Duplex Operation; Data Communication - Icom IC-9700 Advanced Manual

1. ADVANCED OPERATIONS

Duplex operation

The Duplex operation shifts the transmit frequency
up or down from the receive frequency by an offset
amount.
• OFF: For simplex operation (the receive and
transmit frequencies are the same).
• DUP–: The transmit frequency shifts down from
the receive frequency by the offset amount.
• DUP+: The transmit frequency shifts up from the
receive frequency by the offset amount.
1. Push .
FUNCTION
2. Touch [w].
3. Touch [DUP].
• Each touch selects "DUP–," "DUP+" or "OFF."
4. Touch [DUP] for 1 second.
5. Enter the frequency offset, and then touch [ENT].
NOTE: When the Auto Repeater function is ON, and
the operating frequency is set out of the Repeater
output frequency range, the duplex mode is
automatically cancelled.
» SET > Function > Auto Repeater
MENU

Data communication

SSB-DATA, AM-DATA and FM-DATA modes
You can operate the data mode using AFSK (Audio
Frequency Shift Keying).
L When operating PSK31, SSTV or JT65B with a PC
application software, refer to the software's instruction
manual.
1. Connect a PC or other device to the transceiver.
L See "FSK and AFSK connections" for the BASIC
MANUAL.
2. Set the operating frequency and mode.
3. Refer to the application software for
communication details.
L When operating in the SSB data mode, adjust the
device's output level within the ALC zone.
TIP: The carrier point is displayed when operating AFSK in
the SSB data mode.
See the illustration below for a tone-pair example.
170 Hz
Space
1-14
2295 Hz
–2125 Hz
Carrier point
(displayed frequency)
Mark