ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 [2]  All   Go Down

Author Topic: Multiple 2.4ghz microphone channels  (Read 4909 times)

Stephen Swaffer

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2254
Re: Multiple 2.4ghz microphone channels
« Reply #10 on: January 16, 2017, 06:42:14 pm »

I guess the point I was making-knowing you are looking at Sennheiser not Shure and having no desire to bad mouth Shure is that the problem is not the mics, but the environment.  It sounds like they use a similar method-perhaps Sennheiser has a better implementation, but any mic that adjusts it level/frequency trying to avoid interference is going to have the same problems in a busy WiFi environment.  And anymore, you don't have true test of the RF situation (at least in the 2.4G range) until the audience arrives-which as inconvenient time to realize things aren't linking and playing nice.
Logged
Steve Swaffer

Don Boomer

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 288
    • RF Venue
Re: Multiple 2.4ghz microphone channels
« Reply #11 on: January 16, 2017, 07:30:28 pm »

I can really only speak to the Line 6 systems. Wi-fi itself doesn't interfere with them (in RF2 mode). But wi-fi too close to the receiver's antennas may overload the input section. V75s are much better at this than V70s were (different filtering). I've used 8 of them sitting about 10' underneath 2 enterprise access points with no issues.

Picking your antennas carefully can help a lot. If you can focus your antenna pickup right to where your transmitters are and no where else it can help a lot. But that's not always possible. The Line 6 antennas are essentially 360 and 180 so they may bee too broad. The RFV CP2.4 is about 68. Just have to match the tool to the job.

As I said before I would definitely be using a distro if all/most of your mics are in one place. An that can be a problem for Line 6 systems ... near/far issues. So if you have 6 mics on stage and one rover, that rover wants to be on its own antennas. But if all your mics are relatively in the same place the Line 6 has a big advantage in that it calculates the distance and the receiver sensitivity tracks that distance. Very cool most of the time.
Logged
Don Boomer
RF Venue

Xiang Cao

  • Newbie
  • *
  • Offline Offline
  • Posts: 21
Re: Multiple 2.4ghz microphone channels
« Reply #12 on: January 22, 2017, 08:54:58 pm »

check out the new glxd advanced system:

https://www.youtube.com/watch?v=EAWFjlrqlSk

Will this help?
Logged

Keith Broughton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3164
  • Toronto
Re: Multiple 2.4ghz microphone channels
« Reply #13 on: January 24, 2017, 08:07:54 am »



Sent from my SM-T710 using Tapatalk
I am surprised that Sennheiser would suggest the rear antenna option!
The first solution seems OK and would be even better if the receivers were offset, odds on left, evens on right.
The big problem with rack mounted antennas is that they usually end up sitting on the floor or some other place that is too low.
Whatever antenna solution you use, make sure they are up high enough for line of sight to the transmitters.
2.4 gig is not "special" in any way. Same as any RF. Best practices still apply.
Logged
I don't care enough to be apathetic

Jeremy Young

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 443
  • DSL SM80, JTR OS-Pro/C212Pro, A&H iLive T112/R72
    • Brown Bear Sound
Re: Multiple 2.4ghz microphone channels
« Reply #14 on: February 11, 2017, 07:14:23 pm »

This is where the Audio-Technica System 10 Pro comes in, they enable you to remote locate the receivers over cat5 cable for optimal placement. I've never used them personally, but I'm eyeing them up for a reluctant investment to meet my customers requests for wireless. I much prefer copper. I can't seem to reliably rent more than 1 channel on short notice.

My main fear with any 2.4ghz system is proximity to my wireless access point.  They (receivers) will always need to be patched to my idr32 rack on stage, which is where my 5ghz netgear lives currently.  If I keep my 2.4ghz turned off on the mixer access point, would I be safe to locate four channels of 2.4ghz wireless receivers within 12"?  Would an RF explorer and a rented 2.4ghz wireless mic be the right tools to test that with? Or are these hopeless tasks in reality since the venue and audience are the biggest offenders/variables?

I work with a band that runs a single shure glxd system and the only issue we've experienced so far was line-of-sight related and easily solved.

Sorry to derail the thread slightly but it seems I may have stumbled on the right folks to ask. Anyone have any clue what the future density of 2.4ghz might look like? Think ballrooms in hotels and urban outdoor venues like streets and squares in a downtown environment.
Logged
Brown Bear Sound
Victoria BC Canada

ProSoundWeb Community

Re: Multiple 2.4ghz microphone channels
« Reply #14 on: February 11, 2017, 07:14:23 pm »


Pages: 1 [2]  All   Go Up
 



Page created in 0.032 seconds with 25 queries.