Comtech EF Data DST-C C-Band Single Channel Per Carrier VSAT System
Complete C-Band SCPC VSAT terminal
C-Band Digital Satellite VSAT Terminal System
This product has been designated end of life by the manufacturer. Please contact us for info on a suitable replacement.
Comtech EF Data DST-C is a fully integrated single thread Single Channel Per Carrier (SCPC) Very Small Aperture Terminal (VSAT) system that's specifically designed to provide communications via satellite between single and/or multi site locations.

The DST-C system is comprised of three major components:
Block Up Converter (BUC) is a weatherproof unit including an integral L-Band up converter and amplifier.
Low Noise Block Converter (LNB) is a low noise receive element with an L-Band interface.

The Indoor Unit (IDU) is a complete, variable data rate modem with a high stability reference. It includes Outdoor Unit (ODU) power supplies for the BUC and LNB in an integrated 1RU package. The TX and RX IF are L-Band.
Specifications
Transmit Characteristics
Frequency Range 5.850 to 6.425 GHz
Frequency Resolution 100 Hz
Max. Power (P1 dB)
2 W
5 W
10 W
+33 dBm at 25_C
+37 dBm at 25_C
+40 dBm at 25_C
Power Resolution 0.1 dB steps
Power Stability
(Over Temp.)
4 dB p-p typical w/o Power Leveling
1 dB p-p typical with Power Leveling
Spurious (Not Intermods) _ -15 dBm/4 kHz
Spectral Re-growth
(Pout=6 dB below P1dB)
-33 dBc
TX Phase Noise (DSB) 2.8 RMS integrated 100 Hz to 1 MHz
Frequency Stability 0.02 ppm
Receive
Input Frequency Range 3.625 to 4.200 GHz
Frequency Resolution 100 Hz
Noise Temperature _35_K (typical @ 25_C [77_F])
RX Image Rejection 45 dB, minimum
Environmental and Physical
ODU - BUC
Operating Temperature -40_ to +55_C (-40_ to +131_F)
Operating Humidity 0 to 100% RH
Storage Temperature -50_ to +80_C (-58_ to +176_F)
Connectors (In/Out) Type N/CPR-137G
Weight 15 lbs. (6.8 kg) typical
ODU - LNB
Operating Temperature -40_ to +55_C (-40_ to +131_F)
Operating Humidity 0 to 100% RH
Storage Temperature -50 to +80_C (-58_ to +176_F)
Connectors (In/Out) CPR-229C/Type N
Weight 2 lbs. (0.9 kg) typical
IDU
Operating Temperature 0 to 50_C (32_ to 122_F)
Operating Humidity Up to 90%, non-condensing
Prime Power 85 to 264 VAC, 47 to 63 Hz,
150 W max.
Remote Control Specifications
Serial Interface EIA-232 or EIA-485 (2 or 4 wire)
M&C Items:
TXFreq.TXPower
Scrambler On/Off Plesiochronous Buffer
Data Rate Select Data Loopback
Power Supply Voltages FSK On/Off
RX Freq. RX Carrier Detect
RX Signal Level Transmitter On/Off
Fault Status IF Loopback (L-Band)
Raw Error Rate Error Threshold Alarm
Configuration Retention
Available Options
Modem Options (See modem datasheet for complete details):
ODU Options:
Variable Data Rate
OQPSK, 8-PSK, or 16-QAM
AsymmetricalLoopTiming
2 x ADPCM Audio in 64 Kbps
IBS
Add Viterbi or Sequential
Decoder
Turbo Product Codec
Concatenated Reed-Solomon
Codec
G.703 Interface with DB-9 and
BNC for Closed Network
(requires OH card)
Async/AUPC, with 50 Pin D
Connector (requires OH card)
ODU/BUC power supply for BUC
(24VDCat 100 W), 2 and 5 W
BUC
ODU/BUC power supply for
BUC (48VDCat 150 W),
10 W BUC
25 Pin Female D Connector with
EIA-530 (EIA-422),
EIA-232 and V.35
LNB: 3.625 to 4.200 GHz
LNB with external reference or
internal _ 3 ppm
LNB Type N or Type F connector
Mounting Kits
TX Reject Filter
BUC power 2 W (24VDC)
BUC power 5 W (24VDC)
BUC power 10 W (48VDC)
IFL Cables (cables and connectors)
BUC with Power Leveling and
FSK communications
Satellite internet connectivity, SCPC Data & Voice links, cellular backhaul