[Xastir] Xastir on pi3 with kpc3 plus

[Tom Russo]

On Tue, Jun 27, 2017 at 03:21:08PM +1000, we recorded a bogon-computron collision of the <vk2tv at exemail.com.au> flavor, containing:
> Tom,
> 
> Thanks for the heads up re the KPC in KISS mode. I'm obviously too used 
> to TNC2 style TNCs with a KISS only EPROM.

It's just the KPC3+ that has the problem.  The KPC2 and KPC3 don't.

> On 27/06/17 15:07, Tom Russo wrote:
> > One word of warning:  Whatever you do, do NOT use the KPC3+ in KISS mode.  The
> > recent posting saying that it should be happy is incorrect.
> >
> > The KPC3+ firmware has a serious bug in KISS mode that will cause it to
> > start delaying packet transmission (in both receive and transmit), and as an
> > Igate this is very bad news.  You will start forwarding delayed packets to
> > APRS-IS and it'll make a huge mess.  I ran one this way for a while, and
> > when I finally realized what was going on found that it was necessary to
> > power cycle the KPC3+ every few days to prevent it.
> >
> > This bug is well documented all over the web, and Kantronics never fixed it.
> > https://www.google.com/search?q=KPC3%2B+kiss+bug&ie=utf-8&oe=utf-8
> >
> > The KPC3+ in standard converse mode is just fine.  But useless for linux
> > ax.25 networking, if you were hoping to share the TNC across a lan.
> >
> > I eventually mothballed the thing and went to a dedicated KISS device (mine
> > is an old Argent Data Systems tracker 2).  My Pi (a 2B, I think) is set
> > up with this TNC as and AX.25 network port, and runs javAPRSSrvr for the
> > igate software and ldsped to share the TNC across my LAN or other machines to
> >   use.  Xastir is running on my primary desktop machine, and just connects to
> > that with AGWPE protocol.  Sometimes I connect additional laptops via the same
> > protocol, all sharing the same KISS TNC.
> >
> > I personally do not recommend Xastir for use as an IGate.  Xastir is great for
> > an APRS client, but there are better programs to use that have more complete
> > implementations of the full igate functionality, and that don't have Xastir's
> > graphical overhead.  My choice, as I said, was javAPRSSrvr, but there are
> > plenty of others.
> >
> > But if you do choose to go with Xastir, so long as you use the KPC3+ in normal
> > converse mode, your usb<->serial interface should do fine, so long as it's
> > using a chip that the Pi recognizes.
> >
> > On Mon, Jun 26, 2017 at 11:29:30PM -0400, we recorded a bogon-computron collision of the <ve3ctp at cogeco.ca> flavor, containing:
> >>
> >> I'm setting up xastir as an igate on an ras pi3. I have a kpc3 plus tnc that I'm trying to get to work with the pi3. ??I have a usb to 9 pin serial adapter, Will this work with the pi. ??Has anyone set up xastir like this. ??
> >> I was trying to use the equipment I currently have rather than purchase a pi tnc.
> >> Thanks??Chris??
> >>
> >> Sent from my Samsung Galaxy smartphone.
> >> _______________________________________________
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> >> Xastir at lists.xastir.org
> >> http://xastir.org/mailman/listinfo/xastir
> 
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-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236        http://kevan.org/brain.cgi?DDTNM
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