4-4
4-2 FREQUENCY ADJUSTMENTS
1) Select an adjustment item by pushing [CLR]/[MR].
2)Setormodifytheadjustmentvalueasspeciedbypush[
▲
]/[
▼
], and then push [ENT].
ADJUSTMENT
ADJUSTMENT
ITEM NAME
TRANSCEIVER’S
CONDITION
OPER ATION VALUE
REFERENCE
FREQUENCY
1 FR • Frequency: 136.975 MHz
• Transmitting
• Connect the RF power meter to the
antenna connector.
• Loosely couple the frequency
counter to the antenna connector
• No audio applied to [MIC].
136.975 MHz
(±100 Hz)
ADJUSTMENT
ADJUSTMENT
ITEM NAME
TRANSCEIVER’S
CONDITION
OPER ATION VALUE
TX OUTPUT
POWER
1 RF • Frequency: 118.000 MHz
• Transmitting
• Attach the fully charged battery
pack (7.2 V).
• Connect the RF power meter to the
antenna connector.
• No audio applied to [MIC].
1.8 W
2 • Frequency: 127.500 MHz
• Transmitting
3 • Frequency: 136.975 MHz
• Transmitting
MODULATION
(Maximum)
1 MM • Frequency: 118.000 MHz
• Transmitting
• Attach the fully charged battery
pack (7.2 V).
• Connect the modulation analyzer to
the antenna connector through the
30 dB attenuator, and set it to:
HPF: OFF
LPF: 20 kHz
De-emphasis: OFF
Detector: (P–P)/2
• Connect the audio generator to
[MIC], and set it to:
Frequency: 1 kHz
Waveform: Sine wave
Level: 200 mV rms
90% (±2%)
2 • Frequency: 127.500 MHz
• Transmitting
3 • Frequency: 136.975 MHz
• Transmitting
(Standard) 4 M3 • Frequency: 118.000 MHz
• Transmitting
• Set the audio generator as:
Level: 20 mV rms
30% (±2%)
5 • Frequency: 127.500 MHz
• Transmitting
6 • Frequency: 136.975 MHz
• Transmitting
4-3 TRANSMIT ADJUSTMENTS
1) Select an adjustment item by pushing [CLR]/[MR].
2)Setormodifytheadjustmentvalueasspeciedbypush[
▲
]/[
▼
], and then push [ENT].
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