Icom Ic-207h Vhf Uhf Tranciever Instruction Manual

14OTHER FUNCTIONS
66
DAdjusting the transmit signal output from
the TNC
When setting data transmission speed to 9600 bps, the DATA
signal coming from the TNC is applied exclusively to the in-
ternal limiter circuitry to automatically maintain band width.
NEVER apply data levels from the TNC of over 0.6 Vp-p, oth-
erwise the transceiver will not be able to maintain the band
width and may possibly interfere with other stations.
1. When using a level meter or synchroscope, adjust the TX
audio output level...

MAINTENANCE15
67
TroubleshootingIf your transceiver seems to be malfunctioning, please check
the following points before sending it to a service center.
PROBLEMPOSSIBLE CAUSESOLUTIONREF.
No power comes on.•Power connector has a poor contact.
•Polarity of the power connection is reversed.
•Blown fuse.•Check the connector pins.
•Reconnect the power cable observing the
proper polarity. Replace the fuse, if damaged.
•Check the cause, then replace the fuse.—
pgs.
13, 69
p. 69
No sound comes from the...

15MAINTENANCE
68
PROBLEMPOSSIBLE CAUSESOLUTIONREF.
Some memory channels
cannot be selected via the
microphone keypad.•The input channel number has not yet been pro-
grammed.•Rotate the tuning dial to check whether the
channel has been programmed or not.p.29
Scan does not operate.•Squelch is open.
•The selected scan edge memory channels (e.g.
1 A and 1b) have the same frequencies (for pro-
grammed scan).
•Only 1 memory channel is programmed or other
channels are set as skip channels.
•Priority watch is...

15MAINTENANCE
69
Fuse replacement
If the fuse blows or the transceiver stops functioning, find the
source of the problem if possible, and replace the damaged
fuse with a new, rated one (FGB 20 A) as shown in the dia-
gram below.
Partial resetting
If you want to initialize the operating conditions without clear-
ing the memory contents, etc., a partial reset function is avail-
able for the transceiver.
While pushing [V/MHz], turn power ON to partially reset the
transceiver.
➧Initialized settings:VFO...

SPECIFICATIONS16
70
General
•Frequency coverage
VERSIONVHFUHF
144–148 MHz440–450 MHz
Asia144–148 MHz430–440 MHz
Europe144–146 MHz430–440 MHz
Italy144–148 MHz430–440 MHz
Tx
Rx136–174 MHz*1
Tx
Rx136–174 MHz*1400–479 MHz*2
*1Guaranteed frequency coverage is 144–148 MHz.
*2Guaranteed frequency coverage is 430–440 MHz.
•Mode : FM, AM*
(*U.S.A. ver. only; 118–135.995 MHz)
•Antenna impedance : 50 Ω(SO-239)
•Scanning speed : 16 ch/sec. (programmed scan)
8 ch/sec. (memory scan)
•Power supply requirement : 13.8 V...

OPTIONS17
71Some of the following options may not be available due to
variations in local electrical standards, etc. If you have any
questions regarding options please consult your Icom Dealer.
DSpeakers
SP-7 EXTERNAL SPEAKER
For base station use. Cable length: 1.0 m; 3.3 ft
SP-10 EXTERNAL SPEAKER
Compact design. Cable length: 1.5 m; 4.9 ft
SP-12 EXTERNAL SPEAKER
Slim-type. Cable length: 2.0 m; 6.6 ft
DSeparation accessories
OPC-600/601 SEPARATION CABLE
For operation with the front panel detached.
Cable...

17OPTIONS
72
DWireless microphone accessories
HM-90WIRELESS MICROPHONE
Infrared, full remote control microphone. Wired remote con-
trol is also possible.
EX-1759INFRARED RECEIVER
Used to receive control signals from the HM-90.
EX-1513INFRARED SUB RECEIVER
Used with the EX-1759 to increase remote control reliability
and extend the controllable area.
CP-13/LCIGARETTE LIGHTER CABLE WITH NOISE FILTER
OPC-288/LDC POWER CABLE
Supply power to the BC-96 for charging the Ni-Cd battery in-
side the HM-90 when the...

MODE ARRANGEMENT18
73
MEMORY MODE (p.29)VFO MODE (p. 15) 
CALL CHANNELS (p. 34) 
SCRATCH PAD
MEMORY (p. 36)
DTMFDUPLOCKSET MONI LOWPRIOT SCANM⁄CALL TONESCANV⁄MHz
HI19
5
See p. 46 for details.
DTMF MEMORY
or no operation 
for 30 sec.
When the DTMF 
memory encoder is 
activated.
DTMFDUPLOCKSET MONI LOWPRIOT SCANM⁄CALL TONESCANV⁄MHz
HI19
5
DTMFDUPLOCKSET MONI LOWPRIOT SCANM⁄CALL TONESCANV⁄MHz
HI19
5DTMFDUPLOCKSET MONI LOWPRIOT SCANM⁄CALL TONESCANV⁄MHz
HI19
5
DTMFDUPLOCKSET MONI LOWPRIOT SCANM⁄CALL...

18MODE ARRANGEMENT
74
INITIAL SET MODESET MODE
Scan resume
condition (p. 43)
Skip channel*
2
setting (p. 42)Beep tone on/off
(p. 59) Turn power ON while pushing [SET].
Time-out timer
(p. 59)
Auto power-off
(p. 60) Auto repeater*
(p.28)
* U.S.A. version only.
Cooling fan
setting (p. 60)
Data
speed (p. 63)
Squelch
delay (p. 62)
Microphone
address (p. 58) DTMF speed
(p. 49) Subaudible tone
frequency (p. 26)
Tuning step*
1
(p. 18) Offset frequency
(p. 27) Repeater tone
frequency (p. 26)
HI19
5T
Display...

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