[hpsdr] Spreadsheet Mercury

[David Holman]

A preamp that I have used in the past is the Gali-74
from MiniCircuits,
http://minicircuits.com/pdfs/GALI-74+.pdf. 

Take a look. 

David, KE3HF


--- Henry Vredegoor <henry.vredegoor at gmail.com> wrote:

> ***** High Performance Software Defined Radio
> Discussion List *****
> 
> > Hi Phil and Phil,
>  
> While reading the WiKi page about Mercury, a
> reference was made to a
> spreadsheet, but could not be inserted in the
> wikipage it seems:
>  
> >>
>  
> .....A front end amplifier with a gain of 15 dB and
> a 3 dB noise figure will
> give a final noise figure of 10.3 dB at 30 MHz. (See
> spreadsheet [link here
> when I learn how to do it! VK6APH ]).......
>  
> <<
>  
> Is this available to the public? [  .....Me ?   ;-) 
>  ]
>  
> I tried to understand and follow the calculations on
> this page and was
> trying to make my own spreadsheet, but I am not sure
> if I am right and would
> like to verify my calculations.
>  
> Further I would like to mention a small error /
> annoyance on the page:
>  
> I see a number of question marks [?] on the page
> where I think there should
> be minus [-] signs?
> This makes following the calculations not easier
> also ......  ;-)
>  
> I tried several settings of character codings in IE
> but there was no change.
> ??
>  
> 73's
>  
> Henry.
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