[hpsdr] New clock oscillator for OpenHPSDR?

[Kjell Karlsen]

Hi Scotty.

I was not thinking of a replacement for the clock we use in existing units  
but for future HPSDR projects it must be considered.

73, Kjell



På Fri, 13 Dec 2013 22:57:08 +0100, skrev Scott Cowling <scotty at tonks.com>:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi Kjell,
>
> Nice low phase noise!
>
> Unfortunately we can't drop it in for the existing openHPSDR boards,  
> since they require a 3.3V VCXO.  I suppose that we could dispense with  
> the control input and not be able to phase-lock to 10MHz, but the 5V  
> issue is more difficult.
>
> Crystek has offered to select our current oscillators to a stricter  
> phase-noise specification at a cost premium. I don't know if they could  
> approach the 945 spec, though, since it is around 10dB better at some  
> frequency offsets.
>
> 73,
> Scotty WA2DFI
>
>
>
>
> At 11:07 2013-12-13 +0100, Kjell Karlsen wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> Hi all.
>>
>> I just got this info from Crystec:
>> http://www.crystek.com/crystal/spec-sheets/clock/CCSS-945.pdf
>>
>> Extremely good phase noise!
>>
>> 73, Kjell
>>
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