Icom IC-910H - Data Communication; AFSK Functions and Connections

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DATA COMMUNICATION
n Connections for AFSK
D Connections via [DATA] socket
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
D 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 IN
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
F
*
• Connection via [ACC(1)] connector
• Connection via [MIC] connector
TNC
(Rear panel
view)
(Front panel
view)
*Connect the SQL line when required.
†
Connect the GND line “ E ” to the GND
line “
B ” when connecting to ACC(1).
A
B
C
D
F
E
†
AFSK output
AF input
PTT
†
NOTE
GND
Squelch input
SQL*
PTT
RX AUDIO
(1200 bps)
GND
GND
TX AUDIO
n 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 transceiv-
er’s modulation limiter stops modulation.
- At this time, the [RX/TX] indicator’s brightness fades.
•AFoutputfromthetransceiveriscontinuousandis
not cut by the squelch circuit.