[Elecraft] KX3 "Full" SDR

[Fred Smith]

Craig I'm a DX'er only and use my KX3 for QRP DX'ing. The band pass filter
works very well in the radio and IMHO a must have option


73,
Fred/N0AZZ
K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100
P3/SVGA--KAT500--W2
Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G
300+w--(2) B-5016-G's 165w 2m


 for a DX'er.

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Craig Schroeder
Sent: Tuesday, December 31, 2013 10:10 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KX3 "Full" SDR

Thank you everyone for responding so promptly to my SDR question and with
such great information!  

A particular point made in regard to SDR on the KX3 was hardware filter
options vs software filters. 

Are there differences here that are important to consider from a user's
perspective?  Pros/Cons of either approach?  

Perhaps I should add that I'm primarily interested in DX'ing. The
portability of the KX3 is a real bonus, but a secondary consideration.  I
plan to use the radio I purchase as my primary rig.

Thank you,

Craig
KD0TXL


On Dec 31, 2013, at 9:23 AM, Matt Zilmer <mzilmer at roadrunner.com> wrote:

Actually, a full SDR would have modulation and demod running in the host
software.  A KX3 is self-contained in this regard, but can be used with a PC
or Mac for CW, RTTY, data modes, etc.

Signal processing capabilties are excellent on the KX3, and the array of DSP
features is both wide and deep.

Originally, the KX3 was intended to be a portable trail radio, which is
mostly the way I've used it.  However since its introduction, the
KX3 has found a large following of ops that use it as their main base
station rig (either in addition to or in place of portable ops).

I guess if you consider that all major functions are software-based (either
MCU or DSP) and executing on a robust and bulletproof RF-hardware platform,
the KX3 is an SDR.  Depends on how you define an SDR.

73,
matt W6NIA


> On Tue, 31 Dec 2013 08:35:36 -0600, you wrote:
> 
> Happy New Year,
> 
> I want to move into the hobby aspects of SDR and have narrowed my list to
the KX3 with 100 watt Amp or a Flex 3000.  I have been told that though the
KX3 will connect to a PC it is not a "full" SDR radio (my understanding of
"full" is in regard to signal processing but there may be other factors
implied that I am not aware of being new to the SDR world).  
> 
> If this perspective is on target, what are the important SDR limitations
with the KX3 that I should consider?  If there are no important limitations,
I do like the form factor and knobs on the KX3 over the Flex software-only
interface.
> 
> Thank you,
> 
> Craig Schroeder
> KD0TXL
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