AN/URQ-13 Frequency & Time Control System
AN/URQ-13 Frequency & Time Control System
| AN/URQ-9 | Frequency Standard
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O-471/U Oscillator PP-2223/U Power Supply
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NAVSHIPS 93221 |
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This highly stable frequency standard is designed for
continuous-duty use aboard ships and at shore facilities. It has three fixed output frequencies: 5 mc, 1 mc, and 100 kc. Because it is intended as a frequency standard against which other frequency-generating equipment can be compared, the AN/URQ-9 is energized and calibrated at special calibration laboratories. Once it is placed in operation and is calibrated properly, the frequency standard must not be turned off. Any interruption in its operation will cause a change in its output frequencies. Hence, the equipment is transferred to the using activity while still operating. A battery, which is built into the equipment, maintains operation during the time the frequency standard is in transit. It also supplies power to the unit in the event of power failure aboard ship. When fully charged, the battery is capable of operating the equipment for approximately 2 hours. |
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| AN/URQ-10 |  |
Solid-state version of URQ-9
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- | - |
| O-1107/SRC-16 |  |
- | - | - |
| O-1824A/U | Cesium Beam Standard
Frequency Electronics Inc. FE-5440A
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Data sheet & info |
| AM-2123/U |  |
distribution amp
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- | specifications here |
| O-463/SRC | need photo | RF synthesizer need more info |
Navships 93151 |
| O-464/SRC |  |
2-34 mc synthesizer need more info |
Navships 93463 |
| O-792/SRC | need photo | 2-34 mc synthesizer need more info |
Navships 93797 |
