ICOM 370500 Manuale Utente
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INSTALLATION AND CONNECTIONS
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Unpacking
After unpacking, immediately report any damage to
the delivering carrier or dealer. Keep the shipping car-
tons.
the delivering carrier or dealer. Keep the shipping car-
tons.
For a description and a diagram of accessory equip-
ment included with the repeater, see ‘SUPPLIED AC-
CESSORIES’ on page i of this manual.
ment included with the repeater, see ‘SUPPLIED AC-
CESSORIES’ on page i of this manual.
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Selecting a location
Select a location for the repeater that allows adequate
air circulation, free from extreme heat, cold, or vibra-
tions, and away from TV sets, TV antenna elements,
radios and other electromagnetic sources.
air circulation, free from extreme heat, cold, or vibra-
tions, and away from TV sets, TV antenna elements,
radios and other electromagnetic sources.
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Antenna connection
For radio communications, the antenna is a critical
component, along with output power and sensitivity.
Select antenna(s), such as a well-matched 50 ø an-
tenna, and feedline. 1.5:1 or better of Voltage Stand-
ing Wave Ratio (VSWR) is recommended for desired
band. Of course, the transmission line should be a
coaxial cable.
component, along with output power and sensitivity.
Select antenna(s), such as a well-matched 50 ø an-
tenna, and feedline. 1.5:1 or better of Voltage Stand-
ing Wave Ratio (VSWR) is recommended for desired
band. Of course, the transmission line should be a
coaxial cable.
CAUTION: Protect repeater from lightning by using
a lightning arrestor.
a lightning arrestor.
NOTE: There are many publications that describe
proper antennas and their installation. Check with
your local dealer for more information and recom-
mendations.
proper antennas and their installation. Check with
your local dealer for more information and recom-
mendations.
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Front panel connection
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0
P
1
P
2
P
3
P
4
SM-26 DESKTOP
MICROPHONE
(optional)
MICROPHONE CONNECTOR (Front panel view)
HM-152 HAND
MICROPHONE
(optional)
q
i
CAUTION: DO NOT short pin 1 to ground as this can
damage the internal 8 V regulator. DC voltage is applied
to pin 1 for microphone operation. Only Icom micro-
phones are recommended.
q
+8 V DC output (Maximum15 mA)
w
Output port for PC programming
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NC
r
M PTT (Input port for TX control)
t
Microphone ground
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Microphone input
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Ground
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Input port for PC programming