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52
DATA COMMUNICATION
■ Connections for AFSK
DD
Connections via [DATA] socket
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
DD
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*
*Connect the SQL line when required.
■ 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-
ceiver’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.
