ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: [1] 2  All   Go Down

Author Topic: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only  (Read 2680 times)

TomBoisseau

  • Full Member
  • ***
  • Offline Offline
  • Posts: 245
Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« on: March 25, 2021, 08:17:47 AM »

I have a couple of the Shure AD4Q receivers in a rack with two of the stock antennas connected to the first AD4Q, and then cascaded from there to the second AD4Q.  For some reason the RF level on the "A" side is considerably lower than the "B" side on all 4 of the channels... ON THE FIRST AD4Q ONLY!  The second AD4Q is fine.  I can't figure out why.  Is there possibly a menu item for this that I'm overlooking?

Thanks,
Tom
Logged

Ike Zimbel

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1057
  • I'm not a newbie, I just play one on the internet!
    • Zimbel Audio Productions
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #1 on: March 25, 2021, 11:48:25 AM »

I have a couple of the Shure AD4Q receivers in a rack with two of the stock antennas connected to the first AD4Q, and then cascaded from there to the second AD4Q.  For some reason the RF level on the "A" side is considerably lower than the "B" side on all 4 of the channels... ON THE FIRST AD4Q ONLY!  The second AD4Q is fine.  I can't figure out why.  Is there possibly a menu item for this that I'm overlooking?

Thanks,
Tom
I'm not sure, but I don't recall an antenna sensitivity setting in there. Are you absolutely sure that you are on the correct BNC's for "In" and "Cascade" (not sure off the top of my head if those are the correct labels...). It does make a difference as they are not just paralleled BNC's. The feed through is a buffered output.
Logged
~Ike Zimbel~
Wireless frequency coordination specialist and educator.
Manufacturer's Representative (Canada)
Radio Active Designs
Pro Audio equipment repair and upgrades.
~416-720-0887~
ca.linkedin.com/pub/ike-zimbel/48/aa1/266

Keith Broughton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3667
  • Toronto
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #2 on: March 25, 2021, 02:39:59 PM »

Disconnect all antenna cables from both units.
Take one antenna and plug into the A side of unit one then the B side.
Repeat with unit 2 and report results.
Logged
I don't care enough to be apathetic

TomBoisseau

  • Full Member
  • ***
  • Offline Offline
  • Posts: 245
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #3 on: March 25, 2021, 03:51:57 PM »

Disconnect all antenna cables from both units.
Take one antenna and plug into the A side of unit one then the B side.
Repeat with unit 2 and report results.

Keith,

I appreciate your trouble shooting suggestions, but I tried all that before I posted here.

Tom
Logged

Henry Cohen

  • Moderator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1220
  • Westchester Co., NY, USA
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #4 on: March 25, 2021, 05:17:17 PM »

I appreciate your trouble shooting suggestions, but I tried all that before I posted here.

Given the symptoms and troubleshooting, it certainly sounds like there's an issue post the internal 2-way cascade splitter's port feeding the 4-way splitter for the individual "A" side receivers. Contact Shure for service.

There is no antenna gain adjustment in the receiver configuration menu. 
Logged
Henry Cohen

CP Communications    www.cpcomms.com
Radio Active Designs   www.radioactiverf.com

Kevin Maxwell

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1792
  • USA SW CT 46miles from MidTown Manhattan ATCF
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #5 on: March 25, 2021, 06:53:08 PM »

When you say a couple do you mean 2 of them? Have you tried swapping the top and bottom one and see if it behaves the same way? Is it always the first one that has the antenna directly plugged into it that is lower in FR level?
Logged

Keith Broughton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3667
  • Toronto
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #6 on: March 26, 2021, 06:33:58 AM »

Keith,

I appreciate your trouble shooting suggestions, but I tried all that before I posted here.

Tom

I was thinking along the same lines as Henry but wanted to make sure the fault was correctly assessed.
Logged
I don't care enough to be apathetic

TomBoisseau

  • Full Member
  • ***
  • Offline Offline
  • Posts: 245
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #7 on: April 15, 2021, 06:38:36 PM »

Well it wasn't my imagination, a bad antenna, bad cable, or some hidden menu item.  I sent the unit into Shure last week and they confirmed with me Monday that they will need to replace the main PCB.  Apparently, from my conversation with them last week, this is not something they have seen much of before, if at all.  Anyway, it looks like things are getting resolved and I'll probably have the unit back sometime next week.  By the way, Shure has been great to deal with throughout this whole ordeal.  I really do like their customer support and, frankly that why I choose the Shure wireless over Sennheiser. 

Tom
Logged

Keith Broughton

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3667
  • Toronto
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #8 on: April 15, 2021, 07:24:01 PM »

Well it wasn't my imagination, a bad antenna, bad cable, or some hidden menu item.  I sent the unit into Shure last week and they confirmed with me Monday that they will need to replace the main PCB.  Apparently, from my conversation with them last week, this is not something they have seen much of before, if at all.  Anyway, it looks like things are getting resolved and I'll probably have the unit back sometime next week.  By the way, Shure has been great to deal with throughout this whole ordeal.  I really do like their customer support and, frankly that why I choose the Shure wireless over Sennheiser. 

Tom
Great to hear you are getting good support!
Problem solved on warranty?
Logged
I don't care enough to be apathetic

Steve Williams

  • Newbie
  • *
  • Offline Offline
  • Posts: 1
  • Steve Williams
Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #9 on: October 26, 2023, 09:04:33 PM »

Well it wasn't my imagination, a bad antenna, bad cable, or some hidden menu item.  I sent the unit into Shure last week and they confirmed with me Monday that they will need to replace the main PCB.  Apparently, from my conversation with them last week, this is not something they have seen much of before, if at all.  Anyway, it looks like things are getting resolved and I'll probably have the unit back sometime next week.  By the way, Shure has been great to deal with throughout this whole ordeal.  I really do like their customer support and, frankly that why I choose the Shure wireless over Sennheiser. 

Tom

Hi Tom, I hope you're able to still see this even though it was a couple years ago.

I think I'm having a similar issue. The A antenna is full level. The B antenna signal is non existent or very low. I swapped the antenna from A to B on the back of the AD4Q and still low or no level on B.

Is there anyway you still have your case number I can provide to Shure when I contact them so they can have a reference? Thanks.
Logged

ProSoundWeb Community

Re: Shure Axient Digital AD4Q Receiver - RF Low on "A" Side Only
« Reply #9 on: October 26, 2023, 09:04:33 PM »


Pages: [1] 2  All   Go Up
 



Site Hosted By Ashdown Technologies, Inc.

Page created in 0.037 seconds with 23 queries.