[hpsdr] Penelope changes for Excalibur?

[Graham / KE9H]

Pete:

For Excalibur to work, all you have to do is select Atlas as the source
of 10 MHz, or in the later versions of PowerSDR, check Excalibur as
present.  That is all that is essential.


Not essential, but optional:
To reduce the level of 10 MHz clock signal leakage present in the 
receiver, you may
disable the on board 10 MHz clock on Mercury by pulling a jumper (JP8).

To disable the on-board 10 MHz clock on Penelope, which is the discussion
you recall, you need to cut some track.  I personally prefer to not
cut up my Penelope.

--- Graham / KE9H

n3evl wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I'm almost finished construction of Excalibur and will be ready to try 
> it out soon.
>
> I seem to recall some discussion relating to disabling the on-board 
> 10MHz osc on Penelope.
>
> Have I remembered this correctly and is this considered an essential 
> hardware change?
>
> Is it only Penelope that is affected (I don't remember seeing any 
> similar discussion for Mercury)?
>
> I plan (initially) on using Excalibur's on board TXCO but will likely 
> add an external ref later.
>
> Can any of the Penelope/Excalibur resident experts clarify the need 
> for this possible change and provide details (picture would be nice) 
> of exactly what/where/how to achieve this.
>
> Thanks, and Happy New Year to all on the HPSDR list.
>
> Pete, N3EVL

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