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KTCXO3-1

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Richard Thorpe

KTCXO3-1

Hey Elecraft gurus, when will we see software to implement our $100
dollar TCXO 1ppm High Stability Reference Oscillators?

R Thorpe AC9D
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Leigh L. Klotz Jr WA5ZNU

Re: KTCXO3-1

Administrator

I'm not a guru, but the TCXO is already implemented. The fraction-ppm performance that might be gained by using some software isn't there, but the TCXO itself is already more stable than the basic option.

Leigh/WA5ZNU

N5GE

Re: KTCXO3-1

On Wed, 16 Jun 2010 16:07:58 -0700 (PDT), "Leigh L. Klotz Jr WA5ZNU"
<[hidden email]> wrote:

Yes, that is true, but the rest of the advertisement that led to the sale of
them (the auto temperature correction) has not been implemented. Which concerns
me and others that bought them.

That's one of the reasons I won't buy a P3 or any other major products until
they have been shipping next day for at least a year and advertised
functionality is complete.

Don't get me wrong, I love my K3's but it would be nice if they had every
feature advertised when I acquired them.

Tom, N5GE

K3 #806 with SUB RX, PR6,
KRC2 and K144XV
K3 #1055 with PR6 and XV432
W1, 2 W2's and other small kits

QCWA Life Member 35102

[hidden email]
http://www.n5ge.com
http://www.swotrc.net

>
>I'm not a guru, but the TCXO is already implemented. The fraction-ppm
>performance that might be gained by using some software isn't there, but the
>TCXO itself is already more stable than the basic option.
>
>Leigh/WA5ZNU

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Amateur Radio Operator N5GE

Dunc Carter - W5DC

Re: KTCXO3-1

Although I haven't changed the TCXO settings, after a very short warmup
period, my K3 stays within 1.5 Hz or less, mostly within about 1/2 Hz
with the main source of errors being what I assume are integer rounding
errors in the frequency generation chain which shouldn't be affected by
the auto temperature correction.; I have difficulty seeing this as a
real issue but maybe I'm just lucky. I have memory settings so that I
can quickly check 2.5, 5. 10, 15, and 20 MHz frequency standards and I'm
close enough to WWV to not receive it by sky wave so multipath errors
aren't a factor.

My apologies if this offends you but as far as I'm concerned, this is
another topic in the "Much Ado About Nothing" category.

73, Dunc, W5DC

Radio Amateur N5GE wrote:

> On Wed, 16 Jun 2010 16:07:58 -0700 (PDT), "Leigh L. Klotz Jr WA5ZNU"
> <[hidden email]> wrote:
>
> Yes, that is true, but the rest of the advertisement that led to the sale of
> them (the auto temperature correction) has not been implemented. Which concerns
> me and others that bought them.
>
> That's one of the reasons I won't buy a P3 or any other major products until
> they have been shipping next day for at least a year and advertised
> functionality is complete.
>
> Don't get me wrong, I love my K3's but it would be nice if they had every
> feature advertised when I acquired them.
>
> Tom, N5GE
>
> K3 #806 with SUB RX, PR6,
> KRC2 and K144XV
> K3 #1055 with PR6 and XV432
> W1, 2 W2's and other small kits
>
> QCWA Life Member 35102
>
> [hidden email]
> http://www.n5ge.com
> http://www.swotrc.net
>
>
>> I'm not a guru, but the TCXO is already implemented. The fraction-ppm
>> performance that might be gained by using some software isn't there, but the
>> TCXO itself is already more stable than the basic option.
>>
>> Leigh/WA5ZNU
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>

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Brett Howard

Re: KTCXO3-1

In reply to this post by N5GE

So you bought the TCXO because you wanted to be able to say that it
was further temperature compensated by firmware? Because what was
promised was that it would get to 0.5PPM via additional firmware
correction. Well it turns out that the oscillators already do that
out of the box. Thus implementing even further enhancement got moved
very low on the list because people were already receiving that which
they were promised.

At the moment there are MANY things that the P3 will be able to do
that are yet to be promised. You can easily tell by looking at the
back of one at a hamfest. There is a VGA connector port, a USB
Keyboard port, and a port to accept a W2 sensor... Think of all the
possibilities that can come from this.

