You were very correct about my first number being bogus. I misinterpreted my
notes. I should have been more careful, before posting.
These are the correct REF CAL numbers
As it came from Elecraft, it was set to 49.379.766
July 10 of this year, I changed it to 49.379.448
On November 30, I
ration away. But your 10-MHz
> reference needs to be very accurate/stable. I use a surplus OCXO that needs
> re-calib about every 4-6 months (usually only 1-Hz drift). My OCXO runs 24/7
> to avoid warm up drift.
>
> Hope that helps.
>
> 73, Ed - KL7UW
>
> From: "Gary
drift.
Hope that helps.
73, Ed - KL7UW
From: "Gary Peterson"
To:
Subject: [Elecraft] TCXO drift and calibration
Message-ID:
Content-Type: text/plain; charset="iso-8859-1"
Last February, I purchased a factory assembled K3S including a 1 ppm
TCXO. The transcei
Your first number is bogus, but generally speaking if your other numbers are
correct, that does seem excessive. That said, crystals do age and some of this
depends on power on/off cycles. I'm now to the point of leaving my K3S powered
continuously.
I recently ran some drift tests and found
Last February, I purchased a factory assembled K3S including a 1 ppm TCXO. The
transceiver is serial number 11803 and the firmware was updated on May 5th of
this year.
Last July, I noticed that many of the signals on 50.125 MHz sounded as if they
were a bit off frequency as they were higher
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