Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 4627

b) control codes for an uplink ELM. DF KE ND MD AP Field Reference DF downlink format 3.1.2.3.2.1.2 spare — 1 bit KE control, ELM 3.1.2.7.3.1 ND number of D-segment 3.1.2.7.3.2 MD message, Comm-D 3.1.2.7.3.3 AP address/parity 3.1.2.3.2.1.3 2007/70/II. szám Annex 10 — Aeronautical Telecommunications Volume IV 28/11/02 3-46 3.1.2.7.4 MULTISITE UPLINK ELM PROTOCOL 3.1.2.7.4.1 Multisite uplink ELM reservation. An interrogator shall request a reservation for an uplink ELM by transmitting a surveillance or Comm-A interrogation containing: DI = 1 IIS = assigned interrogator identifier MES = 1 or 5 (uplink ELM reservation request) Note.— A multisite uplink ELM reservation request is normally accompanied by an uplink ELM reservation status request (RSS = 2). This causes the interrogator identifier of the reserved site to be inserted in the UM field of the reply. 3.1.2.7.4.1.1 Protocol procedure in response to this interrogation shall depend upon the state of the C-timer which indicates if an uplink ELM reservation is active. This timer shall run for TR seconds. Note 1.— The value of TR is given in 3.1.2.10.3.9.

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