RTLSDR Scanner (usb_open error -12)

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arlinsandbulte
Posts: 1
Joined: Fri Sep 20, 2019 12:02 am

RTLSDR Scanner (usb_open error -12)

Post by arlinsandbulte » Fri Sep 20, 2019 12:15 am

I got this dongle to try out rf scanning to find clear channels for wireless mics.
https://www.amazon.com/dp/B011HVUEME/re ... b00457d4c1

I am trying to use RTLSDR Scanner (https://eartoearoak.com/software/rtlsdr-scanner) to scan a range of TV-band frequencies as spelled out here: https://dbbaudio.com/2016/inexpensive-r ... analyzers/

BUT, RTLSDR scanner gives me an error: "usb_open error -12"
Any idea what my problem is and how to fix it?

SDR# seems to work OK.

Thanks,
RTLSDR Scanner.JPG
RTLSDR Scanner.JPG (126.66 KiB) Viewed 224 times

rtlsdrblog
Site Admin
Posts: 2330
Joined: Mon Nov 19, 2012 11:54 pm

Re: RTLSDR Scanner (usb_open error -12)

Post by rtlsdrblog » Sat Sep 21, 2019 9:21 am

Make sure that you've closed SDR# first or it will stop RTL-SDR Scanner from being able to open the dongle.

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