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One of the most difficult tasks in radioamateur practice is the measurement of power. There are a number of solutions to this problem, starting with diode detectors, through thermal detectors on specialized integrated circuits. Each solution has its advantages and disadvantages, eg: diode detectors are characterized by high frequency of work reaching tens of GHz, simplicity of application, but their disadvantages include low linearity range, maximum 30dB (without special circuits compensating for non-linearity of diode characteristics) and sensitivity on the shape of the measured waveform. The applied AD8362 power detector circuitry is distinguished by its maximum operating frequency range of 3.5GHz and dynamics up to 60dB. The voltage increase at the output is 50mV per dB. The system works correctly in the range from 1MHz to 750MHz, the parasitic resonances of the applied elements and the asymmetrical configuration of the input are responsible for limiting the band.
Programmed layout
Detailed description EdW 12/09
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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PICC reference probe kit with probes for classes 1 to 6 allowing testing of contactless readers according to ISO 10373-6 standards
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CONTROLLER OF FOUR REFUGEES FOR CYLINDERS - PRINTED PLATES AND PROGRAMMED SYSTEM
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Flat USB cable A - micro-B USB with a length of 1 m, cable in a dark pink color
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The Marble Run Spiral Hoist is the fourth model in the Ugears collection of fascinating DIY wooden mechanical marble runs. The hoist has two types of rails to speed the ascent: the main spiral rails and vertical rails. Turn the crank to lift the colored glass marbles upwards (one marble rises per nine revolutions of the winding crank) to the three-marble storage up top. UGears 70177
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Graphical LCD display 128x64, FFSTN, LED backlight (white), extended operating temperature range, PCB 93x70mm, controller KS0108A, RoHS
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Kit for building a minisumo robot on a crawler chassis. It has a bulldozer, control board and a set of caterpillars. Robot version for self-assembly, requires additional motors and four AA batteries. Pololu 3124
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