[RFI] RFI sleuthing with RTL-SDR BLOG dongle

[Dave (NK7Z)]

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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