PI5RTA Helmond

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Receivers

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Software Defined Radio receivers used at RT5RTA for WebSDR

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SDR receivers for different frequencies

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Circuits for SDR receivers

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HF bandpass filter pdf-file (Dutch)

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HF Ampifier10 kHz to 70 MHz with BFW16A

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USB programmable oscillator with a SI-570

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Simple SDR converter with HF input and I/Q output suitable for a stereo pc-soundcard

A basic SDR receiver system, connected to a soundcard, only needs an SDR converter and a SI-570 programmable oscillator.

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Updated jan 2026