[OZAPRS] VK2 Network Update

[geoff at gatwards.org]

Hi Shaun,

$GPRMC contains position and elevation.
$GPGGA contains position and speed.

If you want to be able to view position, elevation and speed, you need to
use both strings to extract all the required data from the NMEA sentances.

Using two of the TNC's LT buffers allows the TNC to send alternate beacons
with speed/elevation.  The client apps will see the elevation update every
2nd beacon, and the speed every 2nd alternate beacon.

You could of course use only $GPGGA if you were only interested in your
posit and speed.

Regards,
Geoff.


>
> Awesome website.  Very informative and well set out.
>
> Could I ask what the theory is behind one $GPGGA and one $GPRMC sentence
> in the mobile set up?
>
>
>
> Regards,
> Shaun Pitcher
> spitcher at energy.com.au
>
>
>
>
>
> geoff at gatwards.org
> Sent by: ozaprs-bounces at aprs.net.au
> 01/11/2007 02:45 PM
> Please respond to
> VK / ZL  APRS Users  <ozaprs at aprs.net.au>
>
>
> To
> "VK / ZL  APRS Users" <ozaprs at aprs.net.au>
> cc
>
> Subject
> [OZAPRS] VK2 Network Update
>
>
>
>
>
>
> Folks,
>
> Here is an update on teh status of the network changes in VK2....
>
> WEBSITE:  The NSW APRS website  http://vk2.aprs.net.au  is now up and
> running with a new look, and updated information.  The site will
continue
> to be u,pdated as things progress and change.
>
>
> VK2JPJ-1:   The New-N Firmware is ready to be installed, we are only
> waiting on site access at the moment. As soon as we can arrange access
> with the site owner the digi will be upgraded and the system given a
> health-check.
> This is expected to happen next week.   After the upgrade the callsign
> will be VK2US-1.
>
>
> VK2RAG-1:   The new firmware has been prepared and will be installed on
> the next visit by the site owner.  This will also hopefully be in the
next
> week.
>
>
> VK2AMW-1:   Same story - the new firmware will be installed on the next
> site visit by the owner, however this could still be in a few weeks.
>
>
> VK2RSW-1:   This digi will be returning to air in the next week as a
> Fill-In digipeater servicing Western Sydney.
>
>
> NEWCASTLE:  We are in discussions with a few local parties and we
believe
> we have secured a site for a new digipeater to cover the Newcastle area.
> This site will have good access back towards VK2RAG-1.
> Watch this space for developments :-)
>
>
> GREAT LAKES:  We are currently having discussions with the GLARC
regarding
> the installation of a digipeater at the VK2RGL repeater site
> (CabbageTree).  Things are looking promising for a new digi here, which
> will overlap the coverage from Newcastle.
>
>
>
>
> Regards,
> Geoff  VK2XJG
>
>
>
>
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