[hpsdr] MDS

KA2WEU at aol.com KA2WEU at aol.com
Fri Aug 11 08:44:43 PDT 2006


 
This is somewhat inconsistent with my measurements with a beam on 17 to 10  
m. I would loook for a sensitivity of a NF of 6Dm...
 
73 de Ulrich, N1UL
 
 
 
In a message dated 11.08.2006 14:23:27 Westeuropäische Normalzeit,  
grant at ghengineering.co.uk writes:

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

John

Many thanks for posting this - I've never seen it  before.  Please could you
post the data for 160m and 6m as well if you  have it, to complete the list?

regards

Grant  G8UBN

>Minimum atmospheric noise levels (above thermal noise) for  the HF bands in
the quietest locations at the quietest time of the year  are:

>80 m  38 dB
>40 m  33 dB
>20 m  28  dB
>15 m  23 dB
>10 m  18 dB

>This is  according to CCIR surveys. The receiver NF should be 6-10 dB  lower.




-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20060811/30c5ad2e/attachment-0004.htm>


More information about the Hpsdr mailing list