When purchasing a walkie-talkie, some people who sell the walkie-talkie would like the customer to recommend that the digital walkie-talkie be a digital-analogue active switch. After all, will the digital walkie-talkie actively switch the module? Xiao Bian talks to you:
Some people say that the digital walkie-talkie can automatically switch over the digital-analogue.
So is this digital model compatibility with what we often see a concept?
I want to say, no!
We see that the introduction of many digital walkie-talkies will be written with digital-to-analog compatibility. This digital-to-analogue compatibility is a concept of dice! In fact, this walkie-talkie can receive digital and analog signals. You see the situation. I did not say to receive digital and analog signals together.
More precisely, digital and analog signals cannot be received together on the same channel (channel), but the machine itself has the function of receiving analog and digital signals.
You can write digital or analog frequency points on two different channels (channels), and then select the receiving digital or analog signal by turning the knob.
What about the active switching of the modulo?
That is, the same channel can both receive digital signals and receive analog signals without the need to twist the channel knob.
That's because in some digital walkie-talkies, there is a function called digital-analog mixed channel. Just write the parameters of the digital signal and the analog signal in this analog-digital mixed channel (the frequency of the digital-analog must be consistent!). The signal sent by the digital walkie-talkie, he can receive and simulate the signal transmitted by the intercom, he can also receive, if you want to ask, digital simulation of the signal sent together, then who received it? I just want to say that by manually pressing the PTT button, there is basically no complete launch. Then what kind of signal the digital radio receives first is the kind of signal!
There is a little demand to clarify! ! !
What I have said above all along is that the same channel of a digital walkie-talkie can receive both digital signals and analog signals. It is not said that digital walkie-talkies can actively transmit digital and analog signals together!
Digital walkie-talkie If the frequency is written in a digital channel, then he is actively sending a digital signal, and vice versa is an analog signal!
If a digital walkie-talkie writes a digital channel, in the digital-analog mixed channel mode, only when the digital walkie-talkie replies within 3-5 seconds after receiving the analog signal, the analog signal is sent out. If no response is returned after this time , then when the digital intercom launches again, it is the digital signal that launches! ! ! This time you want to launch, you can only talk to the analog channel through the channel knob! !
In a word: digital walkie-talkies can be forced to receive digital and analog signals on the same channel, but cannot actively transmit digital and analog signals on the same channel.
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