Transmission frequency is a very important technical parameter in radio broadcasting, is a limited natural resource of radio spectrum, and is one of the indicators to measure the quality of the radio wave emitted by the medium and short wave broadcasting station.
The transmitting frequency is radioThe very important technical parameter in broadcasting is the limited natural resource of radio spectrum, and it is one of the indexes to measure the quality of radio wave emitted by medium and short wave broadcasting station. The carrier frequency is in the process of signal transmission, not the signal is directly transmitted, but the signal load to a fixed frequency wave, this process is called loading, such a fixed frequency.
Carrier frequency refers to the frequency of the fundamental frequency oscillator waveform that carries the information signal used in communication. In a general broadcast or television signal, the carrier frequency is usually between a few hundred kHz and a few hundred MHz, and different standards and application scenarios are possibleThere will be different carrier frequencies. In radio communication, carrier frequencies are usually generated by frequency modulation, amplitude modulation, and phase modulation techniques and can be selected and adjusted by a tuner or other device.
A carrier wave is a radio wave of a specific frequency, in Hz, that is modulated in frequency, amplitude modulation, or phase to transmit speech, music, images, or other signals. The carrier frequency is in the process of signal transmission, not the signal is directly transmitted, but the signal load to a fixed frequency wave, this process is called loading, such a fixed frequency.
With 300,000Dividing by the wavelength is the frequency of radio waves we often say, the wavelength of radio waves is inversely proportional to the frequency, the higher the frequency of radio waves, the shorter the wavelength. The common units of wavelength are meters, and the common units of frequency are Hertz, kilohertz, megahertz, and so on.
The network interpretation of the carrier is: carrier or carrier frequency (carrier frequency) is a physical concept, is a specific frequency of radio waves, unit Hz, is an electromagnetic wave such as can be modulated in frequency, amplitude modulation or phase to transmit language, music, images or other signals. The structure is: load (semi-enveloping structure) wave (left and right structure). Spell itThe sound is: zaib. The part of speech is noun. The annotation is, veil ㄞ_ㄅ.
This time to disassemble is a TWS true wireless headset product TONEMAC W10 wireless charging carrier , support a new generation of Bluetooth 3 wireless charging carrier, more stable connection, faster transmission, lower power consumption wireless charging carrier , stronger anti-interference ability.
tonemac headset common to all mobile phones. It is a true wireless headset product of Tang Mai, supporting Bluetooth 3, providing high-quality sound quality while ensuring fast and low latency connection, equipped with wireless charging carrier MEMS silicon wheat inside the headset, through the call algorithm, to provide clear calls. Inside the charging case is the SSP707 power management chip from Rising Microelectronicsid=' Does vivos9 support wireless charging function '> Does vivos9 support wireless charging function
The S9 model does not support wireless charging. vivo/iQOO currently supports wireless charging devices are: iQOO 11 Pro, X90 Pro, X90 Pro, X Fold, iQOO 10 Pro, X80 Pro Snapdragon, X80 Pro Guet, X Fold, X Note, iQOO 9 Pro, X70 Pro, iQOO 8 Pro.
vivos9 does not support wireless charging. vivoS9 is a mobile phone product released by vivo on March 3, 2021, because it has no hardware module for wireless charging, so it does not support wireless charging; The vivoS9 has a 4,000mah non-removable battery and supports 33 watts of wired charging.
vivo S9 this mobile phone does not support wireless charging function, in terms of battery life, vivo S9 is equipped with a 4000mAh capacity battery, support 33W flash charge, use the original charger to charge the mobile phone, 30 minutes can be charged to 66%It can be fully charged in less than an hour.
1, vivo X9 mobile phone does not support wireless charging, so it is not possible to use wireless charger. Additional note: vivo X9 mobile phone supports dual engine flash charge function, you can enter the Settings -- battery, turn on the "dual engine flash charge" switch.
2, Operating mobile phone: vivox90 operating system: OriginOS3vivox90 wireless charging sideThe method is as follows: First go to the phone Settings option. Then find the battery in the Settings screen. Then find the charging Settings in the picture. Finally slide down to find and turn on wireless reverse charging. The principle of wireless charging: The wireless charging system mainly adopts the principle of electromagnetic induction, and realizes the energy transfer through the energy coupling of the coil.
3, vivo mobile phone does not support wireless charging function, so vivo X9 mobile phone can not use wireless charger. vivo X9 mobile phone support dual engine flash charging, dual engine flash charging system has an innovative dual charging chip and dual charging circuit, two sets of circuits at the same time power supply, bring moreFaster and more stable charging effect.
4, the user only needs to place the phone on the charger that supports Qi charging to achieve charging. However, it should be noted that because the Qi charging board can only support 5W charging power, the charging time is slightly longer than the traditional charging cable. In general, the Vivox9 supports wireless charging. Through this high-quality charging method, users can save the tedious steps of the charging line and enjoy the convenient experience of fast charging anytime and anywhere.
5, wireless charging technology, such as the Qi standard, allows users to charge the device without the traditional wired connectionElectricity. Users simply place their phone on a compatible wireless charger to start charging. This charging method provides greater convenience and flexibility.
1, Millet 55W vertical air-cooled wireless charging using PC flame retardant material plastic shell, fuselage edge clear end corner arc transition, support board is black, base sandblasting treatment is gold. From the front, the front end of the base is equipped with LED indicator light, the upper and lower layers of the support board, using different designs. Indicator light is green when working.
2, millet vertical air-cooled wireless charger (55W black) 199 yuan at present millet maximum power (charging speed is the fastest) wireless charger, if the phone is 30W or 33W wireless charging power, then it is recommended that you "redundant" to buy this power of the wireless charger, because the mobile phone upgrade faster, The wireless charger this product can be used for several years, and the new mobile phone can also achieve power coverage in the future.
3, compared with the common market 10W wireless charging technology, Xiaomi's 30W wireless flash charge can charge half of the 4000mAh battery in 25 minutes, achieving the efficiency of "wireless beyond wired". Xiaomi's vertical air-cooled wireless charge 30W is cleverly designed with an ergonomic tilt, which is convenient for users to operate while charging, and the built-in ultra-quiet fan can effectively actively dissipate heat, improving the comfort of the charging process.
4, Conclusion: Millet vertical air-cooled wireless charger with its small size, large output characteristics, become my recent purchase highlights. The following is an intuitive introduction to this product: Unboxing experience: / XiaomiVertical air cooled wireless charge 30W in white transparent plastic packaging, visible at a glance. Its simple and generous orange-red packaging box contains the main body, data cable, charging head and manual, reflecting the efficient style of Xiaomi.