing intermittent problems somewhat similar to those you describe. They replaced an RF board in the transmitter. It may be worth calling them, they put me on with one of their techs (Dominic, I think) and he was extremely helpful.

Whoof, that's scary! Considering I am just about to lay out $500 for one of these.

Fortunately, Sennheiser is just 15 miles away from the house, I can drop the thing off if I have to.

I just ran into a batch of bad batteries. Fresh out of the package and they were duds for wireless use. OK for radio control toys though.

on top of that being UHF, sometimes police radios, televisoin and UHF radios can interefere....

id say that now that you DONT have an issue, it may be that...

Fortunately, this model has 1024 frequencies (with 4 user-changeable presets), so you can move to a quiet channel if you encounter RFI.