Stop Test
When a test is not in progress the start
test/stop test softkey displays:
Start Test
RX Signal Type
There are two options available for this field:
LSM (Linear Simulcast Modulation) and
C4FM (4 level FM-C). These define what
modulation format is going to be received on
the monitor frequency.
Averaging Wattmeter
This field will turn on or turn off the
averaging wattmeter function. This function
computes the average RF input power of a
time period (specified in the Measurement
Period field). When the averaging wattmeter
is on any keypress or received remote
command will halt the measurement (will
turn off the average wattmeter) and the
keypress will be ignored.
Measurement Period
This defines the time period (in seconds) that
the input power is averaged over. This
allows values of 0.09 seconds to 4.32
seconds.
Input Lvl
This field displays the results of the power
measurement when the average wattmeter is
on. The user can select how the results are
displayed as either dBm or as micro volts or
watts (uV or W).
24-4.4.2 RF Zone
The BASE test will configure the RF zone
for duplex operation. The fields available
will be similar to the RF Zone fields when in
standard mode. A description of the RF zone
fields is as follows:
RF Control
This provides DUPLEX as the only selection.
Duplex is required when in BASE test mode.
Preset
This field allows the user to select predefined
memory presets. This is the same function
that is available when in standard mode (refer
to GENERAL OPERATIONS).
B/W
This is the bandwidth selection field and has
the same functionality as the B/W in standard
mode (refer to GENERAL OPERATIONS).
The user can select either NB (Narrow Band)
or WB (Wide Band). For BASE testing only
the NB should be used.
Mon Freq
This field allows the user to specify the
frequency that the analyzer will receive the
1011 Hz test pattern from the base station
being tested. This is the frequency that the
base station being tested is transmitting.
Offset
This is the relative offset from the Mon Freq
that defines the analyzer’s generator
frequency. This can range in values of:
-999.99975 to +999.99975. The generator
frequency is computed by:
Gen freq = Mon freq + Offset
The generator frequency is the analyzer’s
transmit frequency for the C4FM 1011 Hz test
pattern. This should be the receive frequency
for the base station being tested.
Mon
Allows the user to select the amount of
attenuation to apply to the received RF signal.
This can be 0, 20, or 40 dB. It also allows the
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