When I first tried the digital modes with my KX3 I had mixed results. When the 
laptop was plugged in it would not work with any setting on the computer I KX3. 
Once I added isolation & attenuation between it was a snap to adjust and get 
working. It is best to start with the receiving portion using something like 
multiPSK to decode multiple signals. After getting one direction going adjust 
the transmit per Elecraft's directions. 

John Hendricks K7JLT

On Jul 17, 2013, at 17:32, Don Wilhelm <w3...@embarqmail.com> wrote:

> Dave,
> 
> It sounds like you are being frustrated by all the choices available.  If you 
> want to end up with Fldigi, I suggest you start with that application.  It is 
> multi-platform and will work the same on a PC or a Mac.
> 
> The first thing you need to get a grasp on is the audio levels involved. That 
> does require you to have some familiarity with the PC or Mac that you are 
> using and its soundcard input/output levels.
> 
> Usually, one takes the computer audio output from the Line out jack (the 
> green one).  That will be fed to the KX3 MIC input, but the level is about 
> 100 times too high, so an attenuator is needed. Usually a 100 K resistor in 
> series with the Line out signal and a 10k resistor on the KX3 side will do 
> the job.
> 
> On the other direction, the KX3 headphone output will provide the audio to 
> the computer.  This will be fed to the computer Line In or lacking that the 
> Mic Input.  Again an attenuator will be required. If you are using the 
> computer Line In level, a 10k resistor in series with the KX33 headphone 
> output and a 10k resistor across the line on the computer side will do 
> nicely, but if you are using the computer mic input, the series resistor 
> should be increased to 10k.
> 
> If you are dealing with stereo inputs and outputs on the computer, the normal 
> applications will only use the left channel which is the connection to the 
> tip of the soundcard jack.
> 
> That should get you started.  As far as Fldigi is concerned, I would suggest 
> using RigCAT and selecting the K3 as the rig in the pulldown menu.  Use PTT 
> thru RigCAT and it should work.
> 
> 73,
> Don W3FPR
> 
> On 7/17/2013 6:10 PM, Esquer Dave wrote:
>> Hi folks,
>> HF Newbie frustrated with PSK-31 setup on my new KX3. I have tried 
>> everything with no joy. I need an ELMER! I've tried so many permutations 
>> that all of my hair has fallen out!
>> 
>> I have PC and Mac laptops, Digipan 2.0, Fldigi, PSKer (for iPad) and am 
>> missing ALL of the basic setup knowledge to get this stuff working. I've 
>> played all the Youtube videos too, especially KD0BIK's, but I'm still stuck 
>> in the basic hardware and software setup.
>> 
>> I would like to first try PC Digipan, but am open to anything.
>> 
>> Somewhere, there must be a simple step-by-step setup recipe to interface the 
>> KX3, its microphone and headphone cables and the mic input, headphone output 
>> from the computer. I also have a Griffin iMic that I've attempted to throw 
>> into the mix, again with no joy.
>> 
>> I've read the Data Modes section in the manual and Chapter 7 Digital Modes 
>> of the Fred Cady book. They just add to my confusion.
>> 
>> Looking at the Fred Cady book, Figure 7.4 and 7.5 and Chapter 7 sections 7.4 
>> (107-108) and 7.7 (121-122), ALL remain a mystery to me, which hookup do I 
>> use?
>> 
>> My assumptions so far:
>> Low power, 5 watts or less
>> I need to put the KX3 into Data A mode, not PSK-D
>> I can interface the KX3 to the computer without the iMic or other external 
>> sound card (figure 7.5 of Fred's book)? (Should/how/why do I use the iMic?)
>> I need to set the MIC BTN to OFF
>> 
>> I would eventually like to end up with PSK31 working on my Mac (with 
>> Fldigi), but I'd like to get it working on the PC laptop first to help me 
>> understand all of its nuances.
>> 
>> Arghhh … please help a newbie!
>> 73,
>> Dave, K6WDE
>> dave.esq...@gmail.com
>> 
>> 
>> 
>> 
>> 
>> 
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