Icom IC-7760 Operating Manual page 14

C. Using CW Skimmer with HDSDR (For a narrow 24 kHz bandwidth)
D Operation: Making a call to a station that is decoded in CW Skimmer
1. Select the CW mode on the IC-7760.
2. Set the operating frequency to where (within ±12 kHz) a station is calling a CQ.
3. Click on a station decoded in CW Skimmer.
• The operating frequency is automatically set.
4. Transmit on the frequency and make a call to the station.
• The IC-7760 operating frequency, the HDSDR LO frequency, the HDSDR Tune frequency, and the CW Skimmer
frequency are set to the same frequency.
IC-7760 (Controller)
MAIN (RX/TX)
7.010 MHz
Dualwatch: OFF
L Information
• You can not hear the demodulated audio from HDSDR because HDSDR in this case is used for only I/Q data conversion.
• You can hear the demodulated audio of the operating frequency from CW Skimmer which is the same audio as the IC-7760.
• The I/Q data output from HDSDR is input to CW Skimmer through VB-Audio Hi-Fi Cable.
• CW Skimmer uses Omni-Rig to connect to com0com and controls the HDSDR Tune frequency through the virtual serial port
of com0com.
D Settings: Making a call to a station that is decoded in CW Skimmer
NOTE: First, setup com0com and VB-Audio Hi-Fi Cable before setting up HDSDR. The setup is required only for
the first time.
com0com
TIP: If the COM port numbers are between COM
1 and COM 20 as the default, you do not have to
follow the steps below.
1. Open the Windows Start menu and click
"com0com" → "Setup."
• Setup for com0com window is displayed.
2. Select 2 COM port numbers that are not used.
(Example: COM 10 and COM 11)
L DO NOT select the numbers more than COM 20.
Omni-Rig cannot support them.
L If the COM port number is displayed in red, the
number is currently used for other devices. Change
the number.
3. Click <Apply> and close the screen.
L If the Program Compatibility Assistant screen is
displayed, click <Cancel>.
Speaker
RF deck
I/Q data (MAIN)
Sync Mode: Only HDSDR sync
6
Select the USB mode on HDSDR.
PC
CW Skimmer
7.010 MHz
I/Q data Control
output
com0com
VB-Audio
Hi-Fi Cable
Omni-Rig