[hpsdr] Mercury - Alpha 3 results

[rihob., es7aaz]

Hi,

Is there any I&Q recording file(s) available ?
Just can't wait how does this beauty actually sounds like :)


73's form Estonia,
Riho, ES7AAZ.



Phil Harman wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> All,
> 
> I very please to advise that the Alpha 3 Mercury board has passed all 
> tests and I will be passing it to Scotty so he can prepare it for 
> production.
> 
> The performance figures are as follows:
> 
> ADC overload (preamp on ) -12dBm  (preamp off) +8dBm
> 
> MDS (500Hz) all bands 160m - 6m  =  -138dBm  (preamp on) - 118dBm 
> (preamp off)
> MDS (500Hz) 6m via Alex preamp = -146dBm
> 
> IP3 equivalent = +33dBm (preamp on)  >50dBm (preamp off)
> The IP3 is independant of tone spacing.
> 
> Blocking Dynamic Range 119dB
> 
> Blocking Dynamic Range was measured at 100kHz and 5 kHz for 1dB gain 
> compression with similar results.
> The DBR is set by the overload point of the ADC rather than being phase 
> noise limited.
> 
> 122.88MHz clock phase noise  -149dBc/Hz at 1kHz spacing.
> 
> Mercury has taken longer than we expected to reach production but given 
> the performance figure we are achieving I trust that it  will have been 
> worth the wait.
> 
> We can expect an announcement in relation to pricing, ordering and 
> production time frames from TAPR shortly.
> 
> 73's Phil...VK6APH
> 
> 
> 
> 
> 
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