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Hi,
VHF was used because primarily, that was the highest frequencies that transmitters could be manufactured for at the time TV came into existence. Since then, technoligies have improved and we've gone way, way beyond
the limitations of VHF.
The interesting thing is that as of February 17, 2009, ALL of the VHF TV transmitters will have been shut off (By order of Congress) and TV will have moved as an industry into all digital transmissions and HDTV. If you have an older set that's not digital ready, it'll no longer receive anything off the air.
On the same token if you have a cable or satellite box currently working on your TV, you shouldn't experience any change in services.
Hope this helps,
Cubby
Wiki User
∙ 16y ago
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What exactly is a VHF radio used for?
It is used for sending wireless signals over the Very High Frequency band of radio. This band is mainly used for television signals. It can also be used to modulate a television signal in a single cable.
Will the new digital signals be in both UHF and VHF?
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.
Waves used for broadcastig radio signals are called what?
The waves used to broadcast radio signals are called RF waves and these generally lie in VHF and UHF band of electromagnetic spectrum.
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.
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.
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 type of waves does a television use?
Radio waves. A section of the frequency spectrum is reserved for broadcast television. Television signals are transmitted in the VHF (Very High Frequency) range using frequencies from 54 Mhz to 216 Mhz with a section in the middle (88 to 108 Mhz) assigned for FM radio broadcasts. The VHF frequencies were used to accommodate the wide bandwidth needed for the analog video and audio signals. Each broadcasting channel was alloted a 5 Mhz range for audio and video and to allow separation from adjacent channels so that they would not interfere with each other. The US has since switched from analog to digital television broadcasts but is still using the same VHF frequency range.
Do tv's have short wavelengths?
TV broadcast signals are in the VHF & UHF radio bands, shorter than most of the radio bands but longer than the microwave band.
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 is the height of the VHF antennae important?
Because VHF signals have a line of sight limitation.
Why is the Height of VHF radio important?
Because VHF signals have a line of sight limitation.
Will a plasma TV work with an antenna?
A plasma TV set is just like any other TV set on the market. It can accept video/audio signals from an VHF/UHF antenna if it has an aerial VHF/UHF antenna input. It can also accept DVB-C or DVDB-S or DVB-T through the same antenna input. You have to refer to the manual that came with your plasma TV set to see what types of signals it can receive through its antenna input.
