For the benefit of a beginner , the typical VHF communications band is considered around 100 to 170 MHz (2 meters is 144-148 MHz and 220 is 219-225 MHz), UHF around 400 to 500 MHz (70 cm is 420-450 MHz, 33 cm is 902-928 MHz, 23 cm is 1240-1300MHz, also ham bands at 2300-2310 MHz and 2390-2450 MHz).
FM radio would be VHF (88 - 108 MHz esp. in USA, 76-108 MHz in some other parts of world (e.g. Japan))
Cellular phones operate between 820- 920 MHz (approx) and 1805-1990 MHz with more spectrum added from time to time .
When you get into 3 GHz (gigahertz or 3000 mhz) you are into microwave or RADAR frequencies .
Another spectrum is called HF (High Frequency) , from 3-30 MHz. It was called HF because in the 1930's it was as high as they could go , but the label is still used in the Amateur Radio lexicon.
From a US. Dept. of Commerce poster: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.
Different people see the boundar between VHF and UHF differently. I tend to regard UHF as starting at 200 Mhz.
The frequency. Oddly enough, uhf actually stands for Ultra High Frequency and vfh stands for Very High Frequency. VHF for old TV covered the range 90Mhz to 150Mhz UHF for modern TV covers the range 400Mhz to 800Mhz
VHF uses the 6 Meter Band (50-54 Mhz), the most popular VHF band - 2 Meter Band (144-148 Mhz) and the 1 1/4 Meter Band (222-225). UHF uses the most popular UHF band - 70cm Band (420-450 Mhz), the 902-928 Mhz area and the 1200-1300 Mhz area.
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.
Een draadloze microfoonset met VHF is storingsgevoeliger dan UHF microfoons.
VHF is the more common for tv channels, you are probably thinking UHF
I wouldn't think so. The uhf coupler is made NOT to pass vhf freqs. The transmitter and the coupler are made to operate in different bands.
You need a VHF/UHF antenna (channels 2 to 60 ). Check out: http://www.fcc.gov/cgb/consumerfacts/digitaltv.html
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.
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.
Yes