ECE 401 Communication Systems - University of Dayton : Homepages

Commercial Broadcast TV &
• VHF:
– Channels 2-4: 54-72 MHz
– Channels 5-6: 76-88 MHz
– Channels 7-13: 174-216 MHz
• UHF:
– Channels 14-83: 470-890 MHz
– Channels 70-83 (806-890 MHz) is allocated for cell phones
• ¼-Wave Antenna Dimension Examples
– Channel 5 ¼-wave antenna = 38 in
– Channel 13 ¼-wave antenna = 14 in
– Channel 30 ¼-wave antenna = 5 in
– Mobile phone 859 MHz ¼-wave antenna = 3.4 in
University of Dayton Department
of Electrical and Computer
Engineering
Cell Phone