Simon Brown, G4ELI, autor obľúbeného SDR Console, zverejnil 26. júla 2026 nový beta build 4138 v rámci vetvy 3. 4. Ide…
receiver
A receiver is a device that serves to amplify and process the signal captured by the antenna. Most often, radio amateurs encounter a superhet receiver, which uses signal processing at an auxiliary frequency, the so-called intermediate frequency. Direct mixing receivers are also suitable for beginners, which are structurally simpler. In recent years, SDR receivers have been spreading, which are characterized by high intermodulation resistance and the ability to adjust the receiver properties in software.
Málokterá značka v rádioamatérskom svete má tak úzko prepojený príbeh so svojím zakladateľom ako Yaesu. Za jej vznikom stojí jeden…
SDRoxide je nový softvérovo definovaný rádiový (SDR) transceiver s otvoreným zdrojovým kódom, napísaný kompletne v jazyku Rust. Autorom projektu je…
Každý rádioamatér, ktorý prevádzkuje KV stanicu v mestskom prostredí alebo v blízkosti priemyselných zdrojov rušenia, skôr či neskôr narazí na…
OpenWebRX+ je rozšírená a vylepšená verzia pôvodného open-source softvéru OpenWebRX, ktorý umožňuje sprístupniť SDR receiver cez sieť alebo internet prostredníctvom…
Rádioamatérstvo – v anglofonej komunite rozšírené ako hamradio – je technické hobby s viac ako storočnou tradíciou, ktoré ani v…
Moderné rádioamatérske pracovisko dnes často pozostáva z klasického KV transceivera doplneného o samostatný SDR receiver. Takáto konfigurácia umožňuje súčasné sledovanie…
Airspy R2 je softwarovo definovaný receiver (SDR) určený predovšetkým pre pásma VHF a UHF, ktorý sa od svojho uvedenia na…
SwR – Shortwave Radio je Android aplikácia českého vývojárského štúdia Kruen s.r.o. z Novej Paky, ktorá slúži ako klient pre…
The OM3KUK radio club operates a pair of web-based SDR receivers located at the Vršatec – Chmeľová location, in the grid locator JN99BB, at an altitude of…
When choosing a modern HF transceiver, a radio amateur is often faced with a number of technical parameters. Manufacturers list sensitivity, dynamic range, blocking, phase…
Software-defined radios have become an integral part of amateur radio operations in recent years. From simple RTL-SDR receivers to professional wideband…
Radio amateurs like to compare technical parameters. Datasheets look at IMD, blocking dynamic range, phase noise, ADC architecture, roofing filters, DSP...
The construction of a modern ham radio station (hamshack) has undergone a radical transformation over the past decades. While the classic tabletop transceiver (TCVR) equipped with advanced circuitry…
The modern era of amateur radio brings with it an interesting paradox. On the one hand, we have access to cutting-edge digital technologies and sophisticated software…
The summer months and storm activity bring a period of increased stress for every radio amateur. This does not mean the voltage in the power supply, but…
Automatic gain control, known as AGC (Automatic Gain Control), is one of the basic functional blocks of any quality receiver. Its task…
In amateur radio practice, we often encounter the need for effective audio path management, especially when transitioning between reception (RX) and transmission...
The question of antenna system efficiency is one of the oldest and most complex topics in amateur radio. Every operator who has ever stretched a wire between…
The amateur radio community has received a significantly improved WebSDR receiver at http://sdr.homeip.net:8901/. After six weeks of intensive modifications and upgrades, Mike stated,…