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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => Pro AV Forum => Topic started by: Rob Spence on March 25, 2018, 09:06:37 PM

Title: HDbase-t
Post by: Rob Spence on March 25, 2018, 09:06:37 PM
How compatible are HD base-t units from different makers?

While keeping costs low, what are good units?

Thanks?



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Title: Re: HDbase-t
Post by: Kevin Rudolph on March 30, 2018, 08:20:00 PM
We have been using monoprice and haven’t had any compatibility issues.  Our projector purchases have steered towards either hdbaset or sdi inputs.

I have heard from various manufacturers that they do not guarantee 100% compatibility, particularly between older and newer units.  That being said, we have gone out of a Roland XS-84 switch into Monoprice or Altona receivers, Moniprice hdbaset 1x4 splitters inti Eike or NEC projectors... never had a problem.

Crestron is coming out with a pretty capable value unit in the DM Lite series - 70m @ 1080p. Still prob 2-3x monoprice cost.

If you try the Monoprice route, carefully select your unit. Their various units max transmission distance varies per unit and aren’t always super obviously labeled.
Title: Re: HDbase-t
Post by: Rob Spence on March 30, 2018, 09:52:21 PM
Thanks for all that.


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Title: Re: HDbase-t
Post by: Jeffrey Knorr - JRKLabs.com on April 08, 2018, 09:26:48 PM
Hi Rob,

I also don't think compatibility is guaranteed.  I did just do a project using Snap AV/Binary brand HD-BaseT transmitters with built-in receivers on Epson projectors.  They're working flawlessly at 720P and ~160' of shielded CAT6 cable between them.

This is the transmitter model that I used and they were fairly reasonably priced:
Binary™ 540 Series 4K Ultra HD HDBaseT Long-Range Transmitter with IR
https://www.snapav.com/shop/en/snapav/binary-trade%3B-540-series-hdbaset-transmitter---330-ft-b-540-tx-330-ir

Jeff
Title: Re: HDbase-t
Post by: Erik Jerde on April 08, 2018, 11:01:47 PM
I've only ever combined mfgrs when going from a Kramer switcher to a Digital Projection projector.  Worked right away, no problems.  Otherwise I tend to stay within one mfgr on both ends 'cause I'm usually buying RX and TX together and it just makes sense to keep things more simple.  That said, it SHOULD work cross mfgr.  Should.  You know how that can go though.  :)
Title: Re: HDbase-t
Post by: Rob Spence on April 08, 2018, 11:29:56 PM
Thanks.


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Title: Re: HDbase-t
Post by: Caleb Dueck on April 09, 2018, 05:29:09 AM
I've only ever combined mfgrs when going from a Kramer switcher to a Digital Projection projector.  Worked right away, no problems.  Otherwise I tend to stay within one mfgr on both ends 'cause I'm usually buying RX and TX together and it just makes sense to keep things more simple.  That said, it SHOULD work cross mfgr.  Should.  You know how that can go though.  :)
As Erik said - should, but not always.  Key Digital was a brand that wouldn't play nice with other brands, it may have been fixed with newer models. 

Power over HDbaseT is not universal.  This is a more common issue when mixing manufacturers. 

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Title: Re: HDbase-t
Post by: Chris Jensen on April 09, 2018, 05:12:00 PM
How it was explained to me was that HDBaseT is standard that is bought into by the manufacturer that wants to use it.  Different levels of the standard are purchased meaning that one person my only buy as deep as video signal where another will go into the control and maybe Ethernet.  I'm not sure if this is correct though.

The other thing that was expressed is that some meet the basic standard and then add their own info going down the line.  The case that was used was Crestron.  Ideally you should be able to take one of their DM wall plates and hook it up to anything, but who knows as they have some other magic going down the line to make it Crestron.

In speaking with Barco about it, I was told hit or miss.  If it works great, if not buy a set.

I have been using SDI for most of my ballroom stuff as when having to split the signal it is pretty easy.  In HDBaseT this gets a bit more expensive to do.  I have a space that I will be doing HDBaseT in and I am going to use these: http://www.theatrixx.com/en/products/video/x-vision/xvision-converters/  I have some of the SDI version and there is nothing I have found close to the build quality for production.  Having Powercons and Ethercons makes me feel so much better than the Blackmagic boxes I was using.  I have had issues with power connectors not seating right. 

Chris

 
Title: Re: HDbase-t
Post by: Erik Jerde on April 10, 2018, 12:58:55 AM
How it was explained to me was that HDBaseT is standard that is bought into by the manufacturer that wants to use it.  Different levels of the standard are purchased meaning that one person my only buy as deep as video signal where another will go into the control and maybe Ethernet.  I'm not sure if this is correct though.

The other thing that was expressed is that some meet the basic standard and then add their own info going down the line.  The case that was used was Crestron.  Ideally you should be able to take one of their DM wall plates and hook it up to anything, but who knows as they have some other magic going down the line to make it Crestron.

In speaking with Barco about it, I was told hit or miss.  If it works great, if not buy a set.

I have been using SDI for most of my ballroom stuff as when having to split the signal it is pretty easy.  In HDBaseT this gets a bit more expensive to do.  I have a space that I will be doing HDBaseT in and I am going to use these: http://www.theatrixx.com/en/products/video/x-vision/xvision-converters/  I have some of the SDI version and there is nothing I have found close to the build quality for production.  Having Powercons and Ethercons makes me feel so much better than the Blackmagic boxes I was using.  I have had issues with power connectors not seating right. 

Chris

You're right Chris, SDI is (until you start tangling with 1080p and above) a lot easier to use than HDBT.  I do like how HDBT maintains HDCP and how you can package RS232 in with it.  In some integration situations those are definite pluses.  I've never wanted for HDBT in event work though.  I'm also working with switchers that strip HDBT in those situations so that's just not an issue.