FDMA, TDMA, CDMA, OFDMA, and SDMA: Key Differences and …
WEBJan 22, 2013 · 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.
What’s the Difference Between PNP and NPN? - Electronic Design
WEBOct 28, 2022 · 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 ...
Understanding Intermodulation Distortion Measurements
WEBOct 9, 2013 · Understanding Intermodulation Distortion Measurements. Oct. 9, 2013. Intermodulation distortion is an important metric of linearity for a wide range of RF and microwave components. Fundamentally ...
Welcome To Antennas 101 - Electronic Design
WEBJul 29, 2021 · 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
WEBOct 24, 2011 · 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 ...
Understanding Modern Digital Modulation Techniques
WEBJul 14, 2021 · 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 ...
What’s The Difference Between Watts And Volt-Amperes?
WEBMay 2, 2012 · 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 ...
What’s The Difference Between HBM, CDM, And MM Test?
WEBMar 3, 2014 · Usually, the stress level of MM ESD is approximately 10 times lower than that of HBM ESD. Also, the protection voltage level for HBM typically is ~2 kV while for MM it is ~200 V and for CDM it is ...
Select the Right Varistors for Overvoltage Circuit Protection
WEBJan 26, 2015 · 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 ...
What’s the Difference Between RMS and Peak Watts?
WEBJan 17, 2020 · The difference between peak watts and RMS watts is that peak watts are the maximum output, while RMS watts are the average output. For example, a speaker with a peak wattage of 100 W and an RMS ...