K3: 1 ppm TCXO calibration - Methode 3 - Data sheet missing from ELECRAFT

[DM5TU/VY1QRP - sTef]

Hi Gang, Hi ELECRAFT,

I own a K3 S/N 3783.

Due to the the discontinuing of the K3 I now ordered the 1 ppm TCXO. All came in well as expected, except of one important piece of information.
Referring to my original paper printed K3 manual Rev. D Sept. 2009 page 50 "Reference Oscillator" there are 3 methods to calibrate the TCXO.

Using the mentioned "Method 3 (1 ppm TCXO option)" the manufacture delivers a data sheet which has to be used to calibrate the 1 ppm TCXO.

But there is no data sheet delivered by ELECRAFT.....
Methode 1 und 2 are NO sophisticated ways for me to calibrate such a 1 ppm TCXO.

Two questions, please:

1. Can someone from ELECRAFT please give me an explanation on that issue?
2. Would the calibration of the 1 ppm TCXO be obsolet when installing the external reference option K3EXREF?

As ever tnx for your replies

vy 72/3 de DM5TU - OM sTef
... -.-

DM5TU/VY1QRP - GQRP #8769 - DL-QRP-AG *GM* - CalQRP #034 - NAP #1607 - DM5TU @ TWITTER <http://twitter.com/dm5tu>
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[Don Wilhelm]

sTef,

Surely you can receive some standard station at a known stable frequency
and use Method 2.  While WWV is suggested, that method will work with
any station having a know stable frequency.

Method 3 had been discontinued some time ago.

73,
Don W3FPR

On 11/3/2019 2:20 AM, DM5TU - sTef wrote:

> Hi Gang, Hi ELECRAFT,
>
> I own a K3 S/N 3783.
>
> Due to the the discontinuing of the K3 I now ordered the 1 ppm TCXO. All came in well as expected, except of one important piece of information.
> Referring to my original paper printed K3 manual Rev. D Sept. 2009 page 50 "Reference Oscillator" there are 3 methods to calibrate the TCXO.
>
> Using the mentioned "Method 3 (1 ppm TCXO option)" the manufacture delivers a data sheet which has to be used to calibrate the 1 ppm TCXO.
>
> But there is no data sheet delivered by ELECRAFT.....
> Methode 1 und 2 are NO sophisticated ways for me to calibrate such a 1 ppm TCXO.
>
> Two questions, please:
>
> 1. Can someone from ELECRAFT please give me an explanation on that issue?
> 2. Would the calibration of the 1 ppm TCXO be obsolet when installing the external reference option K3EXREF?
>

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