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<p>Note: I wrote the PS (and the entire response) before catching up
fully on my e-mail, so I can only state that "great minds think
alike"...<br>
</p>
<div class="moz-signature">Lynn (D) - KJ4ERJ - Author of APRSISCE
for Windows Mobile and Win32
<br>
<br>
</div>
<div class="moz-cite-prefix">On 7/1/2019 8:20 AM, Lynn W Deffenbaugh
(Mr) wrote:<br>
</div>
<blockquote type="cite"
cite="mid:77718f1d-20a7-496b-11a9-eb59e59fc282@arrl.net">
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<div class="moz-signature">
<div class="moz-cite-prefix">On 6/30/2019 8:54 AM, Robert
Bruninga wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALdCfN+9n-C5CE=_9K3TDtHvFC=n8LhHubC0g7r=q1F4nuMosQ@mail.gmail.com">
<div dir="ltr">
<div dir="ltr">PSAT2 uses an un-numbered APRS message format
to send me an EMAIL status once a day so that I can be
aware of its status wherever I can receive email. It
depends on a working "EMAIL" engine to pull that status
report from the APRS-IS and forward it to my email
address.<br>
<div><br>
</div>
</div>
</div>
</blockquote>
<p>Actually, according to this raw packet captured by aprs.fi,
the message packet IS requesting an acknowledgement:</p>
<p> </p>
<blockquote type="cite"><span class="raw_line"
style="box-sizing: border-box; font-family: Verdana, Arial,
Helvetica, sans-serif; white-space: nowrap; color: rgb(0, 0,
0); font-size: 12px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-style: initial; text-decoration-color:
initial;">2019-06-28 20:47:35 EDT:<span> </span><b
style="box-sizing: border-box; font-weight: 700;"><a
href="https://aprs.fi/?c=raw&limit=&call=PSAT2-1"
style="box-sizing: border-box; background-color:
transparent; color: rgb(0, 0, 255); text-decoration:
none; cursor: pointer; outline-style: none;"
moz-do-not-send="true">PSAT2-1</a></b>>APOFF,<a
href="http://aprs.fi/?c=raw&limit=&call=ARISS"
style="box-sizing: border-box; background-color:
transparent; color: rgb(0, 0, 255); text-decoration: none;
cursor: pointer; outline-style: none;"
moz-do-not-send="true">ARISS</a>,qAR,<a
href="http://aprs.fi/?c=raw&limit=&call=VK6HAM-2"
style="box-sizing: border-box; background-color:
transparent; color: rgb(0, 0, 255); text-decoration: none;
cursor: pointer; outline-style: none;"
moz-do-not-send="true">VK6HAM-2</a>::EMAIL :sats@usna.edu PSAT2 reporting Home [004960,0I801]{019</span><br
style="box-sizing: border-box; color: rgb(0, 0, 0);
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px; font-style: normal; font-variant-ligatures:
normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; background-color: rgb(255, 255, 255);
text-decoration-style: initial; text-decoration-color:
initial;">
<span class="raw_line" style="box-sizing: border-box;
font-family: Verdana, Arial, Helvetica, sans-serif;
white-space: nowrap; color: rgb(0, 0, 0); font-size: 12px;
font-style: normal; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255,
255, 255); text-decoration-style: initial;
text-decoration-color: initial;"></span></blockquote>
<p>So, with this packet coming from space, a properly
implemented EMAIL server would in fact try to send an ack
message back to PSAT2-1. Hopefully none of the satellite
IGates route messages from the -IS to the satellite frequency
RF!</p>
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and
Win32 <br>
</div>
<div class="moz-signature"><br>
</div>
<div class="moz-signature">PS. You could have accomplished an
locally implemented status check by simply writing an APRS-IS
client that used a "b/PSAT2-1" filter and captured/counted
received packets. Said client could then (terrestrially) send
you a summary e-mail to whatever detail level you might like at
whatever (changeable) interval you might want. But then,
hindsight is always 20/20.</div>
<div class="moz-signature"><br>
</div>
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</pre>
</blockquote>
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