Kenwood NX-720 Service Manual page 64

NX-720
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. 4 Dummy Load
12. Regulated Power Supply
13. Spectrum Analyzer
14. Tracking Generator
*The test equipment which is not used for adjustment is contained in this table.
■ Test cable for microphone input (E30-3360-28)
GREEN
1
RED
2
BLACK
3
BLUE
4
SHIELD
5
WHITE
6
GRAY
7
YELLOW
8
■ MIC connector (Front panel view)
8
1
64
Frequency Range
Modulation
Output
When performing the Frequency adjustment, the following accuracy is necessary.
• 0.003ppm
Use a standard oscillator for adjustments, if necessary.
Input Impedance
Operation Frequency
Measurement Capability
Frequency Range
Measuring Range
Input Impedance
Frequency Range
Frequency Stability
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
Frequency Range
Input Level
Input Sensitivity
Resolution Bandwidth
Video Bandwidth
Frequency Range
Output Level
1
2
E
3
PTT
4
MIC-E
5
MIC
6
HK
7
8
1 : MBL
2 : +B
3 : GND
4 : PTT/TXD (PC serial data from radio)
5 : MICE
6 : MIC
7 : HOOK/RXD (PC serial data to radio)
8 : DM
Major Specifi cations
100 to 520MHz
Frequency modulation and external modulation
–127dBm/0.1µV to greater than –20dBm/22.4mV
50
100 to 520MHz
Vicinity of 100W
100 to 520MHz
10mV to 20V DC
High input impedance for minimum circuit loading
DC through 30MHz
10Hz to 1000MHz
0.01ppm or less
20A or more
50Hz to 10kHz
1mV to 10V
50Hz to 5kHz or more
0 to 1V
3% or less at 1kHz
50mV to 10Vrms
Approx. 4, 10W
13.6V, approx.20A (adjustable from 9V to 17V)
Useful if ammeter equipped
40MHz to 520MHz
Up to +20dBm
–100dBm
100Hz
100Hz
40MHz to 520MHz
–30dBm to 0dBm
■
Tuning cable (E30-3383-05 or E30-7754-05)
Adapter cable (E30-3383-05 or E30-7754-05) is required for
injecting an audio if PC tuning is used.
See "PC Mode" section for the connection.
Illust is E30-3383-05.
Lead wire +
Shield wire –
MIC