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How does a professional hand held 2 way radio work what is vhf or uhf-which is better role?
Wiki User
∙ 16y ago
Whether its a handheld, a mobile in a car, or a base unit, they all work the same way. They work just like your cheap walkie-talkies from Wal-Mart that you played with as a kid, you key the radio and speak and the others hear you.
As far as vhf or uhf, these are bands that the radios transmit on. The typical business/industrial/public safety bands are 800 mHz, VHF, and UHF. VHF stands for Very High Frequency and are from 30 to 300 mHz but typically for these radios it will be in the 136 to 170 mHz range. UHF stands for Ultra High Frequency and run from 450 to 470 mHz. And there are lots of areas in between that are used by amateur radio operators.
VHF is good for long range on flat terrain. For example on the Interstate. Not so good for urban type areas with lots of buildings, concrete or steel.
UHF is good for urban type areas where you may be in a building. Not as good for long range compared to VHF, but is better than VHF in urban settings as it can penetrate steel and concrete better.
So it really depends on how you will use your radios as to which band you will want to consider.
As a side note to this there are a few frequencies that the FCC has set aside for say business use but they are limited to certain handhelds with certain power requirements, these are GMRS (UHF) and MURS (VHF). You cannot use mobiles or bases on most of these. To be able to do this you must apply for and be granted a license from the FCC. IF in doubt on whether or not you need a license check out www.fcc.gov for info.
Wiki User
∙ 16y ago
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How does a professional hand held 2 way radio work what is vhf or uhf-which is better role frequency plays Range of hand held 2 way radios can someone tell me everything about hand held 2 way radios?
http://en.wikipedia.org/wiki/Two-way_radio
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