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4.4
Adjustment points
MAIN UNIT (XC1-276)
Component Side
4.5
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. Frequency Counter
7. Ammeter
8. AF Volt Meter (AF VM)
9. Audio Generator (AG)
10. Distortion Meter
11. Spectrum Analyzer
12. 8ohm Dummy Load
13. Regulated Power Supply
* The test equipment which is not used for adjustment is contained in this table.
RTC (CN412)
CN412
RTC
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
To measure the oscillating frequency of the internal clock 32766.00Hz~32770.00Hz for
RTC Correction Resolution 0.01Hz is better for accuracy adjustment.
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
Measuring Range
Major Specifications
100 to 950MHz
Frequency modulation and external modulation
-127dBm/0.1uV to greater than -20dBm/22.4mV
50ohm
100 to 950MHz
Vicinity of 10W
100 to 950MHz
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
DC to 1GHz or more
Approx. 8ohm, 3W
5V to 10V, approx. 3A, Useful if ammeter equipped
(No.RA070<Rev.001>)1-37
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