Specifications - QTM2000
4 Independent Agile QPSK to QAM Transmodulators
RF Input
Frequency
Frequency Step Size
Signal Capture Range
Input Level
Impedance
Input Connector
LNB Supply Voltage (with TM2021 card)
1 MHz
±5 MHz (±15 MHz typical)
-65 to -20 dBm per carrier
75Ohms
F female
13 / 18 VDC at 500 mA, selectable
Demodulation
Decoding
HITS HQ
Code Rate
Symbol Rate
I/Q Format
Digicipher II, DVB-S compliant
Level 1 & 2 (ie QPSK input, 64 QAM output)
1/2, 2/3, 3/4, 5/6, 6/7, 7/8 rates
1 to 45 Msym/sec
Normal/inverted I/Q
Symbol Rate
Rolloff
Coding
Bandwidth
Spectral Inversion
1 to 7.1 Msym/sec, auto selection
13, 15, 18 %
Digicipher II, DVB-S compliant (ITU J83 Annex A and B)
6 MHs
Normal or Inverted
Frequency
Frequency Step Size
Frequency Stability
Output Level
Spurious
Bandwidth
Broadband Noise
Impedance
Connector
550 to 860 MHz (option 2F9)
62.5 kHz
±10 kHz (typical 2ppm)
35 dBmV to 47 dBmV, adjustable
-60 dbc typical (54 to 860 MHz) at +47 dBmV
6 MHz
-66 dBc in 8 MHz bandwidth
75 Ohms
F female
Unit Control
Chassis Configuration
Rack Spacing
Cooling
Operating Temperature
Remote Control Serial Interface
Connector
Power Requirements
Power Consumption
Mounting
Dimensions
Weight
Remote control (RS-485 & 232) via Windows software
4 Independent transmodulators in 1RU
1Uspacing
Integral forced air cooling, side intake, rear exhaust
0 to 40°C (32 to 104°F)
RS232 or RS485 (software selectable)
Dual RJ45
100 to 240 VAC, 50 to 60 Hz
80 Watts
Standard 19" (48.3 cm) 1U (1.75") rack space
19"(w) X 14.25"(d) X 1.75"(h) (48.3 X 36.2 X 4.45 cm)
11 lbs (5 kg)
QTM2020 Card System:
2F1 -Q TM2020 4 Transmodulator Cards, 54 to 550 MHz
2F9 -Q TM2020 4 Transmodulator Cards, 550 to 860 MHz
Custom Configurations available
