Yaesu FT-7800R, Техническое дополнение

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CTCSS TX Deviation
1. Tune the frequency to 440.050 MHz, then activate the
CTCSS Encoder with a “100 Hz” tone, and set the
Transmit Power Level to “LOW.”
2. Press the [ BAND
(
SET
)] key while press and holding
the [
] key to set the Alignment parameter to “
A-5
CTC.xxH
.”
3. Press the PTT switch to activate the transmitter (with
no microphone input), and adjust the DIAL knob
while pressing and holding in the [
] key, if needed,
so that the deviation meter reading is between 0.65
kHz and 0.75 kHz.
4. Tune the frequency to 146.050 MHz, then activate the
CTCSS Encoder with a “100 Hz” tone, and set the
Transmit Power Level to “LOW.”
5. Press the PTT switch to activate the transmitter (with
no microphone input), and adjust the DIAL knob while
pressing and holding in the [
] key, if needed, so that
the deviation meter reading is between 0.65 kHz and
0.75 kHz.
Center Meter Sensitivity
1. Tune the frequency to 440.050 MHz.
2. Press the [
BAND
(
SET
)] key while press and holding
the [
] key to set the Alignment parameter to “
A-6
CNTL
/
V
.”
3. Inject a 1 kHz audio tone at a level of +10 dBµ from
the Audio Generator.
4. Press the [ LOW
(
ACC
)] key while press and holding
the [
] key.
S-Meter Sensitivity
1. Tune the frequency to 440.050 MHz.
2. Press the [
BAND
(
SET
)] key while press and holding
the [
] key to set the Alignment parameter to “
A-7
SM L
/
V
.”
3. Inject a 440.050 MHz signal at a level of –5 dBµ (with
1 kHz modulation @±3.5 kHz deviation) from the RF
Signal Generator.
4. Press the [ LOW
(
ACC
)] key while pressing and hold-
ing in the [
] key.
5. Increase the RF Signal Generator output level to +23
dBµ.
6. Press the [ V/M
(
MW
)] key while pressing and holding
in the [
] key.
7. Tune the frequency to 146.050 MHz.
8. Inject a 146.050 MHz signal at a level of –5 dBµ (with
1 kHz modulation @±3.5 kHz deviation) from the RF
Signal Generator.
9. Press the [ LOW
(
ACC
)] key while pressing and hold-
ing in the [
] key.
10. Increase the RF Signal Generator output level to +23
dBµ.
11. Press the [ V/M
(
MW
)] key while pressing and holding
in the [
] key.
12. Tune the frequency to 230.050 MHz.
13. Inject a 230.050 MHz signal at a level of –5 dBµ (with
1 kHz modulation @±3.5 kHz deviation) from the RF
Signal Generator.
14. Press the [ LOW
(
ACC
)] key while pressing and hold-
ing in the [
] key.
15. Increase the RF Signal Generator output level to +23
dBµ.
16. Press the [ V/M
(
MW
)] key while pressing and holding
in the [
] key.
17. Tune the frequency to 850.050 MHz.
18. Inject a 850.050 MHz signal at a level of +3 dBµ (with
1 kHz modulation @±3.5 kHz deviation) from the RF
Signal Generator.
19. Press the [ LOW
(
ACC
)] key while pressing and hold-
ing in the [
] key.
20. Increase the RF Signal Generator output level to +31
dBµ.
21. Press the [ V/M
(
MW
)] key while pressing and holding
in the [
] key.
DC Voltmeter
1. Set the power supply voltage to 13.8 VDC.
2. Press the [
BAND
(
SET
)] key while pressing and hold-
ing in the [
] key to set the Alignment parameter to
“
A-8 BAT SC
.”
3. Press the [ SCAN
(
SEL
)] key.
To close the Alignment mode, just press and hold in the
PWR switch for 0.5 seconds (to turn the power off). The
next time the transceiver is turned on, normal operation
may resume.
Alignment
E-4