Front and Rear Panel Features
Rear-Panel Features
Rear-Panel Features
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| Item | Description |
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| Name |
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| Front | ||
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1 |
| NOISE SOURCE | Provides 28 V to drive a noise source. Used on Option 219 Noise Figure personality. |
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| DRIVE OUT |
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| and |
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| +28 V (PULSED) |
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| Rear |
2 |
| PRESEL TUNE | Outputs tuning voltage for preselected harmonic mixer. |
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| OUT |
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| Panel |
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3 |
| 10 MHz OUT | A switched output of the analyzer’s internal 10 MHz frequency reference signal used |
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| (SWITCHED) | to lock the frequency reference of other test equipment to the analyzer. |
| Features |
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5 |
| 321.4 MHz IF | Provides 321.4 MHz IF output. Not available on E4447A. |
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4 |
| EXT REF IN | Input for a 1 to 30 MHz external frequency reference signal. |
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| Out |
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6 |
| TRIGGER 1 OUT | A trigger output used to synchronize other test equipment with the analyzer. Trigger |
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| 1 is the High=Sweeping (HSWP) signal. |
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7 |
| TRIGGER 2 IN | Allows external triggering of measurements. |
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8 |
| VIDEO OUT | Provides a |
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| is being used. (Option 124) |
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9 |
| 21.4 MHz IF OUT | Provides 21.4 MHz IF output. (Option HB2) Not available on E4447A. |
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10 |
| USB Port | Provides USB interface (Option 111). USB device side I/O only. |
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Chapter 2 | 29 |
