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Dear Reg (G4FGQ):
I note with interest that your note was written in the early afternoon. The subject of my communication is: small (much smaller than a wavelength) - non-resonant (input impedance almost entirely inductive if one looks into a single opening in the loop) - horizontal - loop antenna (no substances with significant magnetic properties are in the vicinity of the loop antenna) - used to receive incident EM waves (which have both E and H components). SNRHL receiving antennas I do not know the definition of a "magloop." Apparently, such a beastie comprises a resonant loop antenna. No knowledgeable person would disagree that a single tuned network with a Q of 1000 is "narrow." My interest in SNRHL receiving antennas comes from an interest in practical HF receiving antennas that are resistive to types of noise that appear only to be present at isolated, open, rural, otherwise-low-noise sites. The noise involved does not occur in urban areas or even rural sites with many trees. Consider some of the excellent wine from Michigan this evening. This state, with a coastline almost the same length as that of the island of Great Britain, produces some excellent products for your enjoyment. 73 Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "Reg Edwards" wrote in message ... The intermod performance of a receiving pre-amplifier is of no consequence with a magloop. The Q and selectivity (of the order of 1000) of the loop at the wanted frequency easily reject local high-power MF broadcast frequencies. On 160m, It's difficult to hear any stations only 3 kHz away from the wanted frequency. ---- Reg. |
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