Installation and Initialization
Tsunami MP-8100 Installation and Management Guide 26
NOTE: All the four LEDs will blink during initialization.
Step 14: Align the Antenna
Antenna alignment is the process of physically aligning the antenna of the radio receiver and transmitter to have the best
possible link established between them. The antenna alignment process is usually performed during installation and after
major repairs.
If you are installing external antennas, refer to the documentation that accompanies the antenna for installation instructions.
The device has an audible antenna alignment tool that can be activated by plugging in the supplied RJ11 serial dongle or by
entering the specified CLI command. The CLI command enables both audible and numerical feedback as the CLI shows the
running Signal-to-Noise Ratio (SNR) values twice a second.
The output from the beeper for antenna alignment consists of short beeps with a variable interval. The interval changes with
the SNR level to assist in correctly aligning the antenna. An increase in signal level is indicated by a shorter interval between
beeps and a reduction in signal level results in beeps longer apart.
The alignment process averages the SNR, which is represented by an average length beep. When a higher SNR is received, the
beep period becomes shorter, dependent upon the difference to the average. A lower SNR results in a longer period between
beeps.
When the antenna is aimed, the beep intuitively represents whether the SNR is rising or falling. The higher the SNR rises, the
shorter the period the beep is heard and the higher the frequency of the beep.
When you change the position of the antenna, SNR averaging settles at the new value and the beeping returns to the
average length so the antenna can again be aimed for rising SNR.
Aiming is complete if moving in any direction results in a falling SNR value (which can be heard as longer periods between
beeps).
NOTES:
Green NA Power is on and the Ethernet link Eth2 is up
LED State Eth1
Wireless LED Power/Ethernet LED
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