How do you know the frequency of the intercom?

Question 1: How do I know that the interphone frequency has a frequency meter? This thing is not expensive, 100 yuan, or some home appliance repairers have it, but this one can only test the transmitting frequency, not the receiving frequency. If it is the same frequency, fortunately it is different frequency, or the reception is silent, then there is no way. We can only read the machine frequency through the frequency writing software and modify it.

Question 2: How to know the frequency of walkie-talkie in two ways?

When 1 is sent by the frequency meter and the fixed-frequency interphone, the frequency meter will display the frequency value.

If FM walkie-talkie has frequency scanning function, it can also be found out by using the signal sent by frequency setter. You'd better know the frequency range of the tuner in advance.

Generally, it is a high-end machine between 450 and 470. Generally between 400 and 470. And take out its battery, the frequency range can be found on the back of the machine.

Question 3: How to know the frequency band of fixed-frequency walkie-talkie in two ways?

When 1 is sent by the frequency meter and the fixed-frequency interphone, the frequency meter will display the frequency value.

If FM walkie-talkie has frequency scanning function, it can also be found out by using the signal sent by frequency setter. You'd better know the frequency range of the tuner in advance.

Walruses between 450 and 470 are high-end machines. Generally between 400 and 470. And take out its battery, the frequency range can be found on the back of the machine.

Question 4: How does the walkie-talkie adjust the channel? When two mobile stations are tuned to a frequency point and both are within signal coverage, they can communicate with each other. When you say receiving and transmitting are not on the same frequency, it should be the case of connecting relay stations. After the walkie-talkie is connected to the relay station, because the relay station is connected to the transceiver, the frequencies of receiving signals and transmitting signals are different. Generally speaking, the frequency difference of an amateur relay station is 5, the reception is 438.000, and the transmission is 433.000. For the use of frequency reading software, you can jump to frequency mode and directly display the current frequency, difference and consonant settings on the screen. Because there is no specific model of the machine, I don't know if there is a display screen and whether it supports frequency display. It should also be noted that if two or more hand stations communicate in direct frequency mode, it is actually wrong to want to keep secret and send and receive consonants. This method can only keep several devices connected without interference from others, but others can receive your signal on the same frequency, so there is no frequency confidentiality.

If you want to learn about radio, you can join a local radio amateur group or come to Harrow CQ, the largest radio amateur forum in Chinese mainland.

Each interval is 000.005. I don't know. Is that normal? This is normal, and the frequency hopping is adjustable, and 005 is the minimum interval.

Question 5: How to search the frequency of nearby walkie-talkies? The settings of various models of walkie-talkies are different. See the instructions.

Take TK208-308 FM method as an example:

1. frequency clearing: press and hold PTT+CSET+ to start the machine;

2. Write frequency: Press MONI, and the frequency number displayed on the LCD screen flashes 150.00. At this time, call out the required frequency point, click CSET to select the channel number, starting from the first frequency 0 1), and click CSET to store it in the receiving frequency point;

3. If the transmission frequency is different, press MONI again to adjust the initial RF point first, hold down the PTT key, and press CSET and REV twice to display+. -

4. Display CH status: press and hold PTT key and REV key to start the machine;

5. Check the frequency: press and hold PTT+CTCSS to start the machine, and then press LOW to enter the maintenance mode.

Question 6: How do I know the frequency of other people's walkie-talkies? Generally, the walkie-talkies that can't be seen from the screen are industrial walkie-talkies. You can set the frequency band between 450 and 470. Press this walkie-talkie to launch and then find a walkie-talkie with a screen to search 450-470.

Question 7: How does the frequency meter measure the transmitting frequency of interphone? I don't know what walkie-talkie you are. When we use the hand-held frequency meter to measure the hand-held interphone, we only need to turn on the power of the frequency meter and put the antenna close to the interphone antenna. When the walkie-talkie transmits, its transmission frequency will be displayed on the frequency meter.

I hope my answer can help you.

Question 8: How to adjust the frequency of interphone receiver? Mobile phone (walkie-talkie)

Why do people choose to use walkie-talkies today when mobile phones are very popular? This is because compared with mobile phones, walkie-talkies have many unique functions:

1. The walkie-talkie is not restricted by the network. In places where network coverage is not available, walkie-talkies can make users communicate easily.

