[Xastir] Intermittent internet connection

[Bennett, Joe]

I do this quite often, not with GPRS but with the "other technology".  Since 
that has put food on my table for the last 7 years, I automatically have to 
jokingly say, "yuk" to the notion that someone actually uses GPRS... :)
I'm joking of course (not)... :)

The only thing that'll get ya here is the keep alive message that the APRS 
server sends out every 30 seconds or so. Most wireless data services will 
tear down the RF resources if no data is transmitted during x period of time 
while maintaining your IP session (PPP). It's the "if you aren't gonna use 
it, we give it to someone who will" concept.

With your pay by MB issue, you'll be paying for the ~75 byte message every 30 
seconds if you connect to 14580 with no filter.


-Joe
KA3NAM


On Monday 03 January 2005 07:14 am, Stuart L. Morris wrote:
> Here's a challenge for the new year...
>
> I'd like to use Xastir running on Linux to igate RF to Internet for a
> mobile application where there are no fixed digis. Because it will be
> mobile we will be using GPRS/GSM to make the internet connection.
> Because GPRS is billed by the megabyte and this system will be running
> 24hours a day for a week I don't really want Xastir's internet interface
> to be up and receiving all the incoming data all the time.
>
> Ideally I'd like Xastir to only bring up the internet interface when a
> valid packet is received on the local RF interface.
>
> Any ideas or is Xastir the wrong tool?
>
> Thanks
>
> Stuart
> M1XTN
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