General Dynamics R2600 Series User Manual

6. Monitor the radio's received BER. Reduce
the analyzer's output level until the radio
measures a BER corresponding to
sensitivity threshold. Consult your radio
maintenance manual for the receiver
sensitivity specification.
m
anual to determine the BER threshold percentage
to be used in testing.
Test frequencies may be specified for the BER test
of your equipment. Consult the radio maintenance
manual.
18-5 BER TESTING THE RADIO
TRANSMITTER (Monitor mode)
1. Connect the RF Input port of the radio
under test to the analyzer GEN OUT port.
Consult the radio maintenance manual to
determine the appropriate test port.
This application example describes the
transmitter test for radios that have BER test
capability. The transmitter must have the
capability of transmitting an unencrypted V.52
BER test pattern. Performance of this test
requires the analyzer to operate in monitor or
duplex mode, while monitoring a test signal
transmitted by the radio under test.
2. Select the ASTRO BER Test mode by
placing the cursor in the “Code:” field in the
Audio Zone (Figure 4-1). With the cursor in
the “Code:” field, select the BER softkey.
3. Set controls in the Audio zone as follows.
When testing the transmitter, the radio generates
a test signal. The analyzer measures the
transmitted BER, frequency error, and power
level of the signal transmitted by the radio.
Consult the radio maintenance manual, as
specific test frequencies may be specified for
BER test of your equipment.
1. Connect the RF input/output of the mobile
radio under test to the RF I/O port of the
analyzer as shown in figure 17-3. Consult
the radio maintenance manual to determine
the appropriate test port.
4. Place the cursor within the RF Control zone
and configure the analyzer as follows:
RF Control:
806.0625
MHz
GENERATE
Freq:
Output Lvl: -50.0 dBm
Preset: - - B/W: NB
Gen RF Out GEN
5. Configure the radio under test to BER Test
mode. Consult your radio maintenance
manual for specific instructions. Reset the
analyzer frequency to the BER Test
frequency of the radio.
244

General Dynamics R2600 Series Specifications

General

Brand	General Dynamics
Model	R2600 Series
Category	Measuring Instruments
Language	English