What are the primary applications of walkie talkies in?

Interphones are primarily used in professions such as public security, civil aviation, transportation, water conservancy, railway, manufacturing, construction, and service. They are used for communication and command among group members to improve communication power and enhance the ability to respond quickly to emergencies. With the entry of walkie talkies into the civilian market, people are increasingly using walkie talkies for travel and shopping.

Why do people still choose to use walkie talkies when mobile phones are very popular today?

This is because there are many differences between walkie talkies and mobile phones:

1. Radio is not restricted by the network, and in areas where the network is not covered, it allows users to easily communicate;

2. The walkie talkie provides one-on-one and one to many communication methods, with one press to speak and simple operation, making communication more comfortable, especially in urgent scheduling and collective collaborative work situations. These characteristics are very important;

3. Low call costs.

How far is the communication interval between walkie talkies?

The usual communication interval for walkie talkies is usually 3-5 kilometers, but in the case of high maintenance buildings or mountain obstacles, the communication interval may be relatively shorter. When there is network support, the call scale of walkie talkies can reach tens of kilometers.

Aikemu aviation intercom

Can mass customers buy walkie talkies?

Mass customers can also buy walkie talkies, but those who have previously purchased and used walkie talkies must apply to the local radio processing committee (referred to as the "committee"), collect a radio license, and pay frequency occupancy fees. Since December 6, 2001, China has opened up the civilian walkie talkie market, using 400MHz civilian walkie talkies with a transmission power of less than 0.5 watts without any procedures.

Can the walkie talkie make phone calls?

With network support, walkie talkies can be used for making phone calls. But if it is only a routine call between single machines, it cannot achieve the function of making phone calls.

Do I have to pay for using a walkie talkie to make calls?

There is no need to pay for making calls using traditional walkie talkies. No matter how frequently you use it, you only need to pay a frequency occupancy fee of a few tens of yuan for each walkie talkie every year. If you use a public walkie talkie, you don't need to pay any fees.

Aikemu Amateur Car Radio ID-4100

What is a public intercom?

Public walkie talkie refers to a wireless walkie talkie with a transmission power not exceeding 0.5W and operating at a designated frequency. Its radio frequency technical indicators such as transmission frequency and power must meet the following requirements:

1. Working frequency (. 9000; 409. Unit: MHz）: 409.7500、 409.7625、 409.7750、 409.7875、 409.8000、 409.8125、 409.8250、409.8375、 409.8500、 409.8625、 409.8750、 409.8875、 4099125、 409.9250、 409.9375、 409.9500、 409.9625、409.9750、409.9875；

2. Modulation method: F3E；

3. Useful Transmitting Power (EIRP):<0.5W;

4. Transmission frequency tolerance:<+ 5ppm；

5. Stray radiation from transmitter:< 50uW；

6. Receiver stray radiation:< 20nW；

7. Channel spacing: 12.50kHz.

Why is there a frequency constraint when using walkie talkies?

In order to ensure that the vast majority of users' calls are not disturbed and frequency resources are used reasonably, the Wireless Station Management Committee has divided the use of frequencies and stipulated corresponding frequency scales for different professions. When purchasing a walkie talkie, users need to request a frequency point from the local radio processing committee.