[OZAPRS] And to really stir things up

[Jack Chomley]

At 06:30 PM 3/31/2009, you wrote:
>I have been avidly following the discussion on HF APRS, I must put a 
>couple taps on my HF APRS mobile whip to see how 40 and 20m compare 
>to 30m.  While camping I also tend to try HF APRS using a laptop and 
>soundcard interface.
>
>Sometime ago I proposed the use of two way messaging via HF APRS, 
>with an eye on efficient long distance message handling in Emcomm 
>situations, plus the fun aspects.  At the time it got pooh-poohed a 
>bit.  In my little mind I cannot see the issue with HF Igates 
>allowing local messages to be gated to RF.  UIView provides a 
>facility to throttle the number of beacons/messages transmitted to 
>air, so if capacity issues are realised these fields could be 
>tweaked to ensure mobile positions are received with minimal collisions.
>
>I know IGates accept messages from the air, but without the two way 
>capability HF APRS will be solely restricted to tracking.
>
>Note, I am not advocating HF gates transmitting objects from the 
>IS/VHF/UHF system, just messages directed to VKnxxx-15 stations.
>
>I'd love to have a HamHUD like device on my dashboard for HF, having 
>the HamHUD in the car for VHF has been excellent.
>
>Flame suit is on.
>
>Peter
>VK4EA


If the messages can be sent in a compressed format, like APRS 
position data,  then I see no problem.
Its a great idea ;-) I guess it remains, to work out a character 
count limit......

73  Jack  VK4JRC


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