[OZAPRS] Analysis of VK1 APRS traffic.
Carl Makin
carl at stagecraft.cx
Thu Feb 15 22:23:42 EST 2007
Hi Chris,
On 15/02/2007, at 10:10 PM, Chris Hill wrote:
> Did "Bytes" mean bytes of payload after extraction from AX.25
> frames, or was
> it total octets recovered off-air (including AX.25 headers, etc)?
>
> (Of course, the AX.25 overhead varies depending on path length, etc).
It's payload+header. I fudged it actually since I'm not processing
kiss frames, but using the "tncport" socket on my javaaprs server
which passes decoded frames from the TNC. I drop the timestamp and
count all the text from then on. It's not exact but it's "close
enough". :)
I did a scatterplot in Excel as well and it confirmed just how
constant the traffic is. I didn't think we were loading the local
channel that much, but I guess I have to revise my opinion!
Carl.
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