SECTION 4 ADJUSTMENT PROCEDURES
4-1 PREPARATION
Some adjustments must be performed on the “ADJUSTMENT MODE”.
■REQUIRED TEST EQUIPMENT
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EQUIPMENT |
| GRADE AND RANGE | EQUIPMENT | GRADE AND RANGE | ||
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| Output voltage | : 13.6 V DC [FR3000] | Audio generator | Frequency range | : |
DC power supply |
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| 13.2 V DC [FR3100] | Output level | : | |
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| Current capacity | : 25 A or more |
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| Attenuator | Power attenuation | : 40 or 50 dB | ||
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| Measuring range | : | Capacity | : 100 W or more | |
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RF power meter |
| Frequency range | : |
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| Frequency range | : | |||
(terminated type) |
| Impedance | : 50 Ω | Standard signal | ||
| Output level | : 0.1 | ||||
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| SWR | : Less than 1.2 : 1 | generator (SSG) | ||
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| Frequency range | : |
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Frequency counter |
| AC millivoltmeter | Measuring range | : 10 | ||
| Frequency accuracy | : ±1 ppm or better | ||||
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| Sensitivity | : 100 mV or better | Oscilloscope | Frequency range | : |
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| Measuring range | : | |
FM deviation meter |
| Frequency range | : |
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| Digital multimeter |
| : 10 MΩ/V DC or better | |||
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| Measuring range | : 0 to ±5 kHz | Input impedance | ||
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•CONNECTION
Standard signal generator
DC power supply
13.6V/25 A [FR3000]
13.2V/25 A [FR3100]
RF power meter
Attenuator |
| FM deviation meter |
40 dB or 50dB |
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Frequency counter
Oscilloscope
[BATTERY] [RX]
Personal computer
[MIC]
[TX]
Microphone connector | – |
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| Audio | |
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| generator | |
MIC GND | MIC INPUT |
| AC |
1 | 8 |
| millivoltmeter |
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| GND |
| PTT |
JIG CABLE
4 - 1