SmarTrunk Systems ST-9116C, Руководство по обслуживанию, Страница: 18 / 67

ST-9116C SM R 1.1 SMARTRUNK SYSTEMS, INC. 18
For power alignment, you can do a
fine-tuning as per your desire
frequency sub-band. The software
lets you linearize the complete band
“cutting” the complete band into
five steps to let you focus into your
frequency bands.
Even when the software has already
assigned the most convenient
frequency points to consider the
alignment, you still can enter
exactly the frequency of your
interest.
5.6.2.1. HIGH POWER LEVEL
ALIGNMENT
To align the High Power level select
Power High Level.
Software automatically retrieves
actual level to the alignment slider.
Figure 13: Power High Level Alignment
This level has been aligned in
factory, but you still can adjust is
as per your desires.
To realign, please select [Start] then
move the slider or introduce the
value manually at the time you
check the real transmit power on
the wattmeter connected to the
repeater as recommended on TX
alignment diagram.
As soon as [Start] is pressed, the
repeater starts to transmit a
carrier, so please verify the antenna
dummy load is properly connected
to avoid any damage to the
transmitter.
As soon the desired value is
reached, press [Finish] to store the
value into repeater memory.
If you want to load default High
power only, keeping any other value
without any change, press [Factory]
instead of [Start]. A pop up window
will ask you to confirm the default
parameters upload to the repeater
power.
Press [OK] to confirm.
As descripted previously, you can
manually select the frequency
range to align, divided into five
different sub-ranges.
You can also define the right
frequency of interest to align, typing
the desired one into the frequency
field:
If selected frequency is not
supported by repeater hardware,
the frequency field will be filled on
red. In case the PLL is locked, then
it becomes filled on green.
Please be sure that the PLL is
locked as soon as you press [Start],
otherwise the alignment should be
not correct.