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Digital TV signals are transmitted on VHF starting on channel 2 and ending at the top of the UHF spectrum channel 69. At one time the plan was not to use the VHF band but it didn't work out that way.
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Is digital tv on both the uhf and vhf spectrum as was analog tv?
Yes
How can you connect an antenna to uhf and vhf to get both uhf and vhf on tv at the same time?
First, you need an antenna that is both uhf and vhf comaptible. Usuaully it will have a pair of rabbit ears (vhf) and a center loop or plate (uhf). Make sure the rabbit ears are completely extended then just re-scan your channels on your digital box or your hdtv.
Can a uhf antenna pick up vhf signals as well?
Yes, a UHF antenna can pick up VHF signals, but not well. The size difference makes the uhf antenna "inefficient" for the longer vhf wave length, but some energy can be received by the uhf antenna.
What is a digital antenna?
A digital antenna is a device that allows the user to receive digital television signals from varying distances, depending on where they live. There are three main varieties of basic indoor antennas that will allow the user with a strong television signal to receive digital signals. These are the UHF, VHF and combined UHF/VHF. There are other models for homes that receive weaker signals, including those designed for placement outside of the home.
Should you use UHF antenna with digital converter box or VHF?
You need a VHF/UHF antenna (channels 2 to 60 ). Check out: http://www.fcc.gov/cgb/consumerfacts/digitaltv.html
When should you use VHF over UHF?
A couple of points: When you're on the receiving end, UHF signals have a few disadvantages over VHF signals, owing to UHF's higher frequencies: 1) UHF transmitters tend to be less powerful than VHF transmitters 2) Transmission lines lose appreciably more signal at UHF than VHF, and that's just for transporting the signal from the transmitter room to the antenna 3) UHF signals tend to get weaker more quickly than VHF signals as they propagate outwards from their transmitters 4) UHF receivers tend to be less sensitive than VHF receivers UHF signals have one particular advantage over VHF signals: The smaller wavelengths of UHF signals allow for a smaller antenna to provide the same performance as a larger VHF antenna. Alternately, you can make the UHF antenna larger for enhanced performance, and it might still be small compared to a nominal VHF antenna. (Please pardon all the vague, qualitative references.) High-performance antennas for UHF that are not especially huge can more-than-compensate for lower power transmitters, lossier transmission lines, higher path-losses, and less sensitive receivers. Another advantage of UHF (and microwave) is that there tend to be more frequencies available than at the lower VHF frequencies. As technology advanced over the years, radio-spectrum habitation moved from the lower frequencies to the higher frequencies. Necessarily, the tendency is for lower, "older" (VHF) frequencies to be more crowded than higher, "newer" (UHF / microwave) frequencies. More than likely, the frequency you operate on will be determined by the radio-communications-licensing authority in your country (i.e., the FCC in the USA). A particular service might have allocations available in more than one band, i.e., VHF and UHF, and then it's up to the Engineering Department to decide which of those legally available frequencies to chose for their system.
What's a good antenna for a TV?
Getting a VHF antenna will allow the TV to have a strong signals and get the programs that you would need. Also, UHF could be another alternative to VHF.
Why are TV broadcasts in the VHF range easier to receive in areas of marginal reception than broadcasts in the UHF range?
Signals in the VHF frequencies have a tendency to follow the curve of the earth and bend around hills where UHF tends to travel more in a straight line.
Why the upper band of vhf frequency is considered as uhf frequency?
Different people see the boundar between VHF and UHF differently. I tend to regard UHF as starting at 200 Mhz.
Do the police use UHF or VHF radios?
it rely depends where you are. UHF stands for ultra high frequency and vhf stands for very high frequency. vhf has ben around longer than UHF making them cheaper to use but UHF means smaller antennas and better output. vhf is better in rural locations with expectations to be used in close proximity because buildings and natural barriers affect them. UHF can easily get through buildings and natural barriers but you pay lots more for them. but any to answer you question they do use both just ask your locals what they use.
How come your vhf signal is gone?
In the United States, Congress has required that major TV stations broadcast only digital signals beginning on 14 June 2009. TV and radio broadcasting begin with analog signals and older televisions are capable of receiving only analog signals. If your TV is receiving over-the-air signals (not via cable or satellite dish) and it is not digital capable or equipped with a digital conversion box, it will seem as if your VHF and UHF television signals have gone away. A conversion box can be purchased in many stores for $40-$60 or so, and up to two government coupons per household are available to cover $40 of that.
What are air channels?
"Air" typically refers to broadcasts that are "on air" using VHF or UHF terrestrial signals. These are the signals that are received with an antenna on the roof of houses. Today, terrestrial channels are almost all digital in most Western countries. The term is not a precise one but generally refers to signals that are not delivered via cable or satellite platforms.
