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Old 6-Sep-2020, 12:34 AM   #3
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,736
Quote:
Originally Posted by eclipsme View Post
I have also downloaded and installed rtlsdr scanner which displays a snapshot of a range of frequencies.

So, I have been scanning the TV spectrum using my DB8e antenna on my roof. Can anybody help identify what is happening in the following 3 scans?
The gain setting is too low. You must increase the gain until the noise floor just starts to rise, and then stop there.









Attached Images
File Type: jpg RTLSDR Scanner Screen2_1.jpg (73.5 KB, 558 views)
File Type: jpg RTLSDR Scanner Screen1_1.jpg (98.9 KB, 562 views)
File Type: jpg VHF-High Scan Gain 25.4 dB6.jpg (144.3 KB, 552 views)
File Type: jpg VHF-High Scan Gain 48 dB5.jpg (125.3 KB, 558 views)
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Last edited by rabbit73; 6-Sep-2020 at 1:23 AM.
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