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Activity Forums Audio No frequencies available – Sennheiser G3

  • No frequencies available – Sennheiser G3

    Posted by Keith Uyed on December 19, 2016 at 9:46 pm

    Hello everyone,

    HAs anyone been in a situation when they so a freq scan and the Sennheiser G3’s show no available channels? I was doing an indoor recording in a bulding that is known for low cell service signal inside and had no free channels show up. Please advise if this is the buildings issue and if I should be using a different system. Thank you!

    Sennheiser G3 Band A used in the Bay Area, California.

    Brian Reynolds replied 9 years, 8 months ago 2 Members · 2 Replies
  • 2 Replies
  • Brian Reynolds

    December 20, 2016 at 8:04 am

    The scan features of wireless systems are VERY BASIC……. Sennheiser, Sony and Lectrosonics do have that facility but there is a better option and that is a scanner.
    For just over a 100$ you can get a very useful tool that will show you what is happening.

    https://rfexplorer.com/models/

  • Brian Reynolds

    December 25, 2016 at 9:25 am

    Keep in mind the Sennheiser units have 20 groups of 12 preset frequencies, so which ever group is selected the scan is done only on those 12.

    So to do a full scan of ‘preset’ frequencies in the receiver unit [select group 1 >>>scan], [then select group 2 >>>> scan],[ then select group 3 >>>scan], etc, etc. To do it all it needs to be 20 times.

    To find frequencies ‘manually’ go to U (user) group and then select / scroll up or down to find a frequency that shows no RF on the frequency indicator.

    For a one system setup its easy but when you need multiple systems you need to be aware of intermods of the RF that will cause problems.

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