There is a bit of a learning curve when using this SDR. I have set it up to strike a balance between simplicity and access to more advanced controls. Take your time exploring the different bands, modes, and settings. Don’t be afraid to experiment. You’re not going to break anything. If you have questions, I encourage you to ask them on the K5NWZ-SDR Discord channel. It works on mobile devices, but you will have a much better experience using a desktop computer While up to twenty users can be connected at the same time, the receiver can only tune to one signal at a time. If you notice the frequency changing unexpectedly, another user has likely taken control. There is also a built-in chat feature that allows you to communicate with other users. You can toggle the chat window on or off using the icon in the upper right corner. This SDR uses a wideband discone antenna, designed to cover a broad range of frequencies. The tradeoff is reduced sensitivity compared to antennas tuned for specific bands. Keep propagation in mind. High Frequency (HF) bands are affected by sunspot activity and ionospheric conditions. A band that is active at night may be quiet during the day, and vice versa. I would love to hear about your experience, good or bad, on the K5NWZ-SDR Discord channel. I built this to give anyone curious about radio a chance to explore and learn.