[Elecraft] KX3 + iMic Sound Card = Wild Scan

Dave B g8kbvdave at googlemail.com
Thu Jan 8 07:25:49 EST 2015


Use a 4 pole jack plug too helps.

Tip, Ring, Ring, Sleve.

They are relatively easy to obtain.

You may also (probably will) need a resistive atenuator, and maybe a DC 
blocking cap between the iMic's line out, and the KX3's Mic input.   Or setting 
levels "gets tricky!"

For receive, there are other issues, using the Phones jack, mutes the rig's 
speaker.

Using the I/Q output, is another way, but I've had poor results with that.   I 
ended up making a cable that had a floating jack socket, to connect a small 
speaker or 'phones to, while using digimodes, that in turn connects to the Phone 
socket on the rig.

For Fldigi use, set the rig into USB and DATA A mode (turns off any/all TX/RX 
equalisation, but keeps the settings you have for voice modes.)

Set the rig's filters so that it passes just about everything between 100 and 
3000Hz to the iMic.  Let Fldigi do all the heavy lifting.

Use USB for ALL Fldigi work, even if you are working on the "low bands".   If you 
need to swap tones (for some RTTY needs) use Fldigi's "Rev" button (lower 
right.)

If you have the USB<>KX3 serial lead, try using the K3 driver XML file 
(download from the Fldigi XML archives page  
http://www.w1hkj.com/xmlarchives.html)

Or try using Flrig also set to use a K3.   Hamlib results vary!

Then the frequency values in Fldigi follow what the rig is doing, much easier to 
use that way.

(The RIGCAT XML route is my preference, edited so that JUST the tuning and 
frequency data passes back/forth, I prefer to manipulate the radio's other 
settings by  mk1 fingers at this time.)

Note, the KX3 and K3 use a CAT protocol that is very similar to that used by 
Kenwood.   There is a lot you can do with it, but there are some significant 
differences!

Enjoy!

73.

Dave.  G0WBX.



> David,
> 
> Set MIC BTN to OFF
> 
> That should fix it I think.
> 
> 73
> 
> David Anderson GM4JJJ 
> 
> > On 7 Jan 2015, at 02:53, David Ahrendts <davidahrendts at me.com>
> > wrote:
> > 
> > Strange one. Trying to make audio in and out connections with my Mac
> > Mini and
> my KX3 Line for use with cocoaModem and FLDigi. Mac Mini ?sees" the
> Mic, and responds to the RX I/Q stream from the PX3. BUT, when I
> connect the iMic to the KX3 MIC port, it sends the KX3 into a scan
> frequency mode. What am I doing wrong? > > David Ahrendts, KC0XT, LA >
> 




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