[amsat-bb] Tutorial on Working APRS Contacts on Kenwood TM-D710

[John Brier]

Thanks for explaining Bob. I wasn't clear on just how much "heavier" APRS
packets were.

It would definitely take a concerted effort to get people to use STATUS
messages more.

73, John Brier KG4AKV

On Sat, Apr 13, 2019, 10:15 Robert Bruninga via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> I agree, APRS messaging is a sense of satisfaction, but it generally is a
> 5-times multiplier of packet load just to get a single text through.  In
> fact, that is the whole reason APRS was invented compared to conventional
> packet, to avoid the huge explosion of packets due to all the retries and
> acks.
>
> And via a space digipeater with 100% "hidden transmitter" problem, this
> multiplication of QRM is unrelenting.
>
> If most people are not doing it, then maybe we need some new training.  IF
> PSAT2 and BRICSAT2 gets launched successfully and with AISAT-1 and the new
> ISS digipeater, that might be a good time to start a new educational
> campaign.
>
> Once one has selected the STATUS TEXT MENU, then each time a new callsign
> is seen, it only takes a single MENU press, and then rapid 5 presses of OK
> to be right on the STATUS TEXT editing page.  Then just overwriting the
> last few bytes of the new station's call and hit OK and the new packet is
> ready to go.  Then toggling the BCON button can resend it.
>
> Bob
>
> On Sat, Apr 13, 2019 at 9:48 AM John Brier <johnbrier at gmail.com> wrote:
>
> > It's not a tutorial but you can see me operating the ISS digipeater in
> > these videos:
> >
> > https://www.youtube.com/watch?v=woSzJ-PtH2M
> >
> > https://www.youtube.com/watch?v=nhv7oz_El80
> >
> > Note the ISS digipeater was on UHF briefly when the VHF radio was
> > having issues. It hasn't been on UHF since.
> >
> > Bob, I don't think people use STATUS messages in practice at least on
> > the ISS digipeater, so I'm not sure that's good advice in this case. I
> > personally like seeing notification that I specifically was sent a
> > message.
> >
> > 73, John Brier KG4AKV
> >
> > On Sat, Apr 13, 2019 at 9:36 AM Robert Bruninga via AMSAT-BB
> > <amsat-bb at amsat.org> wrote:
> > >
> > > Generally, APRS messages are not welcome via satellites because they
> > > require ACKS and retries. and can only be read easily by the recepient.
> > >
> > > The most efficient way to communicate with APRS is to learn to modify
> > your
> > > STATUS text quickly and include all comms in those 43 allowed
> characters.
> > > That way, the text gets a free ride with your GRID and position packet.
> > >
> > > Bob, WB4APR
> > > That way, eveyrone can see your messages and you can RETRY by toggling
> > the
> > > BCON button.  As soon as you see your "MY PACKET" digipeated, you can
> > > assume the other person saw it and move on.
> > >
> > > On Sat, Apr 13, 2019 at 3:11 AM Les Rayburn via AMSAT-BB <
> > amsat-bb at amsat.org>
> > > wrote:
> > >
> > > > Searching YouTube and Google without a lot of success. I’ve found
> > videos
> > > > on how to set up the TM-D710 for APRS QSO’s, but nothing that
> > demonstrates
> > > > the actual steps involved in completing a contact.
> > > >
> > > > Should I “beacon” a message that says “CQ DE N1LF EM63 K”? How will I
> > know
> > > > if I’m getting a response? Do I then transmit pre-programmed user
> > messages?
> > > > How do I enter the other stations call sign on the fly? How do I
> > switch to
> > > > the next message?
> > > >
> > > > I really need a “for dummies” guide on this…and can’t seem to find
> it.
> > > >
> > > > Can anyone point me towards an article or YouTube video?
> > > >
> > > >
> > > > 73,
> > > >
> > > > Les Rayburn, N1LF
> > > > Maylene, AL
> > > > EM63nf
> > > > AMSAT #38965, ARRL Life Member, CVHS Life Member, SVHF Member
> > > >
> > > >
> > > >
> > > >
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> to all interested persons worldwide without requiring membership. Opinions
> expressed
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> AMSAT-NA.
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