[OZAPRS] Fill In Digi needed

Thu Nov 9 16:05:25 AEDT 2017

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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