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High Stability Reference Oscillator

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David Ahrendts

High Stability Reference Oscillator

Pros: what is the operating advantage of the KTCXO3-1 1 PPM reference oscillator over the standard ‘ol bargain basement 5 PPM ref osc supplied with my lovely new K3S?

David Ahrendts [hidden email]

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Don Wilhelm-4

Re: High Stability Reference Oscillator

David,

Greater temperature stability. If you are not operating data modes like
JT65 which has long term transmit times, and your shack is at a
reasonable stable temperature, one should be as good as the other.

73,
Don W3FPR

On 8/2/2015 5:41 PM, David Ahrendts wrote:

> Pros: what is the operating advantage of the KTCXO3-1 1 PPM reference oscillator over the standard ‘ol bargain basement 5 PPM ref osc supplied with my lovely new K3S?
>
>
>
> David Ahrendts [hidden email]
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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Guy Olinger K2AV

Re: High Stability Reference Oscillator

In reply to this post by David Ahrendts

If it bothers you if your K3S drift just a tiny bit warming up, or it
bothers you if your 10MHz WWV is not absolutely dead on all the time,
or if you are operating 6 and 2 meters, you fix that with the
KTCXO3-1, or get the stuff to sync your K3S with GPS derived 10 MHz.

From quite some number of posts, in the end a lot of people want their
K3 absolutely dead on all the time. It just bothers them if it's not.

Operating advantage? None on the lower bands. VHF frequencies are
another matter.

I bought the KTCXO3-1 because I previously finally installed the
equivalent in my FT1000MP.

In the end, it's druthers or a requirement for a specialized operating mode.

73, Guy K2AV

On Sun, Aug 2, 2015 at 5:41 PM, David Ahrendts <[hidden email]> wrote:

Bob McGraw - K4TAX

Re: High Stability Reference Oscillator

In reply to this post by David Ahrendts

On 10M {28 MHz} a 0.5 PPM can have +/-14 Hz error while a 5 PPM can have
a +/- 140 Hz error. It is the frequency in MHz x the PPM which is
Parts Per Million.

My article scheduled for publication in September QST discusses the
frequency read out of today's radios and their likely inaccuracy.

73 Bob, K4TAX

On 8/2/2015 4:41 PM, David Ahrendts wrote: