[hpsdr] Hermes

[Tony Hagen]

Hello Joe,

That means its recommendable to use a HPF or in other words Alex

Thanks

73s
Tony

From: Joe Martin K5SO 
Sent: Friday, February 21, 2014 11:49 PM
To: Tony Hagen 
Cc: hpsdr at lists.openhpsdr.org 
Subject: Re: [hpsdr] Hermes

Hi Tony,  

Yes, certainly. 

But of course you won’t have any HPF or LPF filtering for the input in that case.   

If you’re using the stand alone Hermes as an IF for a converter that has some image filtering ahead of it it works fine like that.  If, on the other hand, you connect directly to an antenna then you are susceptible to ADC overloading from out-of-band strong signals that may be present at your location anywhere in the 0-60 MHz range, regardless of where you have the Hermes tuned, that’s all.  It’ll work fine but keep in mind that your Hermes ADC is converting signals for everything in the 0-60 MHz range at your location and strong out-of-band signals will affect you much more so than if you had filtering ahead of the Hermes.  

73, Joe K5SO

On Feb 21, 2014, at 10:26 AM, Tony Hagen wrote:


  ***** High Performance Software Defined Radio Discussion List *****


  Hi,

  Is the Hermes Board standalone is capable to receive without the Alex Interfaced


  73s
  Tony
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