This manual is for the operation and maintenance of the Flightline Systems Portable Acoustic Sonobuoy Simulator II (PASS II). The manual includes information on the product's features, specifications, usage and maintenance
The Portable Acoustic Sonobuoy Simulator II (PASS II) is a lightweight, one‑person portable test set for laboratory acoustic system integration and airborne/maritime acoustic verification. It simulates standard NATO sonobuoy signals, supports both RF‑modulated and baseband outputs, and includes a digital signal processor for high‑fidelity signal generation.
The manual covers the unit’s physical and functional interfaces, power options, menu structure, built‑in tests, periodic maintenance, battery handling, calibration, software updates, and detailed troubleshooting steps. Appendices provide additional reference material and part numbers for accessories.
| Dimensions | 15.25" x 12.5" x 9.75" |
|---|---|
| Weight | < 29 lb |
| Power Input (AC) | 115‑230 VAC |
| Power Input (DC) | 28 ± 3 VDC |
| Storage Temperature Range | -32 °C to +60 °C |
| Operating Temperature Range | -32 °C to +55 °C |
| Frequency Accuracy | ±0.003 % |
| FM Deviation Accuracy | ±0.1 % |
| Mod Out Output Level | ≈2 V RMS for 75 kHz deviation |
The PASS II can be powered from 115‑230 VAC or from a 28 ± 3 VDC source.
The unit can be stored from –32 °C to +60 °C and operated from –32 °C to +55 °C.
Do not open, puncture, or expose the Li‑Ion battery to flame; replace it only after removing the battery access cover and rotating it into a non‑contact orientation.