Not to mention.. Think of all the features that have come to the K3
that weren't promised! I'd hope that you purchased the TCXO so that
you could have 0.5PPM rather than 5PPM accuracy on your reference You
can be comforted if that is the case as you are actually getting
exactly what you paid for.

~Brett (N7MG)

On Thu, Jun 17, 2010 at 8:46 AM, Radio Amateur N5GE <[hidden email]> wrote:

> On Wed, 16 Jun 2010 16:07:58 -0700 (PDT), "Leigh L. Klotz Jr WA5ZNU"
> <[hidden email]> wrote:
>
> Yes, that is true, but the rest of the advertisement that led to the sale of
> them (the auto temperature correction) has not been implemented. Which concerns
> me and others that bought them.
>
> That's one of the reasons I won't buy a P3 or any other major products until
> they have been shipping next day for at least a year and advertised
> functionality is complete.
>
> Don't get me wrong, I love my K3's but it would be nice if they had every
> feature advertised when I acquired them.
>
> Tom, N5GE
>
> K3 #806 with SUB RX, PR6,
> KRC2 and K144XV
> K3 #1055 with PR6 and XV432
> W1, 2 W2's and other small kits
>
> QCWA Life Member 35102
>
> [hidden email]
> http://www.n5ge.com
> http://www.swotrc.net
>
>>
>>I'm not a guru, but the TCXO is already implemented. The fraction-ppm
>>performance that might be gained by using some software isn't there, but the
>>TCXO itself is already more stable than the basic option.
>>
>>Leigh/WA5ZNU
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Eric Swartz - WA6HHQ

Re: KTCXO3-1

Administrator

Brett is correct in that we ultimately determined that the TCXO3-1 parts
already met our 0.5ppm spec, so additional temperature correction in f/w
was not necessary. We only planned on using the f/w correction if we
needed it to get to the 0.5ppm level. I apologize if we have not made
this clear.

We could possibly add even more temperature correction via firmware, but
this is a low priority project that may not happen in the near future.
It involves a fair amount of time to code and to test.

For even more frequency control, we are focusing on theK3 external
reference board for those that want to lock to their external freq
standards.

73, Eric WA6HHQ

On 6/17/2010 11:37 AM, Brett Howard wrote:

P.B. Christensen

Re: KTCXO3-1

To get to the next significant level of precision, that's a reasonable
priority. Even though the new reference board may not resolve to the
precision offered by a rubidium or GPS-DO standard, at least there's comfort
in knowing that lock is occurring to such a unit and that excellent
precision is being attained without having to validate against WWV, CHU,
JJY, etc. Confirmation of continuous or periodic lock on the K3's LCD
display would be a useful addition.

Paul, W9AC

> For even more frequency control, we are focusing on theK3 external
> reference board for those that want to lock to their external freq
> standards.

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M0XDF

Re: KTCXO3-1

In reply to this post by Brett Howard

I would like to be able to calibrate it according the manual and Method 3
73 de M0XDF
--
Sometimes I wonder whether the world is being run by smart people who are
putting us on or by imbeciles who really mean it.
-Mark Twain, author and humorist (1835-1910)

On 17 Jun 2010, at 19:37, Brett Howard wrote:

> So you bought the TCXO because you wanted to be able to say that it
> was further temperature compensated by firmware? Because what was
> promised was that it would get to 0.5PPM via additional firmware
> correction. Well it turns out that the oscillators already do that
> out of the box. Thus implementing even further enhancement got moved
> very low on the list because people were already receiving that which
> they were promised.
>
> At the moment there are MANY things that the P3 will be able to do
> that are yet to be promised. You can easily tell by looking at the
> back of one at a hamfest. There is a VGA connector port, a USB
> Keyboard port, and a port to accept a W2 sensor... Think of all the
> possibilities that can come from this.
>
> Not to mention.. Think of all the features that have come to the K3
> that weren't promised! I'd hope that you purchased the TCXO so that
> you could have 0.5PPM rather than 5PPM accuracy on your reference You
> can be comforted if that is the case as you are actually getting
> exactly what you paid for.
>
> ~Brett (N7MG)

Brett Howard

Re: KTCXO3-1

You can input the information via the K3 utility. It is then stored in the
radio...

