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Hello Bob,

direwolf executes and says ready for KISS connection.? However, I do get this message

?

Line 268 is commented out

Line 268 is NOT commented out.? You have:
--
#?????? - the "AGW TCPIP Socket Interface" - default port 8000
#?????? - KISS protocol over TCP socket - default port 8001
??????? - KISS TNC via serial port
#
--

What you want is:
--
#?????? - the "AGW TCPIP Socket Interface" - default port 8000
#?????? - KISS protocol over TCP socket - default port 8001
#?????? - KISS TNC via serial port
#
--

Next, you have:
--
ADEVICE "ICOM IC-7300 "ICOM IC-7300

# Example: To use the USB Audio, use a command like this with
# the input and output device numbers.? (Remove the # comment character.)
ADEVICE USB
--

You have two ADEVICE lines enabled.? On the first example, ou haven't terminated the INPUT and the OUTPUT items with a trailing ".? That said, I don't know if this setting of "ICOM IC-7300" but if that is what Direwolf showed when you first ran it on Windows, it should be ok.? The second line also might work for you but it's super generic and it might get confused with your Flex radio.? I would recommend to disable this second ADEVICE line and use the first.


For your 300bps modem, why did you pick the "D" modem?
--
MODEM 300 1600:1800 7@30 /4 D
--

Also, the IC-7300 does not transmit after issuing the direwolf -x a command

For VARA and Winlink, what setting do you use for asserting PTT?? Asserting the RTS signal on COM8?? If so, you might try variations such as:
--
PTT COM1 -RTS
--

or
--
PTT COM1 -RTS -DTR
--


At the end of your direwolf.conf file, you have a few questionable settings:

--
TXDELAY 50
--
This is 500ms which seems excessive though I don't own a IC7300.? I would recommend to start at say 25 (meaning 250ms) and work your way down unless you have other things in the TX chain like amplifiers, etc. that need more time.

--
TXTAIL 30
--
This is also excessive.? I would bring this down to say 10.


I would also recommend to enable FX.25 as more and more 300bps HF stations are enabling it and it can make a huge difference.? Under the Direwolf channel 0 section, add something like:
--
CHANNEL 0
FX25TX 16
--
The level of protection is variable and costs more overhead.? You'll want to tune this based upon your station / the remote station / DX conditions, etc


Finally, what HF stations are you trying to connect to?? Most are NOT Winlink station but either PBBSes running on hardware TNCs or full packet BBSes.? To interact with those, you'll need a packet terminal program.? There are several out there for Windows so here is a short list:

??


--David
KI6ZHD