SmartSDR v3.9.19 and the SmartSDR v3.9.19 Release Notes
SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes
The latest 4O3A Genius Product Software and Firmware
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
DPC Thumping

My Transmitter spectrum has noise pulses. I saw this sporadically with my 6600 and see this similarly with my 8600. In previous years it was explained as DPCs (Deferred Procedure Calls) and manifest as noise artifacts on the transmitted RF waterfall. See screenshot:
I previously had WIN10 i5 and i7 HO refurb desktops. I upgraded to a new WIN11 thinking this would allow me 3 monitors and 1 mouse with plenty of reserve to handle multiple windows with various tools (PSK Reporter, Slack, DXMaps, etc). Now I guess I would be better having those web tools on my old computer and the Flex apps on the new WIN11. Is there any plan to change the SSDR code so that when the Flex transmits, it blocks the web app DPCs? I now see this is becoming prevalent from other Flex radios while monitoring various FT8 frequencies.
Answers
-
You can try something like Process Lasso Pro that allows control of priority etc for apps.
0
Leave a Comment
Categories
- All Categories
- 339 Community Topics
- 2.1K New Ideas
- 607 The Flea Market
- 7.9K Software
- 6.3K SmartSDR for Windows
- 172 SmartSDR for Maestro and M models
- 405 SmartSDR for Mac
- 265 SmartSDR for iOS
- 248 SmartSDR CAT
- 186 DAX
- 372 SmartSDR API
- 9.2K Radios and Accessories
- 19 Aurora
- 196 FLEX-8000 Signature Series
- 7.1K FLEX-6000 Signature Series
- 916 Maestro
- 53 FlexControl
- 859 FLEX Series (Legacy) Radios
- 888 Genius Products
- 451 Power Genius XL Amplifier
- 321 Tuner Genius XL
- 116 Antenna Genius
- 283 Shack Infrastructure
- 199 Networking
- 442 Remote Operation (SmartLink)
- 137 Contesting
- 745 Peripherals & Station Integration
- 137 Amateur Radio Interests
- 964 Third-Party Software