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What is Smart Beaconing ?

SmartBeaconing™ is an algorithm developed by the makers of the HamHUD for dynamically choosing when and/or how often to send position updates.

The main goal of SmartBeaconing is to talk only when there's something useful to say. It's the simplest form of data compression: Data Volume = Information Volume (as opposed to "Data > Information"). It minimizes the amount transmitted while simultaneously maximizing the value of what does get transmitted.

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 chage direction by a significantly.

Configuration

When configuring SmartBeaconing functionality, there are a few parameters to consider:

  • Slow Speed
    This is the speed below which you're effectively still.
  • Slow Rate
    This is how often your unit transmits when it's still (or nearly still - any speed below "Slow Speed").
    20 minute intervals (1200 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 in the same place!" too often!
  • Fast Speed
    This is the speed above which you will transmit at the "Fast Rate".
  • Fast Rate
    This is how often your unit transmits when it's moving at any speed greater than "Fast Speed".
    60 seconds is the fastest recommended beacon rate for mobiles on VHF (120 seconds is better)

Travelling at speeds in between the "slow" and "fast" speeds will result in a beacon interval proportional to your speed. For example, if you're travelling at half your "fast speed", then you'll transmit half as often as your "fast rate" specifies. 

The following parameters make up the functionality known as "Corner Pegging".   Corner Pegging ensures that even travelling at low speeds, directional changes will cause a beacon to be sent (For example if you are in a 4x4 in the outback - you may be travelling quite slowly but changing direction will result in a beacon)

  • Minimum Turn Angle
    This is the angle by which you must change heading by in order to transmit a beacon.  
  • Turn Slope
    This is a calculation of turn angle versus speed  (angle/speed)
  • Minimum Turn Time
    This is how often your unit transmits when it's continuously changing direction.  If you are driving in a 360 degree circle, this limits your beacons to only 1 in the given interval - recommended setting here is the same as the minimum beacon interval for the network - i.e.  60 seconds is the fastest recommended beacon rate for VHF (120 seconds is better)

 

 

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