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rtl_sdr:tldr:e3232
The command you provided is using the "rtl_sdr" software-defined radio tool with a combination of arguments. Let's break it down:
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"rtl_sdr": This is the name of the command or program that you are executing. It is used for interacting with RTL-SDR (Software Defined Radio) receivers.
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"-f ${100000000}": This argument specifies the frequency to tune the RTL-SDR receiver to. In this case, the frequency value is set to "100000000" (which represents 100 MHz). The actual value might vary depending on your specific needs.
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"-d ${0}": This argument selects the device index of the RTL-SDR receiver to use if you have multiple connected. Here, the device index is set to "0". In most cases, "0" refers to the first connected RTL-SDR device. If you have multiple devices, you may need to adjust this value accordingly.
The command you provided seems to be incomplete as it ends with a hyphen and does not include any further instructions or options.