# In addition to cable and satellite broadcasts, television stations still use VHF and UHF bands for digitally broadcasting their signals.

In addition to cable and satellite broadcasts, television stations still use VHF and UHF bands for digitally broadcasting their signals. Twelve VHF television channels (channels 2 through 13) lie in the range of frequencies between 54.0 MHz and 216 MHz. Each channel is assigned a width of 6.00 MHz, with the two ranges 72.0 — 76.0 MHz and 88.0 — 174 MHz reserved for non-TV purposes. (Channel 2, for example, lies between 54.0 and 60.0 MHz.)

 m m

 m m

 m m

asked Mar 27, 2012 in Physics

Wavelength = speed of light / frequency

(*note when counting the channel frequencys you skip: 72.0 — 76.0 MHz and 88.0 — 174 MHz reserved for non-TV purposes.)

Channel 4 is unaffected by this, so its just 66 - 72 MHz

Channel 5 is affected, so its 76-82 MHz

Channel 6 is 82-88 MHz

Channel 7  is 174-180 MHz

and the remaining Channels just increase by 6 MHz each.

*note when solving for wavelength be sure to convert MHz to Hz,   where 1 MHz = 10^6 Hz.

Furthermore the speed of light is roughly 3*10^8 m/s

answered Apr 1, 2012 by ~Expert~ (3,856 points)
selected Apr 1, 2012 by awesome