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<div class="moz-cite-prefix">Send an APRS message to SAT99993 with
any body content. This is a pass predictor based on Bob's
published TLE from a while ago. It is probably off by up to an
hour now, but it'd be better than nothing. I'll keep it current
with each TLE that comes from Bob.<br>
<br>
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and
Win32<br>
<br>
PS. See also: <a class="moz-txt-link-freetext" href="http://aprsisce.wikidot.com/doc:satsrv">http://aprsisce.wikidot.com/doc:satsrv</a><br>
<br>
On 6/2/2015 3:39 PM, Paul Bramscher via aprssig wrote:<br>
</div>
<blockquote
cite="mid:1399708658.7325291.1433273996509.JavaMail.zimbra@comcast.net"
type="cite">
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<div aria-label="Compose body">I use GPredict, which leans on
celestrak for TLE's. I don't think I can/should manually
enter TLE's into that program. They might get wiped out with
the next network TLE refresh -- or go stale otherwise. If the
PSAT TLE's aren't yet part of the celestrak feed, is there a
web site out there (e.g. ariss.net, aprs.fi, etc.) providing
PSAT tracking? Would also be nice to see some web-based
tracking integration with openstreetmap.org -- it's becoming
quite polished lately. If time permitted, I'd tinker with
that myself.<br>
</div>
<div aria-label="Compose body"><br>
</div>
<div aria-label="Compose body">My igates don't yet run 24x7, but
I'd like to see whether my setups can hear it for passes when
I'm able to tinker in the shack.<br>
</div>
<div aria-label="Compose body"><br>
</div>
<div aria-label="Compose body">73, KD0KZE / Paul<br>
</div>
<div><br>
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<hr id="zwchr">
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data-mce-style="color: #000; font-weight: normal; font-style:
normal; text-decoration: none; font-family:
Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Nagi
Punyamurthula via aprssig" <a class="moz-txt-link-rfc2396E" href="mailto:aprssig@tapr.org"><aprssig@tapr.org></a><br>
<b>To: </b>"Stephen H. Smith" <a class="moz-txt-link-rfc2396E" href="mailto:wa8lmf2@aol.com"><wa8lmf2@aol.com></a>, "TAPR
APRS Mailing List" <a class="moz-txt-link-rfc2396E" href="mailto:aprssig@tapr.org"><aprssig@tapr.org></a>, "Robert Bruninga"
<a class="moz-txt-link-rfc2396E" href="mailto:bruninga@usna.edu"><bruninga@usna.edu></a><br>
<b>Sent: </b>Tuesday, June 2, 2015 12:53:06 PM<br>
<b>Subject: </b>Re: [aprssig] PSAT digipeater is ON<br>
<div><br>
</div>
I'm trying to track the orbit for PSAT using celestrak TLE
however, can't seem to find him there. Can someone share
where one can find the TLE for PSAT<br>
<a class="moz-txt-link-abbreviated" href="http://www.celestrak.com/NORAD/elements/amateur.txt">www.celestrak.com/NORAD/elements/amateur.txt</a><br>
<div><br>
</div>
this is a fantastic milestone in the APRS technology wave;
Congrats to Bob, et al involved in landing this project.<br>
<div><br>
</div>
Thanks<br>
<div><br>
</div>
73, N0AGI, Nagi<br>
<a class="moz-txt-link-freetext" href="http://N0AGI.com/">http://N0AGI.com/</a><br>
<a class="moz-txt-link-freetext" href="http://aprs.fi/info/N0AGI">http://aprs.fi/info/N0AGI</a><br>
<div><br>
</div>
<br>
-----Original Message-----<br>
From: aprssig [<a class="moz-txt-link-freetext" href="mailto:aprssig-bounces@tapr.org">mailto:aprssig-bounces@tapr.org</a>] On Behalf Of
Stephen H. Smith via aprssig<br>
Sent: Tuesday, June 02, 2015 12:06 PM<br>
To: Robert Bruninga; TAPR APRS Mailing List<br>
Subject: Re: [aprssig] PSAT digipeater is ON<br>
<div><br>
</div>
On 6/2/2015 9:38 AM, Robert Bruninga via aprssig wrote:<br>
> APRS activists:<br>
><br>
<div><br>
</div>
> I don’t expect anyone to wear out their rotators tracking
PSAT, no, <br>
> just a simple vertical over a ground plane will do.
