Category Miscellaneous

Electronic Technology: Gadget Guides
Miscellaneous

Electronic Technology: Gadget Guides

Electronics has entered most aspects of everyday life from the home right through to the office, business scienftific research and much more. In this section of Electronics Notes we aim to look at some of these items that may not be covered elsewhere and look at their technology and how they work.Power & power supplies, chargers, etcPower management is a key area of electronic equipment these days: everything from charging to the management of battery life and when to recharge batteriesAudio visualHome gadgets

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Miscellaneous

Ribbon Microphone

Microphone Tutorial Includes:Microphone basicsMicrophone typesMicrophone specsMicrophone directionalityDynamic microphoneCondenser microphoneElectret microphoneRibbon microphoneCrystal / ceramic microphoneBoundary / PZM microphoneCarbon microphoneHow to buy best microphoneMicrophones for videoMicrophones for vocals/ singingAlthough not quite as widely used these days, the ribbon microphone is capable of providing very high quality sound.
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Miscellaneous

How to Buy the Best TV Antenna Amplifier: aerial booster

TV antennas buying guides include:Buying a TV antennaBuying TV antenna amplifier / boosterSometimes televisions need an antenna or aerial amplifier /booster. This antenna amplifier will enable the signal to be increased in strength so that a better signal can be viewed.However when thinking about buying and installing an antenna amplifier / aerial booster, there are a number of points to consider so that the best antenna amplifier can be bought and installed to give a better picture and better TV reception.
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Miscellaneous

DECT Standard: ETS 300 175

DECT cordless telephones includes:DECT basicsDECT standardDECT RF interface / physical layerDECT channels & bandsDECT securityCordless phone buying guideThe DECT cordless phone system has gain widespread acceptance. Many millions of DECT phones are in use around the world, its use spreading well beyond the boundaries of Europe where it was originally envisaged it would be used, and it is used in well over 100 countries around the globe.
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Miscellaneous

Coax Cable Attenuation / Loss

Coax Tutorial Includes:Coax feederCoax specifications overviewCoax impedanceCoax loss / attenuationCoax power ratingCoax velocity factorCoax environmentalCoax installation tipsCoax cable typesTips for choosing right coax cableBuying TV coax: points to noteWhen deciding upon any form of coax cable it is necessary to assess the loss that it will introduce.
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Miscellaneous

DECT Frequencies, Channels & Frequency Bands

DECT cordless telephones includes:DECT basicsDECT standardDECT RF interface / physical layerDECT channels & bandsDECT securityCordless phone buying guideThe DECT channel frequencies most commonly found between 1880 - 1900 MHz. This allocation was defined in the original standard and is the band that is normally accepted for this form of cordless phone technology.
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Miscellaneous

Microphone for Singing / Vocals - performance & recording

Microphone Tutorial Includes:Microphone basicsMicrophone typesMicrophone specsMicrophone directionalityDynamic microphoneCondenser microphoneElectret microphoneRibbon microphoneCrystal / ceramic microphoneBoundary / PZM microphoneCarbon microphoneHow to buy best microphoneMicrophones for videoMicrophones for vocals/ singingThere is a huge number of microphones of all types available.
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Miscellaneous

FRS Family Radio Service

Licence free radio systems:Licence free radio systemsCitizens band, CBPMR446FRS Family Radio ServiceHow to use a licence free radioHints & tips on buying licence free radioThe Family Radio Service (FRS) is an improved walkie-talkie radio system authorized in the United States since 1996. This personal radio service uses channelized frequencies around 462 and 467 MHz in the ultra high frequency (UHF) band.
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Miscellaneous

10 Gigabit Ethernet, 10GE IEEE 802.3ae

Ethernet IEEE 802.3 Includes:Ethernet introductionStandardsEthernet data frame structure100Mbps Fast EthernetGigabit Ethernet, 1GE10 Gigabit Ethernet, 10GEEthernet cablesHow to buy Ethernet cablesRouters, hubs, switches - the differencesPower over Ethernet, PoECarrier Ethernet10 Gigabit Ethernet is an Ethernet standard that can carry data at a rate of 10 gigabits per second.
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Miscellaneous

Dip Meter Antenna Measurements: Resonant Frequency

A dip meter or grid dip oscillator, GDO can be used for many antenna measurements including measuring an antenna resonant frequency.Dip Meter Tutorial Includes:Dip meter / GDO basicsHow to use a dip meter / GDOUsing GDO to measure inductanceUsing GDO to measure capacitanceMeasuring antenna resonant frequencyMeasuring feeder electrical lengthThis is probably the most obvious use for a dip meter in connection with an aerial.
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Miscellaneous

