SmartSDR v3.3.32 and the SmartSDR v3.3.32 Release Notes | SmartSDR v2.7.6 and the SmartSDR v2.7.6 Release Notes
SmartSDR v1.12.1 and the SmartSDR v1.12.1 Release Notes
Power Genius XL Utility v3.6.24 and the Power Genius XL Release Notes v3.6.24
Tuner Genius XL Utility v1.1.8 and the Tuner Genius XL Release Notes v1.1.8
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.
SSDR CW Timing Error
Was working QRQ CW this evening on 40m and noticed a slight timing error with my Flex 6700 running SSDR V184.108.40.206. An external keyer is used.
Using a dual trace scope to check CW timing, I noticed that the start of the CW RF waveform jitters between 6 msec. and 11 msec. Running a string of dits, the RF start point can actually be seen wandering at different points between those two extremes. Prior SSDR versions did not show this behavior. I confirmed that the key line pulse used to trigger the alternate scope trace is steady.
To be clear, this is not so-called "dit shortening," meaning the duration of the RF envelope isn't changing. The start of the RF envelope is simply bouncing around between 6 msec. and 11 msec. To the ear, it becomes much more noticeable as CW speed increases. Knowing that the SSDR CW Speed control did have an effect on key shape, even with external keying, I changed settings but the result remained the same.
To validate that an error didn't creep into my test configuration, I confirmed that two other transceivers display steady CW start times using the same external keyer.
Hopefully Flex Engineering can have a look at this and localize the root cause in the latest SSDR version when run with the Flex 6700.
Leave a Comment
- 18.5K All Categories
- 133 Community Topics
- 2K New Ideas
- 280 The Flea Market
- 6.2K Software
- 5.4K SmartSDR for Windows
- 93 SmartSDR for Maestro and M models
- 211 SmartSDR for Mac
- 188 SmartSDR for iOS
- 180 SmartSDR CAT
- 116 DAX
- 321 SmartSDR API
- 7.8K Radios and Accessories
- 6.4K FLEX-6000 Signature Series
- 631 Maestro
- 29 FlexControl
- 777 FLEX Series (Legacy) Radios
- 411 Genius Products
- 243 Power Genius XL Amplifier
- 145 Tuner Genius XL
- 23 Antenna Genius
- 119 Shack Infrastructure
- 75 Networking
- 204 Remote Operation (SmartLink)
- 91 Contesting
- 308 Peripherals & Station Integration
- 87 Amateur Radio Interests
- 584 Third-Party Software