[OZAPRS] What's Happened to HF APRS in VK?

Warren VK3BYD vk3byd at wia.org.au
Mon Oct 13 18:42:54 EST 2003


Hi Bob,

>
> > BBS in NSW. We used 10.149Mhz as it appeard not to be used localy and
did
> > not feel comftable using 10.151Mhz as it was too close to the band
edge
and
> > this became confusing for most operators.
>
> 1) "too close" to the band edge is groundless concern for the last 20
> years since we have digital synthesized rigs.

That's fine providing your HF rig will allow you to transmit when it is
"out
of band"


> 2) If people are "confused" THen simply don't call it 10.151 LSB, but
call
>    it 10.147.6  USB.  Its the SAME frequency (assuming someone is using
>    an 1600/1800 Hz shift.  But the BEST way to refer to the global APRS
>    HF freuqnecy is 10.149.2 MARK and let the user do his own math based
>    on what TONES his TNC uses.
>
> They are all the same freq.

Are they all the same? Wouldn't swapping to USB invert the mark / space
thus
preventing you from decoding the signal on lsb?

Cheers
Warren.



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