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Anyone can become a short-wave player after passing the appropriate exam, but first he should get acquainted with this hobby to assess whether this topic really interests her. Polish radio players can usually be heard in the 80 and 40m ranges. The farthest stations (already rarely Polish-speaking) will be heard in the 20m range. It is worth building a multi-band HF listening receiver, because depending on the time of the day and the year, as well as variable propagation conditions, we will not always hear something, having access to only one band.
The system is characterized by good electrical parameters and a small number of required external components. Receiver STAS, works in a classic superheterodyne system with a single frequency transformation from ff. 4.43MHz. The device uses two popular MC3362 and LM386 integrated circuits. The number of elements, including LC circuits, has been limited to the necessary minimum.
Project AVT 3230 EdW 08/18
Manufacturer AVT SPV Sp. z o.o. Leszczynowa 11 03-197 Warszawa Poland zamowienia@avt.pl
Responsible person AVT SPV Sp. z o.o. Leszczynowa 11 03-197 Warszawa Poland zamowienia@avt.pl
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UNIVERSAL AVR MICRO CONTROLLER PROGRAMMER - PRINTED PLATE AND PROGRAMMED SYSTEM
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Next up in the exciting new line of Ugears 2.5D puzzles, Classic Vehicles collection, we present the Zeppelin—the world\'s first commercial aircraft! Inspired by German airships from the early 20th Century, and named after German inventor Count Ferdinand von Zeppelin, this DIY 2.5D wooden airship model has movable elements and comes in its own frame, suitable for hanging on a wall or placing on a desk or shelf. UGears 70208
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Velleman kit for self-assembly of an ultrasonic bats detector. K8118
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Module with a black and white e-Paper display with a diagonal of 2.9" and a resolution of 296x128 px. Dedicated for Raspberry Pi Pico and Pico W. Pimoroni PIM634
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SUPERLUMISING MODULAR LIGHT 9XLED WHITE HEAT WARM 20mA - SELF-MOUNTING KIT
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Printed circuit board of a four-band STAŚ receiver. Receiver CW / SSB beginacz nasłuchowca (80/40/30 / 20m). AVT3230 A