Yaesu FTM-350AE, Техническое дополнение

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12
FTM-350AR/E Technical Supplement
PLL Reference Frequency
1. Set the transceiver frequency to 440.000 MHz.
2. Press the [
POW
] key to select "LOW".
3. Press the [ ADJ
] key to set the alignment Menu
Item “
REFA xxx REFA xxx
REFA xxx REFA xxx
REFA xxx
”.
4. Press the PTT switch to activate the transmitter,
adjust the left DIAL knob, if necessary, so the
counter frequency is within 100 Hz of 440.000
MHz.
5. Press and hold in the [ ADJ
] key for one second,
to set the alignment Menu Item “
REFB xxx REFB xxx
REFB xxx REFB xxx
REFB xxx
”.
6. Set the transceiver frequency to 440.050 MHz.
7. Press the [
SET
] key to enter the SET mode.
8. Rotate the left DIAL knob to select Menu Item "TX/
RX".
9. Press the left DIAL knob, then rotate the left DIAL
knob to select "B08 WIDE/NARROW AUTO".
10.Press the left
DIAL
knob, then rotate the left
DIAL
knob to select "AUTO (FM)".
11.Press the [
ESC
] key repeatedly, to save the new
setting.
12.Connect the frequency counter fed through the
0.001 μ F capactor to the TP1303.
13.Adjust the left
DIAL
knob, as needed, so that the
counter frequency reading is 395.200 MHz (±100
Hz).
RF Front-end Tuning
1. Connect the DC voltmeter to TP1401 (MAIN) and
TP1601
(SUB) on the MAIN unit, then inject a
439.050 MHz signal at a level of +10 dB μ V (with 1
kHz modulation ± 3.5 kHz deviation) from the
RF signal generator.
2. Set the transceiver frequency to 439.050 MHz.
3. Press the [
ADJ
] key to set the alignment Menu
Item “ TUNA xxx TUNA xxx
TUNA xxx TUNA xxx TUNA xxx
”.
4. Adjust the left DIAL knob for maximum deflec-
tion on the DC Voltmeter and then turn the dial
in the opposite direction until the meter deflec-
tion drops slightly lower than maximum.
5. Set the transceiver and RF signal generator fre-
quency to 145.050 MHz.
6. Adjust the left DIAL knob for maximum deflec-
tion on the DC Voltmeter and then turn the dial
in the opposite direction until the meter deflec-
tion drops slightly lower than maximum.
7. Set the RF signal generator frequency to 439.050
MHz.
Alignment
8. Set the transceiver frequency to 439.050 MHz of
the SUB Band.
9. Press and hold in the [ ADJ
] key to set the align-
ment Menu Item “
TUNB xxx TUNB xxx TUNB xxx TUNB xxx TUNB xxx
”.
10.Adjust the left DIAL knob for maximum deflec-
tion on the DC Voltmeter and then turn the dial
in the opposite direction until the meter deflec-
tion drops slightly lower than maximum.
11.Set the transceiver and RF signal generator fre-
quency to 145.050 MHz.
12.Adjust the left DIAL knob for maximum deflec-
tion on the DC Voltmeter and then turn the dial
in the opposite direction until the meter deflec-
tion drops slightly lower than maximum.
Squelch Threshold Level
1. Set the RF signal generator to 440.050 MHz. Set
the generator for ±3.5 kHz deviation of a 1 kHz
modulation tone, and set the RF output level from
the signal generator to -12 dB
μ V.
2. Set the transceiver frequency to 440.050 MHz.
3. Press the [
SET
] key to enter the SET mode.
4. Rotate the left DIAL knob to select Menu Item "TX/
RX".
5. Press the left DIAL knob, then rotate the left DIAL
knob to select "B08 WIDE/NARROW AUTO".
6. Press the left DIAL knob, then rotate the left DIAL
knob to select "AUTO (FM)".
7. Press the [ ESC
] key repeatedly, to save the new
setting and exit the Menu mode.
8. Press the [ ADJ
] key to set the alignment Menu
Item “
SQLA U D SQLA U D SQLA U D SQLA U D SQLA U D
”.
9. Press the [ BCK
] key to save the new setting.
10.Increase the output level of the signal generator
up to -4 dB μ V.
11.Press the [
FWD
] key to save the new setting.
12.Set the transceiver and RF signal generator fre-
quency to 146.050 MHz.
13.Increase the output level of the signal generator
up to -12 dB μ V.
14.Press the [ ADJ
] key to set the alignment Menu
Item “ SQLA U D SQLA U D
SQLA U D SQLA U D SQLA U D
”.
15.Press the [ BCK
] key to save the new setting.
16.Increase the output level of the signal generator
up to -4 dB μ V.
17.Press the [ FWD
] key to save the new setting.