Standardized DVB-T2 RF specifications - DigitalEurope

Test
No
Pulses per
burst
Figure 3 – Definition of the impulse interference test pattern
Burst 1 Burst 2
Burst Du ration
Burst repetition period
1000ms DVB-T2
Table 16 – DVB-T2 Impulse interference test patterns
Minimum/maximum
pulse spacing
μs
Burst
duration
μs
Minimum/maximum
burst duration
μs
Burst
repetition
period
ms
7 4 15 35 1 45.25 105.25 1000
8 40 0.5 1 10 19.75 39.25 1000
9 80 0.5 3 20 39.75 237.25 1000
10 400 1 30 100 399.25 11,970.25 1000
11 4,000 0.5 3 1,000 1,999.75 11,997.25 1000
12 40,000 0.5 1 10,000 19,999.75 39,999.25 1000
Table 17 - Minimum I/C values for DVB-T2 impulsive noise tests
Mode Expected I/C (dB) for picture failure (PFP2)
Test Pattern Number
7 8 9 10 11 12
5 – 32KN 256Q 3/5 1/32 PP4 8MHz 28.7 18.7 15.7 5.7 -4.8 -16.8
6 – 32KN 256Q 3/5 1/8 PP2 7MHz 29.1 19.1 16.1 6.1 -4.4 -16.4
7 – 32KE 256Q 2/3 1/128 PP7 8MHz 27.7 17.7 14.7 4.7 -5.8 -17.8
8 – 32KE 256Q 2/3 1/16 PP4 8MHz 27.2 17.2 14.2 4.2 -6.3 -18.3
9 – 32KE 256Q 3/4 1/32 PP6 8MHz 25.7 15.7 12.7 2.7 -7.8 -19.8
12- 3- Test requirement and procedure
Pulse Duration 250ns (fixed)
The number of pulses per burst is defined, but the spacing between pulses is
allowed to vary randomly between specified maximum and minimum values.
The minimum I/C for picture failure point PFP2 should be obtained when the channel
contains gated Gaussian noise as defined in Table 16, for the modes shown in Table 17.
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