[RFI] RFI sleuthing with RTL-SDR BLOG dongle
Dave (NK7Z)
dave at nk7z.net
Mon Dec 26 19:49:17 EST 2022
Hi,
I am using an SDRPlay, and HDSDR, and get a very clean waterfall, when
there is no noise... You may be seeing the LO... If that is the case,
the SDR may have a way to offset it, from center.
Hope that helps...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 12/26/22 15:40, n0tt1 at juno.com wrote:
> Hi Gents,
>
> I have a new "RTL-SDR BLOG" dongle that I want to use with my Android
> cellphone for huning down some RFI. It appears to working okay
> with SDRTouch software EXCEPT that some pretty strong noise
> appears on the waterfall and spectrum disspaly without any antenna
> connected to the dongle. Is that normal?
>
> I can't do any further testing (such as connecting a antenna) with
> downloading
> the license key for the software...around $11. Worth it, if it works.
>
> 73,
> Charlie, N0TT
>
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