[Elecraft] KX3 settings for digital and other modes

[Walter Underwood]

For phone, follow the “Basic Voice-Mode Setup” in the KX3 manual (page 15). There are some additional settings collected from this list for TX EQ and compression, I put together a blog post with those.

https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/

DATA A mode automatically disables TX EQ, RX EQ, and compression. If that video suggests using USB and disabling EQ, I wouldn’t trust it, because it is giving wrong advice. Use the "DATA A and AFSK A (Audio Data Modes)" instructions in the KX3 manual instead (page 18).

Also, I’m not sure I see the benefit of turning AGC off for digital modes. The radio has better information about signal strength than an audio codec can have.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Apr 24, 2018, at 1:02 PM, Frank O'Donnell <vfo77 at inkbox.net> wrote:
> 
> Hi all, new ham here and a KX3 owner for three weeks. In the time I've had the radio, I've used it exclusively for FT8. The first thing I did was to set it up for digital modes using settings from a YouTube video by K5ACL. Specifically:
> 
> 
> AGC MD: off (default is on)
> 
> Mike bias: off (default is on)
> 
> RS232: Set to desired baud rate. KX3 supports max 38400 baud
> 
> RX EQ: off
> 
> TX EQ: off
> 
> TX GAIN: ALC 25 (this is the default)
> 
> Mode: USB
> 
> 
> This all worked fine. Not long thereafter II changed from setting the KX3 mode to USB, and have been using the Data mode instead.
> 
> Now I'm looking at expanding use of the radio to CW and perhaps to voice. I therefore wanted to revisit the settings to make sure I understand them all, and know which are important.
> 
> Some questions:
> 
> 1) Do all of the above seem important for digital modes such as FT8? I believe I read somewhere that when the KX3 is put into Data mode it will make some of these changes anyway. Are there any I don't need to worry about as long as I select Data mode for FT8 and other digital sessions?
> 
> 2) Should I change any of the above settings for CW?
> 
> 3) Should I change any of the above settings for phone? Wondering for example about the mike bias and EQ.
> 
> Thanks for any possible help,
> 
> Frank K6FOD
> 
> 
> 
> 
> 
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