Analog to Digital Transition FAQ

[pulsar]

• What is the Analog to Digital Transition?
  The switch from analog to digital broadcast television is referred to as the digital TV (DTV) transition. In 1996, the U.S. Congress authorized the distribution of an additional broadcast channel to each broadcast TV station so that they could start a digital broadcast channel while simultaneously continuing their analog broadcast channel. Later, Congress mandated that February 17, 2009 (see next paragraph) would be the last day for full-power television stations to broadcast in analog. Broadcast stations in all U.S. markets are currently transmitting in both analog and digital formats. After February 17, 2009, all full-power television stations will broadcast in digital only.
  
  

  Congress has changed the date to June 12, 2009. About 1/3 of the television stations have applied to the FCC for permission to go ahead with the transition on February 17. Although the FCC chairman has stated that they will not let all stations in a given market terminate their analog broadcasts, it is very likely that many stations will be broadcasting only digital signals after February 17.

  
  
  

  Digital and High Definition are not equivalent terms. All High Definition signals are Digital. But not all Digital signals are High Definition. The mandated changeover is to Digital, not to High Definition.

  
  
  
• Why the switch to digital television?
  To free up portions of the broadcast spectrum for other purposes, such as public safety communications and advanced wireless services. Although less of the broadcast spectrum will be devoted to over-the-air television, because digital transmissions are more efficient than analog, there will be more channels available. In addition, the average viewer will have substantially better picture and sound.
  
  
• Who is affected?
  The mandated change is for all full-power over-the-air television stations. If you currently use a roof-top antenna or "rabbit ears," then you are affected.
  
  
  • Satellite TV users already receive digital signals.
    
    
  • In September, 2007, the FCC finalized the rules for cable companies relative to the digital changeover. Cable companies are required to provide all local broadcasts in analog, if they provide any analog service. Some companies will choose to go to all digital and could require you to rent or purchase a "digital cable set-top box."
  
  
  
• What do I need to do?
  
  • If you have digital TV(s), you do not have to do anything. A TV is digital if it has a digital tuner (ATSC). Digital TVs should have a label; for example, "Digital Tuner." Note: "Digital Ready" does not mean it has a digital tuner.
    
    One way to tell if a TV is digital is to look at the remote control. A remote for a digital TV will have a period '.' or a dash '-' with the numbers so that one can enter 7.1, 7.2 (7-1, 7-2) etc.
    
    
  • If you will continue to use an analog TV, then you will need a Set Top Converter box, a device that converts the digital signal to an analog signal. Converter boxes will be discussed below.
    
  
  
  
• Will I need a new antenna?
  No, not if your current antenna receives channels 2 - 83. This includes RV-style 'batwing' antennas. If you have an old-style antenna that connects to your TV with two wires, you will need to purchase two adapters, because the converters use coaxial cables. These 75 to 300 ohm adapters can be purchased at electronic stores, such as Radio Shack.
  
  
• Converter Boxes
  As stated above, a digital to analog converter converts digital signals received from an over-the-air antenna into analog signals that are required by "older" televisions.
  
  
  • Converter Box Coupons
    The Government established a coupon program to defray the changeover costs to consumers. Each household can receive up to two coupons worth $40 each. The coupons can be applied toward the purchase price of "eligible" converters. The eligible converters range in price form $40 to $70.
    
    You can apply for coupons at https://www.dtv2009.gov/
    
    

    Added 1/25: The following notice is on the government coupon site:
    
    Important: The TV Converter Box Coupon Program has reached its funding ceiling. However, coupon requests from eligible households will be filled as funds from expiring coupons become available. If you would like to apply for a coupon today and are eligible, you will be placed on a waiting list and will receive coupons an a first-come-first-served basis as funds from expiring coupons become available. Coupons will expire within 90 days or the date they are mailed

    
    
    Although you may need the converter boxes for your RV, the program is for households that receive over-the-air transmissions. Thus, one should be careful in filling out the application form. You don't want to mention the cable or satellite TV you use at home. You must provide a home address, not a business address. (Note: I know of only one person that was, seemingly, turned down because he noted that he had cable service.)
    
