[hpsdr] Mercury SSB Phase Noise Testing

[Kjell Karlsen]

Hello Ron.

I had a look at the specs for HP8656B and the phase noise from  
0,1-123,5MHz at 20 KHz ofset is -114dBc/Hz so I think most of the noise is  
 from the generator.

73, Kjell LA2NI.





På Mon, 26 Oct 2009 20:35:38 +0100, skrev Ronald Cox <w9kfb1 at mac.com>:

> ***** High Performance Software Defined Radio Discussion List *****
>
> Lyle,
> I suspect that the test generator may be the source of the phase noise  
> also. I will try the same tests using the output of the level meter and  
> see if the results differ. Also do some research on the specs of the two  
> instruments.
>
> Ron, W9KFB
> Indinanapolis
>
>
> On Oct 26, 2009, at 3:24 PM, Lyle Johnson wrote:
>
>> Hello Ron!
>>
>>> Please let me know if you see any issues with the tests so far.
>>
>> Thank you for running these tests.
>>
>> The results seem high to me.  I haven't measured and lack the equipment
>> to do so.  I wonder if the results are dominated by the phase noise of
>> the sig gen?  Might need a really clean crystal oscillator to measure
>> against.
>>
>> This is not my area of expertise, so I'll let others chime in.
>>
>> 73,
>>
>> Lyle KK7P
>>
>>
>
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