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introduction
Frequency hopping communication using MSK modulation has the advantages of concentrated main lobe energy, fast side lobe fading roll-off, high spectrum utilization and strong anti...[Details]
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Improved circuit of Sanyo DC-SL mini stereo
I have a Sanyo DC-Sl mini stereo in my bedroom. I have been using it for years. Although it does not have the popular VCD/DVD playback a...[Details]
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When programming PLC programs, no matter you are a novice or an experienced programmer, you will make the following low-level mistakes. Because this error is non-grammatical, the error cannot be de...[Details]
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background:
In modern life, bathing has become an indispensable part of people's lives. Due to the fast pace of life, most of us choose to take a shower. In this way, we often encounter such a ...[Details]
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Double data rate (DDR) memory technology has grown dramatically over the past five years as oscilloscope users have demanded faster, lower power, and smaller memory. DDR4 stands for the fourth gene...[Details]
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Since 2020, battery swapping has ushered in a "new trend" with the support of policies. Companies such as Geely Technology, Changan, and Dongfeng have entered the market one after another. At one tim...[Details]
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Thermocouple is one of the most commonly used temperature measuring devices. It directly measures temperature and converts the temperature signal into a thermoelectric potential signal, which is th...[Details]
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The OPPO Find X3 series has been very popular recently, both for its attractive appearance design and its configuration technology. Many netizens even call the OPPO Find X3 series "the contend...[Details]
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Selection of coupling capacitors and distributed capacitors
From the circuit point of view, there are always driving sources and driven loads. If the load capacitance is relatively large, the drivin...[Details]
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As one of the earliest automakers in the world to enter the new energy field, Nissan has rich technical accumulation and market experience. The second-generation e-POWER technology has also given n...[Details]
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Exxelia, a leader in the manufacture of complex passive components and subsystems for harsh environments, is returning to Mars aboard the Perseverance rover to provide parts for three critical, high-...[Details]
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When repairing electronic circuit boards, the resistors on the circuit boards account for about 50% of the entire electronic components. If there is a fault in the circuit, the resistor is one of t...[Details]
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In the classic TV series "The Jetsons," the protagonist hires a robot butler named "Rosie" who also serves as a makeshift security system and companion for the family. Although "The Jetsons" takes...[Details]
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The password lock controller has 0-9 numeric keys on the keyboard, function keys: confirm and cancel, etc., and composite keys can be set. The number of digits and password can be set arbitrarily. Wh...[Details]
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According to previous official news from Motorola, its moto edge X30 will achieve the "true debut" of the new generation Snapdragon 8 chip, and the new phone will be officially released tomorro...[Details]
DIY/Open Source Hardware
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