Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR or 4O3A Genius Product Software?
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
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
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.
Raspy sidetone on 6400M
Options
Emmett
Member ✭
I am relatively new to the Flex community and am still learning the radio. I saw an answer to this question from 2018 and the response from Flex was that an update was in the works that would likely eliminate the problem. My 6400 is running v 3.2.39. Using the CW mode, I have a raspy sound on the sidetone when I key with either a paddle or straight key. It almost sounds like 60Hz but I've had no reports of A/C in my signal. What suggestions does the community have? Thanks!
0
Answers
-
Hi Emmett, depending on the powered speakers that you are using, you may be experiencing a ground loop. Try a pair of headphones in the headphone jack with the speakers unplugged. If that sounds good, then it is likely a GL.
A ground loop isolator can be bought from Amazon for around $10 USD and should clear it right up.
Another possibility is RF getting into the speakers and/or radio. Try with breakin turned off. If you still have the problem, then it is probably a ground loop. If that clears it up, then you will want to put some ferrites on the cabling to the radio. The ground loop isolator can sometimes help with RFI as well.
0
Leave a Comment
Categories
- All Categories
- 328 Community Topics
- 2.1K New Ideas
- 594 The Flea Market
- 7.8K Software
- 6.2K SmartSDR for Windows
- 168 SmartSDR for Maestro and M models
- 396 SmartSDR for Mac
- 260 SmartSDR for iOS
- 246 SmartSDR CAT
- 179 DAX
- 369 SmartSDR API
- 9.1K Radios and Accessories
- 15 Aurora
- 161 FLEX-8000 Signature Series
- 7.1K FLEX-6000 Signature Series
- 909 Maestro
- 51 FlexControl
- 854 FLEX Series (Legacy) Radios
- 873 Genius Products
- 446 Power Genius XL Amplifier
- 312 Tuner Genius XL
- 115 Antenna Genius
- 278 Shack Infrastructure
- 196 Networking
- 439 Remote Operation (SmartLink)
- 135 Contesting
- 724 Peripherals & Station Integration
- 136 Amateur Radio Interests
- 944 Third-Party Software