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  • 12/03/2021

    A HILAND DDS időben megérkezett csomagolás, alkatrészszám rendben. Következik összeszerelés, tesz

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  • 29/11/2020

    Liked prices very good will ride weekend

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  • 17/09/2016

    Good quality signal generator in mid freq range. The lower freq level signal waves are ok, but in high freq ranges (8MHz) the signals are distorted. Easy to build with good quality components. All part are "hole-mounted", no need of high level soldering tools and skills. Buildind time is around 30 mins.

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  • 10/01/2016

    Score: 5/5. After a lengthy wait, partially because of the holidays, the package arrived in an excellent condition, with no missing parts. There are no instructions, but the PCB markings are clear enough so they are not necessary. The generator uses an ATmega16A microcontroller with a 8 bit DAC in a ladder topology connected to a LM358 operational amplifier, and allows frequencies in a range between 1Hz and 65535Hz, with a "High Speed" mode from 1MHz to 8MHz. All resistors are of the 1% tolerance variety. It also necessitates a +/- 12V power supply, but also works, albeit with a limited amplitude range, connecting those leads respectively to +5V and GND.

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  • 09/02/2018

    Отличній КИТ набор. Заработал сразу после сборки. Максимальнвя частота 65500Hz, дальше уже MHz. Требуется питание +12V, -12V и +5V.

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  • 06/04/2019

    It was easy to build and It is working fine. But the display has some scratches on the inner surface. I will have to replace it. Luckily, it is a standard Arduino display.

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  • 17/04/2018

    The kit was assembled easily.. In one hour I had the circuit working without problems, but I think that some previous experience is required. I need some more time to explore the operation of the unit, which came without any operation manual. At this price there is no better choice for a DDS generator. A notice: it is not possible to change the frequency or the waveform if the output is on: you must switch it off, then change frequency and/or wave tipe, the on again. This is annoying...

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  • 22/06/2017

    Frequenz Generator Kit Einfach zusammen zu bauen bzw. zu loeten. Pcb ist gut beschriftet und lässt sich gute loeten. Funktioniert sofort tolle Funktionen. Guter Preis gute Qualität Kann ich nur empfehlen!

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  • 18/02/2017

    Very simple DDS.Quality is ok but construction is completely illogic e.g. - it requires -12, +12 and +5V supply - the board should at least contain 5V LDO for less connections. - design, when first goes offset and then gain is complete nonsense. In reverse way (first gain, the offset) it is much easier to adjust DC and AC amplitudes.

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  • 15/04/2016

    Pros: Good kit and easy to assemble. Great soldering practice. Cons: My kit had defective LM358P (short between Vcc and GND see photo). Needs external power supply (PC PSU works)

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