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What in Tarnation?
What in Tarnation?
by timmp, September 10
Plumber meets Electrician
Plumber meets Electrician
by timmp, September 10
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Joined: Nov 2007
Posts: 764
K
KJay Offline OP
Member
Originally Posted by hbiss
I would agree that a simple tester that only looks for RF won't have any problems. Where you will have a problem is with the meters that do actual signal level measurements. They must be designed and calibrated for, in the case of CATV, QAM as well as analog and you need that now. For off-air it will be 8VSB. Some meters will handle both.

In a short while most CATV systems will be eliminating the analog channels simply because they are bandwidth hogs. They can put 10 digital channels or 2 HD channels in the 6 Mhz bandwidth of an analog channel.

This change has nothing to do with the over-the-air digital conversion now rescheduled for April.

-Hal



Hal,
So, if I now understand correctly, it should be expected that a lower cost signal meter like the Holland ST-4000D that now reads 'off air' channels 2-69 would not continue to have this function after the change to digital broadcast, but should still work for the actual digital CATV signals from Comcast, my local cable service provider? If so, I think I can live with that.

TKX

Insulated Tools for Electricians

Insulated Tools for Electricians, Installers & Maintenance Technicians

Joined: Dec 2003
Posts: 886
H
Member
No, it's going to be useless. It's an analog meter and it's going to give erroneous readings with digital signals. Doesn't matter if it's off-air or CATV.

-Hal

Joined: Nov 2007
Posts: 764
K
KJay Offline OP
Member
Well that stinks... that's just what I was hoping wouldn't happen. So, it appears I am right back where I started. frown

Joined: May 2005
Posts: 167
B
Member
Originally Posted by hbiss

In a short while most CATV systems will be eliminating the analog channels simply because they are bandwidth hogs.


They probably won't be doing that in anything close to a short while, and the reason is that they still have a significant number of customers without converters. Until the CATV systems have a low-cost set top box option (something that costs them $50 to buy instead of $250), they aren't going to eliminate the analog channels. Comcast has been battling the FCC over their requirement that new set top boxes support CableCard, which significantly increases the cost.


Joined: Mar 2007
Posts: 404
Member
Originally Posted by brianl703
They probably won't be doing that in anything close to a short while, and the reason is that they still have a significant number of customers without converters.


Uh... Comcast is already doing it--see my post above. Anything above analog basic (Chs. 2-31) will be snow unless you have a box (and, of course, the subscription). Vancouver Comcast customers had to get their boxes by March 18, the rest of the Portland area is to follow this spring. Comcast will be providing two digital boxes to every customer who doesn't already have one.

Joined: May 2005
Posts: 167
B
Member
They haven't gotten rid of analog basic (I assume that's the limited basic tier), though. If there's a cable company that's gone completely digital, I've yet to hear about it.

Joined: Mar 2007
Posts: 404
Member
Yes, but it is certainly close to "eliminating analog channels, freeing up bandwidth for digital use" (approx. quote). The analog basic customters are already a small portion of Comcast's customers and will likely shrink even further, as digital basic is now offered for the same price. One bit I read quoted 2010 as Comcast's analog cut-off. If the entice people over to digital with the price, they may be able to do it before then.

Insulated Tools for Electricians

Insulated Tools for Electricians, Installers & Maintenance Technicians

Joined: May 2005
Posts: 167
B
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Well, if that was the approx quote then Comcast started doing that about 4 years ago when they took the TV guide channel off analog.

There's a portion of customers who subscribe to limited basic. Those are the ones that Comcast will find it a challenge to get to switch to digital.

Joined: Jul 2004
Posts: 10,031
Likes: 37
G
Member
Comcast has a whole lot of "extended basic" customers and they are the ones who will get a satellite unless Comcast duplicates the "4 box" deal.


Greg Fretwell
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