On 03/05/2015 20:50, jeff millar wrote:
Hi Jeff,
thanks for the feedback, a few comments inline below:
I've been using the IC-9100 USB interface with WSJT-X, version 1.5-rc1
with Ubuntu 15.04 Desktop.
First the good news
* The internal sound card and two serial interfaces were supported
by Ubuntu by default
* The CAT interface worked first try and very smoothly on TTYUSB0
* The built in USB sound card serial ports appears with different
identifications
o from the lsusb list: TI PCM2901 in the lsusb list and Cygnal
CP210X UART
o from WSJT-X Settings/Audio:
alsa_input.usb-Burr-Brown_from_TI_USB_Audio_CODEC-00-CODEC.analog-stereo
There are a few quirks worth mentioning.
* The 9100 has a Data Mode that can have a different Rx bandwidth
from SSB mode
o I set data mode to 3.6 KHz to see some of the JT9 band
(without making SSB mode too wide)
The widest IF filter on the IC-9100 is 3 kHz, you can move that around
all of the 4 kHz of JT65 and JT9 sub bands by using the TWIN PBT as an
IF shift control.
o
o But, whenever WSJT-X changes bands, it forgets that the radio
was in "Data" mode and sets it SSB mode
Have you tried setting the "Mode" to "Data/Pkt" in "Settings->Radio"?
* Receiving USB sound may have the level about 30 dB too high
o So had to move the input level slider all the way down.
The IC-9100 has no controls for the AF out level to USB or the ACC jack,
use the Windows level controls in preference to the gain slider in WSJT-X.
* Transmitting USB sound may have the level too low
o With default USB mod level at 50%, the Pwr slider had to go
all the way up
The "Tx Pwr" slider is intended as an attenuator, all the way to the top
is 0dB and is the default setting.
o With USB mod level at 100%, the Pwr slider backed off to the
1.5 ticks below max
Set the "Tx Pwr" to the top and adjust the rig's MOD level to give
required output i.e. just into ALC at full power. Use the rig's RF POWER
control to set your output between 2W and maximum, if you require less
than 2W output then resort to the WSJT-X "Tx Pwr" slider to reduce further.
thanks,
jeff, wa1hco
73
Bill
G4WJS.
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