R REDBACK SDRDISCONNECTEDChoose a receiver
LIVE RECEIVER · RANGE UNKNOWN
Place cursor on a digit; ↑ / ↓ to tune
Select a receiver and connect. The spectrum will display real RF data only.
RF SPECTRUM— dBm1×
Ready when you are.Connect to a KiwiSDR for live spectrum & audio.
No RF dataTap to tune · drag to pan · wheel to zoom

Demodulation

Audio

Recording captures receiver PCM before browser volume, squelch and notch. Up to 10 minutes per file.

Noise blanking, noise reduction and Kiwi extensions are not exposed in this client.

Waterfall

Frequency memories

Listening with Redback SDR

Connect opens one Kiwi listening session. Start audio requires a click or tap. Receiver operator restrictions always apply.

HF receivers do not cover NOAA weather radio at 162 MHz. Preset reception depends on propagation and antenna; a frequency listing does not guarantee a signal.

A gateway session appears to the operator from this server’s public IP. Please respect operator policies and disconnect when finished.

Save memory

Current frequency, mode, passband and receiver will be saved.