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Topic:
Atlona 4k 18 gig balun - are they?
This thread has 10 replies. Displaying all posts.
Post 1 made on Wednesday August 22, 2018 at 22:09
cgav
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[Link: atlona.com]

Is this product truly 18gig? How can it be when HDBaseT chips are only 10 gig?
Post 2 made on Wednesday August 22, 2018 at 22:49
SB Smarthomes
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Says that it uses compression...
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Santa Barbara Smarthomes
OP | Post 3 made on Wednesday August 22, 2018 at 23:01
cgav
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But under bandwidth it days 18gbps. Kind of misleading and shady to not have the real bandwidth anywhere.
Post 4 made on Thursday August 23, 2018 at 16:51
kpeters
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Here's the kicker that will really get you - It "supports" 18Gbps, meaning it takes 18G in, compresses/throws about half of it away, then adds filler data at the back end to inflate it back up to 18! Damn marketing terms!

You are fully correct in that the transmission line cannot handle 18Gbps of data.

If you want an uncompressed extension solution, check out Inneos's Optical adapters.
Post 5 made on Thursday August 23, 2018 at 17:25
Brentm
Ethereal Home Theater
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Short Story!
HDBaseT extenders are still shipping data at less than 10 G (limitation of the wire).
As stated mush compression is required.
Not all HDBaseT compression is created equal, look at a sample picture if possible.
Brent McCall
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Ethereal (386) 846-7264 Cell
Post 6 made on Thursday August 23, 2018 at 19:26
Jeff at Zektor
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Brent and I talk about this all the time. There's a lot of "specmanship" that is great marketing but not reality.

HDBaseT has a max capability of 10.2G bandwidth ceiling. In order to send what Hollywood deems as "high value" content in Ultra HD Premium or HDR10, it requires a minimum of 4:2:0 10 bit. The only way to get this stated 18G capability is with compression.

The two standards are display stream compression (DSC) or color sample compression (CSC).

Many companies state 4:4:4, etc and don't say what bit rate they support.
Jeff Haynes
The CA Guy
Coastal Source [email protected] 619-889-3700
Post 7 made on Thursday August 23, 2018 at 21:30
Dave in Balto
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I guarantee that 99% of clients don’t know the difference.
Hey, careful man, there's a beverage here!

The Dude
Post 8 made on Thursday August 23, 2018 at 22:13
Fins
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On August 23, 2018 at 21:30, Dave in Balto said...
I guarantee that 99% of clients don’t know the difference.

I’d put money on 99% of customers that buy a 4K TV think it makes everything 4K no matter what the input signal is.
Civil War reenactment is LARPing for people with no imagination.

Post 9 made on Thursday August 23, 2018 at 23:32
Ernie Gilman
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On August 23, 2018 at 21:30, Dave in Balto said...
I guarantee that 99% of clients don’t know the difference.

Probably 120% of them: they themselves and their investment guru relatives and friends who are always telling you how to do things.
A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
OP | Post 10 made on Friday August 24, 2018 at 10:35
cgav
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I get that it's compression. I just wish they were more open about the fact it's still just 10gig hdbaset. I have spoken with several smart technicians who believe it's actually an 18gig bandwidth, mostly because they say that it is.
Post 11 made on Friday August 24, 2018 at 13:53
Brad Humphrey
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On August 24, 2018 at 10:35, cgav said...
I get that it's compression. I just wish they were more open about the fact it's still just 10gig hdbaset. I have spoken with several smart technicians who believe it's actually an 18gig bandwidth, mostly because they say that it is.

You just answered the question about why they do it. Because someone will buy it.

Reminds me of a conversation with a really stupid customer once. I was called out on a service call to diagnose why the picture on the TV would cut in & out. The equipment was in a closet 40' away from the TV. Customer had ran a cheap 50' generic HDMI cable he got from ebay for like $20 or something.
When I said the crap cable could not send a signal 50', he argued till he was blue in the face that it would. His exact words "Why would they build it if it wouldn't work". My instant reply [exact words] "Well, you bought it didn't you!"


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