Troubleshooting

Troubleshooting

Start with FM Radio and one strong local station. It is the fastest way to separate a general SDR or audio problem from a specialized feature problem.

The SDR is not detected

1. Shut down or power off the Tab5.
2. Check the RTL-SDR is connected to the Tab5 USB Host port.
3. Reconnect the SDR and power on again.
4. Start with FM and check the signal display before trying a more specialized dashboard.

I can see a signal but hear no useful audio

• Confirm the mode and frequency are correct.
• Raise the header volume.
• Try a strong local FM station first.
• Open FM RF Health and look for underruns or USB overruns.
• If you need a deeper view, open RF Lab and check that the source is live before recording a short session to SD.

ADS-B is empty

• Use a 1090 MHz antenna, preferably with a clear view of the sky.
• Set your receiver location in Settings.
• Check ADS-B Stats for incoming Mode-S activity.
• Remember the demo screenshots are not proof that aircraft are currently being received.

LoRa is empty

• Confirm the region, frequency, bandwidth, and spreading factor match local traffic.
• Use an antenna for the local LoRa band.
• Start monitoring, then check LoRa RF Health.
• Empty Nodes, Traffic, or Map pages are normal until verified traffic arrives.

Before reporting a problem

Note the dashboard, frequency, antenna, what you expected, and what happened. A photo of the relevant health screen is often more useful than a description alone.