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667 Views 5 Replies Latest reply: Jun 27, 2011 12:48 PM by dboomer RSS
fdengel Just Startin' 3 posts since
Oct 12, 43439
Currently Being Moderated

Jun 21, 2011 5:57 AM

Antenna placement

We plan to buy a couple of XD-V70 Systems in the next weeks to replace our Sennheiser EW500 G2 Systems we currently use.

And therefore I have a question regarding the placement of the antennas in our room.

Our room is about 60 feet long and 40 foot wide. FOH with the receivers is located in the back, stage in front.

 

As a rule of thumb I learned, that for the Sennheiser 800MHz Systems:

1. the antenna paddels should be located not too far away from each other because of limiting the True-Diversity feature, if the antennas receiving much different signals (e.g. left and right sidewall of the room)

2. it's better to place the antennas at a greater but equal distance to the transmitter, than closer but at unequal distances (e.g. at the sides of the stage when one transmitter is very close to one antenna and another one more far away) because it also limits the ability of the receiver to use True-Diversity.

 

How is this with the Line6 System? In the Advanced Guide I read, one possible placement of the antenna paddels was to each side of the stage. Are there any diversity problems, using more than one transmitter? Or are the guidelines described above only for analog systems and not existing anymore in the digital world?

 

And a second part of the quesion is, what is the better placement:

In the back centerof the room (height about 10 feet), with short antenna cable length to the receiver (15 feet) but people wearing the beltpack on their sides or back

versus

placing the paddels to the left and right side of the stage (or one behind the stage) with much longer antenna cable length (80 feet) but much shorter and better positions in relation to the transmitter?

 

Thanks for your help!

  Frank

  • dboomer Line 6 Support 1,997 posts since
    Oct 13, 2008
    Currently Being Moderated
    Jun 22, 2011 1:37 PM (in response to fdengel)
    Re: Antenna placement

    There is only a minimum distance required between antennas (about 5") but they work best as long as they are about 3' apart.  Other than that there is no requirement that the be equidistant or matched in any way.  They only need to be in range and generally closer to the transmitter is better than farther from it.

     

    If these will be used with actors I would recommend you start with one upstage near the center and one in the wings (either one).  As always you should walk test the system. 

     

    Do the actors ever leave the stage?

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