Configuring TinyTrak for the VK2 Network

TinyTrak is a very popular kit-based tracker for portable and mobile use. Based on a simple PIC processor, it converts NMEA output from a GPS into compressed MIC-E APRS packets. The later versions support Smart Beaconing, and HF modes.

Currently there are three versions of the TinyTrak being used. The guides below detail how they should be configured to interact efficiently with the network in New South Wales.

TinyTrak 1

TinyTrak 2

TinyTrak 3

Smart Beaconing
This is a nifty algorithm for dynamically choosing when and/or how often to send position updates. In short, the faster you're moving the more frequently it will send out position data. It also knows to send out position updates when you make turns.

Smart Beaconing's Slow Speed
This is the speed below which you're effectively still.

Smart Beaconing's Slow Rate
This is how often your unit transmits when it's still (or nearly still - any speed below "Slow Speed"). 30 minute intervals (1800 seconds) is plenty. If you are not moving, your beacon time is adjusted to be similar to a fixed station. There is no need to repeat "I'm still here!" too often!

Smart Beaconing's Fast Speed
This is the speed above which you will transmit at the "Fast Rate".

Smart Beaconing's Fast Rate
60 seconds is the fastest recommended beacon rate for mobiles in our network.

Smart Beaconing: what if you're in between "slow" and "fast"?
Then you'll transmit at a rate that's proportional to your speed, relative to your "fast speed". For example, if you're travelling at half your "fast speed", then you'll transmit half as often as your "fast rate" specifies.