Yaesu FTM-400DR/DE, Техническое дополнение

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FTM-400DR/DE Technical Supplement
Alignment
ALIGNMENT-5
PLL Reference Frequency Adjustment
1. Press the [
P1
] key of the Microphone to set the
alignment menu Item to " Adj 00 REF/A ".
2. Set the transceiver frequency to 435.050 MHz.
3. Press the [
F
(
MW
)
] key, then press the [
Tx PWR
]
to select " LO ".
4. Press the [
F
(
MW
)
] key.
5. Press the
PTT
switch to activate the transmit-
ter, adjust the
DIAL
knob (Band B), if necessary,
so the counter frequency is within 100 Hz of
435.050MHz.
6. Press the [
P2
] key of the Microphone to set the
alignment menu Item to " Adj 00 REF/B ".
7. Connect the frequency counter fed through
the0.001μF capactor to the
TP1501
.
8. Adjust adjust the
DIAL
knob (Band B), as need-
ed, so that thecounter frequency reading is
390.200 MHz (±100Hz).
RF Front-end Tuning
1. Connect the DC voltmeter to
TP1001
(BAND
A) and
TP1002
(BAND B) on the MAIN unit,
then inject a 439.050 MHz signal at a level of +10
dBμV (with 1kHz modulation ± 3.5 kHz devia-
tion) from the RF signal generator.
2. Set the transceiver frequency to 439.050 MHz.
3. Press the [
P1
] key of the Microphone to set the
alignment menu Item to " Adj 01 TUN/A ".
4. Adjust the
DIAL
knob (Band B) for maximum
deflection on the DC Voltmeter and then turn
the dialin the opposite direction until the meter
deflection drops slightly lower than maximum.
5. Set the transceiver and RF signal generator fre-
quency to 145.050 MHz.
6. Adjust the
DIAL
knob (Band B) for maximum
deflection on the DC Voltmeter and then turn
the dialin the opposite direction until the meter
deflection drops slightly lower than maximum.
7. Set the RF signal generator frequency to
439.050MHz.
8. Set the transceiver frequency to 439.050 MHz of
the Band B.
9. Press the [
P2
] key of the Microphone to set the
alignment menu Item to " Adj 01 TUN/B ".
10. Adjust the
DIAL
knob (Band B) for maximum
deflection on the DC Voltmeter and then turn
the dialin the opposite direction until the meter
deflection drops slightly lower than maximum.
11. Set the transceiver and RF signal generator fre-
quency to 145.050 MHz.
12. Adjust the
DIAL
knob (Band B) for maximum
deflection on the DC Voltmeter and then turn
the dialin the opposite direction until the meter
deflection drops slightly lower than maximum.
TP1501 TP1001 TP1002