Unit Description; Front And Rear Panels - Icom ic-450 Instruction Manual

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UNIT DESCRIPTION

■ Front and rear panels

w e
q MICROPHONE CONNECTOR
Connects the supplied microphone or cloning cable
(OPC-1122U.)
q DC output (same voltage as connected
w TX line
e GND
i q
r PTT
t GND (microphone ground)
y AF line
Front panel view
u POWER
i RX line
6
i450
q
r t
battery or DC power supply)
w EXTERNAL SPEAKER JACK [SP]
Connects a 4 Ω speaker. (p. 4)
• Audio output power is typically 5 W.
e POWER RECEPTACLE
A ccepts 13.8 V or 27.6 V DC with the supplied DC power
cable.
+ red
_ black
NOTE: DO NOT use a cigarette lighter socket as a power
source when operating in a vehicle. The plug may cause
voltage drops and ignition noise may be superimposed
onto transmit or receive audio.
r IGNITION LEAD
Connects to an ignition line.
R DO NOT put a pressure to this lead.
t ANTENNA CONNECTOR
Connects a 50 Ω antenna with a PL-259 connector and a
50 Ω coaxial cable.
ANTENNA INFORMATION
For radio communications, the antenna is of critical
importance, to maximize your output power and receiver
sensitivity. The transceiver accepts a 50 Ω antenna and a
less than 1:1.5 Voltage Standing Wave Ratio (VSWR).
High SWR values not only may damage the transceiver,
but also lead to TVI or BCI problems.