Figure 13. Bit Error Rate Screen - Motorola XTS 2500 Basic Service Manual

Radio Alignment Procedures
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This field represents the digital modulation type of the incoming signal on which BER is to
be calculated.
Continuous Operation:
This field allows the user to make the BER test repeat indefinitely. A selection of Yes will
cause the radio to calculate BER on a continuous basis and update the results on this screen
after each integration time. A selection of No will cause the BER test to execute for only
one sample of the integration time and then update the display.
Audio:
This field allows the user to select the audio output during a test. Selecting Internal will
cause the radio's built-in speaker to unmute to any signals at the desired frequency which
are present during the test. Selecting External will route the same signal to the radio's
accessory connector audio output. Selecting Mute will disable the audio output.
Integration Time:
This field represents the amount of time over which the Bit Error Rate is to be calculated.
The range is from 0.360 to 91.8 seconds in increments of 0.360 seconds.
NOTE: When Continuous Operation = Yes, all fields will be grayed out while
test is in progress. They will be enabled when the STOP button is
pressed.
When Continuous Operation = No, a wait cursor will be displayed while
the test is in progress and return to normal when the test is done.

Figure 13. Bit Error Rate Screen