[hpsdr] 700MHz Full Power Bandwidth S/H Chapt 3

[Lester Veenstra]

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From: Lester Veenstra [mailto:Lester at veenstras.com] 
Sent: Sunday, August 29, 2010 5:58 PM
To: 'Maximo EA1DDO_HK1DX'; 'hpsdr at openhpsdr.org'
Subject: RE: [hpsdr] 700MHz Full Power Bandwidth S/H

 

Chapter 3 

the A/D output for an input of 194 Mhz will be 64 MHz,   

the A/D output for an input of 196 Mhz will be 64 MHz,   

the A/D output for an input of 259 Mhz will be 64 MHz,

and so on to, in the case of the LTC220, past 700 MHz.

 

The important consideration to remember, just as when you used the first
Nyquist region,  you must filter the input to ensure no significant signals
or noise appears at the A/D input in any than other the specific Nyquist
region you are using.

 

The net result is that, in this case, the LTC220 at a sample rate of 130
msps, can be used to A/D convert a band limited signal region as high as 700
MHz.

 

 

 

Lester B Veenstra  MØYCM K1YCM

lester at veenstras.com

m0ycm at veenstras.com

k1ycm at veenstras.com

 

 

US Postal Address:

PSC 45 Box 781

APO AE 09468 USA

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