Monitor the RMS level of each IQ stream¶
The DAX IQ applet includes a real-time level meter for each of the four IQ streams. Use these meters to confirm that a stream is active and receiving signal.
Before you start¶
- AetherSDR must be connected to the radio. The DAX IQ applet requires an active radio connection.
- At least one IQ stream must be enabled. A disabled stream shows a meter value of 0.
Steps¶
- Click the IQ tray button on the right sidebar to open the DAX IQ applet.
- Locate the row for the channel you want to monitor: IQ 1, IQ 2, IQ 3, or IQ 4.
- Confirm the toggle button for that channel shows On. If it shows Off, enable the stream first — see Enable an IQ stream for external SDR software.
- Observe the level meter in the center of the row. The bar updates in real time as IQ data arrives from the radio.
What each control does¶
| Control | What it shows | Range | Notes |
|---|---|---|---|
| IQ 1–4 meter | RMS level of the IQ stream, scaled for display | 0–100 (scaled from RMS × 200) | Resets to 0 when the stream is disabled or the radio disconnects |
| IQ 1–4 Off/On | Whether this IQ stream is currently active | Off / On | Stream must be On for the meter to advance above 0 |
Tips¶
- A meter that stays at 0 on an On stream can indicate the radio has no active slice or the external software has not opened the stream yet.
- The meter resets to 0 on disconnect and on any stream that is toggled to Off.
- The meter value is a display-only indicator. It has no persisted setting key and no effect on radio configuration.
Troubleshooting¶
- Meter stays at 0 even though the stream is On — The radio resets all IQ streams per session. If you just reconnected, AetherSDR waits approximately 1.5 seconds before re-enabling persisted streams. Wait for the toggle to settle to On, then check the meter again.
- Stream toggles back to Off immediately after connecting — The radio was not ready when the enable request was sent. AetherSDR retries automatically after the session setup settles. If the button remains Off, click it manually to request the stream again.