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

[Robert Bruninga]

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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