[hpsdr] 700MHz Full Power Bandwidth S/H

[Maximo EA1DDO_HK1DX]

Hi,

Now I am beggining to understand how it really works...

I found that statement in internet;

Nyquist requirement to sample at two times the highest frequency of
the input signal is for avoiding aliasing of baseband signals.
Bandwidth limited signals (like radio signals) don’t have frequency
components near DC. That being the case, the type of aliasing that the Nyquist Sample Rate
attempts to avoid isn’t a problem.
Shannon’s Information Theorem states that all of
the information in a bandwidth limited signal can be captured with a sampling rate as low as
twice the signal’s bandwidth.
In other words, a 500 MHz carrier signal with a 30kHz bandwidth can be sampled at a
frequency as low as 60kHz and still capture all of the signal’s information


If the LTC2208 is able to sample up to 700 MHz so we could capture any 60 MHz bandwith between 1 and 700 MHz with the Mercury card, not just HF.
Is that true?
Is there any way to say to Mercury what 60 MHz to sample?

Thank you

73, Maximo - EA1DDO


From: roland.etienne at free.fr
To: ea1ddo at hotmail.com
Subject: RE: [hpsdr] 700MHz Full Power Bandwidth S/H
Date: Sun, 29 Aug 2010 15:58:31 +0200























Hi Maximo,

 

This means that it can be used with
signals uo to 700 Mhz, but of course with a 130 Mbps maxi of sampling, you can
expolit a 65 Mhz band pass up to 700 Mhz, for example 640 – 700 Mhz is
possible.

 

73, Roland f8chk.

 

 











De : hpsdr-bounces at lists.openhpsdr.org [mailto:hpsdr-bounces at lists.openhpsdr.org] De la part de Maximo EA1DDO_HK1DX

Envoyé : dimanche 29
août 2010 14:09

À :
hpsdr at openhpsdr.org

Objet : [hpsdr] 700MHz Full
Power Bandwidth S/H



 

Hi,



There is something that I do not understand. 

If you see the LTC2208 specs at;



http://www.linear.com/pc/productDetail.jsp?navId=H0,C1,C1155,C1001,C1150,P13693



There is a feature that I do not understand the meaning; 700MHz Full Power Bandwidth S/H



Any one is able to explaint it to me?



Thank you



73, Maximo - EA1DDO



 		 	   		  
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