FDMA, TDMA, CDMA, OFDMA, and SDMA: Key Differences and …
网页2013年1月22日 · The best example of this is the cable television system. The medium is a single coax cable that is used to broadcast hundreds of channels of video/audio programming to homes.
Understanding Modern Digital Modulation Techniques
网页2021年7月14日 · These techniques are used in many modern communication systems, such as cellular phones, Wi-Fi, and Bluetooth. Common digital modulation techniques include amplitude-shift keying (ASK), frequency ...
Welcome To Antennas 101 - Electronic Design
网页2021年7月29日 · This article is part of the TechXchange: Antenna Design 101. Download this article in .PDF format. This article was written by Louis Frenzel, author of Principles of Electronic Communications ...
Back to Basics: Impedance Matching (Part 1) - Electronic Design
网页2011年10月24日 · Here, the 36-Ω impedance of a λ/4 vertical ground-plane antenna is matched to a 75-Ω transmitter output impedance with a 52-Ω coax cable. It’s calculated as: ZQ = √(75)(36) = √2700 = 52 ...
9 Different Types of Sensor Transmitters - Electronic Design
网页2021年6月10日 · 12. The microcontroller is the core component in a smart transmitter. A microprocessor represents the core of smart transmitter. It can not only calculate, store, and process the measured data ...
What’s the Difference Between PNP and NPN? - Electronic Design
网页2022年10月28日 · 2. A PNP transistor has a layer of N-doped semiconductor between two layers of P-doped material. 3. An NPN transistor has a layer of P-doped semiconductor between two N-doped layers. The junctions ...
How to Select an AOI System - Electronic Design
网页A simple hardware implementation with technology based on industry standards will make installation, operation, training, and maintenance easier and overall cost of ownership less expensive. The ...
Understanding Wireless Range Calculations | Electronic Design
网页2013年4月3日 · Maximum path loss = transmit power – receiver sensitivity + gains – losses – fade margin. V – maximum path loss = 20 – (–100) + 12 – 12 = 120 dB. Once the maximum path loss has been ...
What’s The Difference Between Watts And Volt-Amperes?
网页2012年5月2日 · W and VA are both units of measurement for power, but that’s where the similarity ends. Watts do work or generate heat, while volt-amperes simply provide you with information you need to size ...
Select the Right Varistors for Overvoltage Circuit Protection
网页2015年1月26日 · Step 1: To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc. Given that no varistors have a voltage ...