Adjustment - Kenwood NX-340 Service Manual

4.1 Test Equipment Required for Alignment
Test Equipment
1. Standard Signal Generator
(SSG)
2. Power Meter
3. Deviation Meter
4. Digital Volt Meter (DVM)
5. Oscilloscope
6. High Sensitivity Frequency
Counter
7. Ammeter
8. AF Volt Meter (AF VM)
9. Audio Generator (AG)
10. Distortion Meter
11. 8Ω Dummy Load
12. Regulated Power Supply
*The test eguipment which is not used for adjustment is contained in this table.
Antenna connector adapter
The antenna connector of this transceiver uses an SMA termi-
nal.
Use an antenna connector adapter [SMA(f) - BNC(f) or SMA(f)
- N(f)] for adjustment. (The adapter is not provided as an op-
tion, so buy a commercially-available one.)
Repair Jig (Chassis)
Use jig (Chassis) for repairing the transceiver. Place the TX-
RX unit on the jig and fit it with screws.
The jig facilitates the voltage check and protects the final am-
plifier FET when the voltage on the flow side of the TX-RX unit
is checked during repairs.
Battery Jig (W05-1011-00)
Connect the power cable properly between the battery jig in-
stalled in the transceiver and the power supply, and be sure
output voltage and the power supply polarity prior to switching
the power supply ON, otherwise over voltage and reverse con-
nection may damage the transceiver, or the power supply or
both.
1-16 (No.RA024<Rev.001>)
SECTION 4

ADJUSTMENT

Frequency Range
Modulation
Output
Input Impedance
Operation Frequency
Measuring Range
Frequency Range
Measuring Range
Input Impedance
Frequency Range
Frequency Stability
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
Major Specifications
100 to 520MHz
Frequency modulation and external modulation
-127dBm/0.1μV to greater than -47dBm/1mV
50Ω
100 to 520MHz
Vicinity of 10W
100 to 520MHz
10mV to 10V DC
High input impedance for minimum circuit loading
DC through 30MHz
10Hz to 1000MHz
0.2ppm or less
5A
50Hz to 10kHz
1mV to 10V
50Hz to 5kHz or more
0 to 1V
3% or less at 1kHz
50mV to 10Vrms
Approx. 8Ω, 3W
5V to 10V, approx. 3A
Useful if ammeter equipped
Note:
When using the battery jig, you must measure the voltage at
the terminals of the battery jig. Otherwise, a slight voltage
drop may occur within the power cable, between the power
supply and the battery jig, especially while the transceiver
transmits.
Schematic diagram
S
-
+
+ Terminal (Red)
- Terminal (Black)
- Terminal
(Black)
Power
Power
supply
cable
+
+Terminal
(Red)