~Brett

On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]>
wrote:

> I would like to be able to calibrate it according the manual and Method 3
> 73 de M0XDF
> --
> Sometimes I wonder whether the world is being run by smart people who are
> putting us on or by imbeciles who really mean it.
> -Mark Twain, author and humorist (1835-1910)
>
> On 17 Jun 2010, at 19:37, Brett Howard wrote:
>
>> So you bought the TCXO because you wanted to be able to say that it
>> was further temperature compensated by firmware? Because what was
>> promised was that it would get to 0.5PPM via additional firmware
>> correction. Well it turns out that the oscillators already do that
>> out of the box. Thus implementing even further enhancement got moved
>> very low on the list because people were already receiving that which
>> they were promised.
>>
>> At the moment there are MANY things that the P3 will be able to do
>> that are yet to be promised. You can easily tell by looking at the
>> back of one at a hamfest. There is a VGA connector port, a USB
>> Keyboard port, and a port to accept a W2 sensor... Think of all the
>> possibilities that can come from this.
>>
>> Not to mention.. Think of all the features that have come to the K3
>> that weren't promised! I'd hope that you purchased the TCXO so that
>> you could have 0.5PPM rather than 5PPM accuracy on your reference You
>> can be comforted if that is the case as you are actually getting
>> exactly what you paid for.
>>
>> ~Brett (N7MG)
>

M0XDF

Re: KTCXO3-1

Is it then used - I thought I saw a post saying you can input it, but it's not used.
And I wonder if that works in the OSX version ?
73 de M0XDF
--
As a well spent day brings happy sleep, so life well used brings happy
death. -Leonardo da Vinci, painter, engineer, musician, and scientist
(1452-1519)

On 17 Jun 2010, at 21:46, Brett Howard wrote:

> You can input the information via the K3 utility. It is then stored in the radio...
>
> ~Brett
>
> On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]> wrote:
> > I would like to be able to calibrate it according the manual and Method 3
> > 73 de M0XDF
> > --
> > Sometimes I wonder whether the world is being run by smart people who are
> > putting us on or by imbeciles who really mean it.
> > -Mark Twain, author and humorist (1835-1910)
> >
> > On 17 Jun 2010, at 19:37, Brett Howard wrote:
> >
> >> So you bought the TCXO because you wanted to be able to say that it
> >> was further temperature compensated by firmware? Because what was
> >> promised was that it would get to 0.5PPM via additional firmware
> >> correction. Well it turns out that the oscillators already do that
> >> out of the box. Thus implementing even further enhancement got moved
> >> very low on the list because people were already receiving that which
> >> they were promised.
> >>
> >> At the moment there are MANY things that the P3 will be able to do
> >> that are yet to be promised. You can easily tell by looking at the
> >> back of one at a hamfest. There is a VGA connector port, a USB
> >> Keyboard port, and a port to accept a W2 sensor... Think of all the
> >> possibilities that can come from this.
> >>
> >> Not to mention.. Think of all the features that have come to the K3
> >> that weren't promised! I'd hope that you purchased the TCXO so that
> >> you could have 0.5PPM rather than 5PPM accuracy on your reference You
> >> can be comforted if that is the case as you are actually getting
> >> exactly what you paid for.
> >>
> >> ~Brett (N7MG)
> >
>

Brett Howard

Re: KTCXO3-1

You said you wanted to be able to calibrate it via the data that came
with the device. You can calibrate it by inputting the data to the
radio and you will get the 0.5PPM accuracy you were promised. Does
that mean that the data is used? No. But you CAN input it and you
WILL get the accuracy you paid for.

