UNAOHM EP2500 - Page 9

UNAOHM
EP2500 (Rev. 0)
9
QPSK digital signal demodulator
Parameters To Set
• Symbol Rate: 1.45 to 36 MSymbols/s; 1.0 to 42 MSymbols/s
typical.
• Code Rate:Auto; 1/2; 2/3; 3/4; 5/6; 7/8.
• Spectrum Polarity: Auto (Direct or Inverted).
Frequency Range
950 to 2150 MHz.
CH BER
CH BER (pre Viterbi BER). Level indication from 6x10
-2
to 1x10
-6
.
Resolution 2 x10
-7
.
pV BER
Post Viterbi BER. Level indication from 1x10
-2
to 1x10
-8
.
MER
Modulation Error Ratio. From 5 to 20 dB.
RU
Reed Solomon Uncorrected (errors). Maximum count 65535.
Locking Indication
LOCKED, UNLOCKED, NO CARRIER.
CFO
AFC (Automatic Frequency Control) within ± 3 MHz .
PWR Index
OK, HIGH, LOW indication.
Digital Standard
ETS 300421 compatible.
COFDM digital signal demodulator (as an alternative to QAM card)
Parameters To Set
• Modulation: Auto (16QAM; 64QAM; QPSK).
• Code Rate: Auto (1/2; 2/3; 3/4; 4/5; 5/6; 6/7; 7/8; 8/9).
• Spectrum Polarity: Auto (Direct or Inverted).
• Bandwidth: 7 – 8 MHz.
• Guard Interval: Auto (1/4; 1/8; 1/16; 1/32).
• Operating Mode: Auto (2000, 8000 carriers).
Frequency Range
50 to 860 MHz.
Hierarchy
Non hierarchyc.
CH BER
CH BER (pre Viterbi BER). Level indication from 1x10
-2
to 1x10
-5
.
Resolution 1.5 x10
-6
.
pV BER
Post Viterbi BER. Level indication from 1x10
-2
to 1x10
-7
+ zero.
MER
Modulation Error Ratio. From 6 to 26 dB.
RU
Reed Solomon Uncorrected (errors). Maximum count 65535.
Locking Indication
LOCKED, UNLOCKED, NO CARRIER.
CFO
AFC (Automatic Frequency Control) within ± 0.15 MHz.
PWR Index
OK, HIGH, LOW indication.
Digital Standard
ETS 300744 compatible.
QAM digital signal demodulator (as an alternative to OFDM card)
Parameters To Set
• Symbol Rate: 2.5 to 7 MSymbols/s.
• Modulation: 64, 128, 256, auto.
• Spectrum Polarity: Auto (Direct or Inverted).
Frequency Range
47 to 860 MHz.
CH BER
Channel BER (pre Viterbi BER). Level indication from 0 to 1.
resolution 2 x10
-8
.
MER
Modulation Error Ratio. From 17 to 34 dB.
RU
Reed Solomon Uncorrected (errors). Maximum count 65535.
Locking Indication
LOCKED, UNLOCKED, NO CARRIER.
CFO
AFC (Automatic Frequency Control) within ±3 MHz from nominal
frequency
PWR Index
OK, HIGH, LOW indication.
Digital Standard
ETS 300429 Reed Solomon; ETS 300 Deinterleaving compatible.