What is the difference between UHF and VHF?

Answer

The difference between UHF, ultra-high frequency, and VHF, very high frequency, is that the frequencies used in UHF are much higher than those in VHF. Both, however, are relatively high frequencies for radio waves as the names imply. Signals sent via VHF are less directional and travel further than UHF signals, making them preferable for their typical purpose of broadcasting television.

Both UHF and VHF broadcasting are declining in use as television is increasingly received through cable and satellite services; however, several channels in each are still designated by the government for use. While VHF signals have a greater range and ability to broadcast through or around physical obstacles, UHF signals are more resistant to common types of electromagnetic interference.

Receivers and transmitters of UHF signals tend to be more expensive than those for VHF receivers, as dealing with the higher frequencies requires more specialized equipment. UHF antennas are often more compact than VHF antennas, making them preferable in some situations. Because of their reduced range, UHF systems often require substantially more power to work properly.

While UHF has many disadvantages, it is often preferable when transmitting from an urban environment. These environments have an abundance of electromagnetic interference sources that are minimized with UHF signals.

Q&A Related to "What is the difference between UHF and VHF?"
U ltra H igh F requency 300 MHz - 3000MHz(3 GHz) V ery H igh F requency 30 MHz - 300 MHz. They are different bands of the Electromagnetic Spectrum. Improved answer. : For the benefit
http://wiki.answers.com/Q/What_is_the_difference_b...
1. Look at the size of the elements that make up the antenna. VHF signals are on the low side of the broadcast frequency band, which means they have longer wavelengths. In order to
http://www.ehow.com/how_5957846_tell-between-uhf-v...
<Hey great use of copy and paste there bubba. lol, jk> VHF = Very High Frequency, 30Mhz - 300Mhz, Channels 2 - 13. UHF = Ultra High Frequency, 300Mhz - 3,00Mhz (3Ghz) Channels
http://answers.yahoo.com/question/index?qid=100605...
UHF is ultra high frequency VHF is very high frequency generally the higher the frequency the more information or data can be carried in the signal, TV is often UHF for it to carry
http://uk.answers.yahoo.com/question/index?qid=200...
1 Additional Answer
Ask.com Answer for: what is the difference between uhf and vhf
What Is the Difference Between VHF & UHF Radios?
VHF (very high frequency) and UHF (ultra-high frequency) are classes of radio waves on the electromagnetic spectrum. Both frequencies have a wide variety of applications, such as transmission of broadcast television and radio signals. Appliances such as... More »
Difficulty: Easy
Source: www.ehow.com
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com