Icom IC-7760 Basic Manual page 70

8
SET MODE
Connectors
» SET > Connectors
MENU
USB (B) Function (Default: RTTY/PSK Decode)
The transceiver has 2 virtual COM ports, A and B.
In this item, sets the function to be assigned to virtual
COM port B.
L Virtual COM port A is used for CI-V operation.
L When connecting the [USB B] port on the controller's rear
panel to your PC, the ports are virtually named "IC-7760
Serial Port A (CI-V)" and "IC-7760 Serial Port B."
• RTTY/PSK Decode:
Outputs the decoded data of the RTTY or
PSK signal.
• CI-V: Inputs or outputs CI-V commands.
SEND Relay Type
Selects the switching relay type to use the linear
amplifier.
L Select the suitable relay type, especially when connecting
a non-Icom linear amplifier.
ACC BAND Voltage Output
Selects the operating band voltage output from the
[ACC 2] socket (pin 4) on the RF deck's rear panel.
MIC Input DC Bias
Outputs the 8 V bias voltage (approximate) from the
[MIC] connector (pin 1) on the controller's front panel.
PTT Port Function
Set the behavior of the PTT pin on the [MIC]
connector.
• PTT Input:
While transmitting, the transceiver does not
output the SEND signal (TX status) from the
PTT pin, but does detect the PTT input (PTT
operation) on the microphone.
• PTT Input + SEND Output:
While transmitting using other than the
operating microphone, the transceiver does
not detect the PTT input (PTT operation) of
the microphone, due to the output SEND
signal from the PTT pin.
NOTE: If you want to cancel transmitting the
recorded audio by pushing [PTT] on the microphone,
set to "PTT Input."
(Default: MOS-FET)
(Default: TX)
(Default: ON)
(Default: PTT Input)
8-13
REF IN
Selects the transceiver's reference frequency signal
source.
L If the applied reference signal is off frequency, or not high
enough, the IC-7760 will not work correctly. In that case,
select "OFF."
(Default: OFF)