Wi-Fi Generation Numbering

WiFi IEEE 802.11 Includes:Wi-Fi IEEE 802.11 introductionStandardsWi-Fi Alliance generationsSecurityHow to stay safe on public Wi-FiWi-Fi BandsRouter location & coverageHow to get best Wi-Fi performanceHow to buy the best Wi-Fi routerWi-Fi boosters, range extenders & repeatersWi-Fi wired & powerline extenderWi-Fi generation numbering with numbers like Wi-Fi 5 and Wi-Fi 6 have recently been introduced into common usage.
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Miscellaneous

Logic Analyzer Probes & Connectors Tutorial

Logic Analyzer Includes:Logic analyzer basicsHow to use a logic analyzerLogic analyzer specificationsProbesLogic analyzers can have a large number of probes that need connecting to a variety of points on the circuit under test to be able to monitor the required number of lines.In view of the number of lines and the small size required for the probes, they can be difficult to design.
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Miscellaneous

Absorption RF Power Sensor Types

RF & microwave power meter Includes:RF power meterPEP, average, & pulse powerPower measurement techniquesIn-line power meterAbsorption-power meters & sensorsRF power is not always easy to measure. There are several methods of measuring RF power, each one having its own advantages and disadvantages.
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Miscellaneous

Ethernet IEEE 802.3 Standards

Ethernet IEEE 802.3 Includes:Ethernet introductionStandardsEthernet data frame structure100Mbps Fast EthernetGigabit Ethernet, 1GE10 Gigabit Ethernet, 10GEEthernet cablesHow to buy Ethernet cablesRouters, hubs, switches - the differencesPower over Ethernet, PoECarrier EthernetLike any major system used within IT or any other area, it requires standards to be written and maintained.
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Miscellaneous

USB-C to HDMI: cables & adapters

HDMI Technology Includes:HDMI - the basicsHDMI versionsHDMI connectorsPinout / pin connectionsHDMI cablesUSB C to HDMIHDMI switch, splitter & matrix - the differencesMany laptops and other items of electronic equipment use USB C connectors and the trend is moving towards them only having USB C as their interface connector.
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Miscellaneous

How to Get the Best Wi-Fi Performance & Internet Speeds

WiFi IEEE 802.11 Includes:Wi-Fi IEEE 802.11 introductionStandardsWi-Fi Alliance generationsSecurityHow to stay safe on public Wi-FiWi-Fi BandsRouter location & coverageHow to get best Wi-Fi performanceHow to buy the best Wi-Fi routerWi-Fi boosters, range extenders & repeatersWi-Fi wired & powerline extenderThe COVID-19 Coronavirus outbreak has meant many people are working from home and need good Internet and Wi-Fi performance.
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Miscellaneous

Pulse Generator

Signal Generators includes:Signal generator basicsSignal generator types:RF signal generator basicsArbitrary waveform generatorFunction generatorPulse generatorPulse generators are items of electronic test equipment that are used to generate pulses - normally rectangular pulses.These pulse generators are used for a wide variety of applications, but most commonly as bench test equipment when developing logic circuits of various forms.
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Miscellaneous

How to Use a Spectrum Analyzer

Spectrum Analyzer Tutorial Includes:What is a spectrum analyzerSpectrum analyzer types and technologiesSuperheterodyne / sweep spectrum analyzerFFT spectrum analyzerRealtime spectrum analyzerUSB spectrum analyzerSpectrum analyzer tracking generatorSpecificationsSpectrum analyzer operationNoise figure measurementsPhase noise measurementsPulsed signal spectrum analysisSpectrum analysers are key test instruments for use when testing radio frequency, RF circuits, modules and units.
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Miscellaneous

RF Power Measurements: average, pulse & peak envelope power, PEP

RF & microwave power meter Includes:RF power meterPEP, average, & pulse powerPower measurement techniquesIn-line power meterAbsorption-power meters & sensorsIn order to ensure that power measurements are as accurate as possible, it is necessary to choose the right power sensor. Different signals have different waveforms and factors like average power, peak power, peak envelope power,- PEP and the like have a major impact on the type of power sensor needed.
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Miscellaneous

PXI Standard & Specifications

PXI tutorial includes:What is PXI?PXI standardPXI chassisPXI bus and backplanePXI controllerPXI cards & modulesPXI softwarePXI ExpressPXImc MultiComputingSet-up & build PXI systemPXI is an open standard and is run by an organisation with interested member companies. In this way, PXI meets the needs of users suppliers alike.
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Miscellaneous

Optical Time Domain Reflectometer OTDR

Time domain reflectometer, TDR, includes:TDR basicsOptical TDRAn optical time domain reflectometer enables problems, faults and other issues to be located on optical fibresEssentially an optical time domain reflectometer, OTDR is the equivalent of an electronic TDR, but for optical fibres.The OTDR operates by generating and injecting a series of optical pulses into a fibre.
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