[OZAPRS] 9600 baud

Ray Wells vk2tv at exemail.com.au
Wed Jan 12 21:35:16 EST 2011


Of course I meant any move from 1k2


Ray vk2tv

On 12/01/11 20:54, oe5mzc at oevsv.at wrote:
> Gday,
> dont forget that when we talk about APRS with 9600baud,
> most of the speed benefit will be consumed by the TXDelay, TAIL and 
> FLAGs time
> which is often set too long.
>
> By the way: in Europe we are replacing old PACKET by 20MegaBit/s 
> HAMNET links on 2,4Ghz and 5Ghz.
> vy 73 de Mike
> OE3MZC/VK3FPF
>
> Quoting Ray Wells <vk2tv at exemail.com.au>:
>
>> Those of us who have been in packet (let's not forget that aprs is ax25
>> packet) for years will well recall attempts to encourage higher speed
>> data exchanges. Many BBS's installed higher speed ports but these were
>> largely ignored in favour of plug & play 1200bps. Even when there was
>> an attempt to get the now defunct Rose backbone to link at 4k8, it
>> largely fell in a heap.
>>
>> Whilst aprs would benefit from higher speeds I believe that any attempt
>> to move to 1k2 will be a disaster.
>>
>> Ray vk2tv
>>
>> On 12/01/11 18:52, Dave Horsfall wrote:
>>> On Wed, 12 Jan 2011, Howard Small wrote:
>>>
>>>> Just wondering why we use 1200 baud for APRS and not 9600? I must say
>>>> that doing some tests with 9600 between my D700, D7, D72 and VX-8R has
>>>> not shown it to be reliable but wonder if that is general or just
>>>> something specific to some of the equipment...
>>> Packet radio (remember that?) has been stuck on 1200 like a terrified
>>> limpet for years.  Europe, at the time, had megabit backbones.
>>>
>>> -- Dave
>>> _______________________________________________
>>> OZAPRS mailing list
>>> OZAPRS at aprs.net.au
>>> http://lists.aprs.net.au/mailman/listinfo/ozaprs
>>>
>>
>> _______________________________________________
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>
>
>
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