UHF systems do not hold any large technical advantage over otherwise similar VHF systems. The primary advantage of UHF operation is that there is less chance of interference. One of the more common problems with wireless operation is interference between wireless systems. Since there are considerably fewer UHF wireless systems in use at present, the chances of this type of interference are reduced. However, this problem can easily be avoided in VHF systems simply by properly selecting operating frequencies.
Interference due to spurious outputs from other radio frequency equipment is somewhat less of a problem at UHF frequencies because there are fewer transmitters operating at frequencies likely to cause problems. Interference due to electrical equipment, digital devices, computers and other electronic equipment is also generally lower at UHF frequencies. This is because noise from these sources becomes less intense as the frequency increases. Interference of all types does not travel over as great a distance as at VHF frequencies.
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