On Jul 9, 2007, at 2:59 AM, David Woolley wrote:
Bill Coleman wrote:
What you'd end up with for the receiver would be a Mixer and
clean DDS, followed by a high-speed, wide-range A/D converter.
Everything else
I don't understand why you write about such things as in the
future. There
On Jul 9, 2007, at 4:44 PM, Brian Lloyd wrote:
Well, you have just described the product offerings from Flex Radio.
Not exactly what I had in mind -- there's way too much hardware
involved.
My concern over the Flex Radio SDR approach compared to Elecraft's
approach in the K3 is that,
Bill Coleman wrote:
What you'd end up with for the receiver would be a Mixer and clean
DDS, followed by a high-speed, wide-range A/D converter. Everything else
I don't understand why you write about such things as in the future.
There are several products on the amateur market, although I
On 7/9/07, Bill Coleman [EMAIL PROTECTED] wrote:
One way of simplifying this whole process is to move the radio into
the computer. This is in line with a prediction I made way back in
1995 on the CQ-Contest list -- that the radio of the future would be
inside the computer.
I hope not. Clearly
One way of simplifying this whole process is to move the radio into
the computer. This is in line with a prediction I made way back in
1995 on the CQ-Contest list -- that the radio of the future would
be inside the computer. In 1995, processors were just appearing
that had sufficient DSP
On Jun 19, 2007, at 9:42 AM, Brian Lloyd wrote:
Not true. The K3 converts from A:D as a step in the second IF. The
final filtering takes place in the K3's DSP as does the demodulation.
If you then go to a soundcard you are now adding another conversion
and a third IF. The K3's second IF
On 6/18/07, Doug Faunt N6TQS +1-510-655-8604 [EMAIL PROTECTED] wrote:
The capability of sending decoded data out the serial port would be
most useful.
Yes, but even if it *can* do this, I'd bet that it is going to be
encapsulated in a K3 protocol message like the output from other CAT
On 6/18/07, Toby Deinhardt [EMAIL PROTECTED] wrote:
It has always struck me as a bit silly to go from analog to digital back
to analog only to return to digital, which is what you would be doing
with the K3 and a sound card based solution.
I think the number of conversions is the same, it's
I think the number of conversions is the same, it's just a matter of
I *SERIOUSLY* doubt that Elecraft would leave the digital world once the low IF
has been sampled, except for the loud speaker / head phones / line out.
It wouldn't make sense, imho.
vy 73 de toby
On Jun 19, 2007, at 1:08 AM, Julian G4ILO wrote:
On 6/18/07, Toby Deinhardt [EMAIL PROTECTED] wrote:
It has always struck me as a bit silly to go from analog to
digital back
to analog only to return to digital, which is what you would be doing
with the K3 and a sound card based solution.
Of course. That's a pretty simple decoding job- display this string, don't
display this one.
73, doug
Date: Tue, 19 Jun 2007 09:01:17 +0100
From: Julian G4ILO [EMAIL PROTECTED]
Content-Disposition: inline
On 6/18/07, Doug Faunt N6TQS +1-510-655-8604 [EMAIL PROTECTED] wrote:
Exactly the case. With the built-in decoder you can take the K3 someplace
portable
without a computer and still send and receive PSK31/RTTY just as easily as
having a
QSO in CW.
-
73,
Greg - AB7R
Whidbey Island WA
NA-065
On Tue Jun 19 4:08 , Julian G4ILO sent:
On
- Original Message -
From: [EMAIL PROTECTED]
Why would I want to use a soundcard program if I've got a good demodulator
(RTTY, PSK) in the K3?
This is a good example of the cut-off between the K3's firmware and PC
software. If you are going to use a PC then the logical solution is
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Simon Brown (HB9DRV) wrote:
- Original Message - From: [EMAIL PROTECTED]
Why would I want to use a soundcard program if I've got a good
demodulator
(RTTY, PSK) in the K3?
This is a good example of the cut-off between the K3's
Dream
Ideally the K3 would stream I and Q signals at 44k samples per second...
/Dream
It has always struck me as a bit silly to go from analog to digital back
to analog only to return to digital, which is what you would be doing
with the K3 and a sound card based solution.
vy 73 de toby
--
On Jun 18, 2007, at 1:51 PM, Toby Deinhardt wrote:
Dream
Ideally the K3 would stream I and Q signals at 44k samples per
second...
/Dream
It has always struck me as a bit silly to go from analog to digital
back to analog only to return to digital, which is what you would
be doing with
On 6/18/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Hi Greg,
I don't think so as there is no way to ...
... soundcard program that will allow you to do this?
Why would I want to use a soundcard program if I've got a good demodulator
(RTTY, PSK) in the K3?
I would have thought that the K3
Given the increasing difficulty of producing a 45 baud 5 bit code,
having translation both ways in the K3 would be useful, even with a
computer attached.
And the K3 has what I expect to be a reasonably capable CW decoder,
too. In any case, if the output of the decoder can be sent out the
serial
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