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X -40
Lower bound
Amplitude response
Normalized frequency (dB
- -
- -
- -
- -
- -
- A
- -
-0.05 -3
-0.05 -3
- -
- -
-
- A
- -
- -
- I
-
1. The mask shall be defined by drawing straight lines through the above pints where frequencies are normalized to
the channel rate, and the amplitude is normalized to 0 dB at a frequency of 0.
2. X is 35 kHz. For larger frequency offsets the spurious requirements of 4.2.3.5.6 apply.
Note.- This mask is illustrated in the guidance material contained in Atiachment A lo Part I of Annex 10,
Volume IIT.
Annex 10 - Asronautical Telecontmunications
Table 4-8. Demodulator performance
---- --
Channel type Required BER
I P: 0.6, 1.2 and 2.4 kbitsis 10" 7.3 1
I R,T: 0.6, 1.2 and 2.4 kbitsls 1 0-l 7.5 I
I
P: 4.8 and 10.5 kbitsfs 1 0" 5.4
R,T: 10.5 kbitsls 1 u5 5.7
I C: 5.25 kbitsls
I
I C:
6.0 kbits/s
I C;
10.5 kbitsls, 10 kHz'
C: 10.5 kbitsls, 7.5 k ~ z '
C: 21.0 kbitsls
I 1. EJN, is the ratio of the average energy transmitled per channel bit period to !he 1
noise power spectral density. I
2. Channel spacing. I
Table 4-9. Channel rates
i Applicable channels
Channel rates (kbitsls) I AES receive AES transmit
Table 4-10. P channel information field components
I
Channel rate (kbitsls) I
0.6 1.2 1.4 4.8 10.5
I
I Number of bits
Number of interleaver blocks
Number of SUs/interleaver block
1152 1152 1152 2304 4992
3 L-I I 1 1
2 3 6 12 26 1
Annex 10 - Aeronautical Telecommunications Volume 1Zl
Table 4-11. P channel' interleaver structure
I Channel rate (kbitsis) I
1 Interleaver columns 1 6 9 I8 36
Table 4-12. R and T channel preamble structure
Channel rate (kbitsls) I
Unmodu lated carrier (equivalent bit periods) 126 78
Modulated bits 74 74 256
Table 4-13. T channel interleaver structure
Total
Channel rate (kbitds)
0.6 1.2 2.4 10.5
224 200 152 504
lnterleaver columns:
first block
subsequent blocks
1. The number of interleaver columns is variable from 8 to 95 in steps of 3 and is chosen to march the amount of
data.
Table 4-14. C channel preamble structure
Channel rate (kbitsls)
6.0 10.5 21.0
Unmodulated carrier (equivalent bit periods)
Modulated bits
Total
80 96 160 336
128 1 44 256 504
208 240 416 840
Annex 10 - Aeronautical Telecommunications
Table 4-15. SNPDU type identifier encoding
Code
Bits
654321
000000
000001
000010
000011
000100
000101
000110
OM3111
001 DO0
001001
OClOlO
001011
001 lXX
01 0000
010010
01OOXl
0101XX
011000
011010
OlllXO
OllXXl
100000
1M3001
1M3010
100011
100100
100101
100110
100111
101XXX
110000
110001
110010
110011
110100
110101
11011X
111000
111001
111010
111011
llllox
111110
111111
SNPDU TYPE
(refer to Figures 4-13 through 4-24 SNPDU format)
CONNECTION REQUEST, NO CALLING NSAP ADD., NO CALLED NSAP ADD., NO FACILITY FIELD. NO RESTRICTION ON RESPONSE
CONNECTION REQUEST, NO CALLING NSAP ADD., NO CALLED NSAP ADD.. WITH FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION REQUEST, NO CALLING NSAP ADD., WITH CALLED NSAP ADD., NO FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION REQUEST, NO CALLING NSAP ADD., WITH CALLED NSAP ADD., WITH FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION REQUEST, WITH CALLING NSAP ADD., NO CALLED NSAP ADD., NO FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION REQUEST, WITH CALLING NSAP ADD., NO CALtED NSAP ADD., WITH FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION REQUEST. WITH CALLING NSAP ADD., WITH CALLED NSAP ADD., NO FACILITY FIELD, NO RESTRIC-LION ON RESPONSE
CONNECTION REQUEST, WITH CALLING NSAP ADD., WITH CALLED NSAP ADD., WITH FACILITY FIELD, NO RESTRICTION ON RESPONSE
CONNECTION CONFIRM, NO CALLED NSAP ADD., NO FACILITY FIELD
CONNECTION CONFIAM, NO CALLED NSAP ADD.. WITH FACILITY FIELD
CONNECTION CONFIRM, WITH CALLED NSAP ADD., NO FACILITY FIELD
CONNECTION CONFIRM, WITH CALLED NSAP ADD., WITH FACILITY FIELD
SPARES
CONNECTION RELEASED, NO CALLED NSAP ADD., NO FACILITY FIELD
CONNECTION RELEASED, WITH CALLED NSAP ADD., NO FACILITY FIELD
SPARES
SPARES
CONNECTION RELEASE COMPLETE
SPARE
SPARES
SPARES
CONNECTION REQUEST, NO CALLING NSAP ADD., NO CALLED NSAP ADD., NO FACILITY FIELD, WITH RESTRICTION ON RESPONSE
 
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