[SI-LIST] Re: AW: GRUNDIG 75-ohm antenna assembly...
- From: "Ingraham, Andrew" <a.ingraham@xxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 19 Jan 2004 09:39:08 -0500
Some people use shielded loops for reception in the MF and HF frequency
ranges. They have some advantages for noise reduction, including a "null"
that can be aimed at interfering sources. And they are physically smaller
than a full size dipole.
In this frequency range, atmospheric and man-made noise tends to dominate,
so for reception, antenna efficiency is usually less important than it would
be for transmitting. Lousy antennas can work OK. Picking one that reduces
noise or signals you don't want to receive, may be more important than
having a "proper" full size or matched antenna.
Regards,
Andy
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