The firmware versions can not be upgraded. The main differences are the case style and the firmware versions, BFB-230 being the oldest and BFB-295/297 the newest. This topic has been widely discussed in the Baofeng UV-5R Yahoo group.The radio is available in different colors and case styles, models available include the UV-5R, UV-5R+, UV-5RA, UV-5RB, UV-5RC, UV-5RE and other variants. The radio has an FCC Part 90 certification, so it is not compliant when used on Part 95 services. It is illegal to use the UV-5R on GMRS, FRS and MURS channels in the U.S.
With or without a license, the UV-5R is not legal for GMRS. An amateur radio license, Technician class or higher is required to legally transmit with this radio in the U.S. The UV-5R is a very popular transceiver in many countries and in the United States, its low cost ($50.00) makes it a very good alternative for newcomers into the hobby or as a second or backup handheld among experienced amateur radio operators.
The power output is four watts in high power and one watt in low power on both bands. ( Initially, coverage in uhf was 400 - 480 mhz., currently they cover from 400 - 520 mhz). The Baofeng UV-5R ia a multi purpose dual band ( vhf / uhf ) hand held transceiver made in China.
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