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@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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