    
  • Which is the right converter to buy?
    The coupons will come with a list of "eligible" converter boxes. To use the coupons, you must purchase converters from that list.
    
    Not all converter boxes are created equally. Some have RF "pass-through," which allows analog signals to pass through the converter box without being changed. This is particularly useful now, while stations are broadcasting both digital and analog signals. The pass-through should allow analog cable signals to pass through. It will also allow low-power (LP) stations, who are exempt from the digital conversion, to still be viewed on a legacy analog television. (There are hundreds of these transmitters, and some cities will remain almost exclusively analog because the whole town is served by LP transmitters.)
    
    Not all remote controls are equal. Some will allow you to control features, such as on/off and volume of the television, as well as change the channels on the converter box.
    
    Let's note here that your TV will be set to channel 3 or 4, depending on switch setting on the converter, and the converter box will be used to change the channels. It is the converter box that has the digital tuner. (Also, all of the converter boxes have analog Video and Stereo Audio outputs that can feed an external V/A input on a vast majority of analog receivers.)
    
    
  • Installing the converter box in an RV
    Most of the converter boxes will require 120 VAC - the eligible boxes were designed for households, not RVs. There is one on the list specifically designed for 12V.
    
    The connection sequence is:
    
    Antenna to distribution switch, if your rig has one.
    Distribution switch to converter.
    Converter to television.
    
    antenna -> distribution switch -> converter -> TV
    
    
    

    Note: Apparently, there is a great temptation to connect the converted box to the cable leading directly from the antenna. In most cases, not only will this not work it could damage the converter box. This cable carries power to the built-in amplifier.

    
    
    Do you see the problem, if the converter box doesn't have analog pass-through? There is only one cable that runs from the TV to the distribution switch. How does the VCR or DVD signal reach the television? There are workarounds, but the analog pass through feature simplifies the connections.
    
    
  • Multiple Televisions
    Unless you want to watch the same channel on all TVs, you need a converter box for each television. The setup for each TV would be the same as described above.
    
    
  
  
• Comparison of Analog and Digital Coverage Areas
  The FCC has issued a report showing the coverage maps for all full-service TV facilities, including 1,749 stations that have both an analog and DTV facility and 69 stations having only DTV facilities. The maps show each station's digital TV coverage as compared to its analog TV coverage (except for the 69 DTV-only stations) within each Nielson Designated Market Area.
  
  Map Book of All Full-Power Digital Television Stations Authorized by the FCC
  
  
• Links to existing threads
  
  TV Converter Box Review
  
  HD Converter Boxes
  
  DTV conversion
  
  Home built HD antenna
  

[hogcard]

why is it that i do a channel scan in the morning on my TT and get 10-12 channels then later in the day i have nothing. do i have to keep moving my antenna around as the day goes by. why do my channels disappear?

[reachrob]

Thanks Pulsar. I think I have it now.

[pulsar]

reachrob wrote:

pulsar wrote:

reachrob wrote:


I don't have your setup, but the following is what I would try.

I too have no "distribution box". Can anyone answer the question of how to hook up a coverter without a distribution box??

Locate the cable that goes to the TV. The end away from the TV connects to something. Let me call that output A.

Disconnect the cable from output A and connect it to the converter output to TV. Connect a cable between the convert input and output A.

Tom

My cable connects directly from the TV to the antenna jack (the jack with the booster switch). As per your instruction that means I am connecting the converter box directly to my antenna jack. Is that OK?

Generally, yes. I guess some additional questions should be asked.

Does your converter have analog pass through? If not and you have a park cable TV input, then you would need a different wiring.

Assuming that your converter has analog pass through, then hook it up as discribed above. To watch cable tv, the converter should be off. (So would be the antenna booster.)

If the converter does not have analog pass through, but has both coax and composite outputs, the cable from the antenna jack should go to a splitter. One side of the splitter would go to the converter; the other side would go to the coax input on the TV. The converter would be hooked to the TV with composite cables.

