What is the amplitude resolution of the marker readout in the 8560E and 8560EC Series spectrum analyzers?
Although a 12-bit digitizer is used in the 8560E and 8560EC spectrum analyzers, the ADC alone does not determine the Y-axis or vertical resolution of the display. Design considerations for overall display resolution are also driven by the X-axis resolution, which is 601 data points or "buckets" for this family of analyzers. As a result, some ADC vertical resolution is discarded.
In log scale, the resolution is:
| SCALE SETTING | RESOLUTION |
|---|---|
| 1/6 dB | |
| 5 dB/div | 1/12 dB |
| 2 dB/div | 1/30 dB |
| 1 dB/div | 1/60 dB |
In linear scale, the resolution is:
- Reference Level / 600 dB
There is no way to extract the digitized data from the analyzer immediately after the ADC.