[hpsdr] MDS

[Grant Hodgson]

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.


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