Video of busy 70 cm ISM band due to car key fobs
Sverre Holm, LA3ZA, is a regular contributor to AmateurRadio.com and writes from Norway. Contact him at [email protected].
The audio in particular should make it clear how busy the frequencies around 433.92 MHz are:
Data recorded from an RTL-SDR USB dongle with the SDR# program using the Apowersoft Free Online Screen Recorder.
- “Car keys in the 70 cm band” (with more documentation of hardware and software)
- “Not so busy 70 cm ISM band”