Kenwood SP-430 Marine Radio User Manual


 
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PREPARATIO
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Unless otherwise specified, set the controls as follows
.
POWER
ON
SELECTIVITY
AUT
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BAND
14
AGC FAST
SLO
W
AF
MIN
NOTCH SW
OF
F
RF
MAX PROC SW
OF
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NOTCH
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OF
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SQUELCH
MIN
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OF
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MIC
MIN
NB SW
OFF
CAR
MIN
ATT SW
OF
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OFF
VOX SW
OF
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s
REQUIRED TEST EQUIPMEN
T
1
. DC Voltmeter (DC V
.M
)
1)
Input resistance
: More than 1 MS
2
2)
Voltage range
: 1
.5 to 1000V AC/D
C
NOTE
: A high-precision multimeter may be used
.
However, accurate reading can not be obtained for high
-
impedance circuits
.
2
. DC Ammete
r
1) Current range
: 1
.5A, 3A, 20A, High-precisio
n
ammeter may be used
.
3
. RF VTVM (RF V
.M
)
1)
Input impedance : 1 MS2 and less than 3pF, min
.
2)
Voltage range
: 10mV to 300
V
3)
Frequency range
: 10kHz to 100MHz or greate
r
4
. AF Voltmeter (AF V
.M
)
1)
Frequency range
: 50Hz to 10kH
z
2)
Input resistance
: 1 M12 or greate
r
3)
Voltage range
: 10mV to 30
V
5
. AF Generator (AG
)
1)
Frequency range
: 200Hz to 5kH
z
2)
Output
: 1 mV or less to IV, low distortio
n
6
. AF Dummy Loa
d
1)
Impedance
: 8S
0
2)
Dissipation
: 3W or greate
r
7
. Oscilloscope (SCOPE
)
Requires high sensitivity, and external synchronizatio
n
capability
.
8
. Sweep Generator (SWEEP
)
1)
Center frequency
: 50kHz to 90MH
z
2)
Frequency deviation
: Maximum±35MH
z
3)
Output voltage
: 0
.1V or greate
r
9
. Standard Signal Generator (SSG
)
1)
Frequency range
: 50kHz to 50MH
z
2)
Output
: – 20dB/0
.1µV to 120dB/ 1
V
3)
Output impedance
: 50
0
4)
AM and FM modulation can be possible
.
NOTE
: Generator must be frequency stable
.
10
. Frequency Counter If
. counter
)
1)
Minimum input voltage
: 50m
V
2)
Frequency range
: 50MHz or greate
r
11
. Noise Generato
r
Must generate ignition noise containing harmonics be-
yond 30MHz
.
12
. RF Dummy Loa
d
1)
Impedance
: 1 500 and 20
0
2)
Dissipation
: 150W or greate
r
13
. Power Mete
r
1)
Impedance
: 501
2
2)
Dissipation
: 150W cintinuous or greate
r
3)
Frequency limits
: 60MHz or greater
8 9