Either a 19” <br>
> vertical whip over a large 6 foot square ground plane or
even better, <br>
> a 58” vertical monopole over the ground plane. This ¾
wavelength <br>
> vertical has almost 7 dBi gain and will pick up signals
during the few minutes overhead.<br>
<div><br>
</div>
<br>
I currently have an Icom AH-7000 discone monitoring 145.825
for the ISS digipeter running 24/7.<br>
<div><br>
</div>
Go to <a class="moz-txt-link-rfc2396E" href="http://WA8LMF.net/map"><http://WA8LMF.net/map></a> and follow the links
there.<br>
<div><br>
</div>
It appears to be not very effective for high-elevation RX. I
assume the <br>
discone has more of a vertical dipole-like pattern that favors
the horizon rather than over head, perhaps with slightly
fatter lobes than a normal vertical dipole. As I often say,
it's equally poor at all frequencies from<br>
50-1000 MHz.....<br>
<div><br>
</div>
I assume the 3/4-wave vertical, over an adequate ground plane,
would have multiple lobes with one up-tilted substantially,
and would favor high-angle RX better than the discone. Albeit
with still a null at at or near the zenith.<br>
<div><br>
</div>
Any sense how the 3/4-wave compares with the discone?<br>
<div><br>
</div>
I am considering building a Lindenblad antenna (four 1/2-wave
dipoles arranged in a horizontal square with each one tilted
about 30 degrees from horizontal) that supposedly creates a
nearly hemispherical pattern that is circularly polarized at
the zenith. Apparently the FAA uses these to communicate with
aircraft anywhere from the horizon to directly overhead.<br>
<div><br>
</div>
Anyone have experience with the Lindenblad for satellite
downlinks on 2M? How <br>
does it compare with the other two above?<br>
<div><br>
</div>
___________________________________<br>
<div><br>
</div>
Stephen H. Smith wa8lmf (at) aol.com<br>
Skype: WA8LMF<br>
EchoLink: Node # 14400 [Think bottom of the 2-meter band]<br>
Home Page: <a class="moz-txt-link-freetext" href="http://wa8lmf.net">http://wa8lmf.net</a><br>
<div><br>
</div>
Live Off-The-Air APRS Activity Maps<br>
<a class="moz-txt-link-rfc2396E" href="http://wa8lmf.net/map"><http://wa8lmf.net/map></a><br>
<div><br>
</div>
Long-Range APRS on 30 Meters HF<br>
<a class="moz-txt-link-rfc2396E" href="http://wa8lmf.net/aprs/HF_APRS_Notes.htm"><http://wa8lmf.net/aprs/HF_APRS_Notes.htm></a><br>
<div><br>
</div>
<br>
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<a class="moz-txt-link-freetext" href="http://www.tapr.org/mailman/listinfo/aprssig">http://www.tapr.org/mailman/listinfo/aprssig</a><br>
_______________________________________________<br>
aprssig mailing list<br>
<a class="moz-txt-link-abbreviated" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br>
<a class="moz-txt-link-freetext" href="http://www.tapr.org/mailman/listinfo/aprssig">http://www.tapr.org/mailman/listinfo/aprssig</a><br>
</div>
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<pre wrap="">_______________________________________________
aprssig mailing list
<a class="moz-txt-link-abbreviated" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>
<a class="moz-txt-link-freetext" href="http://www.tapr.org/mailman/listinfo/aprssig">http://www.tapr.org/mailman/listinfo/aprssig</a>
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