~Brett (N7MG)

On Thu, Jun 17, 2010 at 2:10 PM, David Ferrington, M0XDF
<[hidden email]> wrote:

> Is it then used - I thought I saw a post saying you can input it, but it's
> not used.
> And I wonder if that works in the OSX version ?
> 73 de M0XDF
> --
> As a well spent day brings happy sleep, so life well used brings happy
> death. -Leonardo da Vinci, painter, engineer, musician, and scientist
> (1452-1519)
> On 17 Jun 2010, at 21:46, Brett Howard wrote:
>
> You can input the information via the K3 utility. It is then stored in the
> radio...
>
> ~Brett
>
> On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]>
> wrote:
>> I would like to be able to calibrate it according the manual and Method 3
>> 73 de M0XDF
>> --
>> Sometimes I wonder whether the world is being run by smart people who are
>> putting us on or by imbeciles who really mean it.
>> -Mark Twain, author and humorist (1835-1910)
>>
>> On 17 Jun 2010, at 19:37, Brett Howard wrote:
>>
>>> So you bought the TCXO because you wanted to be able to say that it
>>> was further temperature compensated by firmware? Because what was
>>> promised was that it would get to 0.5PPM via additional firmware
>>> correction. Well it turns out that the oscillators already do that
>>> out of the box. Thus implementing even further enhancement got moved
>>> very low on the list because people were already receiving that which
>>> they were promised.
>>>
>>> At the moment there are MANY things that the P3 will be able to do
>>> that are yet to be promised. You can easily tell by looking at the
>>> back of one at a hamfest. There is a VGA connector port, a USB
>>> Keyboard port, and a port to accept a W2 sensor... Think of all the
>>> possibilities that can come from this.
>>>
>>> Not to mention.. Think of all the features that have come to the K3
>>> that weren't promised! I'd hope that you purchased the TCXO so that
>>> you could have 0.5PPM rather than 5PPM accuracy on your reference You
>>> can be comforted if that is the case as you are actually getting
>>> exactly what you paid for.
>>>
>>> ~Brett (N7MG)
>>
>
>

Grant Youngman

Re: KTCXO3-1

In reply to this post by Brett Howard

It may be stored, but it isn't used. Hardly matters. It's a radio sold to amateur radio operators for use as a radio, not a NIST field office.

My suspicion is that if this feature were implemented, we'd have the entire cadre of guys who insist on measuring everything measuring the radio in an oven and endlessly griping because it STILL wasn't precisely accurate at 22.567 deg C, and probably arguing among themselves over who had the most accurate proof of the "problem" ... :-) Yikes!

Grant/NQ5T

On Jun 17, 2010, at 3:46 PM, Brett Howard wrote:

> You can input the information via the K3 utility. It is then stored in the
> radio...
>
> ~Brett
>
> On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]>
> wrote:
>> I would like to be able to calibrate it according the manual and Method 3
>> 73 de M0XDF

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Grant Youngman

Re: KTCXO3-1

In reply to this post by M0XDF

The current OS X version of Utility does not have the feature. YOu have to use the Win(doze) version.

The RADIO -- you know, the K3 -- does not support Mode 3 calibration. You can key anything in there you like -- your mom's birthday, lucky numbers, the angular momentum of Uranus, or even the data sheet from Elecraft. It won't matter, and won't affect the radio calibration accuracy.

Grant/NQ5T

On Jun 17, 2010, at 4:10 PM, David Ferrington, M0XDF wrote:

> Is it then used - I thought I saw a post saying you can input it, but it's not used.
> And I wonder if that works in the OSX version ?nate.html

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M0XDF

Re: KTCXO3-1

In reply to this post by Brett Howard

Brett, I think after all this time, I may have misunderstood the Reference Oscillator calibration instructions.
I had always read the following:

Reference Oscillator
The K3’s reference oscillator is a TCXO, or temperature-compensated crystal oscillator. It is normally calibrated at assembly time or by the factory. There are two types: 5 ppm and 1 ppm.
Either TCXO can be calibrated using an accurate frequency counter (Method 1), or by zero-beating the sidetone against a reference signal (Method 2).
Accuracy of the 1 ppm TCXO can be improved by entering the supplied calibration data (Method 3). Be sure to keep the data sheet that was supplied with the oscillator.

As meaning there were 3 methods of calibrating the frequency, but now I think there are only 2 ways to calibrate it, plus the possibility of improving the stability (method 3).

