Эффект от использования феррита на DVB-TV тюнере RTL SDR Direct Sampling Mode: Effect of Ferrite on Longwire Antenna

The first few seconds shows before the ferrite, and the last few seconds shows after the ferrite. By simply placing a ferrite on the wire directly soldered to the RTL2832 chip, broadcast FM interference can be filtered out when in direct sampling mode for HF. The ferrite acts as a simple low pass filter. Removing the coupling capacitors between the RTL2832 and E4000 chips is reported to help as well, but I saw a negligible difference in performance with the capacitors removed. RTL SDR i