North American HS code tariff structures

List of the contents of this article:

• 1, How to turn off the car radio
• 2, Car Radio Button Description
• 3
  、North American HS code tariff structures' title='Why don't car radios use AM instead of FM?' > Why don't car radios use AM instead of FM?
• 4, Band classification of car radio

How to turn off car radio

Car radio offHow to close: If you want to turn off the radio in the car, the most direct way is to turn off the sound system on the central control panel. You can also switch to other audio modes (such as USB, iPod and Bluetooth? Audio) and the switch is usually set on the central control panel.

The way to turn off the car radio is as follows: find the previous radio switch button and press this button with your hand so that the car radio can be turned off.

Turn off the sound system on the central control panel. If you want to turn off the in-car radio, the most direct way is to turn off the sound system on the central control panel. You can also switch to other audio modes, and the switch is usually set on the central control panel.

There is a radio switch in the lower left corner of the car multimedia display screen. You only need to press it to turn off the radio.The correct way to use the radio of some models is to find the central control screen and swipe the screen to the right after starting the vehicle to find the operation interface of the radio.

Steps to turn off the car radio If you want to turn off the in-car radio, the most direct way is to turn off the sound system on the central control panel.

The first method is to turn off the radio directly by pressing the power switch of the radio. This method is suitable for the radio in the car without a lock screen password. If there is a lock screen password, you need to unlock it first. The second method is to close it through the multimedia control panel on the vehicle.

Car radio button description

Car radio button has on key, VOL/MENU key, MUTE key, LOUD key, DSP key, etc., the function introduction is as follows: switch button: press the switch key to control the switch of the radio.

Car radio button description: seek, track button: search frequency; powervolume knob: press to turn on or off the sound system, rotate to adjust the volume; mode button: switch the sound source; 6 buttons below the display: radio selection button; Tuneselect knob: adjust the frequency.

The button functions on the Toyota Corolla radio are as follows: sel/af button: switch the band of the stereo, such as switching from the am band to the af band. Pwr button: short press to directly start the audio device, long press for about 1 second to directly turn off the audio.Vol knob: adjust the sound volume according to your preferences.

Car radio button description: SEEK, TRACK button: search frequency; POWERVOLUME knob: press to turn on or off the sound system, turn to adjust the volume; MODE button: switch the sound source; (below the display) 6 buttons: radio selection press Button; TUNESELECT knob: adjust the frequency.

The button of the Volkswagen Baolai radio is shown in the figure below: the knob in the lower left corner of the radio is the key to turn on the radio. In the receiver mode, press the scan key briefly, and the radio will tune the radio station and play for 5 seconds, and then continue to search for the next radio station to play for 5 seconds until it stops after scanning.

Why don't car radios use AM instead of FM?

1. Users can choose different receiving modes to obtain different audio signals with signal strength and sound quality. Compared with FM radio, the sound quality of AM broadcasting is slightly worse. The frequency of the FM radio band is relatively high, the resources presented by the high-frequency band are rich, the system capacity is large, and the sound listened to is also more exquisite and detailed.

2. One is FM mode and the other is AM mode. Generally, FM is used more often. The following is the relevant introduction of fm and am: fm and am: FM is the FM broadcast of the radio, the AM band is the medium wave broadcast, and FM is the short wave. Amplitude modulation waves are divided into long waves, medium waves and short waves.

3. Different transmission methods: AM isIt is transmitted through satellites, but the launch state of the medium wave is centered on the launch station and propagates around in a circle. FM is also transmitted through satellites, in the form of waves between the ground and the trostosphere. The modulation method is different: AM is the modulation method of amplitude modulation used.

band classification of car radio

1. For car radios, there are only medium wave and FM at present. FM is only used for radio transmission in the city, and the distance is about 50 kilometers. Its characteristics are: good sound quality, but the propagation distance is relatively close.

2. There are two modes of car radio, one is am and the other is fm. In general, car owners use the fm button more often when listening to the radio, because fm is used to operate the FM of the radio, and am is used to adjust the band of the radio.

3. Full-wave: Full-band radio can listen to medium-wave, short-wave, FM, etc. Medium-wave or FM broadcast can be set to meet the local standards of countries around the world. Because the band of this kind of radio is full and there is no interval in the middle, it can listen to the broadcast of any radio frequency band at will.