[OZAPRS] Odd data path

Matthew Cook vk5zm at bistre.net
Tue Jun 14 17:06:42 AEST 2016


Norm,

I'd go looking at how aprs.fi displays compressed aprs packets or the mic-e
protocol.

That packet looks to be bit-stuffed and stripped back to 7bit ascii.

73

Matthew
VK5ZM

On 14 June 2016 at 14:44, Norm McMillan <vk3xci at gmail.com> wrote:

> ST54S9,VK5RHO-1,WIDE1*,WIDE2-2,qAR,VK5THB--5
>
> The bit I don't understand is the ST54S9. I always thought that this
> defined the TNC device and usually starts with AP for APRS followed by a
> string to ident the tnc?
>
> Now I look a little closer at the data-stream I see quite a few SWU1U4,
> S7T9Y5... hmmm all six element strings starting with S?
>
> A brief explanation or link?
>
>
> norm
> vk3xci
>
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> OZAPRS at aprs.net.au
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>
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