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Radio propagation: Difference between revisions
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* realistic radio reception of VOR stations, making radio navigation more interesting and realistic in hilly/mountainous terrain. | * realistic radio reception of VOR stations, making radio navigation more interesting and realistic in hilly/mountainous terrain. | ||
* realistic range for DME equipment, reception is now very different to VOR signals due to the very high frequency used. You could have full deflection on the NAV display and no DME data until you pass a minor obstruction. | * realistic range for DME equipment, reception is now very different to VOR signals due to the very high frequency used. You could have full deflection on the NAV display and no DME data until you pass a minor obstruction. | ||
* realistic reception of TACAN stations, including mobile stations (AI tankers etc.). Conditions similar to DME. | |||
* mostly realistic radio reception of localizer and glideslope signals, making landings more interesting for certain airports. | * mostly realistic radio reception of localizer and glideslope signals, making landings more interesting for certain airports. | ||
* configuration and realistic reception of radio beacons located anywhere in the 3D world, while presenting calculated signal values according to different official guidelines, including but not limited to the FAA. | * configuration and realistic reception of radio beacons located anywhere in the 3D world, while presenting calculated signal values according to different official guidelines, including but not limited to the FAA. | ||
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* point-to-point path loss calculations over rough terrain using the ITM library for air traffic control stations to pilot communication. Also AI to pilot reception. | * point-to-point path loss calculations over rough terrain using the ITM library for air traffic control stations to pilot communication. Also AI to pilot reception. | ||
* point-to-point path loss calculations using the ITM library for VOR/Localizer and Glideslope stations <ref>http://www2.rohde-schwarz.com/file_15494/1MA193_0e.pdf</ref>. | * point-to-point path loss calculations using the ITM library for VOR/Localizer and Glideslope stations <ref>http://www2.rohde-schwarz.com/file_15494/1MA193_0e.pdf</ref>. | ||
* point-to-point path loss calculations using the ITM library for DME stations. | * point-to-point path loss calculations using the ITM library for DME stations <ref>http://www.faa.gov/air_traffic/publications/atpubs/aim/aim0101.html</ref>. Can be affected by some issues with stations sunk in the ground (request test info). | ||
* point-to-point path loss calculations using the ITM library for TACAN stations, including mobile stations (AI tankers etc.) <ref>https://en.wikipedia.org/wiki/Tactical_air_navigation_system</ref>. Can be affected by some issues with stations sunk in the ground (request test info). | |||
* for VHF/UHF stations beyond a reasonable terrain loading distance, automatic transition to path loss calculation over a smooth round earth using alternative free space signal attenuation equations | * for VHF/UHF stations beyond a reasonable terrain loading distance, automatic transition to path loss calculation over a smooth round earth using alternative free space signal attenuation equations | ||
* RF link budget calculations using transmitter power, receiver sensitivity, antenna gain and height above terrain, taking into account typical values from various specifications | * RF link budget calculations using transmitter power, receiver sensitivity, antenna gain and height above terrain, taking into account typical values from various specifications | ||
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====Features which still need to be implemented==== | ====Features which still need to be implemented==== | ||
* | * Figure out what to do about VOR/DME/TAC stations sunk into the ground? Possible bug affecting them, maybe only on custom terrain. | ||
* reception of ACARS ground messages via VHF radios | * reception of ACARS ground messages via VHF radios | ||
* usage of weather simulation and atmospheric conditions which affect radio propagation: tropospheric ducting, cloud backscatter etc. | * usage of weather simulation and atmospheric conditions which affect radio propagation: tropospheric ducting, cloud backscatter etc. | ||