Sennheiser ew100 G3 Mic Problems

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Katie Guzzi

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Jun 10, 2017
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Hello All! Please let me know if this is in the wrong place or not, I am new to this forum.

I have Sennheiser mics (ew100 G3 series) and have recently been having a problem with 4 of them. They cut in and out but not a clear cut, more of a static cut in and out. It is not the element or the connected antenna on the receiver end and it is very random. I have also messed with different frequencies and that still has not done the job. It is also not the connection from the board to the receiver. It is also a weird chunk of them (#2,4,6,8) that are having this problem.

Could it be something within the transmitter pack itself? Is it a loose connection in the pack?

Please let let me know what other information you need.

Thank you!
 
Katie Guzzi said:
Hello All! Please let me know if this is in the wrong place or not, I am new to this forum.

I have Sennheiser mics (ew100 G3 series) and have recently been having a problem with 4 of them. They cut in and out but not a clear cut, more of a static cut in and out. It is not the element or the connected antenna on the receiver end and it is very random. I have also messed with different frequencies and that still has not done the job. It is also not the connection from the board to the receiver. It is also a weird chunk of them (#2,4,6,8) that are having this problem.

Could it be something within the transmitter pack itself? Is it a loose connection in the pack?

Please let let me know what other information you need.

Thank you!
Click to expand...

How many wireless mics are you using and are they all the same model Sennheiser? Are they all handheld or bodypacks or a mix? How long have you had this problem is it a brand new problem. When a new problem happens the big question is, what has changed? If you only have one of these mics on at a time do you still have the problem with only one mic? And have you tested it this way, testing them with only one on at a time?

Is this in an installed sound system or is this portable? How is this all physically configured? Where are the wireless receivers in relation to the stage Is this all in a rack?? Are you using an antenna splitter? If yes what are you using? Is there any other wireless in use? Like an In Ear Monitor system? Or even 2-way radios?

What are the frequency bands of the wireless? Are they all in the same band or in different bands? Where are you located? Are you in the USA? If in the USA what zip code or geo location are you using this in? And exactly what frequencies are they each tuned to now? I can enter this information in a frequency coordination software are see if there is any issues with the tuning.

With all of this information we can probably give you some answers or things to try. Also a picture of how your receivers are mounted or physically laid out can help.
 
The usual term for this is that your wireless are "taking hits" meaning that there is interference from other wireless transmitters either on the same frequencies as your mics or a combination of other frequencies that combine in ways that cause interference. There are plenty of ways that wireless mics can be impacted by the cold, cruel world but one way to make sure you're as interference proof as possible is to set the receiver to do a frequency scan every time you prepare to use them and set the mic transmitters to match the frequencies that the receivers have decided are safe to use. Its a few minutes of added set up time but essential to reliable operation as less and less bandwidth is available for wireless mic use with each passing day.

Katie Guzzi said:
... They cut in and out but not a clear cut, more of a static cut in and out. ...
Click to expand...

 
I can thoroughly recommend Shure Wireless Workbench for doing a frequency plot. Despite who created it, it understands many other manufacturers' gear too, including Sennheiser EW. Just because individual frequencies are "clear" doesn't mean that your combination of eight (?) frequencies is valid, as the sidebands of one can overlap with another and still cause the kind of problems you are hearing. Not sure where you are in the world, but certainly for the US you can enter your Zip Code and it will also consider the local TV stations and create a set of frequencies that not only avoid each other but also hopefully any external interference. It's a bit non-intuitive to use, but stick with it.
 
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