Receiving up to 4.5 GHz with an RTL-SDR and a $5 Directv Downconverter – rtl-sdr.com

KD0CQ has recently been experimenting with trying to receive signals at frequencies of up to 4.5 GHz with an RTL-SDR and downconverter. Since a typical R820T/2 RTL-SDR’s maximum frequency limit is about 1.7 GHz, an external downconverter circuit is required. A downconverter converts high frequencies down into the range receivable by the RTL-SDR. For example a downconverter…

Source: Receiving up to 4.5 GHz with an RTL-SDR and a $5 Directv Downconverter – rtl-sdr.com

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