2. The walkie-talkie provides one-to-one and one-to-many call modes, which is simple to operate and makes communication more free, especially in the case of emergency dispatch and collective cooperation. These characteristics are very important.

How far is the intercom?

The communication distance of conventional walkie-talkies is generally 3-5 kilometers, but it will be relatively short when there are buildings or mountains. With network support, intercom can reach tens of kilometers.

Can mass consumers buy walkie-talkies?

Mass consumers can also buy walkie-talkies, but before buying and using walkie-talkies, they must apply to the local radio management committee (hereinafter referred to as "no committee") to obtain a radio license and pay the frequency occupation fee. 200 1, 1 Since February 6, 2000, China has opened the market of civil walkie-talkies and used 400MHz civil walkie-talkies with emission power less than 0.5 watt without any formalities.

Can I make a phone call on the intercom?

With network support, walkie-talkies can be used to make phone calls. However, if it is just a routine call between single machines, the function of making a phone call cannot be realized.

Is there a charge for talking on the intercom?

No matter how often you use regular walkie-talkies, there is no charge, and each walkie-talkie only needs to pay a frequency occupation fee of tens of yuan every year. If you use the public walkie-talkie, you don't need to pay any fees.

1. 1 Use common sense

"Car platform" M and "hand platform" are all radio stations, and the "walkie-talkie" that everyone usually calls is actually a radio station. There are usually many misunderstandings about names. For example, many people think that "walkie-talkies" are used in pairs, or that "radio" is a very profound thing. In fact, it's easy to understand-including the radio part of the stereo installed in your car and the radio of the walkman, which are actually a large category of things. Translated into English, these are called radios, but the radio we are talking about is usually a conventional communication tool, which has both receiving and transmitting functions and can be used to transmit radio signals to communicate with others.

1. 1. 1 What is a radio station?

In fact, the radio we listen to every day is broadcast, but it is transmitted through a "radio station". The radio station is extremely powerful, the transmitting antenna is in a very good position, and the coverage area is extremely wide, so the receiver (that is, the radio) within its coverage area can receive its signal and convert it into sound for broadcasting.

Now imagine that you and your friend M are holding a radio receiver and a "radio transmitter", that is, the radio transmitter that everyone is talking about. It has the functions of transmitting and receiving at the same time, and can talk to each other.

1. 1.2 frequency m frequency m frequency band

Think about the 97.4MHz and 103MHz that people usually listen to, that is, the frequency may be correct, and the channel is a bit far-fetched, but it is really misleading to often say "103.9 channel and 97.4 channel".

97.4MHz is the frequency point of the music station, 103MHz is the frequency point of the traffic station, and 438.500MHz is the transmitting and receiving frequency point that Beijing amateur radio enthusiasts can legally use (400MHz frequency band, other frequency bands also have the legal frequency point of amateur ham).

Obviously, everyone's FM radio does not support reception above 430 MHz (it seems that the FM part is between 86- 107MHZ). Therefore, if you want to transmit and receive signals at the frequency of 438.500MHZ, you need professional equipment, which is what you usually call "a car station/a handheld station/a base station supporting amateur frequency bands" and so on.

If 438.500 is a frequency, it also belongs to the 430MHZ band. Let's call 430.000-439.999 amateur 400M band, also called amateur 70CM (cm) band (wavelength), because this band is mainly allocated to amateur radio enthusiasts.

The primary HAM may be exposed to "2m band" or "140 MHz amateur band", which is between144.000-145.999mhz, which is also the frequency band that HAM can use.

1. 1.3 "amateur radio"/"professional" > >;

Question 9: How to know the frequency band of fixed-frequency walkie-talkie in two ways?

When 1 is sent by the frequency meter and the fixed-frequency interphone, the frequency meter will display the frequency value.

If FM walkie-talkie has frequency scanning function, it can also be found out by using the signal sent by frequency setter. You'd better know the frequency range of the tuner in advance.

Generally, it is a high-end machine between 450 and 470. Generally between 400 and 470. And take out its battery, the frequency range can be found on the back of the machine.

Question 10: The frequency and channel mode of walkie-talkie can know the frequency anytime and anywhere, while the channel mode can only know the number of channels but not the frequency.