Manual Convention For Navigation Instructions; Main Screen Components; Collecting State; Input Signals' Frequency And Power - Symmetricom 5120A Operation And Maintenance Manual

3.1.2 Manual Convention for Navigation Instructions

This manual uses the following convention to describe the softkey-based navigation flow shown in
in Figure 4 on page 12:
To view the Allan Deviation Table:
1. From the Allan deviation plot, press Config Allan Deviation.
2. Press View Table.
3. Press Return to go the previous screens.

3.2 Main Screen Components

This section provides a description of the main screen components shown in

3.2.1 Collecting State

The collecting state shows the test set's current mode of operation. The test set is in one of three
states at any given time: Ready, Initializing or Collecting.
In Ready state you may Start collecting provided that the Input and Reference signals'
frequency and amplitude are within operating range. Note that internal references
available on the 5120A-01 are within operating range unless the test set is damaged.
The Initializing state is a transition from Ready to Collecting state. In the Initializing state,
the test set takes a small set of measurements and uses it initialize the internal spur
detection algorithm. The Initializing state lasts up to 30 seconds.
Collecting state is entered once initialization is complete and the test set has begun
collecting and presenting data. When Collecting state is reached the test set starts
displaying measurements and tracking how long it has been collecting. See the top left
corner of
You can Stop collecting from either the Initializing or the Collecting state.
Note that updates to some data sets can be paused. The normal banner of asterisks displayed next
to the collecting state will change to Paused to indicate that the test set is presenting a paused data
set. The test set continues to make measurements and will present the most recent plot or table
when updates are resumed.
All measurements and calculations made in the Collecting state can be viewed, printed and
accessed on the network port even after you Stop collecting. They are cleared when data collection
is restarted.

3.2.2 Input Signals' Frequency and Power

These fields display the frequency and power as measured by the PNTS. As frequency and/or
power fall outside of specification or operating range the color coding of the fields changes as
well. Frequency or power values displayed in red are outside of operating range. Values displayed
in orange are out of specification but fall within operating range.
When no reference signal is attached to the 5120A-01, the Reference field reads "Internal", color
coded in blue, as internal reference signals are within operating range unless the test set is
damaged.
5120A/5115A Operations and Maintenance Manual
Figure 3 for an example of the collection duration.
Figure 3 on page 11.
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