[elektro-etc] Ez álom vagy valóság =3F?=

[Horváth Péter]

ilyet installálnak a Fibernetesek :

http://www.xantuski.sulinet.hu/egyeb/fibernet.jpg

Ezért gondolom, hogy a letöltés az UHF felett, a feltöltés a VHF 1 alatt megy.

Péter

> -----Original Message-----
> From: elektro-etc-bounces at tesla.hu 
> [mailto:elektro-etc-bounces at tesla.hu] On Behalf Of Leto Tokarev
> Sent: Friday, August 25, 2006 3:06 PM
> To: elektro-etc at tesla.hu
> Subject: Re: [elektro-etc] Ez álom vagy valóság =3F?=
> 
> Ja hogy 30MHz alatt MEGY az internet, de nem ott JON :)
> 
> 
> 
> 
> Leto
> 
> 
> On Fri, 25 Aug 2006, hwsw famulus wrote:
> 
> > Leto Tokarev wrote:
> > >> A NET joval  a TV/Radio alatt jon frekiben Talan az also ~10 
> > >> Mhz-ben ...
> > >> valami extrem modulacioval
> > >
> > > Ez biztos?
> > 
> > Nem biztos, de ilyesmi remlik...
> > 
> > Rakerestem lasd alabb.
> > 
> > Ahogy elnezem nagysebessegu cabelnet
> > eseten mar belelog a NET a VHF savba
> > es  az URH radioba is...
> > Ezert lehet gond a szures a
> > szokasos kabelTV kiosztas eseten...
> > 
> > KJ
> > 
> > > Leto
> > 
> > 
> > Cable TV networks are one way broadcast networks, based on 
> coax cable. 
> > We distinguish between the download and the upload 
> band-width. Today 
> > the following frequencies can be used:
> > 
> >   a.. download: 47-450 MHz
> >   b.. upload: 5-30 MHz
> > In the future the  so called "Full Service Networks" will 
> increase the
> > band-width:
> >   a.. download: 47/80-862 MHz
> >   b.. upload: 5-30/65 MHz
> > The today existing cable TV networks usually do not dispose 
> a backward 
> > channel.  To use the cable TV networks as a door to Internet, this 
> > feature has to be implemented first. Since the band-width of the 
> > backward channel is limited and may not be big enough in a 
> big network 
> > island, the cable TV provider has to grow up the capacity of the 
> > backward channel from some distribution centers to the main network 
> > via xDSL connections or other added connections. In most 
> cases, this 
> > connections do not exist yet and they have to be built up 
> first. These 
> > are the reasons, why this new service is coming up step by 
> step from region to region.
> > With this cable modem technology we can reach speed up to 36MBit/s. 
> > The real installed modems will allow us maximal download 
> rates between 2 and 4MBit/s.
> > On the backward channel upload rates between 64kBit/s and 
> 10MBit/s are 
> > theoretically possible. In the practice these values are 
> depending on 
> > the used modems. At present most modems allow down streams up to 
> > 3MBit/s and up streams between 100 and 800kBit/s. The "Home Works 
> > Universal" made by Zenith as a special case can work with 
> 4MBit/s in both directions (duplex).
> > 
> > 
>