Hi Tim,
It's near the top of my list, but probably won't happen until I get
back from vacation at the end of July. Sorry about that.
Wayne
N6KR
On Jul 6, 2011, at 4:00 PM, Tim Taylor wrote:
> Wonder how Wayne is coming on the firmware to allow the K1444XV/
> K144REEFLK
> to work with the K3E
Wonder how Wayne is coming on the firmware to allow the K1444XV/K144REEFLK
to work with the K3EXREF.
This is a gentle nudge :-)
-Tim K8XS
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discussing.
Beats our current ±30ppm on our existing time-of-day design, which
works out to ±80 seconds/month.
I'd certainly be happy if the K3 clock would stay within ±1 min/yr...
73,
-- Dave, N8SBE
> Original Message
> Subject: Re: [Elecraft] [K3] K3EXREF K144REFLK and K1
It sounds like someone with lots of spare time on their hands and some
fancy calibration equipment could make some money by having people
send them their KVCXO3-1s and record calibration data.
The best part about this business is that if you really care about
your accuracy, you will have to have t
On Jun 9, 2011, at 1:42 PM, Bruce Beford wrote:
> I understand that when using the K3EXREF there is no need for this
> data.
> But, what I was wondering is if this would be a method by which an
> end user
> of the KTCXO3-1, (or Elecraft internally) could use this or a
> similar method
> to
I understand that when using the K3EXREF there is no need for this data.
But, what I was wondering is if this would be a method by which an end user
of the KTCXO3-1, (or Elecraft internally) could use this or a similar method
to compile this 1 degree increment data easily? It could be used when not
There is no need to do any type of temperature correction if you're
using the K3EXREF. This option uses an external reference to send
corrections to the K3's MCU automatically so that it always knows the
actual frequency of the 49-MHz oscillator.
What some are asking for is that the K144XV's
Couldn't this be automated for those with the K3EXREF?
Since the K3EXREF is applying a "fudge factor" (technical term) based on the
instantaneous error of the 49 MHz TXCO, one could "simply" read the
correction and the front panel temp over a thermal "run". The data could
then be massaged (another
Sorry, Seiko is the RTC -- google for S35390A_E.pdf
Dallas (Maxim) is the TXCO supplier -- google for DS32kHz-DS32KHZS.pdf
73,
-- Dave, N8SBE
> Original Message
> Subject: Re: [Elecraft] [K3] K3EXREF K144REFLK and K144XV
> From: Wayne Burdick
> Date: Thu, June 0
plier right now on a fix for a drifting
time-of-day clock issue, and the proposed solution involves a Seiko TXCO
oscillator that operates over -40C to +85C (automotive interior) and
supposedly gives .5 ppm.
73,
-- Dave, N8SBE
> Original Message ----
> Subject: Re: [Elecraft]
I suspect you're not the only one, and that's why I haven't been
pushing this.
Wayne
N6KR
On Jun 9, 2011, at 11:18 AM, Terry Posey wrote:
> I am not everyone, but I would NOT bother with an environmental
> chamber
> test/calibration.
>
> Terry K4RX
>
> XXX
> This is a long answer to
I am not everyone, but I would NOT bother with an environmental chamber
test/calibration.
Terry K4RX
XXX
This is a long answer to your question. It begs the further question,
Would anyone bother?
73,
Wayne
N6KR
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Elecraft m
on't have to keep syncing it with my laptop to keep it
> reasonably on time.
>
> Thanks,
>
> -- Dave, N8SBE
>
>> Original Message
>> Subject: Re: [Elecraft] [K3] K3EXREF K144REFLK and K144XV
>> From: Wayne Burdick
>> Date: Thu, June 09, 2011 1:0
finishing
that project.
On a related note, it wouldn't hurt to do something to fix the real time
clock, so I don't have to keep syncing it with my laptop to keep it
reasonably on time.
Thanks,
-- Dave, N8SBE
> Original Message ----
> Subject: Re: [Elecraft] [K3] K3
I'm on the hook for this. I'll send out test code when it's ready.
73,
Wayne
N6KR
On Jun 9, 2011, at 9:36 AM, David Pratt wrote:
> Tim - My understanding is that the K3EXREF does not stabilise the
> transverter offset. I believe this is planned in a future K3 firmware
> upgrade, but as far as I
That is my understanding.
73,
Tim
-Original Message-
From: David Pratt [mailto:da...@g4dmp.fsnet.co.uk]
Sent: Thursday, June 09, 2011 12:36 PM
To: Tim Taylor
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] K3EXREF K144REFLK and K144XV
Tim - My understanding is that the K3EXREF
Tim - My understanding is that the K3EXREF does not stabilise the
transverter offset. I believe this is planned in a future K3 firmware
upgrade, but as far as I am aware this has not yet happened.
73 de David G4DMP
In a recent message, Tim Taylor writes
>So right now, the K3EXREF will stabilize
Hello,
I have a K3 with the K3EXREF, K144REFLK and K144XV.
Let me start by saying that the K3EXREF performs as described. It keeps the
K3 tuned to a frequency within about plus/minus 2 Hz. However, I don't think
it operates the way I thought. I initially thought that the K3EXREF adjusted
the a
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