Russian submarine commander Stanislav Rzhitsky was shot dead while jogging in the southern city of Krasnodar, and Russian media suggested he may have been tracked using the Strava running app. Russia’
Very Low Frequency (VLF) signals range from 3 kHz to 30 kHz and are utilized for various communication and navigation purposes. Notable VLF stations include:
1. **Beta**: A Russian time signal servic