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· Save the Clock Tower!!
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Realistically, we must not confuse what DIRECTV chose to do with what MoCA might be able to do. DECA I is capable of around 100Mbps while DECA II is good for 175Mbps (both half-duplex). Radio bitrates aren't the same as effective data transmission rates (i.e. 36MHz Ka isn't 50% faster than 24MHz Ku).

This is important in a half-duplex system as there can be exactly one conversation going on at any one time and every device must share one channel through a negotiation process.
Of course, the link in your post from years ago shows that the speed is 400Mbps, not 175Mbps.


The MoCA Alliance has formally announced the MoCA 2.0 standard today:

News Releases :: SMC Networks Joins MoCA

Key elements are significantly higher data rates, lower error rates and power-saving sleep modes.
While this information originated from CES 2011....I wanted to share this specifically to the DirecTV forum readers. It pertains to the latest information provided from Entropic (the key DirecTV partner behind SWiM and DECA).

MoCA 2.0 (Multimedia Over Coax Alliance) will be the latest high speed home network hardware & software framework for DirecTV HD video/audio distribution.

Today, DirecTV customers with HD service and Whole Home DVR Service, also known as Multi-Room Viewing (MRV), may be familiar with SWiM and DECA. That foundation help deliver high speed HD video and corresponding audio to all connected HD devices, as well as Internet connectivity if integrated with broadband.

MoCA 2.0 is the next generation of this platform.

Key features for the techies:

  • *Connects all existing HD DirecTV devices supported by MoCA 1 - it's backward compatible.

    *Highest possible video streaming speed support

    *Full broadband speed access can be distributed through all connected devices

    *400Mbps of application (MAC layer) throughput over 16 modes

    *500 Mbps two-node "Turbo mode" is supported

    *Packet error rates better than 1e-6 and low latency of 3.5ms

    *Network-wide power management

    *Expanded range of operating frequencies supported 500Mhz - 1650 Mhz

In the simplest terms, MoCA 2.0 supports virtually double the performance level of MoCA 1.x.

Entropic indicated the base technology was complete, with testing and rollout coming later in 2011.

More information can be seen here at the Entropic website:
National Technical Systems Awarded 2-Year Extension of Exclusive MoCA Certification Agreement

One last side note...both Dish and Comcast also plan to use some form of this same platform in the future, indigenous to their own configurations/networking infrastructure.
 

· Beware the Attack Basset
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DECA is MoCA you complete idiot! If I throw a stick, will you chase it and quit bothering us?
Yet DIRECTV offers two different implementations of MoCA. Don't call me an idiot for citing a very real difference that you claim doesn't exist.
 

· Beware the Attack Basset
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Of course, the link in your post from years ago shows that the speed is 400Mbps, not 175Mbps.
There are multiple data rates mentioned. That's why I used the term "effective" in my post. The PHA PHY bitrate and the effective TCP/IP data transfer rate are two different metrics. The TCP/IP rate is the one that means something.
 

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There are multiple data rates mentioned. That's why I used the term "effective" in my post. The PHA bitrate and the effective TCP/IP data transfer rate are two different metrics. The TCP/IP rate is the one that means something.
That's just you once again poorly blurring reality / trolling / padding your post count. Nobody says they have a 980Mbps ethernet port.
 

· Registered
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Yet DIRECTV offers two different implementations of MoCA. Don't call me an idiot for citing a very real difference that you claim doesn't exist.
Yes, one is 175 Mbps and the other is 400 Mbps. You knowingly provided incorrect info on the speeds because you always want to make Directv look bad for some reason.

Do you troll Dish forums with FUD too, or are you lying about their stuff to cast it in a more positive light than it really is?
 

· Beware the Attack Basset
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26,910 Posts
Before I did know PHY eg physical rates ... what the "PHA" means ? 🤷‍♂️
I meant PHY rates. My bad.

This Netgear page explains the differences as well as that the transfer speeds are typically much less (much less than half in the case of 802.11n) than the PHY rates:
Because we're talking about transferring data across MoCA network, citing PHY rates is misleading. What is important is the transfer speeds as that's what relates to the video bitrate.
 

· Save the Clock Tower!!
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2,289 Posts
I meant PHY rates. My bad.

This Netgear page explains the differences as well as that the transfer speeds are typically much less (much less than half in the case of 802.11n) than the PHY rates:
Because we're talking about transferring data across MoCA network, citing PHY rates is misleading. What is important is the transfer speeds as that's what relates to the video bitrate.
Nobody was citing PHY rates.
 

· Save the Clock Tower!!
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2,289 Posts
Sixto is citing PHY rates.
AFAIK, slice1900 is not Sixto.
Yes, one is 175 Mbps and the other is 400 Mbps. You knowingly provided incorrect info on the speeds because you always want to make Directv look bad for some reason.

Do you troll Dish forums with FUD too, or are you lying about their stuff to cast it in a more positive light than it really is?
Those are the PHA rates. The claimed data transfer rates are closer to 100Mbps and 175Mbps. To suggest otherwise is misleading at best.
MoCA 1.1 is 175Mbps, with a 275Mbps PHY rate.
MoCA 2.0 is 400Mbps, with a 700Mbps PHY rate.

It's best to know the facts before accusing others of "misleading".
 

· Super Moderator
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Ok ... Stay on topic (DIRECTV new receiver).
We are done with the personal bickering.
 
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