Test Equipment Required For Alignment; Antenna Connector Adapter; Nut Wrench; Battery Jig - Kenwood NX-320 Series Service Manual

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 VTVM)
9. Audio Generator (AG)
10. Distortion Meter
11. 8Ω Dummy Load
12. Regulated Power Supply

■ Antenna connector adapter

The antenna connector of this transceiver uses an SMA
terminal.
Use an antenna connector adapter [SMA(f) – BNC(f) or
SMA(f) – N(f)] for adjustment. (The adapter is not provided
as an option, so buy a commercially-available one.)

■ Nut wrench

In order to turn the volume nut and the channel selector
nut, use a recommendation tool.
KENWOOD part No.: W05-1123-00
■ Battery Jig (W05-0909-00)
Connect the power cable properly between the battery
jig installed 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 connection may damage the transceiver, or the
power supply or both.
When using the battery jig in user mode, the transceiver
assumes that a lithium-ion battery pack is attached to the
transceiver. In adjustment mode, battery type detection is
not performed.
ADJUSTMENT (K TYPE)
Frequency Range 400 to 520MHz
Modulation Frequency modulation and external modulation
Output –127dBm/0.1µV to greater than –20dBm/22.4mV
When performing the Frequency adjustment, the following accuracy is necessary.
• 0.001ppm
Use a standard oscillator for adjustments, if necessary.
Input Impedance 50Ω
Operation Frequency 400 to 520MHz
Measurement Capability Vicinity of 10W
Frequency Range 400 to 520MHz
Measuring Range 10mV to 10V DC
Input Impedance High input impedance for minimum circuit loading
DC through 30MHz
Frequency Range 10Hz to 1000MHz
Frequency Stability 0.2ppm or less
5A
Frequency Range 50Hz to 10kHz
Voltage Range 1mV to 10V
Frequency Range 50Hz to 5kHz or more
Output 0 to 1V
Capability 3% or less at 1kHz
Input Level 50mV to 10Vrms
Approx. 8Ω, 3W
5V to 10V, approx. 3A
Useful if ammeter equipped
Major Specifi cations
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, be-
tween the power supply and the battery jig, especially while
the transceiver transmits.
Schematic diagram
S
–
+
NX-320
+ Terminal (Red)
– Terminal (Black)
–Terminal
(Black)
Power Power
cable supply
+
+Terminal
(Red)
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