ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
sparky 5
Recent Posts
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 04/30/17 02:30 PM
201 volt equipment?
by bigpapa. 04/29/17 12:15 AM
Schneider LC1D09
by jraef. 04/28/17 11:05 PM
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
235,037 Are you busy
169,878 Re: Forum
163,068 Need opinion
Who's Online Now
0 registered members (), 41 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
Page 1 of 2 1 2
#187049 - 06/11/09 10:14 PM Analog TV over the air broadcasting to end Friday  
wa2ise  Offline
Member
Joined: Nov 2002
Posts: 782
Oradell NJ USA
As most of you have probably heard, analog TV over-the-air broadcasting in the USA is due to terminate Friday night. So be aware of this if a recent residential customer starts blaming your work for making their TV set not work anymore.

Last edited by Trumpy; 06/13/09 03:18 AM. Reason: To edit thread title

Work Gear for Electricians and the Trades

#187051 - 06/11/09 11:09 PM Re: Analog TV over the air boradcasting to end Friday [Re: wa2ise]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
It's been gone on most of the stations in Ft Myers for many months. I think it was even before the Feb deadline.


Greg Fretwell

#187058 - 06/12/09 03:00 AM Re: Analog TV over the air boradcasting to end Friday [Re: gfretwell]  
noderaser  Offline
Member
Joined: Mar 2007
Posts: 404
Portland, Oregon, United State...
Note this only applies to "full power" stations, and that repeaters are not required to do this now. I think their deadline is with the cable deadline in two years.

Where my Mom & Dad live in rural Central Oregon, they still get their TV from analog repeaters. There are no digital stations within range. My guess is they will probably make the switch as it becomes financially convenient, i.e. when repeater components break and they can't get analog replacements anymore.


#187062 - 06/12/09 10:13 AM Re: Analog TV over the air boradcasting to end Friday [Re: noderaser]  
homer  Offline
Member
Joined: Sep 2004
Posts: 68
Vancouver, WA, USA
There are millions of people on the fringes who will have to invest in better antennas to get the digital signals. Analog signals have a much better range than the digital, in my opinion. It is another example of our government selling off public property to the highest bidder.


#187063 - 06/12/09 10:42 AM Re: Analog TV over the air boradcasting to end Friday [Re: homer]  
ghost307  Offline
Member
Joined: May 2005
Posts: 900
Chicago Illinois USA
Homer - I see it as something different.

Soapbox on:

The Feds and the high tech folks told us how much better the digital TV signal was and that we should all rush out and buy the new digital TV sets.
We, as the public, made a choice. We wanted to keep things the way they had always been.
Then the government told us that we had made the WRONG choice and that they would now make it FOR us.

If all they wanted was more bandwidth, they could have done the same thing that they did many years ago with "channel 1" on your analog TV.
Just tell all the VHF channels that when they go to renew their license they'll be forced to change to a frequency on the UHF band, which already uses quite a bit less bandwidth per signal. Then they could sell off the entire VHF band...but that wouldn't address their pompous opinion that we are all too dumb to make "the correct choice" on our own.

Soapbox off.


Ghost307

#187066 - 06/12/09 03:26 PM Re: Analog TV over the air boradcasting to end Friday [Re: ghost307]  
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
Bergen County, NJ
Originally Posted by ghost307

Just tell all the VHF channels that when they go to renew their license they'll be forced to change to a frequency on the UHF band, which already uses quite a bit less bandwidth per signal.


Analog TV channels are 6 MHz wide, UHF or VHF.

http://www.csgnetwork.com/tvfreqtable.html


#187068 - 06/12/09 04:46 PM Re: Analog TV over the air boradcasting to end Friday [Re: NJwirenut]  
jdevlin  Offline
Member
Joined: Aug 2002
Posts: 402
welland ontario canada
They sold off part of the UHF band years ago. How many remember when it went to channel 83? It only goes to 68 I think now.


#187071 - 06/12/09 06:11 PM Re: Analog TV over the air boradcasting to end Friday [Re: homer]  
LarryC  Offline
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Originally Posted by homer
There are millions of people on the fringes who will have to invest in better antennas to get the digital signals. Analog signals have a much better range than the digital, in my opinion.


The reason that analog TV (channel 2-13)had a better range was because it was or is in the VHF band. ALL of the digital TV stations are now in the UHF band. Telecoms have been drooling over the prospect of getting the VHF band for the last 3 decades. The main advantage of VHF band is that you can send the signal much farther with the same or less power versus the UHF band. Also you do not have the problem of nightime reflection off of the ionisphere like you have with the lower bands. Think US AM radio and CB radio during the '70's. Analog TV, US FM radio, Ham radio 2 meter band are all in the VHF spectrum. I believe maritime radios are also there.

Larry C


#187081 - 06/13/09 01:55 AM Re: Analog TV over the air boradcasting to end Friday [Re: LarryC]  
WESTUPLACE  Offline
Member
Joined: Mar 2004
Posts: 251
Kingwood, TX USA
There are several reasons the broadcasters wanted to go digital. First they could provide 6 or more channels on their assigned bandwidth (Channel)No ghosting or snow. Stations can use adjacent channels allowing for closer spacing. Analog required guard channels assigned between each channel in each broadcast area. With broadcasters competing with cable, broadband and sat., this will allow them some more choices. Another note, all the digital stations are NOT on UHF. In most of the US broadcasters are moving off of the low VHF ch 2-6 but High band 7-13 will sill be used. Most stations were allowed the choice by the FCC to stay with their temporary digital assigned freq. or return to their old analog assignment. There is NO requirement for cable co to switch. If they do its their choice, but they cannot use the same digital broadcast format as broadcasters due to technical issues. Robert


#187091 - 06/13/09 06:37 AM Re: Analog TV over the air bdcasting to end Friday [Re: LarryC]  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Originally Posted by LarryC

The main advantage of VHF band is that you can send the signal much farther with the same or less power versus the UHF band. Also you do not have the problem of nightime reflection off of the ionisphere like you have with the lower bands. Think US AM radio and CB radio during the '70's. Analog TV, US FM radio, Ham radio 2 meter band are all in the VHF spectrum. I believe maritime radios are also there.

Larry,
Bear in mind that VHF spans 30-300MHz.
Even over here in NZ, the Government have been very quick to sell off any frequencies that they can.

But on the other side of the coin, VHF is really only "line of sight" communications, you really have to have something like a repeater system for communications to be of any use, especially with terrain variations.

Over here, the VHF band is littered with services that should not even be in there, the first being Television, it takes up a HUGE part of the lower end of the VHF band (around 40-52MHz) which means that radio hams like myself can't use the 6 meter band, it is the same with the 220MHz (1.5meters), because that is smack in the middle of TV2 here.

Around about 75MHz we have the Fire Service and Police, they are going encrypted next month, but what they should be doing is moving to UHF, there is already a repeater network here.

The sooner all these TV services go to digital satellite reticulation the happier we will all be.

Mind you, the frequencies could be sold to someone worse.

We've had to live with the "splatter" from the local Telecom pager tower for the last 10-15 years on 145.700 at 90-180db/m all over the 2 meter band here mad


Let's face it, these days if you're not young, you're old - Red Green grin

Page 1 of 2 1 2

Member Spotlight
richard
richard
L.I. New York
Posts: 94
Joined: August 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.020s Queries: 16 (0.003s) Memory: 0.8230 MB (Peak: 1.0043 MB) Zlib enabled. Server Time: 2017-04-30 20:44:24 UTC