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radios
Radio is the technology of signaling or communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 1 terahertz (THz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by a radio receiver connected to another antenna. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking and satellite communication among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft and missiles, a beam of radio waves emitted by a radar transmitter reflects off the target object, and the reflected waves reveal the object's location. In radio navigation systems such as GPS and VOR, a mobile receiver receives radio signals from navigational radio beacons whose position is known, and by precisely measuring the arrival time of the radio waves the receiver can calculate its position on Earth. In wireless radio remote control devices like drones, garage door openers, and keyless entry systems, radio signals transmitted from a controller device control the actions of a remote device.
Applications of radio waves which do not involve transmitting the waves significant distances, such as RF heating used in industrial processes and microwave ovens, and medical uses such as diathermy and MRI machines, are not usually called radio. The noun radio is also used to mean a broadcast radio receiver.
Radio waves were first identified and studied by German physicist Heinrich Hertz in 1886. The first practical radio transmitters and receivers were developed around 1895-6 by Italian Guglielmo Marconi, and radio began to be used commercially around 1900. To prevent interference between users, the emission of radio waves is strictly regulated by law, coordinated by an international body called the International Telecommunications Union (ITU), which allocates frequency bands in the radio spectrum for different uses.
Baofeng UV-5Rs on sale 2 for $29.99 today. If you're looking for a budget short range radio solution these are the ones to get. At $15 a piece they can't be beat. You can also upgrade the antennas in the future if you wanna get better range. Radio is deep hole to dive down. Lots of better radios...
Quick overview: I have a couple of GMRS radios and I have my GMRS license from the FCC. I'm very new to this type of communication and still needing to learn the basics of GMRS. Like for many on here, it's mostly to be ready for SHTF stuff. I've also used them with a buddy when...
Since switching to digital radios, I have (3) Icom 5021 VHF mobile radios that I do not need. All of these bench test good. I have a couple brackets and a mic to go with them. I can do basic programming (10 frequencies and the P buttons) with purchase.
Asking $75ea
I also have another 5021...
2 x Yaesu FT-60 Radios for sale. Both have Diamond long wips on them. Only have one of the original rubber duck antennas. Comes with field expedient Jpole antenna. 5 x batteries always cycled through chargers. 2 x 120v charger trays included (not pictures).
Never been wet , no scratches , work...
I know a lot of folks have jumped ship and gone to 10 meter, but let's talk about the good ole CB radio mounted in your personal vehicle or your own CMV. What are you packin! Feel free to post some pics. How long have you been around CB's? I'll start out with my experiences and newest set up...
I have 3 used PR860 VHF radios that are in good working condition, that I don’t need. These are commercial/industrial radios with 5 watts of power, they work very well. All 3 have chargers and hand mics.
Selling as a set for $250obo
Open to trades.
I have several sets of two way radios that came from a retail store that closed in the area. I thought these would work well hunting hiking and whatnot. I have sets of 6 cls 1410 with a six bay charger set up belt clips batteries and headsets for $500.
Motorola says that they go up to a 5...
I have two Icom F1000S radios that are not being used since switching over to digital. This is professional quality VHF radios. I can program frequencies that are legal for you to use/listen to and these will work on amateur/ham VHF frequencies as well. Chargers included.
1 for $150 or the...
So the last step in my kit is a radio, and I know as much about them as I know about my wife's podcasts... I see Kenwood, Motorola, Bao Feng, Cobra and others but I'm looking for some recommendations... Good, bad, ugly? I'll get the appropriate cable for my headset once I decide on a radio. Thanks!
two baofeng uv-82hp baofeng hand held ham radios. both have an extended life battery and original battery. both have chargers.one has foldable extended range antenna, the other
will come with whip antenna aswell as both factory antennas.basically brand new. still has the screen protectant film...
I have a 2 meter/440cm Handheld Baofeng Model UV-82 available.
These are the radios preferred by those who are preparing for a national or natural emergency. I have more of these than I need. It comes with a charger.
Instructions for programming may be found all over YouTube.
I have for sale 3 PowerCom Plus radios. They are used and are in good working condition. I will even throw in a Peltor Tactical Pro that may work if a mic boom was installed. I’m asking $100 or trades for ammo in 9mm, 45acp or 308.
2dognite
This package includes:
(2) TERA TR-505 transceivers (each with a lithium ion battery, antenna, desktop/wall charger, belt clip, wrist strap, and manual.)
(2) AAA battery cases
(2) 12v DC Cig Lighter battery eliminators
(2) Extended range antennas
(1) USB programming cable (free software...
Excellent condition... these were great radios... It was the last set I had before getting into higher end stuff.
two radios, charging station with car 12v outlet, two rechargeable battery packs (also uses AA batteries)
$25
Located in Vancouver, can meet in PDX some days... PM about shipping