
Specifications
Version 00b
MTS400 Series Performance Verification and Specifications Technical Reference
5 list electrical characteristics of the QPSK/8PSK card.
Table 1−4: QPSK/8PSK interface card electrical characteristics with a QPSK
input
Characteristic
Description
Input frequency range
950 MHz to 2150 MHz with 1 MHz step size
Input signal amplitude range
−60 dBm to −30 dBm for a CBER of <1e
−6
Modulation format
QPSK in accordance with ETSI EN 300 421
Modulated baud rate
1 MBaud min, 30 MBaud max
Viterbi values supported
1/2, 2/3, 3/4, 5/6, 6/7, 7/8
FEC
In accordance with ETSI EN 300 421
Turbo viterbi values supported
1/2, 2/3, 3/4, 5/6, 7/8
Turbo FEC
Turbo code
Connector style
F-style
Input termination impedance
75
nominal
Input return loss
4 dB min, 950 MHz to 2050 MHz
LNB supply voltage
Selectable; 13.0 V
"
1.5 V or 18.0 V
"
1.5 V, with
100
, 5 watt resistor load
LNB supply maximum current
200 mA maximum
LNB 22 kHz signaling frequency
17.6 kHz min, 26.4 kHz max (22 kHz
"
20%)
LNB 22 kHz signaling amplitude
600 mV p-p with a 100
load
Ultimate modulation error ratio (with
equalizer)
26 dB with an equalizer
Table 1−5: QPSK/8PSK interface card electrical characteristics with an 8PSK
input
Characteristic
Description
Input frequency range
950 MHz to 2150 MHz with 1 MHz step size
Input signal amplitude range
−60 dBm to −30 dBm for a CBER of <1e
−6
Modulation format
Turbo 8PSK
Modulated baud rate
1 MBaud min, 30 MBaud max
Turbo viterbi values supported
2/3, 3/4 (2.05), 3/4 (2.1), 5/6, 8/9
Turbo FEC
Turbo code
Connector style
F-style
Input termination impedance
75
nominal
QPSK/8PSK Card
Characteristics