I am quite excited by the KX3's overall design and form-factor but there
were a couple points I found surprisingly disappointing:
It sounds like people are saying that getting I/Q interface will require a
soundcard. Why not simply make a USB connection available that gives an
external SDR access
Ed - KL7UW
--
Message: 13
Date: Fri, 19 Aug 2011 17:42:47 -0700
From: Wayne Burdick
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
To: "k6...@foothill.net"
Cc: "elecraft@mailman.qth.net"
Message-ID: <860837f0-09d3-4c5c-a878-ad5eaee3b...@elecraft.com>
Content-Type
On Fri, Aug 19, 2011 at 8:10 AM, gmaxwell wrote:
>
> ...Why not simply make a USB connection available that gives an
> external SDR access to the IF...
=
IF output connected over USB? Maybe you mean a BNC, as is found on the back
of the K3. Like many others on this list, I feed the IF ou
Tony Estep wrote:
>
> IF output connected over USB? Maybe you mean a BNC,
>
No. I mean USB, as in digital output, as is found on the USRP (for example).
I see no attraction in yet another analog step that is only going to add
noise and interference, complicate PTT and control signaling, and l
On Fri, Aug 19, 2011 at 9:15 AM, gmaxwell wrote:
>
> > There's zero to be gained by having an outboard SDR box that would
> > duplicate
> > the down-conversion circuits in the KX3. My bet is that Elecraft would do
> > a
> > better job with that circuitry than today's SDR makers.
> >
>
> Exactly.
I believe what you are asking for means full soundcard function in the KX3.
That does not seem reasonable to me.
Why should others who do not desire that internal function have to pay
for it? There are many (I would even say most) who want the KX3 for
portable use (without dragging along a compu
Tony Estep wrote:
>
> Which is why you don't want the I-Q created by an outboard box, you want
> to
> get it out of the KX3.
>
I think you may be fixated on an initial misreading of my message. I never
said I wanted I/Q created by an outboard box.
I said I wanted access to the digitized quadr
Don Wilhelm-4 wrote:
>
> I believe what you are asking for means full soundcard function in the
> KX3.
> That does not seem reasonable to me.
> Why should others who do not desire that internal function have to pay
> for it?
>
Holy crap. I just want the digital signal that the radio is alrea
On Fri, Aug 19, 2011 at 9:55 AM, Don Wilhelm wrote:
> I believe what you are asking for means full soundcard function in the KX3.
> That does not seem reasonable to me.
>
=
I agree, it's not. But actually the request was for the IF to come out, so
that the I-Q could be generated twice, on
--Original Message-
From: Tony Estep
Sent: Friday, August 19, 2011 10:33 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
On Fri, Aug 19, 2011 at 9:15 AM, gmaxwell wrote:
>
> > There's zero to be gained by having an outboard SDR box
:55 AM
To: gmaxwell
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
I believe what you are asking for means full soundcard function in the KX3.
That does not seem reasonable to me.
Why should others who do not desire that internal function have to pay
for it
like a beautiful thing.
>
> -Original Message-
> From: Don Wilhelm
> Sent: Friday, August 19, 2011 10:55 AM
> To: gmaxwell
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
>
> I believe what you are asking for means full soundcard fun
@mailman.qth.net
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
Actually, I can see how Elecraft might consider making their own separately
boxed sound card interface to do what the original requestor wanted to do.
That is, take in the I/Q signal, digitize via the sound card, and
Sent: Friday, August 19, 2011 10:55 AM
>> To: gmaxwell
>> Cc: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
>>
>> I believe what you are asking for means full soundcard function in the KX3.
>> That does not seem rea
From: Don Wilhelm
>> Sent: Friday, August 19, 2011 10:55 AM
>> To: gmaxwell
>> Cc: elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
>>
>> I believe what you are asking for means full soundcard function in the KX3.
>> That
y of them, too. Volume cost is very
>>> very low, too. Making it an optional feature if it really breaks the bank..
>>>
>>> Not needing shielded analog cables seems like a beautiful thing.
>>>
>>> -Original Message-
>>> From: Don Wilhelm
>
ded analog cables seems like a beautiful thing.
