Say Hello to 802.11ac - Page 2

I would have to see powerline in real world action to believe that it is viable as I had the same experiences with it, horrible speeds and reliablity issues.

true but you can do it !!

even a 100Gb SSD is only waht 100-150 these days and 3-4 time faster than spinning HD

I hate slow transfers and i do photography, I did like waiting HOURS for 40Gb of photo to transfer lol

its also nice for windows 7 (4gb) to transfer in about 10 seconds................... now i need 2 1Gb cards in my server so i can use the hard drive speed lol but thats is REALLY expensive from reason lol

In the case of two pair, I am curious what wiring standard is used for that?

Thanks.

Mark

Interesting. I did not realize that was one of the drawbacks of Powerline.

Mark

I've sometimes heard it said that real-time media streaming over powerline is akin to driving a Ferrari on a dirt road!

My house was built in 2005, and they used Cat 5 for the phone lines, but none of them are "home run". There are a series of sections of cable that go from the basement to the various phone jacks in the house. I had investigated this when considering how I might get ethernet to the 2nd floor. I suppose someone makes couplers to tie these cable sections together? I realize that the twists per inch would be compromised, but it may be better than wireless.

Thanks.

Mark

Haha I totally understand how your stickler I'm like that in other stuff. One thing with Hdd drives are rated in "bits" and not bytes one byte is equal to about 10 bits, the average speed for an hdd is in fact around 100 MBP/S now this is what everyone will get when playing games, streaming movies etc. in a perfect scenario you might get 1 GbP/S but in the real world you won't get those speeds. Just my .002$

Lolz, are you kidding? Is it really still or maybe already a secret, high level knowledge? 1 Byte is not equal "about" and not 10 bits, but EXACTLY 8 bits.

read what i put in my posts on the first page,

10 bits in a byte LOL i wish the math would be much easier

Don't the router and adapter have to be on the same circuit

this is also not true

its almost always 8 bits, but not always....

unless you from the 1960's and before.

and the old programming that does that stuff is dead, or very very rarely used anymore.

for 99.999999999999999999999999999999999999999999999999% of stuff the 8bit = 1 byte

I'm not a programmer but work with them from time to time, I did my own resurrect into this and its seems DSP is the only thing still around.

http://stackoverflow.com/questions/5516044/system-where-1-byte-8-bit

but we are talking about transmission rates, I'm not aware of any hardware that counts bytes with more or less than 8 bits - and i have worked with a lot of hardware from 16k circuits to oc-192. they are all standard across brands other wise they wouldn't talk to each other.

that's not to say there is not something out there but i would think it belongs to and is local to one place.

just because you program at 5,6,7,8,16 bits = 1 byte does not mean its transmitted/stored that way.

if you have any 2013 examples please share always good to learn new stuff

I think I said as much with a lot less words

There's certainly a lot more to learn on the subject than a quick internet search is going to provide you and certainly a lot of hardware from the 60's that's still in use on the planet and off it, today.

Yep, use a RJ45 coupler, I've used them with no issues:

http://www.amazon.com/Your-Cable-Store-Ethernet-Coupler/dp/B001SIGXHC/ref=sr_1_1?ie=UTF8&qid=1361401207&sr=8-1&keywords=cat+coupler

Why not just add a Gigabit Ethernet Switch in the areas you do not have enough connections? I sent a CAT6 cable to each room and added one switch to each room - have more connections than needed this way. I even daisy chained two of them in the media room to create more connections with no issues with dropped signals or buffering (we have up to 5 HD streams being done at once with no issues). Each room has at least 4 devices connected to a Ethernet Switch. I contacted Netgear to check the limits and they said as long as you keep in at 124 devices or under.

http://www.amazon.com/NETGEAR-GS108NA-ProSafe-Gigabit-Ethernet/dp/B00006RVPW/ref=sr_1_2?s=electronics&ie=UTF8&qid=1361401402&sr=1-2&keywords=netgear+gigabit+switch



Here is a drawing of our Ethernet to give an idea:


Edited by cavchameleon - 2/20/13 at 3:23pm

How many bits in a Word? Anyone old enough to know?

My wife and I haul our laptops all around the house and plug them in because the batteries are shot and too expensive to replace because their lives are always short. So, if we put Powerline adaptors in the locations we frequently use can I attach the ethernet cable to each powerpack cable that connects the laptop to the wall plug? This cleans up the cable clutter when moving the laptops around. Wondering if the electrical signal in the power wire will spill onto the parallel ethernet cable and screw up the data stream.

16 bits on a 16bit architecture.

sigh. i'm old.

