[hpsdr] Cyclops project review

[Mike]

Ok, thanks.
I thought maybe this is a good opportunity to add extended RX range to Hermes.


On Jan 7, 2012, at 9:57 PM, Phil Harman wrote:

> Hi Mike,
> 
> Cyclops at present is intended to be board that plugs into the Atlas bus. To use it with Hermes it really depends on how many I/O pins are going to be needed. If we can reduce this to some from of serial bus (I2C or SPI) then its possible.
> 
> It could be used as a VHF/UHF down converter but would need suitable filters at the input to reduce any image signals.  With the highest IF of 55MHz the 70cm filters would need to be quite well designed. The phase noise is not going to be as good as a well designed converter based on a crystal LO.
> 
> 73 Phil...VK6APH
> 


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