Icom IC-25A Instruction Manual page 9

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. SCAN START/STOP BUTTON
Starts and stops any of the scan functions. When depressing it again to restart the scan, it will
start from the stopped memory channel or frequency.
. MEMORY/VFO WRITE BUTTON
By pushing this button, VFO A's frequency is written into a memory channel, or one МЕО 5
frequency is transfered to the other VFO.
. VOLUME CONTROL and POWER SWITCH
When the control is turned completely counterclockwise, the power is OFF. By turning the
control clockwise beyond the "click", the unit is turned ON and the audio level increases by
further rotating it clockwise.
SQUELCH CONTROL and RF POWER SWITCH
Turning this control clockwise sets the squelch threshold higher. To turn OFF the squelch
function, turn this control completely counterclockwise. _ _
By pulling the Squelch control knob, the RF output power is reduced to 1 watt. By depress-
ing the knob to the normal position, the RF output power returns to 25 watts.
. MIC CONNECTOR
Connect the supplied microphone to this jack. If you wish to use a different microphone,
refer to the drawing on page 5.
PRIORITY INDICATOR
illuminates when the priority function is turned ON.
PRIORITY BUTTON
Turns the priority function ON and OFF.
During a О50 or receiving with VFO, if you would like to watch your favorite channel or a
calling channel, that is busy or empty, set the memory channel switch to the favorite or call-
ing channel which is memorized in a memory channel, and push the priority button, and the
receiving frequency will go to the channel a moment at every five seconds.
FREQUENCY DISPLAY |
The three large 7 segment LED's represent the digits between 1MHz and 10KHz and an LED
for 5K Hz of the operating frequency. The frequency indicated is the carrier frequency.
TRANSMIT INDICATOR
illuminates in the transmit mode.
RECEIVE INDICATOR
illuminates when the squelch is opened in the receive mode.
SIMPLEX/DUPLEX SWITCH
Selects the SIMPLEX operation or the DUPLEX (repeater) operation.
DUPLEX MODE SWITCH
Selects the relationship of the receiving frequency and the transmitting frequency in the
duplex mode.