The strength of a radio frequency signal is not determined by its VHF (Very High Frequency) or UHF (Ultra High Frequency) but rather by other factors like the power of the transmitting antenna, the distance between it and receiving antenna, as well as any obstructions or interference along the transmission path.
Generally speaking, UHF signals are more effective at penetrating obstacles such as buildings and trees than VHF ones due to their shorter wavelength and higher frequency. UHF radio waves possess a shorter wavelength and higher frequency than their VHF counterparts, allowing them to penetrate physical barriers.
On the contrary, VHF signals tend to travel farther than UHF ones when transmitted under similar conditions, such as with equal power output and antenna height. This is because VHF waves have a longer wavelength and lower frequency, allowing them to “hug” into Earth’s surface and cover greater distances.
In conclusion, neither VHF nor UHF is inherently more substantial than the other; radio frequency signal strength depends on several factors beyond the frequency band. However, depending on your application and conditions, one frequency band may better suit your use case.
This post was written by Justin Tidd, Director at Becker Mining Communications! For over 15 years, Becker Communications has been the industry’s leader in mining radio communication systems and electrical mining communication systems. As they expanded into surface mining, railroads, and tunneling they added wireless communication systems, handheld radios, tagging and tracking systems, as well as gas monitoring.