Icom IC-M804 Instruction Manual - Page 67

Connections, Basic connections

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8 CONNECTIONS AND INSTALLATION ■■Connections DDBasic connections SP-24E (Option) Microphone HF antenna (for DSC reception) Ferrite EMI filter (p. 65) Ground (p. 61) Ground (p. 61) 12 V or 24 V battery [DC ISOLATE] Main unit 8 AT-141 Remote Controller CAUTION: •• After connecting an antenna, tuner control cables, external speaker, or GPS receiver, cover the connectors with a rubber vulcanizing tape, as shown below, to prevent water from seeping into the connection. •• DO NOT pull on the antenna and control cable receptacles. It may cause cable disconnection (in the tuner unit), damage inside the connector, or a bad connection. NOTE: •• When an external speaker is connected, the internal speaker is automatically muted. •• Turn OFF [DC ISOLATE] on the Main unit, or charge the battery while at anchor. Otherwise, the battery may become exhausted. The IC-M804 has a high-stability oven heater type crystal oscillator, and the oscillator's heater is directly connected to the DC power terminals. It keeps its temperature at a specified level, even if you turn OFF the power by holding down [ ] on the remote controller. Rubber vulcanizing tape 62

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62
CONNECTIONS AND INSTALLATION
8
8
AT-141
Main unit
SP-24E
(Option)
HF antenna
(for DSC reception)
Ferrite EMI
filter (p. 65)
12 V or 24 V
battery
Ground
(p. 61)
Ground
(p. 61)
Remote Controller
Rubber vulcanizing tape
■
Connections
D
Basic connections
CAUTION:
•
After connecting an antenna, tuner control cables,
external speaker, or GPS receiver, cover the
connectors with a rubber vulcanizing tape, as
shown below, to prevent water from seeping into
the connection.
•
DO NOT
pull on the antenna and control cable
receptacles. It may cause cable disconnection (in
the tuner unit), damage inside the connector, or a
bad connection.
[DC ISOLATE]
Microphone
NOTE:
•
When an external speaker is connected,
the internal speaker is automatically muted.
•
Turn OFF [DC ISOLATE] on the Main unit, or
charge the battery while at anchor. Otherwise, the
battery may become exhausted.
The IC-M804 has a high-stability oven heater
type crystal oscillator, and the oscillator’s heater
is directly connected to the DC power terminals.
It keeps its temperature at a specified level, even
if you turn OFF the power by holding down [
] on
the remote controller.