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Escuta AbertaRadio listening laboratory
--:-- UTC · --:-- BRT

Radio workbench · simulation and real data

Radio workbench: sit down and tune in

A fake radio with real information. Choose the band and turn the knob: the waterfall display shows what you usually see there at this time, based on current real world propagation. When you find something interesting, open someone else's open receiver already on that frequency and listen for real.

You operate from The position is calculated right here, rounded to 0.1°, and never leaves the browser.

Radio panel

Turn the knob, drag the display or use the keyboard arrows.

20 mUSB
14.074,000kHz
step 100 HzUTC
Mode
Step
Bands
Shortcuts
Memories

Spectrum and waterfall display simulation

What you usually see here at this time. This is not a real received signal.

noisestrong signalTap to tune, drag sideways to scroll.

View in table
Frequency (kHz)What it isSimulated strength
Hiss and synthesized tones in your browser. No real audio.

Listening logbook

Note down what you heard. It stays only in this browser: nothing is sent anywhere.

Now…

The ADIF entry is marked as listening (SWL), not as a contact. Tap a frequency from the list to tune in again. If you clear your browser data, the logbook goes with it: export from time to time.

Listen for real

Open receivers covering this frequency, already tuned.

Lendo a lista de receptores...

This band now

Real data: N0NBH, NOAA and WSPR.

Lendo...

Gray line

The shadow of night now. Updates automatically every minute.

your city Bright sun night

What is here

What this part of the dial is for.

Data: receptores.json, sol.json, clima-espacial.json and wspr.json. Sources: N0NBH (hamqsl.com, used with credit), NOAA Space Weather Prediction Center and WSPRnet via wspr.live (non-commercial use). The waterfall display, S-meter and audio are an educational simulation made in your browser: no signal shown here was actually received. The receivers are third-party, with no affiliation to this laboratory.