The communication distance of the two way radio is related to the environment of use. The electromagnetic wave length of the UHF or VHF section machine is not the same, the loss of transmission is not the same, there are more buildings in the town, and the use of two way radio of UHF is relatively better in this environment; If the environment is relatively empty, such as the sea, the wilderness, etc., the two way radio ofVHF is relatively good.

What is the difference between UHF snd VHF?

    UHF and VHF of the radio, and the frequency range of the UHF is usually 400-470MHz; The frequency range of the VHF is usually 136-174 MHZ.

    2, in the atmospheric environment or occasion of potential explosion, you must turn off the two way radio.

    Because in a potentially explosive atmospheric environment, electrical sparks can cause the two way radio to explode or fire.

    3. Do not replace and remove batteries or charge two way radios in potentially explosive atmospheric environments

    Because when installing and removing the battery or charging the two way radio, it may cause contact sparks and cause an explosion.