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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 with a 2.4 GHz local oscillator would convert a 3.5 GHz signal down to 1.1 GHz, which can be easily received by an RTL-SDR….MORE
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Hosts: Bob Heil (K9EID), Gordon West (WB6NOA), George Thomas (W5JDX), Don Wilbanks (AE5DW), Dale Puckett (K0HYD) and Amanda Alden (K1DDN) Guest: Christian Cudnik (KD0STH) New Ham Christian Cudnik, building a field strength meter, iOS apps f... Read more
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