User's Manual

Menus and Parameters
Manual Revision 1.0
4-51
Transmit Power
The Transmit Power parameters are defined separately for different
modulation levels. Note that the supported modulation levels depend on
the Min modulation Level and Max Modulation Level defined for the
applicable Sub Band.
In the AU, the Transmit Power parameter defines the fixed transmit
power level and is not a part of the ATPC algorithm.
In the SU, The Initial Transmit Power parameter defines the fixed
transmit power level when the ATPC algorithm is disabled. If the ATPC
Option is enabled the value configured for this parameter serves for
setting the initial value to be used by the ATPC algorithm after either
power up or loosing synchronization with the AU.
The minimum value for the Transmit Power Parameters is -10 dBm.
(The ATPC may reduce the actual transmit power of the SU to lower
values). The maximum value of the Transmit Power Parameter depends
on several unit properties and parameters:
! The HW revision of the unit
! The modulation level
! The Maximum Allowed Tx Power as defined for the applicable Sub
Band.
! The Maximum EIRP as defined for the applicable Sub Band,
together with the value of the Antenna Gain. In certain countries the
Maximum EIRP of some equipment types cannot exceed a certain
value. In these cases the Transmit Power cannot exceed the value of
(Maximum EIRP – Antenna Gain).
! Maximum Tx Power parameter (in SU only)
For information on how to view the Sub Bands supported by the unit
and the supported parameters’ values and options, refer to Show
Country Dependent Parameters on page 4-9.
The unit calculates the maximum allowed Transmit Power according to
the unit properties and parameters listed above, and displays the
allowed range when a Transmit Power parameter is selected.
The default Transmit Power is the highest allowed value.
Maximum Tx Power (SU only)
The Maximum Tx Power parameter limits the maximum transmit power
that can be reached by the ATPC algorithm. It also sets the upper limits
for the Transmit Power parameters.