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11
Squelch Threshold Level
Inject a 435.100 MHz signal at a level of –14 dBµ
(with 1 kHz modulation @±3.5 kHz deviation)
from the RF signal generator.
Rotate the
SQL
knob to the 10-o’clock position.
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.100 tL
435.100 tL
435.100 tL
435.100 tL
435.100 tL
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “Squelch Threshold Level.”
Press the [
D/MR
(
MW
)] key three times.
Press the [
D/MR
(
MW
)] key.
S-meter Level (S-1)
Inject a 435.100 MHz signal at a level of –5 dBµ
(with 1 kHz modulation @±3.5 kHz deviation)
from the RF signal generator.
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.100 S1
435.100 S1
435.100 S1
435.100 S1
435.100 S1
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “S-meter Level (S-1).”
Press the [
D/MR
(
MW
)] key three times.
Press the [
D/MR
(
MW
)] key.
S-meter Level (S-9)
Inject a 435.100 MHz signal at a level of +23 dBµ
(with 1 kHz modulation @±3.5 kHz deviation)
from the RF signal generator.
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.100 S9
435.100 S9
435.100 S9
435.100 S9
435.100 S9
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “S-meter Level (S-9).”
Press the [
D/MR
(
MW
)] key three times.
Press the [
D/MR
(
MW
)] key.
TX Power (High)
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.000 HP
435.000 HP
435.000 HP
435.000 HP
435.000 HP
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “TX Power (High).”
Press the
PTT
switch to activate the transmitter,
adjust the
DIAL
knob so that the RF Power Meter
reading is 50 W (±1.0W).
Press the [
D/MR
(
MW
)] key.
TX Power (Low 3)
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.000 L3
435.000 L3
435.000 L3
435.000 L3
435.000 L3
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “TX Power (Low 3).”
Press the
PTT
switch to activate the transmitter,
adjust the
DIAL
knob so that the RF Power Meter
reading is 25 W (±1.0 W).
Press the [
D/MR
(
MW
)] key.
TX Power (Low 2)
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.000 L2
435.000 L2
435.000 L2
435.000 L2
435.000 L2
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “TX Power (Low 2).”
Press the
PTT
switch to activate the transmitter,
adjust the
DIAL
knob so that the RF Power Meter
reading is 10 W (±0.5 W).
Press the [
D/MR
(
MW
)] key.
TX Power (Low 1)
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.000 L1
435.000 L1
435.000 L1
435.000 L1
435.000 L1
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “TX Power (Low 1).”
Press the
PTT
switch to activate the transmitter,
adjust the
DIAL
knob so that the RF Power Meter
reading is 5 W (±0.5 W).
Press the [
D/MR
(
MW
)] key.
TX Deviation
Inject a 1 kHz, 50 mV signal from the Audio Gen-
erator.
Rotate the
DIAL
knob to set the alignment param-
eter to “
435.000 dU
435.000 dU
435.000 dU
435.000 dU
435.000 dU
.”
Press the [
D/MR
(
MW
)] key to enable adjustment
of the “TX Deviation.”
Press the
PTT
switch to activate the transmitter,
adjust the
DIAL
knob so that the Deviation Meter
reading is 4.2 kHz (±0.1 kHz).
Press the [
D/MR
(
MW
)] key.
Alignment
Содержание FT-1807M
Страница 4: ...4 Note ...
Страница 5: ...5 Block Diagram ...
Страница 6: ...6 Connection Diagram ...
Страница 14: ...14 MAIN Unit Note ...
Страница 26: ...26 Note MAIN Unit ...
Страница 32: ...32 Note CNTL Unit ...
Страница 33: ......