It’s not the software, it’s the USB hardware that consumes power, regardless of whether it is active. Current laptops try and remove every single “unnecessary” use of power.
Sent from Mail for Windows 10
Update: I discovered that the 'CP210x USB to UART Bridge' had 'Allow power management' turned on. Unticked the box and Tx audio stays alive during inactivity.
I don't understand how a minor bit of software can drain power.
I'm still getting the 'no Tx audio after band change' problem - new in v2.3.0
I REALLY, REALLY hate Win10.
73 de M0PTB