Microsoft's Windows Subsystem for Linux is coming to all Windows 10 users (archive):
You won't have to be a tester to try Windows 10's new, built-in Linux kernel in the near future. Microsoft has confirmed that Windows Subsystem for Linux 2 will be widely available when Windows 10 version 2004 arrives. You'll have to install it manually for a "few months" until an update adds automatic installs and updates, but that's a small price to pay if you want Linux and Windows to coexist in peace and harmony. It'll be easier to set up, at least -- the kernel will now be delivered through Windows Update instead of forcing you to install an entire Windows image.
Embrace, Extend... Excite!
Windows blog post.
Previously: Windows 10 Will Soon Ship with a Full, Open Source, GPLed Linux Kernel
Okay, I get it. Old Windoze tablet . . . useless. Old Apple tablet . . . it would be heresy to say useless, so I won't say it.
Old Android tablet . . .
Just make sure it runs a version of Android that supports SDR apps, and use it for SDR. Use an OTG adapter and cheapo RTL receiver.