[OZAPRS] Igate Delays odity

Geoff Gatward geoff.gatward at optusnet.com.au
Fri Nov 15 07:38:40 EST 2002


Tony,
Send me the config file from the Igate (aprsd.conf) and I'll have a look.
We don't have delay issues like this in Sydney through my gate...

Regards,

Geoff  VK2XJG

-----Original Message-----
From: ozaprs-admin at marconi.ics.mq.edu.au
[mailto:ozaprs-admin at marconi.ics.mq.edu.au]On Behalf Of Tony Hunt
Sent: Thursday, 14 November 2002 10:59 PM
To: OZ-APRS Mial-list
Subject: [OZAPRS] Igate Delays odity


Ive observed some odd things about our Igate here in Adelaide Vk5BBS ..
Messaging via the Igate onto the Net seems very difficult if not
impossible
at times..

Looking further at it of late its been real interesting to find that there
are HUGE delays involved.. If I try sending a message or PING to a station
thats on the NET it even then seems to have delays..  10-15 mins ..

So I Connected my UIView up to the NET and turned off the radios and tryed
to send some messages into Adelaide network.. It retryed out as usual
after
a few mins.. Ive got retry time at 20 seconds..  I left it running and
found
after about 15 mins I actually got a response back well after it had
retried
out..

Maybee Hamish can give us a clue.. Where on earth is the delay happening
??
Its not in the RF path in Adelaide.. Once the frame leaves the Gate then
it
hits the network and travels forward pretty quick..  Ive found these sort
of
things before previously but never tried testing the other way.. 10-15
mins
of delays is pretty well useless for Igate messaging..

I realise that Posit frames are far from real time across the Igate but
messaging is surely different.. Is there some setting in APRSD we have
wrong
at VK5BBS ?? Its got me ..

Ive sent stuff from RF in Adelaide like a Query to a station VK5ZAF that I
can see through the gate.. Hes not running RF by the looks but shows up on
our maps thru the gate.. I get long delays on the Query.. Several mins,
thats if I get a response at all..

Ive sent a message to the Digi-Ned machine Via the NET on Uiview to
VK5BRC-7
that runs all the time.. Send TRK PCSA or TRK UO14 for example.. On RF I
get
a response within 30 seconds.. It gives an ACK and sends a response
message
back putting a Object up on the MAP also.. Ive seen it time out and then
15
mins later send me a message back in response..

Wheres the Delay or what are we doing wrong? Frankly the functionality of
the Igate just doesnt seem to be there.. We get a good map of the rest of
the country but trying to chat with somebody via the Igate is something
none
of us have had much luck with.. Most of the operators put it down to RF
problems at either end but I am in range of the Igate on simplex hearing
frames from it constantly and getting frames into it directly..

I would really like to get a grip on whats going on with this and get it
working properly..

Tony  Hunt  VK5AH


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