I'm having a 'problem' with wireless sets we use. (Sennheiser EW100 G3)
Whenever it's directly connected to one of our ENG broadcast camera's they work just fine. However, when the wireless receiver is connected to my SQN mixer wich connects to the same camera they seem to be a lot more sensetive to interference.
It always starts promising, once turned on; no interference,... yet. But always when we start filming the interference kicks in. It starts with some minimal distortion not even noticable. But it gets louder and more severe after the first prominent interference. Bursts of noise, short gaps with no signal, distortion, etc. Often the interference is loud enough to work the mixers' limiter! Even changing frequencies doesn't help anymore? It's like the wireless set has gone crazy.
I know it sounds weird that the SQN could be the problem, but it happened a couple times before with different EW100 G3 sets, I couldn't solve the interference and switched to the camera's internal wireless Sennheiser EK3041 thinking the problem was with the wireless EW100 G3, or just some RF in the air. But now I'm totally clueless.
Same location, same wireless, same frequency (which should be free according to Sennheiser Frequency app), same input settings (mic, no phantom) the person with the wireless mic is only 5 meters away, the only difference is the mixer!? Because when the problem occured, we directly plugged in the receiver in the camera and the problem was solved. Or is it not a mixer thing but a camera thing?
Any ideas / solutions / workflows or anybody who experienced this before?
This is C02sounds, posting via new account. Thanks for the replies NoiseJockey & AJ Henderson
Well switching frequencies doesn't help. Like I said, the frequency I'm using should be free according to Sennheiser Freq App. And the same frequency used when directly hooked up into the camera works just perfect.
Changing batteries on the wireless set didn't help either.
Metal objects around the mixer; RE50 (not plugged-in) in front compartment of a porta-brace, XLR cable for Sennheiser 416 (plugged-in 48v) in CH1, Sennheiser EW100 G3 receiver CH2, there's a small monitor for playback/live view mounted on the bag.
The problem is somewhere in the mixing bag, AJ Henderson you're correct that there are too many variable. I was just wondering if someone ever had experienced this before and could be 'easily' explained. I'll try to recreate the situation again and try to remove/check parts in the chain.
Thanks all for your replies