Auxiliary monitor
See the band without stopping operating
- With an RTL-SDR receiver connected, a strip with the spectrum and the waterfall opens under the radio panel.
- You can listen to the receiver's audio while you operate.
- It is a separate receiver: your main radio keeps operating as usual.
- It is inside RadioLog: you do not need another program open.

The auxiliary monitor under the radio panel: spectrum and waterfall (simulated signal).
What it includes
In detail
Spectrum and waterfall
You see who is active on the band while you stay on your frequency.
Receiver audio
You hear what the RTL-SDR receives, without stopping operating with your radio.
Shown when you want it
Turned on and hidden from Tools → Auxiliary monitor.
Compatible receivers
RTL-SDR and compatible only. Set up in Settings → Auxiliary monitor.
Getting started
In four steps
- Connect the RTL-SDRBy USB, next to your radio.
- Settings → Auxiliary monitorChoose the receiver and the audio settings.
- Tools → Auxiliary monitorShows the strip under the radio panel.
Try it, it's free
Windows 10 and 11, 64-bit. It installs in a minute and needs no registration.
⬇ Download RadioLog v4.1.0