Kenwood NX-900 Service Manual page 50

NX-900
Test Equipment Required for Alignment
Test Equipment
1. Standard Signal Generator
(SSG)
2. RF Power Meter
3. Deviation Meter
4. Digital Volt Meter (DVM)
5. Oscilloscope
6. High Sensitivity
Frequency Counter
7. DC Ammeter
8. AF Volt Meter (AF VTVM)
9. Audio Generator (AG)
10. Distortion Meter
11. 4Ω Dummy Load
12. Regulated Power Supply
13. Spectrum Analyzer
14. Tracking Generator
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)
1 : BLC/AFO
2 : +B
8
3 : GND
4 : PTT/TXD (PC serial data from radio)
5 : MICE
6 : MIC
1
7 : HOOK/RXD (PC serial data to radio)
8 : DM/KVL
50
ADJUSTMENT
Frequency Range
Modulation
Output
When performing the Frequency adjustment, the following accuracy is necessary.
• 0.001ppm
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
Major Specifi cations
800 to 900MHz
Frequency modulation and external modulation
–127dBm/0.1µV to greater than –20dBm/22.4mV
50Ω
800 to 900MHz
Vicinity of 100W
800 to 900MHz
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. 4Ω, 20W
13.6V, approx. 20A (adjustable from 9V to 20V)
Useful if ammeter equipped
40MHz to 900MHz
Up to +20dBm
–100dBm
100Hz
100Hz
40MHz to 900MHz
–30dBm to 0dBm
Tuning cable (E30-3383-05)
Adapter cable (E30-3383-05) is required for injecting an au-
dio if PC tuning is used.
See "PC Mode" section fot the connection.
Lead wire +
Shield wire –
MIC