Technical data

146 Chapter 5
Adjacent Channel Power
Using the Adjacent Channel Power Measurement
Adjacent Channel Power
are required.
Default adjacent channel power measurement settings, called ACP formats, are
provided in the E7495A/B base station test sets. Generally, the ACP format is
determined by the channel standard you select. However, to accommodate your
particular situation, you can decouple the default formats from the channel standard,
or you can change each measurement setting independently. The three methods of
selecting your measurement settings are:
• Channel: Each channel standard has an associated ACP format. With this
method, the optimum measurement bandwidth and measurement time for the
modulation type are automatically selected when you set the channel standard.
For example, when you select GSM-950 as the channel standard, with this
method the test set selects the bandwidth and time and adjacent channel offsets
for the GSM format.
• List: Select the ACP format from a list of values that are set
automatically—independent of the channel standard.
• Custom: Manually set all parameters: the measurement bandwidth and
measurement time for the center and adjacent channel(s), the offset from the
center channel for the first adjacent channel, and the offset between adjacent
channels.
To Select the Channel Format Type:
Step Notes
1. [ACP Format]
2. [Format Type] Each time you press this softkey, the
selected option changes. The option you
select determines which buttons on the
right are active.
3. [ C h a n ]
4. Select the standard you want.
a. [Chan Std]
b. Select the standard using the up
and down arrow buttons.
c. [Select]
Channel BW/Time is available, but all
buttons are grayed out, enabling you
only to view the settings. To change any
of the settings, choose Cust.