> >>
> >> -----Original Message-
> >> From: Don Wilhelm
> >> Sent: Friday, August 19, 2011 10:55 AM
> >> To: gmaxwell
> >> Cc: elecraft@mailman.qth.net
> >> Subject: Re: [Elecraft] [
ally breaks the bank..
>>>
>>> Not needing shielded analog cables seems like a beautiful thing.
>>>
>>> -Original Message-
>>> From: Don Wilhelm
>>> Sent: Friday, August 19, 2011 10:55 AM
>>> To: gmaxwell
>>> Cc: elecraf
HUGE FAILURE TO COMMUNICATE, guys!!!
The originator wanted a IF, shorthand for interface. He should have
written it I/F and then all this extraneous e-mail would have been avoided.
The KX3, like the K3 is a SDR, meaning it has a IQ mixer to produce
the quadrature data streams for the internal
On Fri, Aug 19, 2011 at 2:50 PM, Edward R. Cole wrote:
>
> The originator wanted a IF, shorthand for interface. He should have
> written it I/F
Ah, you're right, Ed!
Tony KT0NY
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Elecraft mailing list
Home: http://mailman.qt
Yes, the I/Q data is already in digital form inside the KX3, so -- in
theory -- it should be easy to just pump it to the outside world in
digital form. The challenges are with the standards for that transfer.
If you could accept real-time digital data at the same speed the DSP
is r
.
-Original Message-
From: Jessie Oberreuter
Sent: Friday, August 19, 2011 5:54 PM
To: Edward R. Cole
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
Yes, the I/Q data is already in digital form inside the KX3, so -- in
theory -- it should be
One fundamental attraction of Elecraft gear [out of a countable infinity
of attractions, it seems] is its modularity ... you pay for what you
want. You want an autotuner for your K2, you purchase the KAT2. Don't
want it? Don't buy it, and your K2 still works, it just wants to see
something c
Hi Fred,
The RX analog I/Q output jack adds very little to the cost. It's a standard
feature.
Internal option modules include the ATU, roofing filter, and internal battery
pack with real-time clock (RTC).
(Totally off-topic: The RTC can wake-up the radio at a programmed time, turning
the KX
The KX3's size
> and multimode performance will really make it appealing.
>
> 73, Ed - KL7UW
>
> ------
> Message: 13
> Date: Fri, 19 Aug 2011 17:42:47 -0700
> From: Wayne Burdick
> Subject: Re: [Elecraft] [KX3] ADC/DAC access, key
On Fri, 19 Aug 2011, Christian KJ4VPK wrote:
>
> Trouble is today that 192 KHz USB sound cards are hard to come by
> (although the chipsets are widely available) and the same is true for a
> 192KHz sound card in the laptop/PC unless we are talking high end
> (=power hungry) hardware. Oh well. S
"
To: "Christian KJ4VPK"
Cc: "Edward R. Cole" ;
Sent: Saturday, August 20, 2011 11:14 PM
Subject: Re: [Elecraft] [KX3] ADC/DAC access, keyer input
>
> On Fri, 19 Aug 2011, Christian KJ4VPK wrote:
>>
>> Trouble is today that 192 KHz USB sound cards are hard
WRT 192 kHz sound cards in general (I don't understand why one would
want USB???) there are several US manufacturers. The Infrasonic Quartet
4 channel 24-bit 192 kHz PCI card is my favorite, and the claims by
several vendors (NewEgg, etc) that this is not available are false: the
manufacturer i
There are a number of technical as well as practical reasons why the IQ
output from the KX3 is buffered analog rather than USB. Or Firewire, or
Thunderbolt, or Ethernet, or S/PDIF, or AES3 or one of the other myriad
digital standards... Some of these reasons are likely to become more
apparent
--
Dave G KK7SS
Richland, WA
'59 Morris Minor 1000 - working on it..
'65 Sprite - in process :(
'76 Midget - co-owned with #4 Son :)
'06 Honda Civic Hybrid
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Lyle wrote:
> There are a number of technical as well as practical reasons
> why the IQ output from the KX3 is buffered analog rather than USB.
> Or Firewire, or Thunderbolt, or Ethernet, or S/PDIF, or AES3
> or one of the other myriad digital standards...
"The great thing about standards, is tha
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