You can use these sparingly. They will add resistance, so knock off about 100' off the max per run; make sure your punches are really tight and short. If you have any power nearby the wire junctures, it would be better to punch jacks and put a baby switch there. It's more reliable for long runs and consistently high transfer rates.

Agreed! I only used them were equipment was move in a room an the cable was several feet short of reaching.

That's exactly right, 1 byte = 8-bits. No ambiguity there!

The 10-bits per byte is an old "approximation" for transmission rates from the serial transmission days where there was a start-bit and stop-bit for every 8-bits in a byte, without a parity bit. Hence the old calculation 10-bits in a byte.

Thanks gents; I should have thought of that one myself, but I guess I was trying not to terminate the cables. No bid deal to do that, though. Now, where did I put that drawing I did when I mapped this out?

Mark

how many letters is the word? the word "cat" is 6 bytes

unless your computer is really old

but you mean a "word "

16 bit pc = 2 bytes
32 bit pc = 4 bytes
64 bit pc = 8 bytes

at least i provide a reference

but i have 11+ years experience in the IT world from Military system from Iraq to Europe to USA and working with commercial providers in those countrys and i have NEVER seen any equipment that uses anything other then 8 bit standard:)

I'm still waiting for HDBaseT to go mainstream. With HDBaseT you can access any source from any device on your network. For instance you could have a blu-ray player in the living room or media closet and access it from any television in the house on the network. It has the ability to trasfer video content at up to 4k, audio, data, control, and 100w power with lengths of up to 100m. This is what we need for home theater not another wifi standard...unless it incorporates similar features, I don't see a need to upgrade.

I wishe cisco would bring the power over wifi to the consumer market........ makes things easy

Wow, somebody could have used a few 1000 Mb/s switches!

I've got an Airport 1tb Time capsule with some movies on it> and it is remarkable how well 1080p files can look over wifi.

I have it connected to my Plex server> I encode all my movie files including blurays @ 1080p> the magic number for file size is about 10GB for wireless 1080p video streaming, anything more and it starts to buffer too many times, I've found that shrinking a bluray to 10gb shows little noticable detail loss optically, and when I shoot it wirelessy from my TC to my server downstairs the picture is just as stunning if not even better due to less cable induced noise (if that is possible but I'v sort of noticed when I went from wireless to wired connection etc).

Most blurays I've seen on the market... at least the new ones are razor sharp even when viewing 2" from the display (where some movies show pizel blur)...this shows that the encode is not going to pixelate the image and will actually mostly shrink the file conveniantly while still maintain that wonderful optical focus and image detail we see with bluray files etc. I switched from encoding files @ 10-18gb to 5-10gb (on good blurays)...and the effect is just as spectacular without requiring a NAS of 12tb or more> I can use about 6tb of storage space to store plenty of movie files without adding more storage capacity for quite some time

Though AC is still not standardized, if you bridge two of the present draft models together and it works well for you - its a keeper. Bridging two units together not only gives you the connection and additional ports on both ends but does all the heavy lifting in handling traffic. In my estimates, AC draft done well is as good as the top N performance and better.

Powerline is very dependent on what type of dwelling you have and how its wiring is done. In apartments you can have two units hooked up with miserable performance that is no better than mediocre N wireless connectivity due to length of wire laid, switch/fuse location and types and massive noise. House systems too can suffer but are far more ideal than most apartments and some condos.

I have tested all sorts of connectivity in my flat (apartment) and the very best was 1) direct cable - Ethernet Cat 5e and 6, bridged wireless N (also slightly better with AC), router plus access point N, and sadly Powerline was last. My testing was a combination of streaming, file uploads and downloads to NAS of both small and large files. For all of the connections, DVD quality media all did well. Anything greater in resolution and bitrate was a crap shoot.

My friend has his home with Powerline and I have to say it was a real winner for him. Everything does exactly what it is supposed to do with respectable speed and moderate multiple traffic.

In short, it really depends on your dwelling, wiring and ability to tweak and adjust to get the most out of any form of connectivity.

I bought the Western Digital (4 port) Powerline adapter for my mother in law who lives in an apartment (co-op) building. She had her own circuit box so I took a chance and it works fine for her one smart tv. I have heard of issues with them in apartment complexes. Before I did this I tested it throughout my house and got a signal connection (I am not savvy enough to give any details on speeds). I do not know the answer to the posted question about neighbors being able to hop onto the powerline network. My instinct is that generally this is not possible since we all have separate bills (meters) although it would not surprise me in the least if some teenager knows how to do this. I am currently looking into a router and Roku purchase and I just want to say that everyone on this forum has helped me immensely in my learning process. Thanks to all of you.