Icom IC-910H [54/86] Data communication

Icom IC-910H [54/86] Data communication
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DATA COMMUNICATION
Connections for AFSK
Connections via [DATA] socket
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
Connections via [ACC(1)] socket or [MIC] connector
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
q
DATA IN
SQL*
PTT
RX AUDIO
GND
TX AUDIO
TNC
w
GND
e
PTT
r
DATA OUT
Shielding cable
q
DATA I N
SQL*
PTT
RX AUDIO
GND
TX AUDIO
TNC
w
GND
e
PTT
y
SQ*
t
AF OUT
Shielding cable
9600 bps connection 1200 bps connection
* Connect the SQL line when required.
[DATA] socket
(Rear panel view)
[DATA] socket
(Rear panel view)
* Connect the SQL line when required.
y
SQ*
1
2
3
4
5
6
7
8
A
B
C
D
E
F
*
1
2
3
4
5
6
7
8
A
B
C
D
E
F
*
Connection via [ACC(1)] connector
Connection via [MIC] connector
TNC
* Connect the SQL line when required.
(Rear panel
view)
(Front panel
view)
A
B
C
D
F
E
AFSK output
AF input
PTT
GND
Squelch input
SQL*
PTT
RX AUDIO
(1200 bps)
GND
GND
TX AUDIO
Functions for AFSK
The IC-910H does not have an FSK mode for RTTY,
AMTOR, PACKET, etc., however, you can operate
these using AFSK in SSB or FM mode.
The transceiver accepts data speed of up to 9600 bps.
When using 9600 bps, set the transceiver to the 9600
bps data mode using the general set mode. (p. 57)
When operating AFSK, connect external equipment to
the DATA (MAIN or SUB) or ACC socket on the rear
panel, or to the microphone connector on the front
panel as in the diagram below.
OPERATION NOTES FOR 9600 bps
Set the transceiver to 9600 bps data mode.
- See p. 57.
Set AFSK/GMSK output level of the terminal unit to
0.4 V p-p (0.2 V rms).
-When exceeding 0.5 V p-p (0.25 V rms), the trans-
ceivers modulation limiter stops modulation.
- At this time, the [RX/TX] indicators brightness fades.
AF output from the transceiver is continuous and is
not cut by the squelch circuit.

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