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Key points: Master the various propagation paths of electromagnetic waves.
When planning and building a mobile communication network, from determining the frequency band, allocating the freque...[Details]
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What is the reason for the large fluctuation of mass flow meter? It is normal for the mass flow meter to fluctuate, which is related to many factors, such as whether the pressure in the pipeline ...[Details]
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1. Introduction
Resistance furnaces are widely used in chemical, metallurgical and other industries, so temperature control is of great significance in industrial production and scientific res...[Details]
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The most common problems with general electronic products are: RE--radiation, CE--conduction, ESD--static electricity.
Communication electronic products not only include the above three items...[Details]
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The STK465 thick film audio power amplifier has a rated audio power of 2x30W (at 8Ω load) or 2x40W (at 4Ω load), and a harmonic distortion of 0.08% (at 8Ω load) or 0.2% (at 4Ω load). It only needs a s...[Details]
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When SM2..0 is 011, the SLEEP instruction will put the MCU into power-saving mode. This mode is different from the power-down mode in only one way: if the timer/counter 2 is driven asynchronously, t...[Details]
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On July 31, according to Tencent News, on July 29, SAIC Group held an extraordinary shareholders' meeting. President Jia Jianxu introduced SAIC Group's recent performance goals, new products, refor...[Details]
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A new clip released on YouTube today gives a rare look at a "Death Star" iPhone 4 prototype that features some differences from the production model. The video comes from a clip uploaded by You...[Details]
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There are three types of full-color OLED displays according to the panel type: RGB pixel independent light emission, light color conversion (color conversion) and color filter (color filter).
...[Details]
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In the IC card public telephone system, online public telephones have gradually gained people's favor due to their high confidentiality and strong scalability. This public telephone system is place...[Details]
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Translated from eetimes Seattle-based startup Lumotive is taking three approaches to adding smartphone lidar chips to its roadmap. Lumotive announced that later this year it will be sampling new ...[Details]
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Lantronix (NASDAQ: LTRX), a provider of secure data access and management solutions for the Industrial Internet of Things (IoT), announced that it has completed its acquisition of all of the outstan...[Details]
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Recently, the Sichuan Provincial Development and Reform Commission and the Energy Bureau issued the "Interim Measures for the Construction, Operation and Management of Public (Special) Charging Inf...[Details]
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This simple headphone amplifier circuit can be directly connected to other compact devices such as CD players, walkmans, tuners and recorders. Theoretically, this series of headphone amplifier circ...[Details]
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In the S3C44B0 development board, use the loadb command provided by UBOOT to load the application program to SDRAM for running.
1. Development board description:
The development board has...[Details]
RF/Wirelessly
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