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ARE THE HF BANDS OPEN TODAY?

Updated: Apr 23

If So to Where??



  • K0UO is using Ace HF Pro and IONSUM, which are computer programs using the output of the IONCAP prediction method to determine the most suitable frequency band and required antenna gain under specific averaged conditions. The acronym stands for IONCAP SUMmary. Propagation predictions form an essential tool in the management of a HF wanting to work DX Stations. The data from such predictions are used to specify the types and operating frequency ranges required to work the DX by allowing for changes in the antennas take off angle to achieve maximum signal to the desired direction. Which it is used to contact DX stations utilizing both long path or short path on F layer, or to contact North American stations on daytime with high D Layer absorption (160, 80, 60 & 40 meters). Some reflection can be obtained from the D region, but the strength of radio waves is reduced; this is the cause of the marked reduction in the range of radio transmissions in daytime on the lower bands.

  • K0UO uses real time ionosonde (vertical HF RADAR ionospheric height-finder) data and ACE-HF Network, by Long Wave Inc which allows K0UO to analyze the entire HF spectrum using a single fixed transmitter location and multiple receive locations.  The 64 Bit application has enhanced features and uses Google Earth and Google Maps to provide detailed HF Area Coverage Maps. K0UO uses, and has been part of real time GPS observables network to measure properties of the electron density such as the total electron content (TEC). The TEC is a measure of the total number of electrons that would be contained in a cylinder that extends up vertically above a given point on the earth all the way through the ionosphere K0UO uses, and is part of a real time GPS network to measure properties of the electron density such as the total electron content (TEC). The TEC is a measure of the total number of electrons that would be contained in a cylinder that extends up vertically above a given point on the earth all the way through the ionosphere.

  • The ACE HF Pro, by Long Wave Inc allows K0UO to analyze the entire HF spectrum using a single fixed transmitter location and multiple receive locations. The station uses ionosonde (vertical HF RADAR ionospheric height-finder) data.

  • HF Propagation modeling for stationary TX with positional RX sites

  • Has the ability to create a circuit probability area coverage map

  • Uses VOACAP and IONCAP Ionospheric Model

  • Antenna performance analysis capability for all of K0UO's system with preset antenna models

  • SEE CHARTS BELOW

                  








Remember,  "The Best antenna is one that is, In the Air and on the Air"!

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