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, Tuner Genius and Antenna Genius Software?
SmartSDR v3.8.19 and the SmartSDR v3.8.19 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 v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
SmartSDR v3.8.19 and the SmartSDR v3.8.19 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 v1.2.11 and the Tuner Genius XL Release Notes v1.2.11
Antenna Genius Utility v4.1.8
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.
Spontaneous Mode Change in FT8
Bill
Member ✭✭
I am running a Flex 6400, SmartSDR 2.4.9, WSJT-X 2.01 and JTAlert 2.12.1. No additional control software loaded, although I do use HRD logbook running without the HRD control module. Lots of contacts on FT8, but I continue to have spontaneous mode changes from DIGU => USB. The net impact of this change is likely minimal, probably the last .300 khz of band pass, but I don't understand why this continues to happen. There are some much older posts regarding this, but none seem to apply to me. Is anyone else experiencing this phenomenon, or understand why the SDR mode will not stay where it is set (with no change in band) using WSJT-X?
0
Answers
-
Are you running with “None”, “Fakeit” or “Split”? I suppose it would be possible that if you were using “Split”, the switch to a second VFO/Slice by wsjt-x could be triggering the change. What happens if you force “None”, or “Fakeit” (that is assumeing you are not already doing that)?0
-
This is a WSJT configuration issue. If the radio changes modes, then something commanded it to change modes externally.
This is one of my setups. Make sure you have Mode set to None.
Mike va3mw
1 -
Can someone explain what is "fake it"1
-
“None” means leave the frequency alone and just send the audio tone. “Fake it” means adjust the VFO frequency AND the tone so that the resulting signal is in the middle or “sweet spot” of the passband, preventing transmission of nasty harmonics of the audio signal. “Split” means do what “Fake it” does, except use a second VFO / Slice, instead of adjusting the frequency of the VFO in use. In all cases but “None”, wsjt-x sends CAT commands to the radio to adjust it.1
-
Mike,
You nailed it! Mode in WSJT-X was indeed set to USB, so the 6400 was just doing what it was told to do!
Problem solved....
Thanks and 73s
0 -
Bill,
What are you using for rig in WSJT-X?
All,
1) There should be no reason to use anything but 'None' with Flex.. The total digital audio stream does not generate audio harmonics and the TX passband is flat, and thus no need for keeping the TX tones in the 'sweet spot'.
2) The bug in WSJT that effected the 'Flex 6xxx' interface was fixed in WSJT V2.0.1 and has been very reliable. However you may need to use the Kenwood TS-2000 rig type is you're running CAT through Smartlink.
3) I prefer to use PTT via CAT for PTT method. PTT via RTS has no advantage when using virtual serial ports ( the data is never converted to a serial stream with virtual serial ports and thus there is no serialization delay ).
AL, K0VM
0
Leave a Comment
Categories
- All Categories
- 283 Community Topics
- 2.1K New Ideas
- 526 The Flea Market
- 7.5K Software
- 6K SmartSDR for Windows
- 145 SmartSDR for Maestro and M models
- 352 SmartSDR for Mac
- 249 SmartSDR for iOS
- 228 SmartSDR CAT
- 169 DAX
- 352 SmartSDR API
- 8.7K Radios and Accessories
- 7K FLEX-6000 Signature Series
- 6 FLEX-8000 Signature Series
- 840 Maestro
- 43 FlexControl
- 845 FLEX Series (Legacy) Radios
- 788 Genius Products
- 414 Power Genius XL Amplifier
- 274 Tuner Genius XL
- 100 Antenna Genius
- 242 Shack Infrastructure
- 166 Networking
- 403 Remote Operation (SmartLink)
- 127 Contesting
- 624 Peripherals & Station Integration
- 125 Amateur Radio Interests
- 860 Third-Party Software