Icom IC-V85, Руководство по обслуживанию, Страница: 13 / 29

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ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITION OPERATION VALUE
REFERENCE
FREQUENCY
[Fr] 1 •
•
•
Connect a RF Power Meter or a dummy
load to the antenna connector.
Loosely couple a Frequency Counter to
the antenna connector.
Transmitting Rotate [CONTROL DIAL] during transmit to
adjust the frequency, then release the [PTT] and
push [CLR] key to store the adjustment value
and select the next adjustment item.
146.00000 MHz
LOCK
VOLTAGE
[LU] 1 •
•
Connect an RF Power Meter to the
antenna connector.
Transmitting
Push
[CLR]
key during transmit, then push [
Y
]
to select the next adjustment item.
(automatic
adjustment)
TRANSMIT
OUTPUT
POWER
[Po]
(H; High) 1 •
•
Connect an RF Power Meter to the
antenna connector.
Transmitting Rotate [CONTROL DIAL] during transmit
to adjust the output power, then release the
[PTT] and push
[CLR]
key during transmit to
store the adjustment value and select the next
adjustment item.
7.0 W
except [THA]
5.5 W
[THA]
(M; Middle) 2 • Transmitting 4.0 W
(L; Low) 3 • Transmitting 0.5 W
DEVIATION
[dE] NOTE: “REFERENCE FREQUENCY” should be adjusted before “DEVIATION.”
Otherwise, “DEVIATION” will not be adjusted properly.
1 •
•
•
Connect an Audio Generator and AC
millivoltmeter to the MIC line (see page
5-1) and set as;
Frequency : 1 kHz
Level : 90 mVrms
Connect a Modulation Analyzer to
the antenna connector through an
attenuator, and set as;
HPF
: OFF
LPF : 20 kHz
De-emphasis : OFF
Detector : (P–P)/2
Transmitting
Rotate [CONTROL DIAL] during transmit to
adjust the deviation, then release the [PTT] and
push [CLR] key to store the adjustment value
and select the next adjustment item.
±4.2 kHz
[dP]* Push [
Y
] to skip this item. –
DTCS
MODULATION
BALANCE
[dt] NOTE: “"DEVIATION” should be adjusted before “DTCS MODULATION BALANCE.”
Otherwise, “DTCS MODULATION BALANCE” will not be adjusted properly.
1 •
•
•
•
Set the Modulation Analyzer same as
“DEVIATION.”
Connect an Oscilloscope to the detector
output ter minal of the Modulation
Analyzer.
No audio signal is applied to the MIC line.
Transmitting Rotate [CONTROL DIAL] during transmit
to arrange the wave form, then release the
[PTT] and push [CLR] key during transmit to
store the adjustment value and select the next
adjustment item.
Set to square
wave form
[bP]* Push [
Y
] to skip this item. –
RECEIVE
SENSITIVITY
[tr]
(Band low) NOTE: “REFERENCE FREQUENCY” should be adjusted before “RECEIVE SENSITIVITY.”
Otherwise, “RECEIVE SENSITIVITY” will not be adjusted properly.
1 •
•
Connect an SSG to the antenna connector
and set as;
Frequency : Displayed frequency
Level : 0 dBµ (−107 dBm)
Modulation : 1 kHz
Deviation : ±3.5 kHz
Receiving
Push [CLR] key to store the adjustment value
and select the next adjustment item.
(automatic
adjustment)
(Band center) 2 •
•
Set the SSG as;
Frequency : Displayed frequency
Receiving
Push [CLR] key to store the adjustment value
and select the next adjustment item.
(Band high) 3 •
•
Set the SSG as;
Frequency : Displayed frequency
Receiving
Push [CLR] key to store the adjustment value
and select the next adjustment item.
SQUELCH
[Sq] 1 •
•
•
Connect an 8
Ω
spaeker to the AFOUT
line (see page 5-1).
Set the SSG as;
Level
: −19 dBµ (−126 dBm)
Receiving
Rotate [CONTROL DIAL] to close the squelch
once, then rotate [CONTROL DIAL] to set
the squelch level at the point where the audio
signals just appear.
Push [CLR] key to store the adjustment value
and select the next adjustment item.
Squelch open
5 - 3
*; These items MUST NOT be modifi ed. Otherwise, the transceiver will not perform properly.
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