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They are not always different. If the communication is between two radios directly, only one frequency is used. This is called simplex operation. It works fine because only one radio is transmitting at a time.
When two radios communicate through a repeater to increase the distance, the repeater must simultaneously receive from one radio while retransmitting the signal to the other radio. A single frequency would not work because the repeater would only hear its own output. So, two frequencies are used. This is called duplex operation.
The above information is partially incorrect. Simplex and duplex do not refer to how many frequencies are used. They refer to the way traffic (data and voice) are sent and received.
The reason for different receive and transmit frequencies is for retransmitting (like stated above) and for satellite communications. Satellites receive on one frequency, then modify, amplify, and retransmit the signal on a different frequency to prevent bleedover.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoThere's a pretty simple explanation for two way radios. They are considered two way radios if they can both transmit and receive a signal.
"Basically, any devices that can send or receive radio signals are considered two way radios."
Wiki User
∙ 14y agoThat's the only way you have of picking out the signal you want to listen to from among
the millions and millions of radio signals that are in the space around you all the time.
Wiki User
∙ 10y ago2-way radio only means that all units can both send and receive, and they can be built to use almost any frequency.
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What are the best tools for performing radio frequency identification?
The tools for performing Radio Frequency Identification (RFID) would be a two-way radio transmitter-receiver and a magnetic field that powers and reads RFID's at a short distance.
What are the functions of a 2way radio?
A two way radio allows two persons to communicate with each other while separated by some sort of distance. A wireless frequency is used for them to communicate and they must be on the same channel.
Each radio station broadcasts on a specific frequency called a carrier wave.?
true
What are two way radios used for?
Two way radios are used to transmit and receive. What I mean by that is a two way radio allows two people to talk to each with similar devices on the same radio frequency. It's rather unique! One (the operator) can talk, and the other listen. This device allows police officers, detectives, and many other jobs easier.
How do you describe about full duplux transmission?
Full duplex is when two frequencies are used for stations to transmit to and receive transmissions from each other. A station will transmit on one frequency, while receiving on a different frequency. This is often accomplished through the use of repeater towers. Radiotelephones, cellular telephones, and some two way systems used in businesses, state provided services, and amateur radio are examples of this.
Do businesses have to use a certain type of two-way radio?
When you purchase your radio system you will also purchase an FCC licence to operate which will give you your own frequency. You can also arrange to have your frequency added to a local repeater so your system will have greater range.
What are the best tools for performing radio frequency identification?
The tools for performing Radio Frequency Identification (RFID) would be a two-way radio transmitter-receiver and a magnetic field that powers and reads RFID's at a short distance.
How do you tell what my 2-way radio frequency is?
To find out the frequency you need to buy a frequency counter but they are quite deer so try searching on internet or talk to people that use radios alot and they could tell you
Why different radio stations are assigned different frequency?
The only way your radio has of separating one station out of the pile, and letting you listen to the one single station you want to hear, is by frequency. If two stations are on the same frequency, then your radio hears them both when it's tuned to that frequency. If there are 100 of them, you hear all 100. The result of that is . . . well, just listen to CB some time.
What are the functions of a 2way radio?
A two way radio allows two persons to communicate with each other while separated by some sort of distance. A wireless frequency is used for them to communicate and they must be on the same channel.
What can you do with two way radios?
You can use them to communicate with other people when you need to. Example: A cellphone is a two-way radio.
Each radio station broadcasts on a specific frequency called a carrier wave.?
true
What are two way radios used for?
Two way radios are used to transmit and receive. What I mean by that is a two way radio allows two people to talk to each with similar devices on the same radio frequency. It's rather unique! One (the operator) can talk, and the other listen. This device allows police officers, detectives, and many other jobs easier.
What applications use a half duplex transmission mode?
Citizens band (CB) radio Two-way radio communication
Can you use two way radios to transmit video signals?
No the circuits are not designed to handle video frequency
Can you use more than 2 two way radios together?
Yes. As long as they are on the same frequency you can use as many as you want.
What two properties of EM waves are used to attach info to radio signals?
The only properties of EM waves that you can control are amplitude and frequency. (Wavelength is related to frequency in a simple numerical way.) Amplitude-modulated radio (AM) is what you listen to between 550 and 1700 on your dial, and Frequency-modulated radio (FM) is what you listen to between 88 and 108. There are also slick high-tech methods of attaching one stream of information to the amplitude and different information to the frequency at the same time.
