Sample

Efficient way to get power levels from an SDR (RTL-SDR specifically)

Efficient way to get power levels from an SDR (RTL-SDR specifically)
  1. What is sample rate in SDR?
  2. What antenna to use with RTL-SDR?
  3. What is RTL power?
  4. Can RTL-SDR transmit?

What is sample rate in SDR?

For SDRs, think radio waves in then numbers out. . We call this the sample rate, and its the inverse of the sample period. For example, if we have a sample rate of 10 Hz, then the sample period is 0.1 seconds; there will be 0.1 seconds between each sample.

What antenna to use with RTL-SDR?

The Discone antenna is remarkable in that it is capable of receiving and transmitting over a wide range of frequencies with good matching. Because of this, it is a good match for SDR receivers such as the popular RTL-SDR sticks.

What is RTL power?

Rtl_power is a command line tool for logging wide band frequency power scans to a CSV file. The CSV files can then be used for analysis or to create a large frequency plot image.

Can RTL-SDR transmit?

The downsides of the RTL-SDR is that it can't transmit and that the tuner range usually stops before the commonly used 2.4GHz band.

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