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Operation - Icom IC-28A Instruction Manual

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SECTION
5 OPERATION
5-1
BASIC
OPERATION
Ш RECEIVING
1) Push VOL/PWR CONTROL.
1) Push the VOL/PWR CONTROL to turn ON the power.
e The green T/R
INDICATOR
lights and the LCD
READOUT
displays the frequency and memory channel number last used.
elf the MEMORY
mode
was being used immediately
prior to
turning off the power to the IC-28A/E, the MEMORY
mode is
|
retained
and the last used memory
channel
number
апа соп-
|
tents of that memory appear.
|
3) Adjust squelch level.
3) Slowly
turn
the
SOL/CHK
.CONTROL
clockwise
until
the
|
received noise is quieted.
ePerform
this setting only on a vacant frequency
(no received
li
;
signal).
|
e The green T/R INDICATOR goes out.
|
eSetting
the squelch
in this manner
mutes all sound from the
speaker until a signal is received.
On receiving a signal, it opens
the squelch circuit and the signal is audible.
eDo
not advance the SOL/CHK
CONTROL
beyond the point
where the green T/R INDICATOR
goes out or weak signals will
not be heard.
4) Select operating frequency.
4) Select the desired operating frequency by using either the TUN-
Г
И
ING CONTROL,
ог the UP or DN SWITCH
on the microphone.
elf the letter "М"
appears
on the display below the memory
channel
number, push the VFO side of the VER
SWITCH
А
|
Р
to clear the MEMORY
mode.
A strong signal being received at
144.750MHz.
The duplex mode
e When a signal is received, the green T/R INDICATOR
lights, the
and optional digital code squelch
S/RF INDICATOR
displays the signal strength and the audio is
are activated.
heard from the speaker.
eSELECTING
A FREQUENCY
Select the VFO mode by using the VFO/MR
SWITCH.
Select your
desired frequency by the following procedure.
(А) USING
THE
TUNING
CONTROL
1) Use DOWN/UP
SWITCH
to set
1) Use the DOWN/UP SWITCH on the front panel to select the cor-
correct MHz
digit.
rect MHz
range.
e Each time this switch is pushed, the frequency changes by 1MHz
down or up.

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This manual is also suitable for:

Ic-28e