Key Reference 5
Preamp
| Toggles the internal preamp between On and Off. | |
| Preamp results in a correction being applied to | |
| compensate for the gain of the preamp at 20 dBm | |
| so that amplitude readings show the value at the | |
| input connector. | |
| When the preamp is on, a PA indication appears on the left | |
N O T E | ||
side of the display. | ||
| ||
|
| |
| The preamp is set to on in frequency bands from | |
| 1 MHz to 3 GHz, otherwise the correction is not | |
| applied even though the PA indication still appears. | |
| Key access: [AMPTD] |
Scale/DIV
| Sets the logarithmic units per vertical graticule | |
| division on the display. | |
N O T E | The Scale/Div function is only available when the Scale Type | |
key is set to Log. | ||
|
Key access: [AMPTD]
Scale Type
Toggles the scale type of vertical graticule divisions between logarithmic and linear.
When Scale Type is set to Log, a Logarithmic units is activated ranging from 1 to 10 dB per division.
When Scale Type is set to Lin, the vertical divisions are linearly scaled and the default amplitude units are volts. The top of the display is set to the reference- level value and the bottom graticule becomes zero volts. (Each division of the tragically is one- tenth of the reference level in volts.)
Key access: [AMPTD] > {Scale Type}
N9340A User’s Guide | 71 |
