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, in
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
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 ca
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. Clearl
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 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 (D
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:
>O
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:
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.
> 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 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
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
comman
On Jun 18, 2007, at 1:51 PM, Toby Deinhardt wrote:
Ideally the K3 would stream I and Q signals at 44k samples per
second...
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
Ideally the K3 would stream I and Q signals at 44k samples per second...
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
--
DD5FZ, 4N6FZ
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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
- 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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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 p
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
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 can send demodulated data via the RS-232 to the
comput
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