steve at dimse.com
Fri Jan 23 12:18:11 EST 2015
On Jan 23, 2015, at 11:59 AM, D. Daniel McGlothin KB3MUN <kb3mun at mcglothin.us> wrote:
> The checkpoint ID is stored in the radio DTMF memory. The ham types in the (numeric) team number and the radio sends the memory and the team number. Thus each team passing a checkpoint can have its presents tossed onto the APRS network, and the central locations show a 'instantaneous' view of all of the runner's progress.
But the alternative is to write a simple app on a touch screen (tablet, phone, ipod, or raspberry pi) that has a keypad for typing the runner name, when you type one in it talks over bluetooth or directly to a tnc that sends it as an APRS packet. Each choice is about the same in terms of programming effort, and a touchscreen is easier and more versatile.
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