Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 4652

c) after time-out and in the absence of RCS codes 1 and 2, control shall return to TRS. 3.1.2.8.6.10 Latitude/longitude coding using compact position reporting (CPR). Mode S extended squitter uses compact position reporting (CPR) to encode latitude and longitude efficiently into messages. The method used to encode/decode CPR shall comply with the equations in Annex 10, Volume III, Part I, Appendix 1 to Chapter 5. 3.1.2.8.7 EXTENDED SQUITTER/NON TRANSPONDER (ES/NT), DOWNLINK FORMAT 18 Note.— This format supports the broadcast of extended squitter ADS-B messages by non-transponder devices, i. e. they are not incorporated into a Mode S transponder. A separate format is used to clearly identify this non-transponder case to prevent ACAS II or extended squitter ground stations from attempting to interrogate these devices. 3.1.2.8.7.1 ES/NT format. The format used for ES/NT shall be a 112-bit downlink format (DF = 18) containing the following fields: The PI field shall be encoded with II or SI equal to zero. 3.1.2.8.7.2 Control field. This 3-bit (6-8) downlink field in DF = 18 shall be used to define the format of the 112-bit transmission. Code 0 = ADS-B Code 1 to 7 = Reserved Coding signifies that barometric altitude shall be reported in the ACS (3.1.2.8.6.3.1.2) of transponder register 05 {HEX}. signifies that navigation-derived altitude shall be reported in the ACS (3.1.2.8.6.3.1.2) of transponder register 05 {HEX}. CF:3 AA:24 ME:56 PI:24 Field Reference DF downlink format 3.1.2.3.2.1.2 CF control field 3.1.2.8.7.2 AA address, announced 3.1.2.5.2.2.2 ME message, extended squitter 3.1.2.8.6.2 PI parity/interrogator identifier 3.1.2.3.2.1.4 2007/70/II. szám Annex 10 — Aeronautical Telecommunications Volume IV 28/11/02 3-60 3.1.2.8.7.3 ES/NT squitter types 3.1.2.8.7.3.1 Airborne position squitter. The airborne position type ES/NT shall use format DF = 18 with the format for register 05 {HEX} as defined in 3.1.2.8.6.2 inserted in the ME field. 3.1.2.8.7.3.2 Surface position squitter. The surface position type ES/NT shall use format DF = 18 with the format for register 06 {HEX} as defined in 3.1.2.8.6.2 inserted in the ME field. 3.1.2.8.7.3.3 Aircraft identification squitter. The aircraft identification type ES/NT shall use format DF = 18 with the format for register 08 {HEX} as defined in 3.1.2.8.6.2 inserted in the ME field. 3.1.2.8.7.3.4 Airborne velocity squitter. The airborne velocity type ES/NT shall use format DF = 18 with the format for register 09 {HEX} as defined in 3.1.2.8.6.2 inserted in the ME field. 3.1.2.8.7.3.5 Event-driven squitter. The event-driven type ES/NT shall use format DF = 18 with the format for register 0A {HEX} as defined in 3.1.2.8.6.2 inserted in the ME field. 3.1.2.8.7.4 ES/NT squitter rate 3.1.2.8.7.4.1 Initialization. At power up initialization, the non-transponder device shall commence operation in a mode in which it does not broadcast any squitters. The non-transponder device shall initiate the broadcast of ES/NT squitters for airborne position, surface position, airborne velocity and aircraft identification when data are available for inclusion in the ME field of these squitter types. This determination shall be made individually for each squitter type. When ES/NT squitters are broadcast, transmission rates shall be as indicated in 3.1.2.8.6.4.2 to 3.1.2.8.6.4.6. Note 1.— This suppresses the transmission of extended squitters from aircraft that are unable to report position, velocity or identity. If input to the register for squitter types stops for 60 seconds, broadcast for this extended squitter type will cease until data insertion resumes. Note 2.— After timeout (3.1.2.8.7.6) this squitter type may contain an ME field of all zeros. 3.1.2.8.7.4.2 Delayed transmission. ES/NT squitter transmission shall be delayed if the non-transponder device is busy broadcasting one of the other squitter types. 3.1.2.8.7.4.2.1 The delayed squitter shall be transmitted as soon as the non-transponder device becomes available. 3.1.2.8.7.5 ES/NT antenna selection. Non-transponder devices operating with antenna diversity (3.1.2.10.4) shall transmit ES/NT squitters as follows:

Source: https://magyarkozlony.hu/hivatalos-lapok/4c6310a937d14bac566ee9c9d944896656c292dd/dokumentumok/5a6ac3c6db12e692ae41096677ad5f072d2cc9f3/letoltes