Datasheet

104
Technical data TDH - QPSK/QAM modules
TYPE DVB-C master
TDH 73oC
DVB-C master
TDH 731C
DVB-C master
TDH 732C
DVB-C master
TDH 733C
Norm
TDT TDT -adj. symbol rate -adj. symbol rate
Part No. 490730 490731 490732 490733
Modulator type QAM QAM QAM QAM
Input frequency range MHz 920 - 2150 920 - 2150 920 - 2150 920 - 2150
Input level *
dBµV 45....84 45....84 45....84 45....84
Return loss dB >10 >10 >10 >10
Aerial input SAT F F F F
Aerial loop-through SAT Yes/F Yes/F Yes/F Yes/F
Demolator
Type QPSK QPSK QPSK QPSK
Symbol rate Mbps 2-40 (SCPC/MCPC) 2-40 (SCPC/MCPC)
Adjustable Adjustable
Viterbi decoder 1/2, 2/3, 3/4, 5/6, 7/8 1/2, 2/3, 3/4, 5/6, 7/8 1/2, 2/3, 3/4, 5/6, 7/8 1/2, 2/3, 3/4, 5/6, 7/8
Reed Solomon decoder 204, 188, t=8 204, 188, t=8 204, 188, t=8 204, 188, t=8
Modulator
Output mode QAM 16, 32, 64,
128, 256
QAM 16, 32, 64,
128, 256
QAM 16, 32, 64,
128, 256
QAM 16, 32, 64,
128, 256
Output control Normal, inverted,
random
Normal, inverted,
random
Normal, inverted,
random
Normal, inverted,
random
Output frequency range MHz
306 - 858 120 - 306 306 - 858 120 - 306
Output level dBµV 97 97 97 97
LNB control 13/18 volt - 0/22 kHz mA 200 200 200 200
Symbol rate Mbaud < 7.0 < 7.0 < 7.0 < 7.0
Roll-off factor % 15 15 15 15
FEC block code RS (204, 188) RS (204, 188) RS (204, 188) RS (204, 188)
Scrambling DVB ETS 300429 DVB ETS 300429 DVB ETS 300429 DVB ETS 300429
Interleaving DVB ETS 300429 DVB ETS 300429 DVB ETS 300429 DVB ETS 300429
Carrier suppression dB >40 >40 >40 >40
C/N dB >38 >38 >38 >38
MER dB >35 >35 >35 >35
IQ imbalance Dgr <1 <1 <1 <1
Output impedance Ohm 75 75 75 75
Return loss (MOD OUT) dB >10 >10 >10 >10
Temperature, operation
o
C -10..+50 -10..+50 -10..+50 -10..+50
Weight - standard module kg 0.45 0.45 0.45 0.45
Dimensions (H x D x W) mm 150 x 230 x 50 150 x 230 x 50 150 x 230 x 50 150 x 230 x 50
Remarks * Digital measuring - DCP With stuffing With stuffing
TDH QPSK to QAM module receives a QPSK channel (TV-program package) located
in the sat-IF band, and remodulates it in QAM format on a 5-9 MHz channel located
within the RF frequency band.
• Output frequency ranges: 120-306 or 306-858 MHz
• Input frequency range: 950-2150 MHz
• Programmable LNB control on each module
• Modulation: 16, 32, 64, 128, 256 QAM
• Adjustable symbol rate (TDH 732 & TDH 733)
• Multi language menu
TDH digital QAM - QPSK to QAM
TDH QAM module