Yaesu FT-991 Manual
FT991 and WSJT-X setup
Let’s set up the FT991 first
1. Click the Menu/Setup button and set the following menu items to these values (courtesy of
G4WJS):
i. 029 = 38400bps
ii. 030 = 10msec
iii. 031 = 38400
iv. 062 = OTHERS
v. 064 = 1500Hz
vi. 065 = 1500Hz
vii. 066 = OFF
viii. 068 = OFF
ix. 070 = REAR
x. 071 = DAKY
xi. 072 = USB
2. Exit the Menu/Setup and press the F (M-List) key, then set up the following buttons:
i. NAR/WIDE to WIDE
ii. NB doesn’t matter
iii. AGC = AUTO
iv. RF POWER = set to max drive power for your amplifier (if you use one). Mine gets to
full output at 25w
3. DT GAIN = you’ll have to fuss with this, as it affects the ALC. I set it so I get to max drive with
the WSJT-X power slider all the way up
FT991 and WSJT-X setup
4.
NOTCH, CONT, DNR and DNF = off
i. SHIFT = 0Hz
ii. WIDTH = 3000
You are going to have to set the shift and width with every band you go to with wsjt-x, but only the first
time around. The ft991 has 3 band stack registers on each band, and I reserve one of these on each band
for digital modes. For example, to change the current band stack register for 144, you just press band,
then 144. Pressing 144 again will move you to the next register, and perhaps on this one you have been
operating SSB with different shift and width settings, on a different frequency, etc.
My reason for mentioning this is because you will eventually want to go back to SSB or some other non-
digital mode, and you may have different settings in these modes for shift and width and other things
remembered by the register. To save you the trouble of re-setting all of this for these non-digital modes,
and then back again for digital, when you intend to operate digital modes, do the following:
Go to the band stack register you set up for digital modes on each band you intend to use
Set menu item 070 to REAR
Start wsjt-x and operate
Conversely, when you want to change out of digital modes and operate the radio on other modes
normally:
Close wsjt-x
Set menu item 070 to MIC
Go to the band stack register for each band you will be operating on and select the register with
your settings for the mode you will be using (BAND then 144 for 2m SSB or whatever, for example).
FT991 and WSJT-X setup
i. MOX, VOX and MONI = off
Turn off the FT991 and make certain the USB cable is not connected to your computer yet
Install the USB drivers from the Yaesu web site onto your computer which will be running wsjt-x.
1. Once the drivers are installed according to the instructions there, turn on the FT991 and
plug the USB cable into your computer. You’ll hear a few sounds as it sets up the drivers and
recognized the FT991.
2. After the computer is finished setting up the ft991 com ports (all those sounds you heard),
open the device manager on your computer and find the two new Silicon Labs COM ports
that were set up. Remember these two com port numbers…in my case, they were named
com111 and com112 on my desktop PC. When I installed these drivers on my laptop, they
were named com4 and com5. You’ll also need to remember which one is the enhanced port.
3. Close the device manager
FT991 and WSJT-X setup
Next, start up wsjt-x and go to file/settings.
1. Enable the VHF/UHF/Microwave features for operation above 30 MHz, otherwise uncheck
it; enable any of the other features you may want to use. My own setup for VHF is shown
below.
FT991 and WSJT-X setup
2. Now go to the radio tab and set the CAT control com port to the enhanced port number you
remembered from the computer device manager (mine was com4 for this laptop). Set all
the other parameters as shown below.
3. With your FT991 connected to a dummy load, click the Test CAT radio button; if all is set up
properly, it should turn green in a second or two. When it turns green, test the PTT by
clicking on the Test PTT radio button. The FT991 should go into transmit mode. Click the
Test PTT again to return to receive.
FT991 and WSJT-X setup
4. Now go to the Audio tab. Set the input to the Microphone (USB Audio CODEC) and the
Output to the Speakers (USB Audio CODEC). Click OK.
That’s it
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8
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