[OZAPRS] Higher beacon rate HF versus VHF?

David and Justine Olsen davejust at bigpond.net.au
Mon Mar 30 20:12:16 EST 2009


Richard,

I am not sure I agree <snip snip>

> this results in a maximum of 7 stations being able to transmit per  
> minute.


You sure? They can transmit all they like. Given the poor Rx success  
rate, they aren't going to cause a whole lot of problems if they  
aren't heard by anyone.

> Lets see, HF APRS increases the coverage area from roughly 200,000  
> Sq Km
> using 3 hops to potentially 75 Million SQ KM.



Australia is different to elsewhere most that space has nobody in it.


> the maximum number of
> stations that can be in a single APRS Gate's coverage area is 70  
> stations.

I wonder how many times you have seen 70 HF stations on APRS at once,  
let alone in one iGate's coverage area.


David
VK4MDX
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