Motorola SYSTEMS SABER SECURENET Handie-Talkie Servis Kılavuzu - Sayfa 19

Taşınabilir Radyo Motorola SYSTEMS SABER SECURENET Handie-Talkie için çevrimiçi göz atın veya pdf Servis Kılavuzu indirin. Motorola SYSTEMS SABER SECURENET Handie-Talkie 30 sayfaları.

Sayfayı Yazdır
2.
PERFORMANCE
CHECKS
IN
AIR
TEST
MODE
Tables
3 and 4 outline
a series
of
performance
checks
that can be done without
any disassembly
of the radio.
If
there is an indication of
a
malfunction,
these checks should
be the first step
in
the fault isolation
process. The
FCC
requires that the frequency and deviation
of
the transmitting
device
be
checked
before the
device
is
placed
in
service
and once annually thereafter.
When making measurements using
field
test equipment, allow for
+10% measurement
error.
The
SYSTEMS SABER
radio is
factory tuned using equipment
of
greater accuracy.
Table
3.
Transmitter Performance
Checks
in
Air Test
Mode
Transmitter Test:
All tests below are done with the test box
PTT
switch on; however, the switch must be turned off when
changing
modes or channels.
All of the following tests can be performed on
any frequency/channel.
Set
power supply
to
7.5V
at the radio battery terminals.
Set
test box
METER
SELECTOR
switch
to the
MIC position. Connect
ac
voltmeter to
AC/DC
MONITOR jack
on
test box. Connect audio generator
output to audio input on
test box.
Test
Name
Mode
Instructions
Specifications
Tx
Power
Connect
remote
antenna
6W
or
2.5W
port to
power
meter.
Tx
Current
Connect
remote antenna
3.3
or 2.1
Amps
port to
50
ohm load.
Tx
Frequency
Measure
Tx
frequency
+500Hz
maximum
Error
at remote
port.
Tx
Modulator
Audio
input
level =
5
kH maximum
80 mV
rms;
1
kHz
tone.
deviation
Limiting
Tx
Modulator
Apply
1
kHz
tone. Adjust
2-15 mV
rms
Sensitivity
audio input level for
3.0 kHz deviation.
Tx PL
Connect
remote
antenna
0.5-1.0 kHz
Deviation
deviation
port to
deviation meter.
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
Limiting
with
80 mV
rms;
1
kHz
tone.
deviation
PL
and
Voice
Tx Connect
Connect
remote
antenna
0.8-1.2 kHz
Tone Deviation
port to
deviation meter.
deviation
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
deviation
Limiting
with
80 mV
rms;
1
kHz
tone.
DPL
and Voice
Tx DPL
Connect
remote
antenna
0.5-1.0 kHz
Deviation
port to
deviation meter.
deviation
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
Limiting with
80 mV
rms
1
kHz
tone.
deviation
DPL
and
Voice
Connect
remote
antenna
2.4-3.6 kHz
Tx
High
Speed
Data Deviation
port to
deviation meter.
deviation
Tx
Binary Path
Special
path not
used
Not
Applicable
at this time.
1
1
1
1
1
2
2
3
3
4
4
5
6
11
2.
PERFORMANCE
CHECKS
IN
AIR
TEST
MODE
Tables
3 and 4 outline
a series
of
performance
checks
that can be done without
any disassembly
of the radio.
If
there is an indication of
a
malfunction,
these checks should
be the first step
in
the fault isolation
process. The
FCC
requires that the frequency and deviation
of
the transmitting
device
be
checked
before the
device
is
placed
in
service
and once annually thereafter.
When making measurements using
field
test equipment, allow for
+10% measurement
error.
The
SYSTEMS SABER
radio is
factory tuned using equipment
of
greater accuracy.
Table
3.
Transmitter Performance
Checks
in
Air Test
Mode
Transmitter Test:
All tests below are done with the test box
PTT
switch on; however, the switch must be turned off when
changing
modes or channels.
All of the following tests can be performed on
any frequency/channel.
Set
power supply
to
7.5V
at the radio battery terminals.
Set
test box
METER
SELECTOR
switch
to the
MIC position. Connect
ac
voltmeter to
AC/DC
MONITOR jack
on
test box. Connect audio generator
output to audio input on
test box.
Test
Name
Mode
Instructions
Specifications
Tx
Power
Connect
remote
antenna
6W
or
2.5W
port to
power
meter.
Tx
Current
Connect
remote antenna
3.3
or 2.1
Amps
port to
50
ohm load.
Tx
Frequency
Measure
Tx
frequency
+500Hz
maximum
Error
at remote
port.
Tx
Modulator
Audio
input
level =
5
kH maximum
80 mV
rms;
1
kHz
tone.
deviation
Limiting
Tx
Modulator
Apply
1
kHz
tone. Adjust
2-15 mV
rms
Sensitivity
audio input level for
3.0 kHz deviation.
Tx PL
Connect
remote
antenna
0.5-1.0 kHz
Deviation
deviation
port to
deviation meter.
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
Limiting
with
80 mV
rms;
1
kHz
tone.
deviation
PL
and
Voice
Tx Connect
Connect
remote
antenna
0.8-1.2 kHz
Tone Deviation
port to
deviation meter.
deviation
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
deviation
Limiting
with
80 mV
rms;
1
kHz
tone.
DPL
and Voice
Tx DPL
Connect
remote
antenna
0.5-1.0 kHz
Deviation
port to
deviation meter.
deviation
Remove
audio
input.
Tx
Modulator
Audio
input
level =
5
kHz
maximum
Limiting with
80 mV
rms
1
kHz
tone.
deviation
DPL
and
Voice
Connect
remote
antenna
2.4-3.6 kHz
Tx
High
Speed
Data Deviation
port to
deviation meter.
deviation
Tx
Binary Path
Special
path not
used
Not
Applicable
at this time.
1
1
1
1
1
2
2
3
3
4
4
5
6
11