Mode S has been standardised by ICAO for many years. Mode S is a Secondary Surveillance Radar technique that permits selective interrogation of aircraft by means of the unique 24-bit address, thus avoiding the risk of confusion or mis-identification due to overlapping signals. This address is often referred to as ModeS or Hex code. The fundamental concept of Mode S is the assignment to each aircraft of a unique ICAO 24-bit address. Introduction to ModeSAll the products make use of ModeS/ADS-B data transmitted at 1090 MHz.
Any feedback on this document would be most welcome and can be posted on the Radarspotters forum. Whilst every effort has been made to verify the information in this document, it may contain errors and/or omissions which will be immediately corrected where appropriate. All trademarks are acknowledged as belonging to their respective owners. Finally, this isnt meant to be a recommendation or endorsement of any product and the author cannot accept any responsibility for any consequences resulting from use of this document. Forums are often a good place to compare customer feedback and ask questions. Try and gauge the build quality and reliability of the receiver as well as product support. Please visit the manufacturers websites and forums and supplier independent ones such as Radarspotters. Ideally each product should be taken for a test drive, either at a dealer or with a friend. Prospective purchasers should not rely entirely on this Guide. The Aurora Eurotech information has been provided by the supplier and has not been independently verified. Where possible, the feature lists have been verified with product suppliers and customers. This high-level comparative Guide is intended to help potential purchasers understand the differences between each product and the associated software. A fourth, the Aurora Eurotech, had been announced but not release. 13Īt the time of writing (March 2010) there are three hobbyist virtual radar receivers on the market. The original Check-List and other Guides can be found on the Radarspotters Forum at:ĬontentsIntroduction to ModeS.
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