Bird Technologies BDS-Manual - Manual (Page 41)

27
Scan Mode Options
Standard Tracking Mode Options
Frequency Selection
The Frequency Selection page is used to define a set of frequencies for the BDS to monitor while in Frequency Track-
ing Mode.
Note: All options including harmonic and intermod selection, tolerance, filter width, and tracking quality,
apply to a fundamental frequency.
Figure 12 Frequency Selection Dialog
Resolution - This field is always set to use “Auto”. Auto mode will automatically decide which converter to use
based on the selected frequency list.
•
The 12-bit converter is used if all frequencies in the list are less than 100 MHz.
•
The 8-bit converter is used if all frequencies in the list are greater than 100 MHz.
•
A switching algorithm is used for a frequencies list that contains frequencies ranging from 1-500 MHz.
Fundamental - Enter a custom generator frequency or select from the list of generator frequencies commonly
used in the semiconductor industry.
Note: Select all other options for the fundamental before adding it to the list of selected frequencies.
Options include harmonic selection, intermod selection, and tolerance settings.
F2 Frequency - Select another fundamental from the list to use as the “F2” frequency in an intermodulation prod-
uct.
Note: The F2 frequency must have already been added to the selected frequencies list.
Note: An intermod is combination of two frequencies in the form: IMD = F1+nF2, where n is one of {-3,-2,-
1,1,2,3}.
Intermod - Select the number of intermodulation products reported for the fundamental. Up to 6 IMD products can
be selected for a fundamental (3 pairs):
•
F1 +1/-1 F2 (2 IMD products).
•
F1 +2/-2 F2 (4 IMD products).
•
F1 +3/-3 F2 (6 IMD products).