The details are described in the next two steps. “Antenna” refers both to an external
antenna and an integrated antenna. The two steps should be carried out for each
HSU in the sector.
Warning
Never stand in front of a live antenna!
5. Make a horizontal sweep of 180 degrees with the HSU antenna so that the strongest
signal from the HBS can be detected.
6. Slowly turn the HSU antenna back towards the position of the HBS, listening to the
tone until the best signal is reached. See the following figure for audible signal varia-
tions.
Figure 3-9: Beep Sequence for antenna alignment
Note
• Three beeps and a pause is 'best signal so far'
• Two beeps and a pause is 'signal quality increased'
• One beep and pause is 'no change in signal'
• Long beep and short pause is 'signal quality decreased'
• One beep and a long pause is 'no air link'
• Any other signal does not relate to antenna alignment
7. Secure the HSU antenna to the pole/wall.
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