RTL-SDR FM Receiver: Difference between revisions
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Add the Soapy RTLSDR Source block to the flowgraph. Soapy [https://github.com/pothosware/SoapySDR] is a SDR support library which interfaces with different SDR hardware. | Add the Soapy RTLSDR Source block to the flowgraph. Soapy [https://github.com/pothosware/SoapySDR] is a SDR support library which interfaces with different SDR hardware. | ||
[[File:RTL_SDR_FM_add_rtlsdr_block.png]] | |||
The receiver needs to be configured with a proper sampling rate, center frequency and gain value. The RTL-SDR supports multiple sampling rates but in this tutorial the maximum sampling rate of 2.048 MHz is chosen. Update the samp_rate variable with the value 2048000: | |||
[[File:RTL_SDR_FM_set_samp_rate.png]] | |||
Revision as of 16:00, 18 May 2024
RTL-SDR Based FM Receiver
This tutorial describes how to receive broadcast commercial radio stations transmitting Frequency Modulated (FM) signals using the RTL-SDR receiver. The following hardware is needed for this tutorial:
- RTL-SDR Receiver
- VHF Antenna
Please connect the antenna to the RTL-SDR, and plug the RTL-SDR into the USB port on your computer.
Configuring the RTL-SDR Properties
Add the Soapy RTLSDR Source block to the flowgraph. Soapy [1] is a SDR support library which interfaces with different SDR hardware.
The receiver needs to be configured with a proper sampling rate, center frequency and gain value. The RTL-SDR supports multiple sampling rates but in this tutorial the maximum sampling rate of 2.048 MHz is chosen. Update the samp_rate variable with the value 2048000:
