Kenwood TH-D74 TNC Settings Winlink express via bluetooth

Interface
• 980 USB Function COM + AF / IF Output
• 981 PC Output (GPS) Bluetooth
• 982 PC Output (APRS) USB
• 983 KISS Bluetooth
• 984 DV / DR USB 
TNC (Under APRS menus)
• 505 Data Speed 1200bps
• 506 Data Band A Band [MTB note: I successfully used A and B]

GPS
• 400 Built in GPS ON
• 401 My Position GPS
• 402 position Ambig. off
• 403 Operating mode Normal
• 404 battery saver car
• 405 PC Output On
• 406 sentence All activated [MTB note: I only had GPGGA and GPRMC enabled] 

PC Host Software
Kenwood Drivers

Download and install the Kenwood USB virtual drivers, follow Kenwood's instructions:

http://www.kenwood.com/i/products/info/amateur/thd74_vcp_e.html

WinLink
Now for the settings in Winlink. You should have the WinLink settings for your station info setup.

After opening a packet session, go into the session setup where the following settings are made:

• Pack TNC Type KISS
• Packet TNC Model NORMAL
• Serial Port The port obtained by the pairing.
• Serial Port Baud 9600
• [MTB Note: IPoll off]

Operation Notes

Pairing
After the TH-D74 settings have been changed, the TH-D74 is paired with the PC. The pairing mode is activated in menu item 934. Once activated, the TH-D74 will be visible to the PC for 60 seconds.

In Device Manager now appear 2 new Bluetooth Com ports, the lower Com Port is usually the port which is to be used. In my case, these are ports 3 and 4. [MTB note: The lower port did not work for me, the higher did]

Activate the KISS TNC in the TH-D74 
1. Hold down the function key and press number key 5 until the display shows KISS 12 (not APRS 12). 
○ If KISS 96 appears on the display, this can be found in the menu item 505 to be changed.
2. Any setting changes in the WinLink packet session will cause the TH-D74 to fall out of Kiss 12 operating mode. Keep watch on the radio's Kiss 12 mode setting!