Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR, Power Genius, and Tuner Genius Software?
SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.1.20 and the Tuner Genius XL Release Notes v1.1.20
SmartSDR v3.7.4 and the SmartSDR v3.7.4 Release Notes | SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.8.8 and the Power Genius XL Release Notes v3.8.8
Tuner Genius XL Utility v1.1.20 and the Tuner Genius XL Release Notes v1.1.20
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
Noise on 20m.
Eddy
Member ✭
Hi, What can be the origin of this type of noise on 20m.
This is a screenshot taken two hours after local sunset.
Left and right of the FT8 signals and up to S9 and seem to shift up an down the band.
Terrible if it gets on top of the FT8 signals.
Eddy ON5UQ.
This is a screenshot taken two hours after local sunset.
Left and right of the FT8 signals and up to S9 and seem to shift up an down the band.
Terrible if it gets on top of the FT8 signals.
Eddy ON5UQ.
0
Answers
-
Has be The Russians ****0
-
I've seen similar from a variable speed motor drive in an HVAC air handler.0
-
looks like a solar panel inverter0
-
Looks just like what I am getting in my shack. It's on more than 20 meters for me. I think it is coming from my router or modem. Need to shut down everything, put my SDRPlay on a laptop and chase it down.0
-
Does this noise repeat itself every 50 to 100 kHz? If it does, it is more than likely from some type of electronic switching device.
0 -
Thanks for your reply.
I get terrible noise from a solar panel installation in my neighbourhood but only during daylight hours.
This noise disappears as soon as it is dark but the noise of the screenshot remains all night.
Is it possbile that string inverters or optimisers on each solar panel cause this RF noise during night hours ?
Eddy ON5UQ.
0
Leave a Comment
Categories
- All Categories
- 244 Community Topics
- 2.1K New Ideas
- 481 The Flea Market
- 7.1K Software
- 5.9K SmartSDR for Windows
- 132 SmartSDR for Maestro and M models
- 331 SmartSDR for Mac
- 243 SmartSDR for iOS
- 222 SmartSDR CAT
- 162 DAX
- 348 SmartSDR API
- 8.5K Radios and Accessories
- 6.9K FLEX-6000 Signature Series
- 745 Maestro
- 41 FlexControl
- 836 FLEX Series (Legacy) Radios
- 720 Genius Products
- 387 Power Genius XL Amplifier
- 249 Tuner Genius XL
- 84 Antenna Genius
- 225 Shack Infrastructure
- 150 Networking
- 366 Remote Operation (SmartLink)
- 120 Contesting
- 580 Peripherals & Station Integration
- 114 Amateur Radio Interests
- 805 Third-Party Software