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The various UHF and Hi-VHF Loop Antenna designs I've analyzed thus far are BROADBAND
"resonant" loops, where the diameter is about one wavelength:
http://www.imageevent.com/holl_ands/loops

SMALL Loop Antennas operate quite differently and are typically NARROWBAND. Note that
the suppression of LOCALLY generated noise ONLY applies to sources in the NEAR-FIELD,
which is less that a wavelength from the antenna [That's under 17-feet for Ch2. SORRY!!!!!].
They are more suited for suppressing noise coming from within your home in the HF band,
where the "near field" is much larger:
http://www.w8ji.com/magnetic_receiving_loops.htm [Loop WORSE than Dipole, except when VERY CLOSE]
http://www.aa5tb.com/loop.html [Lots of info re Small Loop Antennas]
http://www.vlf.it/octoloop/rlt-n4ywk.htm [Simplified Loop Antenna Theory & Calculations]
http://www.66pacific.com/calculators/small_tx_loop_calc.aspx [Small Loop On-Line Calculator - TRY IT!!!!]
http://sidstation.loudet.org/antenna-theory-en.xhtml [Small Loop Antenna Loop Theory]
http://sidstation.loudet.org/antenna-noise-en.xhtml [Small Loop Int/Ext SNR Calculation]
 
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