2007-08-10 11:17:21 · 3 answers · asked by Anonymous in Consumer Electronics ➔ Other - Electronics
ultra high freq and very high freq
diffrent freq. basically
2007-08-10 11:25:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Ultra High And Very High Frequencies. UHF is the carrier for HDTV Trasmissions. VHF 2-13 channels is analog and will disappear on Feb. 18, 2009
2007-08-10 18:26:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
more info than u ever wanted
u can see where VHF AND UHF fits in the whole picture.
Extremely Low Frequency (ELF) 0 to 3KHz
Very Low Frequency (VLF) 3KHz to 30KHz
Radio Navigation &
maritime/aeronautical mobile 9KHz to 540KHz
Low Frequency (LF) 30KHz to 300KHz
Medium Frequency (MF) 300KHz to 3000KHz
AM Radio Broadcast 540KHz to 1630KHz
Travelers Information Service 1610KHz
High Frequency (HF) 3MHz to 30MHz
Shortwave Broadcast Radio 5.95MHz to 26.1MHz
Very High Frequency (VHF) 30MHz to 300MHz
Low Band: TV Band 1
TV Channels 2-6 54MHz to 88MHz
Mid Band:
FM Radio Broadcast 88MHz to 174MHz
High Band:
TV Band 2 - Channels 7-13 174MHz to 216MHz
Super Band
(mobile/fixed radio & TV) 216MHz to 600MHz
Ultra-High Frequency (UHF) 300MHz to 3000MHz
TV Channels 14-70 470MHz to 806MHz
L-band: 500MHz to 1500MHz
Personal Communications 1850MHz to 1990MHz
Unlicensed PCS Devices 1910MHz to 1930MHz
Superhigh Frequencies (SHF)
(Microwave) 3GHz to 30.0GHz
C-band 3600MHz to 7025MHz
X-band: 7.25GHz to 8.4GHz
Ku-band 10.7GHz to 14.5GHz
Ka-band 17.3GHz to 31.0GHz
Extremely High Frequencies (EHF)
(Millimeter Wave Signals) 30.0GHz to 300GHz
Additional Fixed Satellite 38.6GHz to 275GHz
Infrared Radiation 300 GHz to 430THz
Visible Light 430 THz to 750 THz
Ultraviolet Radiation 1.62PHz to 30PHz
X-Rays 30 PHz to 30EHz
Gamma Rays 30EHz to 3000 EHz
2007-08-10 18:58:47 · answer #3 · answered by Bill R 7 · 0⤊ 0⤋