[hpsdr] NOISE FLOOR

[Dominique DEHAYS]

Hi all ,

 

if it is for HF bands , there is no reason to get a better NF as the natural noise on those bands is much higher , there will be however a possible improvement of strong signals performances by adding a attenuator instead.

73

Dom

 

 

 

 

> Message du 18/01/19 03:33
> De : "Scott Traurig" 
> A : "Bob Stricklin" 
> Copie à : "hpsdr at lists.openhpsdr.org" 
> Objet : Re: [hpsdr] NOISE FLOOR
> 
> ***** High Performance Software Defined Radio Discussion List *****






Bob,

>
Do you have a suggestion for an HF preamp with better NF performance?

>
73,

>
Scott/w-u-2-o

>

>

On Thu, Jan 17, 2019 at 9:12 PM Bob Stricklin  wrote:
>

> DC6NY’s comment about the first amp setting the NF is correct and the reason people add their own external preamp with better specs to improve performance. The NF of 6dB reported by W-U-2-O is high and can be improved adding a preamp which will become the first amp.
> 
> Bob N5BRG
>





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