[hpsdr] Mercury f and f+/- 48KHz

[Bill Tracey]

Check your sampling rate.  Unless you're playing with Phil H's V2 
Mercury code, make sure the sampling rate in Setup->Audio is set for 
192000.   The as shipped from TAPR boards have Mercury firmware that 
only does 192000 sampling ... selecting anything else results in 
aliasing.   The V2 Mercury code getting shaken out supports the 
additional sampling rates.

Cheers,

Bill (kd5tfd)


At 04:12 PM 12/28/2008, Joe Martin K5SO wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
>The signal at frequency f on my Mercury receiver actually consists of
>a combination of signals originating from f, f + 48KHz, and f - 48KHz
>regardless of band selected.  Do I have a strange problem here or is
>the design of Alex such that it should knock these f+/-48 KHz (alias?)
>signals down substantially in later configurations?
>
>Joe K5SO



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