[Elecraft] [KX3] KX3 - easiest way to panadapt?

Gary Hawkins gary at hawkins-zhu.com
Sat Oct 17 14:48:52 EDT 2015


Hi Ed,

I use HDSDR V2.7 as my panadaptor.  I take the KX3 I/Q output and feed 
this via a ground loop isolator to the soundcard on my i7 computer.  
Except for a residual peak around 0Hz it works great. I'm able to see 
plus/minus 22KHz around radio freq.

In addition, I used HRD V5.24 for radio control, plus DM780 (part of 
HRD) for digital and the logbook within HDR.  For JT65/JT9 I use WSJT-X 
V1.5 and JTAlertX (to ensure I don't duplicate contacts). All radio 
control is synchronized across platforms, although I'm sure I could 
probably set it up more elegantly.  All software is available for free.

I've got the KX3 running 10W digital without any overheating issues 
(after temperature compensation, addition of third party heat sink and 
placing small dual-computer fan under the KX3).  I also use a SignalLink 
to connect the computer to audio connections on the KX3. The rest of the 
station consists of 75ft coaxial run to a mini-G5RV at 20ft center height.

I've completed over 700 digital contacts since May using a variety of 
modes (primarily JT65, JT9, RTTY and PSK31) and bands (mostly 40, 20 and 
15m).  I'm 2 states away from mixed WAS - just need DE and VT.  Overseas 
contacts are more difficult to come by but casual participation mainly 
in RTTY contests has got me to 25 DXCC entities.  I can hear loads of 
overseas stations, I just don't have the power to get back to them.  The 
panadaptor is invaluable for locating band activity particularly during 
contests.  If fact, it's safe to say I would not buy another radio 
unless it offered this facility.

I also use PSKreporter.  This is a great way to see who can hear your 
digital transmissions and gives you confidence that you are getting out 
when sometimes CQs go unanswered.

Please let me know if you need further information.

73's Gary K6YOA

On 10/17/2015 1:48 AM, elecraft-request at mailman.qth.net wrote:
> Message: 11
> Date: Fri, 16 Oct 2015 15:24:37 -0700
> From: "Ed"<K7AAT at Yahoo.com>
> To:<elecraft at mailman.qth.net>
> Subject: [Elecraft] KX3 - easiest way to panadapt?
> Message-ID: <0ed701d10861$7230b660$56922320$@com>
> Content-Type: text/plain;	charset="us-ascii"
>
>
> I have a KX3.  I would like to use my computer and laptop ( Windows 7 and
> Windows 8 ) to display a spectrum from my KX3, using the RX I/Q output.
> What is the simplest and recommended easiest way to do this?  NaP3 ?
>
> I use my KX3 mostly on digital modes .... with SignaLink USB interface and
> sometimes with just the laptop soundcard interface.
>
> Ed   K7AAT



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