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BillRoland
Premium
join:2001-01-21
Ocala, FL
clubs:
 ·Cox HSI
| Re: Do their boxes support 1ghz? said by djrobx  :Time Warner upgraded our area to 1ghz a few years ago, but that upgrade remains dormant. Their 2005 era Motorola cable boxes can't go beyond 850mhz. Are the Scientific Atlanta boxes able to use it? A TW tech on the forum pointed out that Docsis 3 would be a natural fit for this new space since it's otherwise unused. But given that they had to hire a small army to rip out every line extender and swap it, it seems like a crazy expense for something they don't seem all that eager to install. 99% of their boxes don't. From what I understand, all the boxes they are purchasing going forward from July can tune up to 1GHz.
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"Don't steal. The government hates competition."
Beyond AM. Beyond FM. XM | |
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caster777
@sbcglobal.net
| Re: Do their boxes support 1ghz? said by BillRoland :said by djrobx : 99% of their boxes don't. From what I understand, all the boxes they are purchasing going forward from July can tune up to 1GHz. HD ones only? | |
| | | | ajwees41
Premium
join:2002-05-10
Omaha, NE | Re: Do their boxes support 1ghz? DCX3400 - dual-tuner, high-definition DVR host set-top
* DCX3200 - single-tuner, high-definition host set-top
* DCX100 - single-tuner, standard-definition (HD in /SD out) host set-top
this is motorola's lineup for 1GHz mpeg4 boxes | |
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rv65
Let's just say I like Dublin Dr Pepper
Premium
join:2008-08-02
San Diego, CA | TWC is purchasing Samsung boxes which can do 1 GHz. The majority of the boxes in my house are the new Samsung boxes. I quite like them. | |
| | | JSRoman
Premium
join:2005-03-10
Callahan, FL
| Someone decipher please "The report notes that Cox, who says they've spent $16 billion on upgrades over the next decade."
Did the spend 16 billion in last decade or will they spend 16 billion in coming decade?
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»www.seabee.navy.mil | |
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bbeesley
VIP
join:2003-08-07
Las Vegas, NV
| Re: Someone decipher please said by JSRoman :"The report notes that Cox, who says they've spent $16 billion on upgrades over the next decade." Did the spend 16 billion in last decade or will they spend 16 billion in coming decade? The Multichannel article states
"In the last 10 years, Cox CEO Patrick Esser said, the operator has invested $16 billion in network infrastructure " | |
| | | majortom1029
join:2006-10-19
Lindenhurst, NY | Re: Wireless backhaul over coax? I could be wrong but i believe that docsis 3 allows the upload to be moved to above the 850mhz range. So comcast can start rolling out say 50/20 packages for internet now if they wanted to with the upload in the upper range. | |
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Eat Me
join:2002-09-25
Sussex, NJ | CDMA to LTE? LTE ***is*** CDMA. | |
| | | shortyd999
join:2008-10-21
Birmingham, AL
| 1GHz? Forgive me im clueless when it comes to cable technology. When they say they've upgrade to 1GHz, what exactly are they upgrading? I understand it when talking about wireless carrier using 850MHz or 1900Mhz and what have you, but what is the 1GHz when referring to cable providers?? | |
| | patcat88
join:2002-04-05
Jamaica, NY
1 edit | Re: 1GHz? »en.wikipedia.org/wiki/North_Amer···quencies
1 GHZ means the cable company has all channels between 1 mhz and 1000 mhz.
800/1900 mhz for wireless is just 1 channel (10-40 mhz per company) per company. Cable has 100s of channels. Cable TV's magic is, they can use the same channels as are used over-the-air by TV, military, satellite, govt, cell phones, radar, etc, because cable TV keeps their signal trapped in a coax cable. | |
| | | shortyd999
join:2008-10-21
Birmingham, AL | Re: 1GHz? OH, so its like OTA but in the actual cable itself? Didnt knw that. Learning is such a beautiful thing. | |
| | | | patcat88
join:2002-04-05
Jamaica, NY
| Re: 1GHz? Yes, some of the OTA channels (VHF), and some of the cable channels are synonyms, UHF and cable TV bands overlap in some places, but the analog TV channels are aligned differently between UHF and cable TV. Digital TV is totally different with nothing common, Cable TV uses QAM to put a digital stream on the wire, OTA TV used VSB »en.wikipedia.org/wiki/8VSB
Easiest way to imagine cable TV is, all the "radio stations" possible are available on cable TV, because the radio station only exists the coax. Totally enclosed. If you broadcasted a cable TV signal OTA, white vans or military jets will be there in 30 mins since the Cable TV signal overrode/interfered with the FCC licensed broadcasted signal.
870 mhz can fit 135 analog cable tv channels. 870 mhz is pretty high on the plant investment level, when cable TV started, it was only ~300-400 mhz, 40-60 analog channels. Going to 1000mhz, you get 157 analog channels.
Nowadays because of digital cable, you can fit 2 to 6 channels inside each analog cable tv channel, depending how cheap the cable TV company is.
Alot of cheap cable TV companies keep their systems in the 500s and 600s and 700s mhz (I forget the exact boundaries). FIOS TV is special, its an 870 mhz system, but no channels are allocated to analog or VOD or DOCSIS internet, giving alot more room for HD/SD broadcast digital channels. | |
| | macdude22
join:2005-09-08
Grinnell, IA
| Someone more knowledgeable than I in the area of cable infrastructure (my knowledge of cable technologies comes more from the radio world) can clarify this but I think historically the coax and end equipment only supported up to 550mhz, with recent technology reaching up to 800+mhz. At 6mhz a "channel" and the recent ability of mpeg4 compression you can fit quite a bit more content in another 200mhz of bandspace. | |
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dvd536
as Mr. Pink as they come
Premium
join:2001-04-27
Phoenix, AZ | no 1ghz in phoenix yet modem still syncs at below 600mhz | |
| cableguy619
join:2003-06-24
Chula Vista, CA
| higher freqs!! just because your modem doesn't sync higher does not mean your system is not 1 gig. A downstream frequency is selected and not normally changed unless the MSO is moving things around. When Docsis 3.0 is launched you will definately see multiple freqs1!! | |
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Cox Making Progress On 1 GHz Upgrades
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