Pat Winlink using Mac, Kantronics TNC, and IC-7100

[David McIntyre]

I installed Pat and got it working great through a telnet connection to the CMS. I'd like to have it working through RF.

I have a Kantronics KPC-3+ that's been working great under Windows. I can connect to the local node, W6SCF-10 using Winlink Express and through a serial connection on the Mac, using Minicom installed through Homebrew.

Is there an AX.25 stack for Mac that Pat can connect to? Or do I need to use Direwolf and not use the hardware TNC at all?

73,

 David - KM6DOV

[Dr. Torsten Harenberg]

Hi David,

Am 04.10.19 um 22:33 schrieb David McIntyre:

>
> Is there an AX.25 stack for Mac that Pat can connect to? Or do I need to
> use Direwolf and not use the hardware TNC at all?

this has just recently discussed in several github issues and Martin
summarized it and opened a single issue tracker for the underlying
wl2k-go package here:

https://github.com/la5nta/wl2k-go/issues/56

Long story short: at the moment there is neither a AX25 nor a KISS
implementation available for the Go programming language.

Until someone is willing to write one, you could either use a cheap
Raspberry Pi (that's what I do) to connect your KPC-3 to or another
option could be to run a small Linux inside something like VirtualBox on
your Mac and use pass-through to "connect" your KPC-3 to the Linux
inside that VirtualBox.

73s

Torsten/ DL1THM

[David McIntyre]

Thanks for the info, Torsten. Since I have a Windows VM running for most ham stuff, I can continue using Winlink Express. It also handles forms, which are not yet available in Pat. I'll keep an eye on the list for advancements and enhancements.

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[David Chenault]

Thorsten,

What about the CPython interpreter being embedded (using cgo)? Then you could call AX25 Python libraries instead of writing all new ones for Go? I know there are some trade-offs if cgo is not in the stack already, but I was just wondering. 

David

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[Martin Hebnes Pedersen]

David C,

A similar approach has been suggested for a Node/js ax25 package.

If you know of a python implementation of AX.25, please share a link to the project on the issue mentioned by Torsten so we can consider it for either porting or wrapping.

A wrapper around an existing implementation could be considered, but it has some drawbacks in comparison with a native Go package.

Thanks!

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[Mitch Winkle]

KISS is not terribly difficult.  John Wiseman's bpq code has a pretty straightforward implementation IIRC.  Since go looks a lot like C, it probably wouldn't be too tough to port.  I think the Direwolf code has a similar implementation as well.  I have some Java code somewhere also, if I can remember where I stashed it. :)

AX.25 is another matter of course.