Welcome to RHR's Knowledge Base
Current Supported Version of SmartSDR: 4.1.5
RHR Knowledge Base
Troubleshooting
Last updated on 23 Oct, 2025
Microphone Problems
Most microphone issues come down to permission in the operating system or browser.
WebDX connection troubleshooting
High CPU and stuttering audio on Flex stations
Troubleshooting serial devices in the desktop app on macOS
Extended Panadapter (Can’t see VFO controls)
