Section V Operation - Icom IC-280E Instruction Manual

SECTION V OPERATION -
Initial Preparations:
Make sure the VOL Control and Power ON/OFF Switch is in the OFF position, then connect the
power supply cord to the power connector. The red lead should be connected to the positive side
of the power source and the black lead to the negative side. In the event that these leads are
improperly connected, the transceiver will not function. Reversing polarity will blow out the fuse
in the power supply cord due to actuation of the protective circuit.
Connect the microphone to the MIC Connector.
Connect the antenna to the Antenna Connector. Make sure the coax line is of the correct
impedance (50 ohms) and is neither shorted nor open.
Turn the squelch control to the maximum counter-clockwise position.
RECEIVING
Set the controls and switches as follows:
(MEMORY CHANNEL SWITCH "D" position
@ SOL Control and High/Low Power Switch completely CCW
(Others may be at any position or setting.)
Turn the VOL control clockwise (it will "click" ON) and the meter will illuminate with the
frequency display showing "5.00" for 145.00MHz.
Turn the VOL control clockwise to a comfortable audio level.
If no signal can be heard but only noise, turn the SOL control clockwise until the noise from the
speaker stops and set it just below this threshold.
(When adjusting the SOL control setting, if
Turn the tuning control to the desired frequency.
TRANSMITTING
Set the controls and switches as follows:
@DUPLEX/SIMPLEX SWITCH (see below)
@DUPLEX MODE SWITCH (see below)
(8) Tuning control desired frequency
For simplex operation, set @ DUPLEX/SIMPLEX SWITCH at the SIMPLEX position, making 4)
DUPLEX MODE SWITCH nonfunctioning.
For repeater operation, set @ DUPLEX/SIMPLEX SWITCH at DUPLEX and select whether the
transmitting frequency is to be 600KHz above or below the receiving frequency. The —600KHz
1$ normal for most repeaters.