I'm happy that it's very stable, but not sure I did a good job on the frequency. I don't have a frequency counter and did the best I could to zero-beat it.

so thanks for your comments, they have helped me understand this better.
73 de M0XDF
--
It is not how old you are, but how you are old. -Jules Renard, writer
(1864-1910)

On 17 Jun 2010, at 22:13, Brett Howard wrote:

> You said you wanted to be able to calibrate it via the data that came
> with the device. You can calibrate it by inputting the data to the
> radio and you will get the 0.5PPM accuracy you were promised. Does
> that mean that the data is used? No. But you CAN input it and you
> WILL get the accuracy you paid for.
>
> ~Brett (N7MG)
>
> On Thu, Jun 17, 2010 at 2:10 PM, David Ferrington, M0XDF
> <[hidden email]> wrote:
>> Is it then used - I thought I saw a post saying you can input it, but it's
>> not used.
>> And I wonder if that works in the OSX version ?
>> 73 de M0XDF
>> --
>> As a well spent day brings happy sleep, so life well used brings happy
>> death. -Leonardo da Vinci, painter, engineer, musician, and scientist
>> (1452-1519)
>> On 17 Jun 2010, at 21:46, Brett Howard wrote:
>>
>> You can input the information via the K3 utility. It is then stored in the
>> radio...
>>
>> ~Brett
>>
>> On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]>
>> wrote:
>>> I would like to be able to calibrate it according the manual and Method 3
>>> 73 de M0XDF
>>> --
>>> Sometimes I wonder whether the world is being run by smart people who are
>>> putting us on or by imbeciles who really mean it.
>>> -Mark Twain, author and humorist (1835-1910)
>>>
>>> On 17 Jun 2010, at 19:37, Brett Howard wrote:
>>>
>>>> So you bought the TCXO because you wanted to be able to say that it
>>>> was further temperature compensated by firmware? Because what was
>>>> promised was that it would get to 0.5PPM via additional firmware
>>>> correction. Well it turns out that the oscillators already do that
>>>> out of the box. Thus implementing even further enhancement got moved
>>>> very low on the list because people were already receiving that which
>>>> they were promised.
>>>>
>>>> At the moment there are MANY things that the P3 will be able to do
>>>> that are yet to be promised. You can easily tell by looking at the
>>>> back of one at a hamfest. There is a VGA connector port, a USB
>>>> Keyboard port, and a port to accept a W2 sensor... Think of all the
>>>> possibilities that can come from this.
>>>>
>>>> Not to mention.. Think of all the features that have come to the K3
>>>> that weren't promised! I'd hope that you purchased the TCXO so that
>>>> you could have 0.5PPM rather than 5PPM accuracy on your reference You
>>>> can be comforted if that is the case as you are actually getting
>>>> exactly what you paid for.
>>>>
>>>> ~Brett (N7MG)
>>>
>>
>>

Brett Howard

Re: KTCXO3-1

In reply to this post by Grant Youngman

Thats a feature. No matter what you enter you'll always get the
0.5PPM that you paid for. ;)

~Brett

On Thu, Jun 17, 2010 at 2:27 PM, Grant Youngman <[hidden email]> wrote:

> The current OS X version of Utility does not have the feature. YOu have to use the Win(doze) version.
>
> The RADIO -- you know, the K3 -- does not support Mode 3 calibration. You can key anything in there you like -- your mom's birthday, lucky numbers, the angular momentum of Uranus, or even the data sheet from Elecraft. It won't matter, and won't affect the radio calibration accuracy.
>
> Grant/NQ5T
>
>
> On Jun 17, 2010, at 4:10 PM, David Ferrington, M0XDF wrote:
>
>> Is it then used - I thought I saw a post saying you can input it, but it's not used.
>> And I wonder if that works in the OSX version ?nate.html
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Brett Howard

Re: KTCXO3-1

In reply to this post by M0XDF

Understood. That makes a lot more sense. I'd bet you probably did
better than you think but I understand the FUD (Fear, Uncertainty,
and/or Doubt) that you may have messed it up. Perhaps you could
borrow a MFJ259B from a local club or elmer to get the job done. I
used the zero beat function and then later brought home my Agilent
MSO6104 scope (as they have hardware frequency counters in them) and
found that I was only off by a few Hz. Honestly the main thing is
that when you call some one they answer you. In certain modes that
can become a much more difficult task but I think if you were running
into that issue you'd know...

