When FLDIGI rig control is “XML-RPC” the mode select drop down box under 
frequency is disabled. In that rig control mode Data A which is USB needs to be 
use.  I did not realize until I just checked FLDIGI that it is only disabled in 
that rig control mode. 
Ray 

Sent from my iPad

> On Apr 5, 2019, at 16:59, Don Wilhelm <donw...@embarqmail.com> wrote:
> 
> Ray and all,
> 
> The K3/K3S/KX3/KX2 has a DATA submode AFSK A which is LSB (unless you change 
> it) and also has special filters for RTTY - you have to set the mark 
> frequency in the menu to match your software (or the other way around).
> Using the DATA submodes rather than SSB automatically sets the compression to 
> zero and the TX and RX EQ to flat.  That allows you to switch to DATA modes 
> without disturbing whatever compression and EQ settings you have set for SSB.
> 
> Read the Elecraft manuals for more information.
> 
> So if you set the K3 to AFSK A, you are placing the K3 in USB mode and 
> complying with the FLDIGI instructions that you read.
> 
> FLDIGI instructions do not consider the features available on the K3 because 
> they are written for the lowest common denominator and apply to transceivers 
> that do not have specific DATA modes.
> 
> As a side note, for non-RTTY soundcard data modes, use K3 DATA submode DATA A 
> rather than SSB USB.
> 
> 73,
> Don W3FPR
> 
>> On 4/5/2019 4:31 PM, Raymond wrote:
>> That option is not available or I would. The drop down box is blank. The 
>> instructions I read say use RTTY and have the radio in LSB.
>> Ray
>> Sent from my iPhone
>>> On Apr 5, 2019, at 3:17 PM, Christopher Hoover <c...@murgatroid.com> wrote:
>>> 
>>> Use PKTUSB with fldigi digital modes.  This is covered in the fldigi docs.
>>> 
>>> 73 de AI6KG
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