[OZAPRS] Findu and Email Unreliable ?
Ron Perry
ronk at sunlinux.com.au
Fri Mar 12 08:42:44 EST 2004
Hi Guys,
I've been trying to diagnose a problem that Geoff VK2EO has with his
home station position. Currently fundu shows he is "in the ballpark",
however UI-View and his transmitted shows that he is in the Tasman.
I think he is beaconing 1 degree to far south.
If this is the case then I suspect there could be a problem with fundu.
Regards,
Ron
vk3ecv
Richard Hoskin wrote:
>
> Hi Tony,
>
> I've not recently experienced any major problems with findu although I
did notice this problem a few years ago.
>
> All relevant data for stations I have been monitoring over the past few
months has been as I would have expected. The Site Alert data from findu
does not have any holes in it that can not be explained and a number of
VK3 stations that I checked on and compared with RF data are correct.
>
> Remember that findu has a filter that will filter out what it thinks is
bad or duplicated packets.
>
> If you look at the following:
>
> http://www.findu.com/cgi-bin/raw.cgi?call=vk3byd-15&time=1
>
http://www.findu.com/cgi-bin/tele1.cgi?call=vk3cv-1&last=96¶m=1&b=0.5&
label=Current Temperature&units=Celceus&autorange=1
>
> You will see that the data is consistant.
>
> I would suspect it may be your local IGate that is causing findu to
think that the packets it is receiving are corrupted. As a test you could
set up UI-View as an IGate and see if there is any difference in the data
Findu reports. What version of aprsd is the IGate running?
>
> It would be an inefficient use of limited Australian APRS resources to
provide an Australian findu unless it added additional functionality that
the International on does not have.
>
> You might like to email Steve Dimse if the problem persists as he may
have experienced similar problems in the passed.
>
> Cheers
> Richard
> VK3JFK
>
> ----- Original Message -----
> From: Tony Hunt <wavetel at iname.com>
> Date: Thursday, March 11, 2004 7:44 pm
> Subject: [OZAPRS] Findu and Email Unreliable ?
>
>
>>I wonder if somebody can explain for me these things ?? Maybee Richard
>>Hamish or Geoff ..
>>
>>Ive noticed that Findu in particular is very intermittent .. It
>>will not
>>seem to record posits sometimes for hours even though they are
>>hitting the
>>internet feeds here in VK .. Also Email rarely works.. This seems
>>to persist
>>for days and then comes good for a while mysteriously..
>>
>>Let me explain.. Ive noticed this using ISS quite often .. In that
>>a posit
>>downlinks and hits the Igate and makes it onto the national map
>>fine.. I
>>have had a PC running Ui-View logged onto the VKaprs server
>>running no RF
>>gear and seen the posits appear fine on the map.. This is proof that
>>somethings amiss.. These posits dont get to Findu..
>>
>>
>>The web page for the stations heard via ISS reveals this flaw as
>>well since
>>they have started putting maps up there http://www.ariss.net/ ..
>>Every few
>>days we seem to get a blast of stations appearing on the world map
>>in VK5
>>VK3 VK2 and then it seems to go blank for days.. I am running a
>>24/7 Satgate
>>here and frequently put posits through it and onto the net..
>>
>>I know VK3JTM runs a Satgate also and I see he gates ISS frames at
>>timeswhen it does work..
>>
>>Our Igate is currently connected to second.aprs.net.au ..
>>
>>Ive also found it rare that EMAIL works via APRS messaging and
>>even rarer
>>that one gets a ACK back as well..
>>
>>On comming home after driving VK5AH-9 I find checking imediatlely
>>that no
>>posits have been heard for 3-4 hours at times from VK5AH-9 on
>>FINDU and yet
>>the Igate is running here in Adelaide and we are seeing Igate
>>traffic ok on
>>air..
>>
>>So there appears to be a blockage in the pipe from VK to the US
>>which is an
>>issue ve raised before.. Thats just a speculation from myself but
>>I would
>>like sombody to give us another theory..
>>
>>Just because a APRS frame makes it to the national server doesnt
>>mean that
>>it got to the rest of the world..
>>This is a real pain with Sat downlinks in particular as one can
>>only get
>>about 1-2 posits a day through a Satgate .. It seems obserd that
>>the weak
>>link in the system is in fact the internet feeds and not the RF
>>side which
>>involves Sat uplinks and downlinks..
>>
>>Do we need a FINDU and EMAIL server based in VK ?? It may be a
>>big ask but
>>I thought I would ask the question.. I suspect it will solve the
>>problemsIve outlined above ..
>>
>>Any comments ?? I will ignore all flames ..
>>
>>Tony Hunt VK5AH
>>
>>
>>_______________________________________________
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>>ozaprs at marconi.ics.mq.edu.au
>>http://marconi.ics.mq.edu.au/cgi-bin/mailman/listinfo/ozaprs
>>
>
>
>
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