4 steps of walkie-talkie frequency modulation

The same frequency is the premise that two walkie-talkies can talk. Many people think that as long as the two walkie-talkies are the same brand, they can talk. Actually, if they are not at the same frequency, even the same brand and the same type of walkie-talkie can't talk; if the frequency The same, even if the same brand of walkie-talkie can talk, so how to adjust the frequency of the walkie-talkie is very important.

Generally speaking, there are two types of handheld walkie-talkies: one is a professional walkie-talkie, and the other is an amateur walkie-talkie. The frequency modulation methods of the two walkie-talkies are different.

How to adjust the frequency of the walkie-talkie

The amateur intercom body can directly use the knob provided by the body to adjust the frequency. Generally, there is a fixed stage. As long as the two intercoms are adjusted to the same frequency band, they can talk. Professional walkie-talkies need to be connected to the computer to adjust the frequency, just like connecting the mobile phone to the computer, and reading and writing the radio frequency through the data line, driver and software.

When the frequency of the two walkie-talkies is different, how do you write the frequency to the walkie-talkie? Mainly divided into the following four steps:

1. Install the writing frequency software KPG87D on the computer, and connect the walkie-talkie to the computer with the data cable;

2. Open the writing frequency software KPG87D, press the alt key to pop up the window, use the arrow keys to control the left and right, press the Enter key to confirm;

3. Read the data, press the Enter key after the reading is completed, a series of frequency point data will appear;

4. Read the data you need from the machine and directly cover it on another machine. The two walkie-talkies can talk.

Walkie-talkie writing frequency software

Note that we generally buy civilian walkie-talkies. The national frequency band for civilian walkie-talkies is regulated. The open frequency band is 409-410MHz, which is divided into 20 channels, called “public channel”. The walkie-talkie with power below 0.5 watt is not. The transmission frequency can be changed by programming. In addition, due to the different frequency bands opened by countries, if it is a walkie-talkie purchased from abroad, it is impossible to talk with the domestically sold walkie-talkie under normal circumstances. Although it can be frequency-modulated, strictly speaking, it is illegal to use such a walkie-talkie, so it is not recommended. Purchased from abroad.