24-4.5 PROJ 25 Trunking BER Screen
Upon selection of the PROJ 25 Trunking
BER (Bit Error Rate) test the screen zones
defined in section 24-3 will display
parameters associated with Project 25
Trunking BER testing. The BER test
performs a monitor operation where the
analyzer will receive either C4FM or LSM
V.52 test pattern. The results of the BER are
displayed in the Display Zone. Refer to
paragraph 24-4.5.1 Display Zone.
The Display Zone consists of a single section
with several fields that relate to BER testing.
A description of each field is included
below.
Meter
The meter provides the standard PROJ 25
Trunking meter selections and a reset
softkey. This softkey allows the user to clear
the accumulated BER values and restart the
BER computation.
24-4.5.1 RF Zone
The BASE test will co
nfigure the RF zone
for monitor 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 MONITOR as the only
selection. MONITOR is required when in
BER 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). The NB should be used
for BASE testing only.
Mon Freq
This field allows the user to specify the
frequency that the analyzer will receive the
V.52 test pattern from the base station being
tested. This is the frequency that the base
station being tested is transmitting.
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
selection of the receive port, either ANT or RF
I/O.
24-4.5.2 Audio Zone
The audio zone allows the user to enter
parameters relating to the received signal. A
description of the audio zone fields is as
follows:
Code
This defines the test pattern to be received.
The only option available is V.52 BER.
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