CSS-905A can be factory set or user configured over a range of operating parameters, including radio frequency (RF) output power, frequency selection, input data rates, and Advanced Range Telemetry (ARTM) Tier 0, I and II modulation. Its flight history reduces selection and system design risks and provides opportunities for qualification-by-similarity (QBS) analysis. CSS-905A is a proven, high-reliability telemetry transmitter that has supported a full range of qualification testing by the most demanding programs.
CSS-905A SPECIFICATIONS
| Multimode ARTM Tier 0, I and II modulation (PCM/FM, SOQPSK-TG and Multi-h CPM) |
| Input data rates configurable from 500 kbps to 27 Mbps |
|
Frequency selection from 2200 MHz to 2400 MHz in 0.5 MHz steps |
| RF output configuration settings of 2, 5, 7 and 10 W |
| RF enable/disable control pin |
| IRIG-106-Appendix-N-compliant RS-232 serial control and status interface |
| +21 VDC to +36 VDC power input range and reverse power protection to -40 VDC |
| -40 C to +85 C qualified operating temperature range |
| 100 Gs shock and acceleration, 28 Grms vibration |
| IRIG and MIL-STD-461 EMI compliant, with RF output filtering to protect co-located GPS and FTR subsystems |
| High-efficiency power design and power amplifier |
| User configurable or factory set |
| RF output protection from VSWR loads, including open and short conditions |
| Mission heritage |
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Frequency range |
2200 to 2400 MHz, 0.5 MHz steps |
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Output power |
2 W, 5 W, 7 W or 10 W (optional switchable power levels) |
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Modulation |
ARTM 0, I and II (PCM/FM, SOQPSK, Multi-h CPM) |
|
Carrier stability |
+/- 0.002% |
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Output load VSWR |
50 ohms (nominal), no damage open or short |
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Coupling |
DC |
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RS-422 input |
100 ohms differential impedance |
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Input VDC range |
+28 (typ), +21 to +36 |
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Current (typ.) |
< 750 mA at 28 V, 5W RF (across temp.); 1.3A at 28V, 10W RF (ambient) |
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Reverse polarity protection |
No damage -40 VDC applied, indefinite period |
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Grounding |
Power and RF output, common to chassis |
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Operating temperature |
-40 C to +85 C maximum |
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Storage temperature |
-54 C to +95 C |
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Random vibration |
28 G rms maximum |
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Shock |
100 G peak ½ sine, 0.5 mSec maximum |
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Acceleration |
100 G maximum |
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Humidity |
MIL-STD-810 Method 507 |
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Electromagnetic Interference (EMI) |
IRIG and MIL-STD-461 |
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Size |
3.0” L x 2.0” W x 0.8” H (7.62 cm L x 5.08 cm W x 2.0 cm H) |
|
Volume |
4.8 cubic inch (12.19 cubic cm) |
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Weight |
5.8 ounces (164.4 g) |