GE MDS SD Series Technical Manual page 86

To use the Spectrum Graph, you must first specify a center frequency and a span frequency. The
center frequency is the frequency that you wish the spectrum display to be centered on. The span
frequency defines the width of the overall spectrum to be examined.
•
Center Frequency
•
Span Frequency
A sample spectrum graph from the transceiver is shown below.
Alarm Test
The screen provides a way to force an alarm for testing alarm reporting and radio re-
Alarm Test
sponse. When set to
ON
LED begins to flash. An "Alarm Test" entry is also made in the Event Log, and the external
PWR
alarm output status is changed.
In redundant configurations such as SDxP/SDxDP/SDxDT packaged models, the Alarm Test can
be used to force a switchover between redundant radios. The alarm test is a timed facility. When
applied, it will assert for 30 seconds, and then deactivate. If active, it can be manually deactivat-
ed prior to timeout by setting the parameter to
again.
76
— The frequency (in MHz) that the graph will be centered on.
— Width (in kHz) of the spectrum to be examined.
Figure 41. Example Spectrum Graph
, clicking the
Commit Configuration
SD Series Technical Manual
button sets an alarm, and the radio's
, and clicking the
OFF
button
Commit Configuration
MDS 05-4846A01, Rev. I