You can configure the mcHF to stream IQ data to the PC instead of processed audio
(default) using the DIG IQ setting in menu 060 TX AUDIO Source. This will also
automatically switch the stream from PC to mcHF to use I/Q Data. Technical parameters
of the delivered/accepted IQ stream is 48khz sample rate, left channel I, right channel Q.
Data is 16 bits. You may want to play with configuration menu 400 which allows you to
define the communicated mcHF frequency. This is either center frequency (default
setting), i.e. LO frequency. Or it is the TUNE frequency, the frequency you see in the
mcHF display, this typically 6 or 12 khz off center. Some software needs the lo to be sent
via cat but most software use the tune (example all logging software, cluster spotting)
• SDR# (Linux/Windows): soundcard receive (Linux needs build with MONO)
• HDSDR (Windows): soundcard receive and transmit, rig control via Omnirig
• Quisk (Linux/Windows)
• GQRX (Linux)
Installation on Windows XP - 8.1
In order to use the virtual serial port, Windows needs a driver for this interface. In fact, it
needs only the information which driver to use. Windows driver download.
Windows Vista and newer
• Run the ST Virtual Com Port (VCP) driver installer. This will provide you with
everything you need. Look for the file stmcdc.inf.
• Modify this file by replacing the respective part of the file with the following lines
[DeviceList.NT]
%DESCRIPTION%=DriverInstall,USB\VID_0483&PID_5732&MI_00
[DeviceList.NTamd64]
%DESCRIPTION%=DriverInstall,USB\VID_0483&PID_5732&MI_00
Run dpinst_amd64.exe or dpinst_x86.exe in the same directory and you are done.
Windows XP
You need Win XP SP3 or have to find usbser.sys. Then follow the instructions above
(worked for some) or point the device directly to the usbser.sys file (worked for others).
FAQ
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