[OZAPRS] Fill In Digi needed

Thu Nov 9 19:07:57 AEDT 2017

Bob,
In what seems to be another lifetime I was Pres of SARC. We had a heap of
repeaters on Cambewarra including a digi. All it was was a Tiny 2 and an
828. I know we were losing the site when I left, around 1990, but I wonder
what happened to the hardware?

Is Far South Coast still active?

What about Nowra Hill?

My Fill in/ igate here is an 828, Tiny2 and raspberry pi running xastir.
Never gives a problem. The actual digi is at Trentham Cliffs  around 20k
away

norm vk3xci   (ex vk2xci)

On Thu, Nov 9, 2017 at 6:08 PM, Mark Jessop <lenniethelemming at gmail.com>
wrote:

> Some information here: https://amsat-uk.org/2011/10/28/aprs-pass-
> predictor/
>
> Too long; didn't read (tl'dr) version: Send a message (containing
> anything, even blank) to 'ISS', and if you've beaconed a position recently,
> a message will be sent back to you via APRS-IS giving you the next pass
> info. Similar for some other satellites.
>
> WARNING: These services will respond to ACKs from your radio. So Kenwood
> users had better disable auto-acking else you end up in a loop of message /
> response :-)
>
> 73
> Mark VK5QI
>
> On Thu, Nov 9, 2017 at 3:05 PM, Matthew Cook <vk5zm at bistre.net> wrote:
>
>> That's interesting, how are you generating the messages from home or the
>> car or something ?
>>
>> 73
>>
>> Matthew
>> VK5ZM
>>
>> On 8 November 2017 at 19:14, Peter Wicklein <vk3tbn at hotmail.com> wrote:
>>
>>> I use APRS messaging for next AOS of next APRS sat at my current
>>> location when portable and traveling light. Works well.😀
>>>
>>>
>>>
>>> Sent from my Windows 10 phone
>>>
>>>
>>> ------------------------------
>>> *From:* OZAPRS <ozaprs-bounces at aprs.net.au> on behalf of Matthew Cook <
>>> vk5zm at bistre.net>
>>> *Sent:* Tuesday, November 7, 2017 4:44:58 PM
>>> *To:* Australian APRS Users
>>> *Subject:* Re: [OZAPRS] Fill In Digi needed
>>>
>>> Yes RX iGates "can" break two-way messaging, but only in certain
>>> circumstances.
>>>
>>> We lost a very good Wide2 digi that covered the Adelaide plains here in
>>> VK5 a while back and as a result there are now black spots where APRS
>>> messaging no longer works.
>>>
>>> To make it worse there is a RX only iGate that has a good shot into that
>>> area, so it picks up the message fires it back into APRS-IS only to
>>> reappear via our internet->rf gateway...  the issue is when you reply over
>>> RF it goes no where.  You've got to check the path to work out if it's
>>> worth while.   Turning that RX only iGate into a digi to aleviate the issue
>>> is not a good idea since there are three WIDE2's within cooeee of that area
>>> so the forth will do nothing but create congestion.  Catch 22.  One day we
>>> may find a site to replace the one we lost.
>>>
>>> With respect to messaging many of us used to take advantage of the QSY
>>> feature of our kenwoods (it tells you where other stations are listening),
>>> so when the local repeater was busy I could message others to QSY to an
>>> adjacent repeater without breaking in and QSY-ing on the first repeater.
>>> With the holes in the messaging network this has proven harder.
>>>
>>> Anyway that is the only negative, we have a plethora of RX only iGates
>>> around here now days, so it's interesting to see how things change.
>>>
>>> 73
>>>
>>> Matthew
>>> VK5ZM
>>>
>>> On 7 November 2017 at 15:32, vk2tv <vk2tv at exemail.com.au> wrote:
>>>
>>>> I'm not voting either way on rx only igates. Some scribes on a US aprs
>>>> list claim they break messaging but what's the experience in the land of
>>>> Oz? I've personally found aprs messaging to be useless; maybe others have
>>>> used it with success. Just asking out of curiosity.
>>>>
>>>> Ray vk2tv
>>>>
>>>> On 07/11/17 14:56, Matthew Cook wrote:
>>>>
>>>> Hi Bob,
>>>>
>>>> There is nothing wrong with using a WIDE1-1 to fill in a local area,
>>>> ideally you want your fill-in digi to hit VK2HIM.  The whole point of a
>>>> WIDE1-1, is to pick up local stations and throw them up to the WIDE2's for
>>>> distribution.  Once upon a time they were called RELAY's, until the new
>>>> WIDEx-n paradigm came into effect.
>>>>
>>>> Your RX only iGate wont cause problems, APRS-IS removes dupes server
>>>> side *before* distribution.
>>>>
>>>> I'd +1 APRX as Scott has suggested, you might like to search Owen
>>>> VK1OD's website for information on what he worked on previously.  There are
>>>> some fixes to APRX's digi system that are well worth the effort (
>>>> https://github.com/owenduffy
>>>> <https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fowenduffy&data=02%7C01%7Cvk3tbn%40hotmail.com%7C9173ea305b034e95b27a08d525a2b453%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636456303099284737&sdata=nU4SfB9zV7yTCY5Knjg3Xeta7tkccwNVt1T78qLpHOY%3D&reserved=0>
>>>> ).   I've been running a rPi RX Only iGate here in VK5 for the past 5
>>>> or so years, they work well.
>>>>
>>>> YMMV.
>>>>
>>>> 73
>>>>
>>>> Matthew
>>>> VK5ZM
>>>>
>>>> On 7 November 2017 at 13:28, Bob <vk2byf at gmail.com> wrote:
>>>>
>>>>> Hi
>>>>>
>>>>> I'm Bob, VK2BYF, in Nowra
>>>>>
>>>>> Having lost our local digi some years ago and our local ham population
>>>>> being very sparse we seem to have dropped off the APRS map.
>>>>>
>>>>> My Tiny Track in my motor vehicle can't be heard by the nearest Digi,
>>>>> VK2HIM near Gerringong, until I gain some altitude.
>>>>>
>>>>> To get myself back on the APRS map I decided to build a RX only Igate
>>>>> using a Raspberry Pi, RTL-SDR & direwolf which seems to work ok.
>>>>>
>>>>> I experimented with a laptop running direwolf, KA2DDO's YAAC and a
>>>>> FT-817 as a fill in digi, Wide 1-1, which also seem to work ok.
>>>>>
>>>>> The next phase was going to be to setup a RF digi using a cheap
>>>>> Chinese VHF/UHF Radio to fill in the local RF hole we have here in the
>>>>> Bomaderry, Nowra area.
>>>>>
>>>>> Knowing very little about APRS but the basics and having been
>>>>> monitoring this forum for a while, I have more questions than answers.
>>>>>
>>>>> A wide 1-1 to fill a local hole is that rite or wrong?
>>>>>
>>>>> RX only IGate to fill a local RF hole, Is this going to cause problems?
>>>>>
>>>>> Should I even bother to build a proper RF in and out digi?
>>>>>
>>>>> What is the best configuration just to fill in a local RF hole and get
>>>>> a fair section of the Princes highway back on the map?
>>>>>
>>>>> BTW I prefer to run things on Linux. YAAC, a java applications work
>>>>> very nicely on Linux.
>>>>>
>>>>> Regards Bob vk2byf
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>
>>>>
>>>>
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>>>>
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>>>
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>>
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