GSS PHDT 1000 H, Инструкция по сборке

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- 38 - PHDT 1000 H
Transmission parameters for DVB-T
at a bandwidth of 8 MHz
Transmission mode 2k 4k 8k
Symbol duration T
S
[µs] 224 448 896
Carrier space ∆ f [kHz]
4.4643 2.232 1.116
(n
carrier
)
theoretical
2048 4096 8192
(n
carrier
)
real
1705 3410 6817
Used bandwidth [MHz] 7.61 7.61 7.61
Total symbol duration
T
GS
[µs]
280 262 238 231 560 504 476 462 1120 1008 952 924
Guard interval T
G
[µs] 56 28 14 7 112 56 28 14 224 112 56 28
T
G
/ T
S
1 /
4
1 /
8
1 /
16
1 /
32
1 /
4
1 /
8
1 /
16
1 /
32
1 /
4
1 /
8
1 /
16
1 /
32
Transmission parameters for DVB-T
at a bandwidth of 7 MHz
Transmission mode 2k 4k 8k
Symbol duration T
S
[µs] 224 448 896
Carrier space ∆ f [kHz] 4.4643 2.232 1.116
(n
carrier
)
theoretical
2048 4096 8192
(n
carrier
)
real
1705 3410 6817
Used bandwidth [MHz]
6.66 6.66 6.66
Total symbol duration
T
GS
[µs]
320 288 272 264 620 576 544 528 1280 1152 1088 1056
Guard interval T
G
[µs]
64 32 16 8 128 64 32 16 256 128 64 32
T
G
/ T
S
1
/
4
1
/
8
1
/
16
1
/
32
1
/
4
1
/
8
1
/
16
1
/
32
1
/
4
1
/
8
1
/
16
1
/
32
Transmission parameters for DVB-T
at a bandwidth of 6 MHz
Transmission mode 2k 4k 8k
Symbol duration T
S
[µs]
224 448 896
Carrier space ∆ f [kHz]
4.4643 2.232 1.116
(n
carrier
)
theoretical
2048 4096 8192
(n
carrier
)
real
1705 3410 6817
Used bandwidth [MHz] 5.71 5.71 5.71
Total symbol duration
T
GS
[µs]
373 336 317 308 767 672 634 616 1493 1344 1269 1232
Guard interval T
G
[µs] 74.7 37.3 18.7 9.3 149 75 37.4 18.6 298.7149.3 74.6 37.3
T
G
/ T
S
1
/
4
1
/
8
1
/
16
1
/
32
1
/
4
1
/
8
1
/
16
1
/
32
1
/
4
1
/
8
1
/
16
1
/
32