Unit Description; Ic-440N Front And Rear Panels - Icom IC-440N Instruction Manual

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UNIT DESCRIPTION

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IC-440N Front and rear panels

w
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
Front panel
q
Rear panel
e r
battery or DC power supply)
w 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.
e EXTERNAL SPEAKER JACK [SP]
Connects a 4  speaker. (p. 4)
• Audio output power is typically 5.0 W.
r ANTENNA CONNECTOR
Connects a 50  antenna with a PL-259 connector and a
50  coaxial cable.
ANTENNA INFORMATION
For radio communications, the antenna is of critical impor-
tance, to maximize your output power and receiver sensitiv-
ity. The transceiver accepts a 50  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.