[OZAPRS] Strange APRS packets

[David Hopkins]

Gentlemen,
Anyone else noticed strange behavior on the APRS system here,

Have a look at the raw packets on VK4zf-9 on aprs.fi
At first I thoughht there was something wrong with the setup in this car.

However if you look at vk4zf-7, it has the same problem.This is a 
completely different car and radio.
I have noticed it also on other mobiles.

If you watch the tracks on aprs.fi the positions are all over the place.

What is going on?

David


David G. Hopkins (VK4ZF)
CAPALABA QLD
AUSTRALIA
27.32.38S 153.12.03E
QG62OL
Skype :- davhop