Sennheiser EW G4 Question

[drubarlow]

Hi Fractal fam, happy Wednesday to you all! I'm using a Sennheiser EW G4 instrument pack for instrument signal input into my AE3, plugged directly into Input 1. Everything works great, but when I turn the transmitter pack off the receiver starts hissing loudly through the active output.

Signal chain is this:
Sennhesier EW G4 to Input 1
Electric uses Output 1 to FOH
Acoustic uses Output 2 to FOH

I also use Sennheiser EW G3 handheld wireless mics for vocals (routed differently), but when I turn off my handheld mic (aka transmitter), those mics don't hiss. Any ideas why my instrument mic starts hissing when the transmitter is turned off, but the vocal mics don't?

 

[drubarlow]

No ideas on this in the Fractal fam?

 

[chris]

i used a G3 xlr and body pack receiver to eliminate a 100 foot cable run for mains at a sound gig once. same thing. i sound checked, everything was fine.

i turned off the transmitter to save battery and it hissed so loud.

try a different frequency (i didn't have time to), but this may just be how it works.

 

[DavezHear]

Shut off the transmitter so its making noise. In the receivers menu, find the Squelch setting and set it to a higher number until the noise goes away. In most cases this will work unless the frequency your using is unusually noisy.

 

[drubarlow]

@DavezHear I figured it out. The receiver was picking up interference when the transmitter was turned off, so I just had to search for a clear channel.

 

[Sleestak]

I have had the same experience with my Sennheiser G4 system. When on tour, I scan for clear channels in each venue. I sometimes bump up the squelch if the airwaves seem especially crowded - happens a lot at festivals where everyone is using wireless on multiple stages.