I didn't need to find a USB extension as the USB cable that came with this little was plenty long enough to reach from the back of my Linux PC all the way around to the front and still have a couple of feet left.
SO....I plugged it in, ran dmesg, and was reqward with the following:
[17442.607014] usb 1-1.6: new high-speed USB device number 4 using ehci-pci
[17442.700026] usb 1-1.6: New USB device found, idVendor=1d50, idProduct=60a1
[17442.700040] usb 1-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[17442.700042] usb 1-1.6: Product: AIRSPY
[17442.700044] usb 1-1.6: Manufacturer: www.airspy.com
[17442.700045] usb 1-1.6: SerialNumber: AIRSPY SN:573064DC314023C1
[17443.788553] Linux video capture interface: v2.00
[17443.818345] airspy 1-1.6:1.0: Board ID: 00
[17443.818350] airspy 1-1.6:1.0: Firmware version: AirSpy NOS v1.0.0-rc10-0-g946184a 2016-09-19
[17443.819047] airspy 1-1.6:1.0: Registered as swradio0
[17443.819050] airspy 1-1.6:1.0: SDR API is still slightly experimental and functionality changes may follow
[17443.819079] usbcore: registered new interface driver airspy
This tells me it discovered a new USB device, queried it, and the device responded with it's ID, and the revisions, including what firmware is loaded into it. Very nice!
Then I started GQrx, selected "AIRSPY" from the choices, and brought up KLOS, 95.5MHz.
After that check, I tuned it to 162.550MHz for NOAA Weather Radio, and set up the filters and gain settings appropriate to listening to narrow FM voice.
It's been sitting like that for about an hour now, and there's been NO "break through" from strong local transmitters, and no funny images or spurs appearing in the panadaptor/waterfall display.
This is quite a bit better than any of the USB dongles I've tried, and I suspect it would be quite a bit better than the SDRplay receiver I have, although I gave up trying to make that radio work with Gqrx.
I haven't tried it with Linrad yet, but I'm sure it will work just fine.
And I suppose I'll try the GNURadio Companion program again, but it's pretty obtuse to use, and assumes you know a whole lot about exactly what you want to do with your hardware, and also understand the hardware extremely well.
So far, this little receiver looks like a real winner!