[hpsdr] New HPSDR card for VHF/UHF ?

[Mike]

While contesting is fun, there are also other activities on vhf & uhf.
One of them is of course satellite work and that needs full duplex.
Also, APRS, Dstar, EME, FM, etc...

Does this board have to be such a high performance part?


On Sep 6, 2010, at 6:46 PM, Grant Hodgson wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> More numbers, opinions, speculation, dreams...
>
> I did some system calculations for a design of a 2m direct- 
> conversion variant
> of the microwave SDR (uWSDR) project which I presented at the RSGB VHF
> convention in 2009.  This indicates that a system IIP3 of +15dBm is  
> achievable
> with a system NF of 2dB.  That's ~100dB spurious-free dynamic  
> range, or ~150dB
> blocking dynamic range.
>

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