If the converter box has only a coax output or the TV has only a coax input, then, coax from antenna jack to splitter. One side to converter, one side to B side of A-B switch. Coax from converter to A side of A-B switch. With booster on, converter on, and A-B switch in A position, you would watch over-the-air broadcasts. With booster off, converter off, and A-B switch in B position, you would watch cable TV.

As you see, without knowing exactly what your situation is, it is hard to give simple instructions.

Tom

[reachrob]

pulsar wrote:

reachrob wrote:


I don't have your setup, but the following is what I would try.

I too have no "distribution box". Can anyone answer the question of how to hook up a coverter without a distribution box??

Locate the cable that goes to the TV. The end away from the TV connects to something. Let me call that output A.

Disconnect the cable from output A and connect it to the converter output to TV. Connect a cable between the convert input and output A.

Tom

My cable connects directly from the TV to the antenna jack (the jack with the booster switch). As per your instruction that means I am connecting the converter box directly to my antenna jack. Is that OK?

[pulsar]

reachrob wrote:


I don't have your setup, but the following is what I would try.

I too have no "distribution box". Can anyone answer the question of how to hook up a coverter without a distribution box??

Locate the cable that goes to the TV. The end away from the TV connects to something. Let me call that output A.

Disconnect the cable from output A and connect it to the converter output to TV. Connect a cable between the convert input and output A.

Tom

[reachrob]

Born2RV wrote:
Thanks for clairfying this matter. I noted on the first page the sequence of installation is antenna distribution box converter tv and there is a temptation to hook the converter box directly to the antenna but that is bad. If I do not have a distribtion box, wouldn't I have to do that?

Also, I understand now that it is the TV not the atenna that determines if a converter box is needed. I was going to ask if they make a batwing that will receive the digital signal but it doesn't matter if my TV won't receive it. Thanks !!

I too have no "distribution box". Can anyone answer the question of how to hook up a coverter without a distribution box??

[craneman120]

so let me get this stright,right now I have the cable from the RV's antenna,going to the new converta box,then from the converta box ,back to the RV'S amp to feed both tv's..and they both work..So I'am OK???? Craneman 120

[SCVJeff]

hotrod4x5 wrote:
That's interesting. Currently my standard wingman works best with the blade pointed toward the broadcast antennas.

The "front" of the antenna is the smallest element on the Wingman.

[navybanker]

Not to steal the post, but some say hooking up TV to converter box to antenna with power boost on will burn up the converter box. Some say no it won't. Which is it??? I have hooked up this way and have clear pictures from several stations at least 60 miles away. Concerned leaving the converter box on and hooked up to power will ruin the converter box.

[edbehnke]

for tazmangk..take a look
http://www.12volt-travel.com/index.php?main_page=page&id=5

[hotrod4x5]

That's interesting. Currently my standard wingman works best with the blade pointed toward the broadcast antennas.

[ronfisherman]

hotrod4x5 wrote:

What is considered the front?

The side opposite the arm that raises and lowers antenna.
Here is a link to Winegard's Wingman. Shows a picture of the Wingman mounted. That side is front of antenna.

[hotrod4x5]

SCVJeff wrote:
Whoever everyone is, they are wrong. The antenna is absolutely the most important piece of producing a usable picture. If you cannot recover a signal there is little chance of making a picture.

Hotrod: The batwing is directional on UHF off the front of the antenna

What is considered the front?

[SCVJeff]

Whoever everyone is, they are wrong. The antenna is absolutely the most important piece of producing a usable picture. If you cannot recover a signal there is little chance of making a picture.

Hotrod: The batwing is directional on UHF off the front of the antenna

[hotrod4x5]

bankcardrep1 wrote:
We were in Chattanooga this past week. Plenty of DTV. We have a Digital TV. Tuned to DTV Channel. It said Low Signal Strength and produced a crisp black screen. I keep hearing everyone say that the antenna is not important...but, maybe there is an amplifier or distribution system that is not passing the signal???there is a little green light where we plug the coax in the wall with an on off switch...no signal either way.

Rig is 06 Dutchman so it ought to be up to spec???

Did you try turning the antenna and rescanning? My batwing only works in a couple or orientations. Any other and I get nothing.