[OZAPRS] Alpine Rally - APRS & RF conditions

[Dion Bramich]

I had similar thoughts, had a nice reply drafted up, but wont post it..

Dion.


On Mon, 26 Nov 2007 09:47:03 +1100, Dick <vk7dik at dodo.com.au> wrote:

>
> Are you for real Richard ???
>
> On Sun, 25 Nov 2007 13:53:06 +1100, Richard Hoskin <vk3jfk at amsat.org>
> wrote:
>
>> Gday,
>>
>>
>> This weekend WICEN Vic is running the Alpine rally in eastern Victoria.
>>
>>
>> WICEN is using VK3REB-1 and VK3RGI-1 as digipeaters for APRS and
scoring
>> data.
>>
>>
>> Due to RF conditions there is a lot of APRS traffic from VK7 and other
>> areas
>> of VK3 being seen at the digipeaters. This has the effect of reducing  
>> the
>> available free air time for WICEN operators to use and is causing some
>> problems for communications in the event.
>>
>>
>> Here is an example of some of the data that is being received at the
>> digipeaters.
>>
>>
>> 1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[11:47:51]
>>
>> ;TRAFFIC  *251159z4106.33S\14555.92E? 59 In 10 Minutes
>>
>>
>>  1:Fm VK7HIL To APAGW Via VK7RAA,VK7RAC,WIDE2* <UI pid=F0 Len=19
>> >[11:48:08]
>>
>>> Will @ West Moonah
>>
>>
>> 1:Fm VK3MHZ-12 To APT311 Via VK3CV-1,WIDE1,VK7RAA,WIDE2* <UI pid=F0
>> Len=15
>>> [12:04:38]
>>
>>> TinyTrak3 v1.1
>>
>>
>> 1:Fm VK3MHZ-12 To 37T8S8 Via VK3CV-1,WIDE1,VK7RVP,WIDE2* <UI pid=F0
>> Len=13
>>> [12:05:22]
>>
>> `IYllSmk/"4V}
>>
>>
>> 1:Fm VK7DC To APU25N Via VK7RAC <UI pid=F0 Len=44 >[12:05:54]
>>
>> }VK2INT-9>SSU2Y8,TCPIP,VK7DC*:`OX_mhk>/"4<}
>>
>>
>> 1:Fm VK7DC To APU25N Via VK7RAC* <UI pid=F0 Len=44 >[12:08:31]
>>
>> }VK2INT-9>SSU2X2,TCPIP,VK7DC*:`NV]mAV>/"4)}
>>
>>
>>  1:Fm VK7HRM-9 To T1P6T5 Via VK7RAC*,WIDE2-2 <UI pid=F0 Len=13
>> >[12:08:32]
>>
>> `IJ)l"+R/"6K}
>>
>>
>> 1:Fm VK7HIL To APAGW Via VK7RAA*,WIDE2-1 <UI pid=F0 Len=19 >[12:08:03]
>>
>>> Will @ West Moonah
>>
>>
>>  1:Fm VK7HIL-2 To APAGW Via VK7RAA*,WIDE2-1 <UI pid=F0 Len=75  
>> >[12:08:04]
>>
>> @251222z4251.35S/14716.65E_099/006g006t067r000P000p000h44b10218 West
>> Moonah
>>
>>
>>  1:Fm VK7HRM-9 To T1P6T5 Via VK7DC*,WIDE2-2 <UI pid=F0 Len=13  
>> >[12:08:35]
>>
>> `IJ)l"+R/"6K}
>>
>>
>> 1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:15:48]
>>
>> ;TRAFFIC  *251227z4106.33S\14555.92E? 66 In 10 Minutes
>>
>>
>> 1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:17:44]
>>
>> ;TRAFFIC  *251229z4106.33S\14555.92E? 82 In 10 Minutes
>>
>>
>>  1:Fm VK7YBI To APRS Via TAS2* <UI pid=F0 Len=54 >[12:17:46]
>>
>> ;TRAFFIC  *251229z4106.33S\14555.92E? 82 In 10 Minutes
>>
>>
>>
>> No one can easily predict conditions or their effects and it is not the
>> fault of the operator that his/her data is travelling further than what
>> would normally be expected.
>>
>>
>> This is however a good example and lessoned that there are no state
>> boundaries to RF APRS and that we need to work together and cooperate
>> with
>> each other on common standards and  coordination with APRS.
>>
>>
>> To this extent we should have communicated before this WICEN event with
>> VK7
>> and requested that they reduce their APRS traffic levels while the
event
>> is
>> on.
>>
>>
>> I have stopped all VK3 IGate traffic for the event duration and turned
>> off
>> VK3RGI-1 as the event is not using it today.
>>
>>
>> I'm asking APRS stations in VK3 and northern VK7 to reduce their APRS
RF
>> transmissions if the are not using the APRS network for a specific
>> purpose
>> until the WICEN in VK3 finishes at the end of today.
>>
>>
>> Thanks.
>>
>>
>> Cheers
>>
>> Richard
>>
>> VK3JFK
>>
>>
>>
>>
>>
>>
>>
>>
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>> Ozaprs at aprs.net.au
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>
>
>



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