Setting up my first RemoteHams SDR station using an Adalm Pluto and Raspberry Pi 4. SDR like the Pluto requires 1.4M samples/s × 2 bytes × 2 channels = 5.6MB/s for RX plus same for TX, which gives over 10MB/s. With Remote SDR, ethernet output needs only 10k samples/s × 2 bytes for audio RX, 10.24k samples/s × 2 bytes for spectrum, and 10k samples/s × 2 bytes for TX audio - less than 100kB/s total with control data, roughly 100x reduction in communication speed required. Anyone have experience with optimal bandwidth settings for smooth operation?

I've been running a similar setup for QO-100 operations. The first application was duplex control of a station allowing links to the geostationary satellite QO-100/Es'Hail 2. Key is having good ethernet or WiFi connection - even small dropouts will cause audio artifacts. Monitor your ping times consistently.

Don't forget to use Chrome, Edge or Chromium web browser. Don't use Firefox. Had issues with Firefox dropping audio randomly. Also make sure you have enough processing power on the Pi - temperature throttling will kill your stream quality.

What frequency range are you targeting? In degraded mode, it's possible to extend reception in the 0.5MHz-30MHz band with an RTL-SDR V3. I added one for HF coverage below the Pluto's range and it works great for general coverage monitoring.