Maybe you're not aware...but I am having helped at least one Flex user who was 
generating noise.  You can still trigger the ALC on a Flex radio (or any other 
SDR) with too much audio for the power setting.

de Mike W9MDB




 

    On Thursday, August 2, 2018, 2:27:04 AM CDT, David Fisher 
<dsfis...@outlook.com> wrote:  
 
 
Flex radio users routinely do not use “Fake It” mode, as the TX audio signal 
never exists in analog form from the point where it created by WSJT-X until the 
RF signal is synthesized.  I’m not aware of any cases of audio harmonics 
appearing in Flex generated FT8/JT65/JT9 signals.  I run with a 4K wide RX and 
TX passband in DIGU mode, which bypasses all audio signal processing.

  
 
Dave / NX6D

  
 
  
 From: Carey Fisher <careyfis...@gmail.com>
Sent: Wednesday, August 1, 2018 8:29:05 PM
To: WSJT software development
Subject: Re: [wsjt-devel] A strange signal seen on the air Well, duh...
On Wed, Aug 1, 2018 at 7:45 PM, G8DQX (WSJT developers on 
SF)<wsjtde...@gape.me.uk> wrote:


When the TX is not employing CAT control of frequency, for starters.

Robin


On 01/08/18 18:55, Carey Fisher wrote:

Name 1.
On Wed, Aug 1, 2018 at 1:35 PM, Black Michael via 
wsjt-devel<wsjt-devel@lists.sourceforge. net> wrote:

Because there are too many situations where it doesn't work.
de Mike W9MDB



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