Subj : Re: Packet Radio
To   : Vk3jed
From : dejavu
Date : Wed Jun 17 2020 08:36:37

On 17 Jun 2020, Vk3jed said the following...
 
 Vk> -=> On 06-16-20 13:24, dejavu wrote to Vk3jed <=-
 Vk> 
 Vk>  de> What TNC hardware are you using that supports IPv4?
 Vk> 
 Vk> Any TNC that supports KISS will do the job. :)
 Vk> 
 Vk>  de> I know the TNC-X is a very good open source product that has the
 Vk>  de> ability to stack RS-232 interfaces on top, so you can have one device
 Vk>  de> with UHF, VHF and HF all in one.
 Vk> 
 Vk> TNC-X supports KISS (that's all it supports!), so it will work.  All of
 Vk> the IP networking software supports KISS TNCs, though that's not the
 Vk> only option. There's also software TNCs and various hardware cards that
 Vk> have come and gone.
 Vk> 
 Vk>  de> I'm curious to know what else is out there now, TNC-X is a few years
 Vk>  de> old now.
 Vk> 
 Vk> The original TNC-X site is no more, but MFJ now builds and sells the
 Vk> design.
 Vk> 
 Vk> My own setup uses a TNC-Pi, which is basically a TNC-X style board that
 Vk> fits on the Pi as a shield.
 Vk> 
 Vk> 

I believe where I had left off last on building a packet interface was to use
the TNC-Pi, however I never ordered one.  If I can remember back in memory
that far I believe it was because they were on the brink of releasing a 9600
version at that time and I was holding out.   Does that sound about right for
the TNC-Pi?  

I have quite a few Kantronics TNC's, including the KAM-XL, etc, I find them
fantastic for stability and running in KISS mode and using software versus
their built in OS, such as APRS.  I don't believe I've tried to use BPQ with
the Kam XL.

If someone handed you a couple Kantronics KAM-XL and SCS Pactor III units
and a TNC-PI, which unit would you prefer to use for BPQ for a packet
interface into Mystic, and if possible, some use cases for the TNC-PI over a
traditional hardware TNC?

The KAM-XL has VHF and HF support, as well as the SCS Pactor III units.
I see one justification with the TNC-PI is that it has, at least from memory
a 9600 baud interface.  That would be one advantage that I can see for 9600
UHF user connections.  

Nothing else is coming to mind, other than open source... However I'm
extremely rusty on the topic and I don't own a TNC-PI, at least I don't
believe I have one, LOL :)

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-Dejavu

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