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Comtech Radyne DMDVR20 LBST L-Band Satellite Modem

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  • Data Rates 2.4 kbps to 20 Mbps
  • 950 to 2050 MHz L-Band Operation
  • 10 MHz High-Stability BUC Reference
  • LDPC and Turbo Coding


SKU: SATRES-15408

Modulator
Modulation BPSK, QPSK, and OQPSK (8PSK, 16QAM Optional)
L-Band Tuning Range 950 to 2050 MHz in 1 Hz Steps
Impedance 50 Ohm
Connector Female Type N
Return Loss 10 dB Minimum
Output Power 0 to -25 dBm
Output Accuracy ±1.0 dB Over Frequency and Temperature
Output Spectrum Meets IESS 308/309/310 Power Spectral Mask
Spurious -55 dBc In-Band -45 dBc Out-of-Band
Harmonics -45 dBc
On/Off Power Ratio >60 dB
Data Rate Range 2.4 kbps to 20 Mbps in 1 bps steps
Symbol Rate Range 10 Msps Maximum
FEC Viterbi, K=7 at 1/2, 3/4 and 7/8

Trellis 2/3

Turbo Product Code (Optional)

Per IESS 315

BPSK 21/44

QPSK/OQPSK 1/2, 3/4, 7/8

8PSK/16QAM 3/4, 7/8
Scrambler CCITT V.35 (Others Optional)
Outer Encoder Reed-Solomon INTELSAT

Custom (N,K) Reed-Solomon (Optional)
Data Clock Source Internal, External, Rx Recovered
Internal Stability 5 x 10-8
BUC DC Voltage BUC 24 V @ 3.5 A Maximum

BUC 48 V @ 2.8 A Maximum (Optional)
BUC Reference 10 MHz, 3 dBm ± 3 dB
Monitor and Control
Remote RS485/RS232 Selectable
Terminal RS232
Demodulator
Demodulation QPSK, (8PSK, 16APSK Optional)
L-Band Tuning Range 950 to 2150 MHz in 1 Hz Steps
Impedance 75 Ohm
Connector Type F Female
Return Loss 7 dB Minimum
Spectrum ETSI EN 302 307 Compliant
Input Level -60 to -25 dBm
Composite Power <-20 dBm total Input Power
FEC LDPC Concatenated BCH Per ETSI EN 302 307
Normal Blocks 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10
Short Blocks 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9
Decoder Options Per ETSI EN 302 307
Descrambler Per ETSI EN 302 307
Acquisition Range Programmable
LNB DC voltage 13, 15, 18, 20 Selectable
Environmental
Prime Power 100 to 240 VAC, 50 to 60 Hz, 150 Watts Maximum with 10 W BUC
Operating Temperature 0 to 50oC, 95% Humidity, Non-Condensing
Storage Temperature -20 to -70°C, 99% Humidity, Non-Condensing
Physical
Chassis Size 19" W x 19.25" D x 1.75" H

(48.26 cm x 48.89 cm x 4.45 cm)
Weight 8.5 Pounds (3.83 Kg)

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