~Brett (N7MG)

On Thu, Jun 17, 2010 at 2:37 PM, David Ferrington, M0XDF
<[hidden email]> wrote:

> Brett, I think after all this time, I may have misunderstood the Reference Oscillator calibration instructions.
> I had always read the following:
>
> Reference Oscillator
> The K3’s reference oscillator is a TCXO, or temperature-compensated crystal oscillator. It is normally calibrated at assembly time or by the factory. There are two types: 5 ppm and 1 ppm.
> Either TCXO can be calibrated using an accurate frequency counter (Method 1), or by zero-beating the sidetone against a reference signal (Method 2).
> Accuracy of the 1 ppm TCXO can be improved by entering the supplied calibration data (Method 3). Be sure to keep the data sheet that was supplied with the oscillator.
>
> As meaning there were 3 methods of calibrating the frequency, but now I think there are only 2 ways to calibrate it, plus the possibility of improving the stability (method 3).
>
> I'm happy that it's very stable, but not sure I did a good job on the frequency. I don't have a frequency counter and did the best I could to zero-beat it.
>
>
> so thanks for your comments, they have helped me understand this better.
> 73 de M0XDF
> --
> It is not how old you are, but how you are old. -Jules Renard, writer
> (1864-1910)
>
> On 17 Jun 2010, at 22:13, Brett Howard wrote:
>
>> You said you wanted to be able to calibrate it via the data that came
>> with the device. You can calibrate it by inputting the data to the
>> radio and you will get the 0.5PPM accuracy you were promised. Does
>> that mean that the data is used? No. But you CAN input it and you
>> WILL get the accuracy you paid for.
>>
>> ~Brett (N7MG)
>>
>> On Thu, Jun 17, 2010 at 2:10 PM, David Ferrington, M0XDF
>> <[hidden email]> wrote:
>>> Is it then used - I thought I saw a post saying you can input it, but it's
>>> not used.
>>> And I wonder if that works in the OSX version ?
>>> 73 de M0XDF
>>> --
>>> As a well spent day brings happy sleep, so life well used brings happy
>>> death. -Leonardo da Vinci, painter, engineer, musician, and scientist
>>> (1452-1519)
>>> On 17 Jun 2010, at 21:46, Brett Howard wrote:
>>>
>>> You can input the information via the K3 utility. It is then stored in the
>>> radio...
>>>
>>> ~Brett
>>>
>>> On Jun 17, 2010 1:16 PM, "David Ferrington, M0XDF" <[hidden email]>
>>> wrote:
>>>> I would like to be able to calibrate it according the manual and Method 3
>>>> 73 de M0XDF
>>>> --
>>>> Sometimes I wonder whether the world is being run by smart people who are
>>>> putting us on or by imbeciles who really mean it.
>>>> -Mark Twain, author and humorist (1835-1910)
>>>>
>>>> On 17 Jun 2010, at 19:37, Brett Howard wrote:
>>>>
>>>>> So you bought the TCXO because you wanted to be able to say that it
>>>>> was further temperature compensated by firmware? Because what was
>>>>> promised was that it would get to 0.5PPM via additional firmware
>>>>> correction. Well it turns out that the oscillators already do that
>>>>> out of the box. Thus implementing even further enhancement got moved
>>>>> very low on the list because people were already receiving that which
>>>>> they were promised.
>>>>>
>>>>> At the moment there are MANY things that the P3 will be able to do
>>>>> that are yet to be promised. You can easily tell by looking at the
>>>>> back of one at a hamfest. There is a VGA connector port, a USB
>>>>> Keyboard port, and a port to accept a W2 sensor... Think of all the
>>>>> possibilities that can come from this.
>>>>>
>>>>> Not to mention.. Think of all the features that have come to the K3
>>>>> that weren't promised! I'd hope that you purchased the TCXO so that
>>>>> you could have 0.5PPM rather than 5PPM accuracy on your reference You
>>>>> can be comforted if that is the case as you are actually getting
>>>>> exactly what you paid for.
>>>>>
>>>>> ~Brett (N7MG)
>>>>
>>>
>>>
>
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