RFPMR446 Radio Frequency Channels and Walkie Talkies
An overview of PMR446 radio frequency channels used in walkie-talkies, including their frequencies and applications in short-range voice communications.
Terminology
Showing 25 posts (Page 87 of 131)
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PNP vs NPN Sensor: Understanding the Key Differences
Learn the difference between PNP and NPN sensors, including how they work and their 3-wire diagrams. Discover the fundamentals of sourcing vs sinking.
PNP vs NPN Transistors: Key Differences Explained
Understand the core differences between PNP and NPN transistors in terms of structure, conduction, usage, and terminal resistance.
POCSAG vs. FLEX vs. ERMES: Paging Protocol Comparison
Explore the differences between POCSAG, FLEX, and ERMES paging protocols, including their features, functionalities, and roles in communication systems.
POF vs GOF: Plastic Optical Fiber vs Glass Optical Fiber
This page compares POF and GOF, highlighting the differences, advantages, and disadvantages of Plastic Optical Fiber and Glass Optical Fiber.
Point Contact vs. Hot Carrier Diode: Key Differences
Explore the differences between point contact and hot carrier (Schottky) diodes, including construction, advantages, disadvantages, and applications in RF circuits.
Polar Coding in 5G: Advantages and Disadvantages
Explore the benefits and drawbacks of Polar Coding in 5G networks, focusing on its application in control channels and eMBB services.
Polar Line Coding: Advantages and Disadvantages
Explore polar line coding techniques, including NRZ and RZ, with their benefits and drawbacks, such as DC voltage reduction and synchronization issues.
Polar Orbiting Satellites: Definition, Examples, Advantages & Disadvantages
Explore polar orbiting satellites, their characteristics, applications in Earth observation, and examples like SCATSAT-1. Learn about their advantages and disadvantages.
POS Terminal: Advantages and Disadvantages
Explore the benefits and drawbacks of using POS terminals for electronic payments, including security, convenience, and potential risks.
Position, Displacement, and Level Sensors: An Overview
Explore position, displacement, and level sensors, including selection criteria, potentiometer-based position sensing, and fluid level measurement.
Positive vs. Negative Feedback: Differences and Applications
Explore the core differences between positive and negative feedback in amplifiers, including their advantages, disadvantages, and applications.
Power Amplifier (PA) Efficiency Types Explained
Understand drain efficiency, power-added efficiency (PAE), and overall efficiency in power amplifiers. Equations and definitions provided.
Power Back-Off in Amplifiers: IPBO and OPBO
Learn about power back-off in amplifiers, including input back-off (IPBO) and output back-off (OPBO), and how they relate to amplifier linearity and efficiency.
Power Divider vs. Power Combiner: Understanding the Differences
Explore the functionality of power dividers and combiners in RF circuits. Learn how they work, their reciprocity, and how they are used.
Power Line Transformers: Definition, Applications, and Advantages
Explore power line transformers: their function in voltage transformation, applications in substations and industries, and advantages like reducing power losses.
Power Management IC (PMIC) Explained
Learn about Power Management Integrated Circuits (PMICs): their functions in power conversion, voltage regulation, battery charging, and overall efficiency in electronic devices.
Power over Ethernet (PoE) Explained
Learn about Power over Ethernet (PoE), its standards (802.3af, 802.3at), device types (PSE, PD), and applications in networking and wireless communication.
Power Resistor Manufacturers in USA and INDIA
Explore the features and benefits of power resistors explore its manufacturers in USA and INDIA.
Power vs Energy: Understanding the Key Differences
Explore the fundamental distinctions between power and energy, including their units, measurement techniques, and various power types like average, pulse, and RMS power.
Powerline Communication (PLC) Technologies
Explore various Powerline Communication (PLC) technologies like Lonworks, KNX, HomePlug, and more. Compare frequency bands, modulation types, and organizations behind each technology.
PowerLink: Applications, Advantages, and Disadvantages
Explore PowerLink, an open-source real-time Ethernet protocol for automation. Learn about its features, benefits, drawbacks, and applications in industrial settings.
PPG Sensor: Advantages and Disadvantages
Explore the benefits and drawbacks of PPG sensors, including their use in wearable devices for health monitoring and limitations compared to ECG.
PPTP vs L2TP: Key Differences Explained
Explore the key differences between PPTP and L2TP VPN protocols. Learn about security, performance, port requirements, and more in this comparison.
Pre-emphasis and De-emphasis Explained
Learn about pre-emphasis and de-emphasis techniques used in FM circuits to improve the signal-to-noise ratio by emphasizing and then attenuating high-frequency components.
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