Wayne,
If you remember Dayton, you saw some of what we do with the K line.
If you really want to know how strong the KX3 and K3 address ham radio
requirements, you really need to see our little group contest in the
low and high power categories and then switch to operate Field Day 3A
QRP.
The majority of our group belong to the Potomac Valley Radio Club.
What that means is there are at least a few of us who are serious; I
can't be called serious as I never learned to touch type. My point is
there is no other radio that I am aware of that can compete with the K
line when you look at what beginning through advanced hams need/want.
Let me change theme. I found it interesting that Icom said that they
were using direct sampling for the 7300. That statement contradicts what
they appear to really be doing. It appears to me that they are
digitizing a 36 KHz IF vice digitizing the spectrum as the Flex does.
Flex runs a 200 MHz 16 bit A/D that they use to produce the data on
which they operate. What I don't know from Icom is are they using a 16
or 24 bit A/D as you guys do; I prefer the 24 bit architecture. And, I
particularly prefer the KX3 architecture as you allowed me access the
I&Q data so I could play off the radio, something my friends with K3s
would have liked to have.
Vy 73,
Barry
K3NDM
------ Original Message ------
From: "Wayne Burdick" <[email protected]>
To: "Barry LaZar" <[email protected]>
Cc: "Bill" <[email protected]>; [email protected]
Sent: 3/1/2016 3:08:00 PM
Subject: Re: [Elecraft] Icom 7300 is available
Hi Barry,
Interesting. I wonder how it will compare to my KX3.
The only direct sampling complete rig that I was aware of was the
Flex 6000 series. I also wonder if it will be as flexible in operation
as a KX3. Ah technology, and so little time. ;-)
Since the 7300 uses direct sampling, it will have the same blocking
dynamic range (BDR) problem as other radios in this class, especially
multi-signal situations such as contesting. I also doubt it will beat
the KX3 in close-spaced dynamic range, unless they used a very exotic,
very expensive A-to-D converter. (Note that the only way the Flex 6700
series can achieve good close-in dynamic range is by turning on the
preamp. This overcomes the very poor preamp-off MDS, but at an even
greater cost in BDR.)
Beyond that, the KX3:
- is about 1/5th the size
- is about 1/5th the weight
- consumes probably 1/10th as much RX-mode current
- has an internal battery
- has an attached keyer paddle
- has built-in stereo audio and CW/RTTY/PSK31 text decode with a PC
- works with integrated peripherals (PX3 and KXPA100) that can be left
at
your fixed station when traveling
So if you're operating portable, it's an apples/oranges comparison.
73,
Wayne
N6KR
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