The intermediate frequency stages of a superheterodyne radio are where the main amplification is provided and where adjacent channels filtering is found.In this way the IF stages of a superhet radio are some of the most exacting stages in terms of design. Gain, overload performance, filtering and a host of other requirements are key to the performance of the whole radio.
Laptop computers provide a really convenient method of providing higher levels of computing power combined with portability.Today& 39;s laptops provide very high levels of capability, often rivalling many desktop machines so they often don& 39;t limit what is required.Also they can easily be linked in with a larger screen, keyboard and mouse along with other peripherals for office or home use and in this way laptop computers can be the ideal option for many applications.
Arduino is one of a number of board based small computers that is intended for use within education and by hobbyists and makers. Arduino uses a computer board for which several options are available with additional functionality like Wi-Fi, LoRa and Sigfox interfaces, etc.In this way it is possible to use the Arduino computer as the basis for a variety of different projects.
Electronics Events, Exhibitions and Trade Shows25 Jun - 27 Jun 2021Messe Friedrichshafen, Friedrichshafen, GermanyHAM RADIO Friedrichshafen 2020 CancelledHam radio Friedrichshafen 2020 has been cancelled in view of the Coronavirus pandemic. However the event for 2021 is going ahead and should be as good as ever.
There is a very wide variety of computer printers that are available to buy. There are many different types with a variety of specifications and capabilities. This enables any prospective buyer to select exactly what is needed for the given situation.Some computer printers provide far more than just printing capability, with scanning, copying, and double sided and other paper handling capabilities.
There is a variety of different antennas that can be bought for VHF UHF amateur radio giving good performance and excellent value for money.Although the most popular bands are 2 metres and 70 centimetres, antennas can be bought for the other amateur radio bands as well.It is possible to buy single band antennas, dual band, triple and even quad band antennas which can be very convenient if a variety of bands need to be covered.
The HF bands are full of activity - there is always something interesting on one band or another. There is a good variety of HF transceivers for these bands and they represent excellent value.From the mobile/basestation budget transceivers, through the mid range ones to the really top end ones, there is something that everyone can buy.
The oscilloscope is a particularly useful item of test equipment that can be used for testing and fault-finding a variety of electronics circuits from logic circuits through analogue circuits to radio circuits. It is necessary to know how to use an oscilloscope properly to be able to make the best use of it.
There is an enormous variety of very good books about amateur radio available. These books provide an essential reference for any ham radio station.* Can& 39;t see what you want - just enter a different description in the search box. Next page
Dummy loads are used within amateur radio to dissipate the power from a transmitter without radiating it. When testing the transmitter, setting it up or whatever, a dummy load will be particularly useful.There is a good selection of dummy loads to buy, so it is possible to choose what is needed, whether it is a low of high power type.
The oscilloscope is one of the most widely used test instruments for any form of electronic testing whether for RF design, general electronic circuit design, electronics manufacturing, service, repair and for use in many more applications.Accordingly there are many types os oscilloscope available. Technology has moved forwards with analogue giving way to digital, and a variety of forms of oscilloscope to meet the ever increasing needs of electronic circuit design, electronics manufacture and many more areas.
As the name indicates, metal oxide film resistors axial leaded resistors that are made from a thin film of metal oxide that has been deposited into a ceramic rod.The metal oxide film resistor was considered as the successor to the carbon film resistor as its performance was superior in most respects.
LDG Electronics is renowned for producing excellent HF antenna tuners or ATUs and similar amateur radio accessories. They produce a number of auto-tuning ATUs or antenna tuners that are able to match a very wide variety of antennas and can interface to the control circuitry of the major popular HF transceivers.
The term digital phosphor oscilloscope, DPO is not as widely used today. It was a term that was more widespread when digital oscilloscopes were first introduced..The digital phosphor oscilloscope, DPO scope has a different architecture to that of the more traditional digital / digital storage types and this enables it to process signals more quickly.
Variable resistors, or as they are often called potentiometers are used in many areas of electronics. They are used for volume and gain controls as well as a variety of other applications. Preset variable resistors or potentiometers are also used in circuits that need a small adjustment to be made to set the circuit up after manufacture.
Capacitor Tutorial Includes:Capacitor usesCapacitor typesElectrolytic capacitorCeramic capacitorTantalum capacitorFilm capacitorsSilver mica capacitorSuper capacitorSMD capacitorSpecifications & parametersHow to buy capacitors - hints & tipsCapacitor codes & markingsConversion tableThe silver mica capacitor provides very high levels of performance with close tolerance values with low levels of value change with temperature.
Soldering Tutorial Includes:Soldering basicsManual soldering: how to solderSoldering ironsTools for solderingSolder - what it is and how to use itDe-soldering - the secrets of how to do it properlySolder jointsPCB solder resistSee also:SMT soldering techniques for PCB assemblyOne of the keys to successful soldering is having he right tools to hand to help make the job easier and to do things in the best way possible.
The ARRL, American radio Relay League has a wide portfolio of books about amateur radio covering all the main topics as well as a huge number of niche topics associated with the hobby.* Can& 39;t see what you want - just enter a different description in the search box. Next page
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 are many different types of microphone that are a available.
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 noteUnderstanding the different specifications used to define the performance and mechanical characteristics of coaxial cable enables the right form of feeder to be chosen for the given situation.
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 noteRF coaxial cable is very robust bust consideration must be given when using it is a variety of environments to ensure that it is able to withstand them without any undue degradation in performance.