Operating Guide

nano3GAP Operations Manual Common Procedures
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Click a detected cell (in Chart view the line changes to blue) to show more details in the
Selected ARFCN tab on the right.
Note: Optionally use the detected results to fill in the static neighbour lists.
2.4.3 Apply Frequency Correction
First check the possible frequency adjustment as follows:
1) Find the required AP by its serial number or object name (see section 2.2.2).
2)
In the Navigation pane, select the Network Listen Status Package.
3) In the Properties pane, inspect the Estimated Frequency Offset (PPB) value.
4) If the offset magnitude is more than 50 (that is more than +50 or less than -50), it
may be useful to apply frequency correction.
Note: If the offset is within +/- 50ppb, that offset will never be used. A correction
will only be applied if the Network Listen results are more than 10
minutes old and a rescan results in a recalculated offset magnitude
greater than 50ppb.
If it is necessary to apply a frequency correction, use the following procedure:
5) Right-click the AP object and a menu will appear.
6) Select Shutdown and wait for the AP to lock or Lock to lock the AP immediately.
7) When the AP is locked, with the padlock symbol, right-click the AP object again
and the menu will appear.
8) Move the pointer down to Actions and a sub-menu will appear.
9) Click Apply Frequency Correction. The AP will do the following:
o The time of the last scan is checked. If the scan is older than 10 minutes, a
new scan takes place and a replacement offset value is recalculated. If the
offset is smaller than +/- 50ppb, there is no further action (that is, no offset is
applied).