Skip navigation
Up to Discussions in XD-V Digital Wireless Microphones
912 Views 2 Replies Latest reply: Sep 8, 2011 12:06 PM by zakos RSS
zakos Just Startin'
zakos
2 posts since
Sep 4, 2011
Currently Being Moderated

Sep 4, 2011 3:44 PM

XD-V 70L hissing when bodypack  away from body

Hi,

 

I'd been using my unit for a couple of weeks when I ran into this problem.

 

I was trying to use it during the live recording of a theater show for a spot mic ; the transmitter was equipped with a DPA 4099 + DAD 6010 adapter and hidden in the stage set.

 

The problem was, whenever my assistant got away from the mic, I got a continuous hissing sound, which disappeared when he got close enough to the transmitter or even better touched it. The sound coming from the mircrophone was still there, and the RF looked good on the receiver.

 

Is this normal behaviour ? Should I send the unit for repair ?

 

The problem is not easily reproduceable (probably triggered by a hostile RF environment) so I can't get a recording of the noise right now, but I'll try if it can help. It sure behaved like there was RF interference on the analog level.

 

Thanks for any advice,

 

Zak.

Tags: xd-v70l, xdv70
  • dboomer Line 6 Support
    dboomer
    1,997 posts since
    Oct 13, 2008
    Currently Being Moderated
    Sep 5, 2011 9:16 AM (in response to zakos)
    Re: XD-V 70L hissing when bodypack  away from body

    RF interference to XD-V will not cause noise like it does in analog systems.  What you are describing sounds like you have a AGC circuit somewhere in the chain.  Noise coming up when there is no sound in the mic would be a symptom of this.

     

    Getting the noise to go away when you touch it sounds like you could have a bad cable or adaptor with the DPA. Does the same thing happen if you use the factory supplied mic?

     

    You could also experiment with switching the "Environment Filter" to a different setting.

    • zakos Just Startin'
      zakos
      2 posts since
      Sep 4, 2011
      Currently Being Moderated
      Sep 8, 2011 12:06 PM (in response to dboomer)
      Re: XD-V 70L hissing when bodypack  away from body

      Hi,

       

      Thanks for answering.

       

      I'm afraid my message wasn't clear. The noise happened when my assistant was away from the transmitter (not the mic, sorry for my mistake), regardless of the sound coming to the microphone (which was in that case taped to a piece of wood). When he got close enough (1 inch)  or touched the transmitter, the interference disappeared.

       

       

      Next time I'll try to change the mics and adapters and I'll let you know.

       

      Regards

More Like This

  • Retrieving data ...

Bookmarked By (0)

Legend

  • Correct Answers - 5 points
  • Helpful Answers - 3 points