Running Two separate SDRplay RSPduo Devices in SDRuno

You actually have two completely separate RSPduo units, and you want to see both running in SDRuno simultaneously. 👍

Here’s how you can set that up:

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🖥️ Running Two RSPduo Devices in SDRuno

1. Connect Both RSPduos

• Plug both RSPduo units into USB ports.
• Connect their antennas as you wish.
• The SDRplay API will recognize them as separate devices.

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2. Launch the First SDRuno Instance

• Open SDRuno.
• In the Main Panel → OPT → Select Input, choose RSPduo #1 (it should be listed with its serial number).
• Configure as usual (single tuner, dual tuner, etc.).

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3. Launch the Second SDRuno Instance

• Open another copy of SDRuno (just start it again from the desktop or Start menu).
• In this second instance, go to OPT → Select Input.
• This time select RSPduo #2 (the other unit).
• Now each SDRuno session is bound to a separate device.

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4. Arrange Windows

• You’ll now have two full SDRuno workspaces running — one for each RSPduo.
• Arrange them side-by-side so you can watch both spectra/waterfalls at once.

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5. Keep in Mind

• ✅ Each SDRuno instance is completely independent (tuning, gain, bandwidth, recording).
• ✅ Each can be recording I/Q or audio separately.
• ⚠️ CPU load will increase significantly when running two full SDRuno instances. A modern multi-core machine is recommended.
• ⚠️ Make sure both devices have unique serial numbers (they usually do from factory). If not, they can be reprogrammed using SDRplay’s utility, otherwise SDRuno may confuse them.

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Because SDRuno itself doesn’t let you mix multiple hardware devices into a single workspace — but two instances gives you that functionality.