Yaesu FT-991A User manual

Yaesu FT-991A
1200 Baud Packet Radio Setup
DO NOT connect a USB cable
from your computer to the FT-991
until you load the drivers listed below.
Download the FT-991A/ SCU-17 USB Driver (Virtual COM Port Driver) from the
manufacturer's website and follow the directions to install it on your computer.
This will install 2 new COM ports. One is labeled ENHANCED COM port, and the other
is STANDARD COM port. After you have installed the drivers, you can connect a USB
cable from the PC to the radio.
With the radio still connected you can check that these COM ports were installed on
your computer by going to Device Manager. Click the arrow next to the
“Ports (COM & LTP)” Menu. You should see two newly added ports:
Silicon Labs Dual CP210x USB to UART Bridge: Enhanced COM Port (COM 4*)
Silicon Labs Dual CP210x USB to UART Bridge: Standard COM Port (COM 5*)
(*or a different number) (Make a note of which COM port is which)

Once the ports are installed, The following menu items need to be changed from their
default values in the radio.
•Press the Menu/Setup button.
•Scroll through the menus using the multi-purpose knob.
•Use the touch screen to select a menu Item.
•Turn the multi-purpose knob to adjust the settings.
•Use the touch screen to save the selection.
031 CAT RATE 38400 (This is the baud rate between the radio and modem)
032 CAT TOT 100ms
033 CAT RTS Enable
062 Data Mode OTHERS
064 OTHER DISP (SSB) = 1500 Hz
065 OTHER SHIFT (SSB) = 1500 Hz
066 DATA LCUT FREQ = OFF
068 DATA HCUT FREQ = OFF
070 DATA IN SELECT = REAR
071 DATA PTT SELECT = RTS
072 DATA PORT SELECT = USB
076 FM PKT PTT SELECT = RTS
077 FM PKT PORT SELECT = USB
079 FM PKT MODE = 1200
Next, Download soundmodem113.zip and easyterm49.zip from the UZ7HO
website at http://uz7.ho.ua/packetradio.htm and extract into a new folder.
Open Soundmodem
Click on Settings in the menu bar. Select the Enhanced COM port and Standard COM
port for the Output device and input device, respectively. Check the following boxes
ONLY:
•Single channel output
•Stop waterfall on minimize
•Minimized window on startup
The rest of the settings under “Sound Card”, leave at defaults.
Select PTT Port – Choose the Standard COM Port from above. Then click OK.
Open EasyTerm.
Under the settings menu, select Station Setup.
Enter your Terminal Callsign.
Enter your Mailbox Callsign. Then click OK.
Select your frequency on the FT-991A.
Set the Mode to DATA-FM.