[OZAPRS] OZAPRS Digest, Vol 49, Issue 9

[Stuart Camron]

Hi Terry,  i went for a drive earlier to day to Goolwa see Vk5ade-15 earlier 
today and i was listening to the 10Mhz frequency while on the road the HF 
packets was certainly longer than the usual 1200 BPS there were 4 different 
stations receiving the signal which was most interesting considering the 
time of day.  I had set the Open Tracker Tracker USB for compressed but 
appears that it has not shortened it.
Maybe it is not that important.
Stuart Vk5ade

-------------------------------------------------
From: "Terry" <vk5atn at internode.on.net>
Sent: Saturday, August 24, 201 3 12:28 PM
To: <ozaprs at aprs.net.au>
Subject: Re: [OZAPRS] OZAPRS Digest, Vol 49, Issue 9

> Re HF Packet length ....
>
> I've always accepted that HF packets do seem to take longer than might be 
> expected.
>
> I've thought the reason was that since HF packet operates at 300 BPS, a 
> position report containing a given amount of information will take four 
> times as long to transmit at 300 bps as it would at the 1200bps we may be 
> more used to.
>
> But then I could be wrong.
>
> Then there is the possible additional matter of whether the packet is 
> compressed or not.
>
> FWIW
>
> 73
> VK5ATN
>
>
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