[OZAPRS] 439.100Mhz 9600bd in the future in VK3
Peter Wicklein
vk3tbn at hotmail.com
Mon Aug 6 17:14:42 EST 2007
Hi all,
Richard and I have talked about going 9600BD in Melbourne for a while, but
dont know if there is enough interest in it, as the 70CM network gets very
few users at the moment.
See what I mean:
http://www.db0anf.de/app/aprs/stations/digiusers-VK3TBN-10
http://www.db0anf.de/app/aprs/stations/digiusers-VK3MY-2
This is dispite the fact that we have tried to expand the content, add
extra
features ( Info Kiosk/SF message server and carry all of OZ/NZ TFC and DX
cluster as well.
I do use it for Mobile myself going to and from the Greensborough to the
City and around most of Melbourne , without problems. Most of the North
and
east of Melbourne are covered up to the city, I usually get about 10 to
12
posts per trip or more..
http://www.db0anf.de/app/aprs/stations/mobile-VK3TBN-9
I would be prepared to go to 9600BD, I have both the TNC and the Radio to
do
so, but its hard to justify upgrading the Digi vk3my-2 ( Sorry Ross i
havent
even asked you yet!!) and installing a node on VK3CV if there not that
many
users
Would be interested in your thoughts on if the investment/ expansion would
be utilised?
Regards
Pete
>From: "Richard Hoskin" <vk3jfk at amsat.org>
>Reply-To: VK / ZL APRS Users <ozaprs at aprs.net.au>
>To: "'VK / ZL APRS Users'" <ozaprs at aprs.net.au>
>Subject: Re: [OZAPRS] [aprssig] 434 MHz tracking
>Date: Mon, 6 Aug 2007 15:57:47 +1000
>
>
>
> > -----Original Message-----
> > From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au]
On
> > Behalf Of Stephen H. Smith
> >
> > But how fast were you moving? In what kind of terrain. Over what
> > distance?
> >
> > 1200 baud is much more tolerant of mobile flutter, fading and
multipath
> > from moving vehicles than higher data rates, because it's individual
> > symbols are much longer. The differences between even 1200 and
9600
> > on a Kenwood D700 in motion are quite dramatic.
> > http://wa8lmf.net/DigiPaths
> >
>
>If you are in Melbourne tune your APRS Radio to 439.100Mhz (1200bd) to
>compare APRS on VHF & UHF. The UHF system may be configured for 9600bd
in
>the future.
>
>Cheers
>Richard
>VK3JFK
>
>
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