NEC-LIST: High Frequency Signal to Noise problem

-----Original Message-----
From: zvi frank
Sent: Monday, January 23, 2006 11:57 AM
To: nec-list_at_robomod.net
Subject:
 
Hallo All,
            I have a problem at H.F. Somebody told me he improved the
S/N of an HF antenna. As far as I understand usually the S/N of an HF
antenna is determined by external noise. This would mean improving the
efficiency of the antenna would not increase the S/N. I suppose if the
antenna was made more directional than one might be able to decrease
noise coming from some directions. Has anyone any comments or experience
with this sort of problem ?
    Thanks in advance,
                             Zvi

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