Interpreting the User Interface The screenshot below shows the output of a typical session with Lan Time Analyzer. Key user interface components are identified by number and explained in the legend at the bottom of this page.
1. Tool bar
The tool bar can be used to add time clients to the database of Lan Time Analyzer, remove time clients, change the operating parameters at each client, and to configure Lan Time Analyzer itself.
2. Root Dispersion Window
The root dispersion window shows the nominal error of time stamps received from the NTP server with respect to the true time source, e.g. atomic clock, GPS clock, etc. This value is important in interpreting the nominal error of individual time clients. Principally, the nominal error of each time client only bears significance when it exceeds the nominal error of the true time server. 3. Key-Value Pane
The key-value pane shows the operating parameters in effect at the PresenTense time client selected in the left window pane. These include time server, time protocol, and security parameters.
4. PresenTense Time Client Column
This column shows all PresenTense time clients administered by Lan Time Analyzer. You can add additional clients here or remove clients from the database. Note that the icon indicates the operating system the time client is operating on. In this context, the "98 symbol", indicates that the PresenTense time client is operating on either a Windows 95 or a Windows 98 system. While the "NT symbol" indicates a Windows NT based system.
5. Machine Time Column
This column details the time reported by each client in 24 hour time format. Seconds are indicated to the third digit of accuracy. Thus a time stamp of the format "08:32 3.463" indicates that the time at the client was 8:32 am, 3 seconds, and 463 milliseconds when Lan Time Analyzer last queried the client. 6. True Time Column
This column shows the time the client was last queried. Lan Time Analyzer synchronizes the system clock of the PC it operates on at the beginning of each session. Thus the difference between Machine Time and True Time is used to compute the nominal error at each client.
7. Error Column
This column indicates the nominal error of each time client. It is computed as the difference between reported Machine Time and known True Time.