Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 2155

2. The intended minimum air-to-air ranges are for high-density air traffic environments. Larger air-toair ranges will be achieved in low-density air traffic environments. Table 12-2. UAT transmit spectrum Frequency offset from centre Required attenuation from maximum power level (dB as measured at the PMP) All frequencies in the range 0 – 0.5 MHz All frequencies in the range 0.5 – 1.0 MHz Based on linear* interpolation between these points 1.0 MHz All frequencies in the range 1.0 – 2.25 MHz Based on linear* interpolation between these points 2.25 MHz All frequencies in the range 2.25 – 3.25 MHz Based on linear* interpolation between these points 3.25 MHz * based on attenuation in dB and a linear frequency scale Part I Annex 10 — Aeronautical Communications I-12-13 22/11/07 Table 12-3. Standard UAT receiver rejection ratios Frequency offset from centre Minimum rejection ratio (Undesired/desired level in dB ) –1.0 MHz +1.0 MHz (±) 2.0 MHz (±) 10.0 MHz Note.— It is assumed that ratios in between the specified offsets will fall near the interpolated value. Table 12-4. High-performance receiver rejection ratios Frequency offset from centre Minimum rejection ratio (Undesired/desired level in dB) –1.0 MHz +1.0 MHz (±) 2.0 MHz (±) 10.0 MHz Table 12-5. Ground uplink interleaver matrix RS Block MDB Byte # FEC Parity (Block/Byte #) A … A/1 … A/19 A/20 B … B/1 … B/19 B/20 C … C/1 … C/19 C/20 D … D/1 … D/19 D/20 E … E/1 … E/19 E/20 F … F/1 … F/19 F/20 Note.— In Table 12-5, message data block Byte #1 through #72 are the 72 bytes (8 bits each) of message data block information carried in the first RS (92,72) block. FEC parity A/1 through A/20 are the 20 bytes of FEC parity associated with that block (A). Annex 10 — Aeronautical Communications Volume III 22/11/07 I-12-14 FIGURES FOR CHAPTER 12 Notes.—

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