Dixie Mountain (W6/CN-006) SOTA Activation - 12/31/2011
HFTA output for a beam heading of 60 degrees, comparing my low antenna (in red) to a dipole antenna over flat ground and up 1/2 wavelength (in blue). My antenna outperforms the dipole by several dB at low takeoff angles thanks to the downsloping terrain. Low takeoff angles are best for long-distance communications. The bar graph along the bottom shows the relative probability of signals from the U.S. arriving at various takeoff angles. My antenna was running roughly North-South (maximum signal to the East-West) so these comparisons are valid. Unlike at Peavine Peak and Virginia Peak, my antenna was in the flattop dipole configuration as opposed to an inverted-V configuration, so these comparisons at Dixie Mountain are probably the most valid.
HFTAOutputDixieMyAntennaVsDipoleUpHalfWavelengthOverFlatGround60Degrees
- No Comments