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Icom IC-7851 - Page 26

Icom IC-7851
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1-10
1
PANEL DESCRIPTION
^5 LOCK KEY [LOCK] (p. 4-12)
Push to turn the Dial lock function ON or OFF.
^6 QUICK TUNING KEY [TS]
Push to turn the Quick Tuning step function ON or
OFF. (p. 4-7)
While the Quick Tuning icon, “Z,” is displayed above
the frequency readout, the frequency can be changed
in selected kHz steps.
0.1, 1, 5, 9, 10, 12.5, 20 and 25 kHz steps can be
independently set for each operating mode.
When the Quick tuning step is OFF, hold down
for 1 second to turn the 1 Hz tuning step ON or
OFF. (p. 4-8)
When the Quick Tuning step is ON, hold down
for 1 second to enter the Quick Tuning step set
screen. (p. 4-7)
^7 CLEAR KEY [CLEAR] (pp. 7-3, 8-5)
You can clear the RIT/TX shift frequency by hold-
ing down for 1 second or pushing, depending on the
quick RIT/TX clear function setting (p. ?12-18).
^8 TX KEY [TX] (p. 8-5)
Push to turn the TX function ON or OFF.
Rotate the [RIT/TX] control to vary the TX fre-
quency.
Hold down for 1 second to add the TX shift fre-
quency to the operating frequency.
What is the TX function?
TX shifts the transmit frequency without shifting the
receive frequency. This is useful for simple split fre-
quency operation in CW, and so on.
^9 RIT KEY [RIT] (p. 7-3)
Push to turn the RIT function ON or OFF.
Rotate the [RIT/TX] control to vary the RIT frequen-
cy.
Hold down for 1 second to add the RIT shift fre-
quency to the operating frequency.
What is the RIT function?
Receiver incremental tuning (RIT) shifts the receive
frequency without shifting the transmit frequency.
This is useful for fine tuning stations calling you on
off-frequency or when you prefer to listen to slightly
different-sounding voice characteristics, and so on.
&0 CW PITCH CONTROL [CW PITCH] (p. 5-6)
Shifts the received CW audio pitch and the CW side
tone pitch without changing the operating frequency.
&1 MANUAL NOTCH FILTER CONTROL [NOTCH]
(p. 7-13)
Varies the “valley” frequency of the manual notch
filter to reject an interfering signal while the manual
notch function is ON.
• Notch lter center frequency:
SSB : –1060 Hz ~ 4040 Hz
CW : CW pitch frequency + 2540 Hz ~ CW pitch
frequency –2540 Hz
AM : –5100 Hz ~ 5100 Hz
&2 DIGITAL RF SELECTOR CONTROL [DIGI-SEL]
(p. 7-12)
Adjusts the digital RF selector center frequency.
The control can be reassigned as the Audio peak lter
adjustment (p. 15-15)
Front panel (Continued)
&5 &4
&2
&3
&1
&0
^7
^8
^9
^6
^5

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