Key Reference 5
BW/SWP
Activates the bandwidth function and accesses the associated softkeys to control resolution bandwidth, video bandwidth and sweep time.
RBW
| Changes the 3- dB resolution bandwidth on the | |
| analyzer from 30 Hz to 1 MHz in a 1, 3, 10 | |
| sequence using the knob, step keys or the numeric | |
| keypad. | |
| If an unavailable bandwidth is entered using the numeric | |
N O T E | ||
keypad, the closest available bandwidth in the 1, 3, 10 | ||
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| sequence is used. | |
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| As the resolution bandwidth is decreased, the | |
| sweep time is modified to maintain amplitude | |
| calibration. Resolution bandwidth is also related to | |
| span. As span is decreased, resolution bandwidth | |
| decreases. As the resolution bandwidth changes, | |
| the video bandwidth, if in auto couple mode, | |
| changes to maintain the VBW/RBW ratio. | |
| In | |
N O T E | ||
whether the setting for RBW is Auto or Man (manual). | ||
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| A “#”mark appears next to RBW on the display | |
| when it is not coupled. | |
| Key access: [BW/SWP] |
N9340A User’s Guide | 73 |