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Wireless Mics: Channel vs Frequency

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  • Wireless Mics: Channel vs Frequency

    Hello. I want to pick up two Sennheiser EW 112 wireless systems.  When purchasing, they give you the choice of several channels such as A, B, G. However each system is suppose to have 1680 tunable frequencies.  Does it matter if I buy two A wireless systems as long asI tune them to two different frequencies? Not understanding the "channels". Thank you.

    AMPS/CABS:Bogner Alchemist - Marshall JCM 800 Lead 1960GUITARS:Fender Telecaster - Ibanez AX-1220 - Ibanez AEF-20 Acoustic - Ibanez SR-405 BassRECORDING:Presonus Firepod - PODxt - Behringer BCF2000 - Sonar Producer - Intel i7 920 O.C. - 12GB RAM

  • #2

    sadlytragic wrote:

    Hello. I want to pick up two Sennheiser EW 112 wireless systems.  When purchasing, they give you the choice of several channels such as A, B, G. However each system is suppose to have 1680 tunable frequencies.  Does it matter if I buy two A wireless systems as long asI tune them to two different frequencies? Not understanding the "channels". Thank you.


    What matters is that the available channels work in your geographic location.  That is mostly determined by what broadcast TV stations are in your area.  If you are in NYC or LA it can be very difficult to find frequencies and if you are on top of a mountain in North Dakota it will be easier.

     

    So where are you?

    Don Boomer

    Comment


    • sadlytragic
      sadlytragic commented
      Editing a comment
      Jackson, Michigan. There's basically nothing around here as far as I know except a couple local channels about 40miles north.

    • dbMontana
      dbMontana commented
      Editing a comment

      dboomer wrote:
        --snip--
      .... and if you are on top of a mountain in North Dakota it will be easier.

      Ummm... ???     <wink>!

       


  • #3

    You're basically correct, each band has a bunch of frequencies you could tune to. So A-band is low in the UHF range, G-band a bit higher, and B-band up near the top of the UHF band.


    Confusing things a little further, each unit will have Banks and Channels, which are pre-coordinated frequencies. You should never just randomly pick frequencies or set everything say 1 MHz apart, because you may end up with weird intermodulation frequency problems.


    If you really want to go nuts, download Sennheiser's frequency coordination software: http://en-us.sennheiser.com/service-support/services/sifm-software

    Or go to Shure and download Wireless Workbench, which will also work with Sennheiser stuff.

     

    "I would kill the children of a thousand planets, just to see you smile"

    Comment


    • trevcda
      trevcda commented
      Editing a comment

      Just curious- are "bands" universal or are they manufacturer dependant?


  • #4

    Thank you for the help, really appreciate it! That makes a lot more sense now actually. Placed my order! What's awesome is that MusiciansFriend has 15% off a single item, I asked about it not working (turns out Sennheiser is excluded) and they gave me a 15% off ENTIRE ORDER coupon that did include Sennheiser. haha. Then I used BillMeLater and got 4% back. To top it all off...Sennheiser has a mail-in rebate for $50 per wireless unit, so another $100. Then again....I'm sure we all know how well mail-in rebates can go sometimes....All in all I saved around $330. :smiley-bounce022:

     

    AMPS/CABS:Bogner Alchemist - Marshall JCM 800 Lead 1960GUITARS:Fender Telecaster - Ibanez AX-1220 - Ibanez AEF-20 Acoustic - Ibanez SR-405 BassRECORDING:Presonus Firepod - PODxt - Behringer BCF2000 - Sonar Producer - Intel i7 920 O.C. - 12GB RAM

    Comment



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