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CX2SA > SATDIG 15.08.09 06:14l 649 Lines 19152 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Antenna pointing (john heath)
2. Re: rotator questions (Daniel Schultz)
3. Re: rotator questions (jmfranke@xxx.xxxx
4. Orbitron-Wispdde rotor control (Gary Lockhart)
5. Re: rotator questions (Edward Cole)
6. AO-7 mode B (Roland Zurmely)
7. ANDE website telemetry corrected (Ivan Galysh)
8. Re: Grids on the Road (David Gendle)
9. Lighthouse/Lightship Special Event (Peter)
10. Fw: Lighthouse/Lightship Special Event (Peter)
11. irc channel? (Joseph Armbruster)
12. Re: irc channel? (w4upd)
13. + Dragonsat / ANDE-2 (PY2ZX)
14. Re: + Dragonsat / ANDE-2 (Mike Rupprecht)
15. Wallops APRS Space Launch (Robert Bruninga)
----------------------------------------------------------------------
Message: 1
Date: Thu, 13 Aug 2009 20:35:51 +0100
From: "john heath" <g7hia@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Antenna pointing
To: "Tim Lilley" <n3tl@xxxxxxxxx.xxx>
Cc: amsat <amsat-bb@xxxxx.xxx>
Message-ID: <C102324B8FD6480F8761537FAB578C75@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Tim and the list,
Thanks for the kind comments.
Its not my original idea.
I picked it up years ago, possibly from Amsat-UK's journal OSCAR News, or
possibly eleswhere.
Just happy to pass it on. Someone may find it usefull, or suggest a
better/simpler implimentation of the same basic idea.
73 John G7HIA
------------------------------
Message: 2
Date: Thu, 13 Aug 2009 15:42:47 -0400
From: "Daniel Schultz" <n8fgv@xxx.xxx>
Subject: [amsat-bb] Re: rotator questions
To: <amsat-bb@xxxxx.xxx>
Message-ID: <307NHmTpv4758S14.1250192567@xxxxxxxx.xxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
To find true north at your QTH:
Go to
http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-
day-us
Enter your nearest city and state into the menu
If you prefer to enter latitude and longitude, or if you are outside of the
USA, go to
http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-one-
day-world
You will get a chart like this for your location:
Thursday
13 August 2009 Eastern Daylight Time
SUN
Begin civil twilight 5:50 a.m.
Sunrise 6:19 a.m.
Sun transit 1:12 p.m.
Sunset 8:05 p.m.
End civil twilight 8:33 p.m.
MOON
Moonrise 11:04 p.m. on preceding day
Moon transit 6:29 a.m.
Moonset 2:04 p.m.
Moonrise 11:44 p.m.
Moonset 3:13 p.m. on following day
Make a note of the "Sun transit" time. Set your watch by WWV or some other
reliable time source. Drive a stake in the ground (use a plumb line to make
sure it is vertical). Go outside at the exact moment of the sun transit, at
that time the shadow of the stake (or your tower if it is vertical) will be
true north. Mark the ground at that exact time.
Dan Schultz N8FGV
------------------------------
Message: 3
Date: Thu, 13 Aug 2009 16:58:06 -0400
From: <jmfranke@xxx.xxx>
Subject: [amsat-bb] Re: rotator questions
To: amsat-bb@xxxxx.xxxx Daniel Schultz <n8fgv@xxx.xxx>
Message-ID: <20090813165806.9FAOY.128045.imail@xxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8
Or go to:
http://www.usno.navy.mil/USNO/astronomical-applications/data-services/alt-az-
us
enter your location and get the azimuth of the Sun for every 10 minutes so you
do not have to worry as much about clouds or trees, etc.
John WA4WDL
---- Daniel Schultz <n8fgv@xxx.xxx> wrote:
> To find true north at your QTH:
>
> Go to
> http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-
one-day-us
>
> Enter your nearest city and state into the menu
>
> If you prefer to enter latitude and longitude, or if you are outside of the
> USA, go to
> http://www.usno.navy.mil/USNO/astronomical-applications/data-services/rs-
one-day-world
>
> You will get a chart like this for your location:
>
> Thursday
> 13 August 2009 Eastern Daylight Time
>
> SUN
> Begin civil twilight 5:50 a.m.
> Sunrise 6:19 a.m.
> Sun transit 1:12 p.m.
> Sunset 8:05 p.m.
> End civil twilight 8:33 p.m.
>
> MOON
> Moonrise 11:04 p.m. on preceding day
> Moon transit 6:29 a.m.
> Moonset 2:04 p.m.
> Moonrise 11:44 p.m.
> Moonset 3:13 p.m. on following day
>
> Make a note of the "Sun transit" time. Set your watch by WWV or some other
> reliable time source. Drive a stake in the ground (use a plumb line to make
> sure it is vertical). Go outside at the exact moment of the sun transit, at
> that time the shadow of the stake (or your tower if it is vertical) will be
> true north. Mark the ground at that exact time.
>
> Dan Schultz N8FGV
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Thu, 13 Aug 2009 17:53:34 -0700 (PDT)
From: Gary Lockhart <gary_lockhart33@xxxxx.xxx>
Subject: [amsat-bb] Orbitron-Wispdde rotor control
To: amsat-bb@xxxxx.xxx
Message-ID: <546270.12559.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
All,
I've been trying to get my pair of U-100 rotors under automatic control from a
modified version of KO6TH AZ/EL Rotor Control program for a couple of months
and have come up against a show stopper to get AZ/EL data from Orbitron on the
serial port to load into a BS2. The BS2 loads programs and will display static
data into a 2-line LCD display with no problem. It seems to be just the Wisp-
DDE data is not recognized and stored. I have tried the original WispDDE and
the Orbitron-Wispdde code AD5JN put out on the web but neither seem to work.
I've disconnected the ATN line on the program-serial cable when trying receive
data from the serial port but still no joy. I am sure this will work if I knew
what I am doing wrong.
Thanks for your attention, Gary AB3ID
Snow Hill, MD ?
------------------------------
Message: 5
Date: Thu, 13 Aug 2009 22:48:17 -0800
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: rotator questions
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <200908140648.n7E6mINT058205@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Using my 85cm offset feed dish on 2400-MHz with a 0.6 dBNF preamp
(MK232A2), I could see about 1/2 s-unit of sun noise and a similar
amount of ground noise when looking at nearby forest on the
horizon. Comparing the sun shaddow on the dish vs. noise peak az-el
readings would indicate how close the feed was to perfect boresight
and alignment.
73, Ed - KL7UW
At 06:53 AM 8/13/2009, i8cvs wrote:
>Hi Nigel, G8IFF/W8IFF
>
>You are right
>
>Aiming the antenna for maximum receiver Sun noise is the best method
>because the antenna pattern can be affected by some squint angle and not
>be perfectly aligned with the boom but receiving Noise from the Sun in
>2 meters and 70 cm implies a very high antenna gain and a very low overall
>receiving Noise Figure with a very low Antenna temperature.
>
>By the way at microwave such as 2400 MHz it is possible to receive the Sun
>Noise using a modest dish diameter even when the Sun activity is low as
>actually with around 67 sfu at 2800 MHz (10.7 cm)
>
>See here:
>
>http://www.swpc.noaa.gov/ftpdir/indices/DSD.txt
>
>I use this method with my 1.2 meter dish 27 dBi at 2400 MHz and an overall
>receiving Noise Figure of 1 dB equivalent to a Noise Temperature of 75
>kelvin
>
>With the above dish and receiver I actually get a Sun Noise of about 3.5 dB
>of (S+N)/N wich is easily readible on the S meter or better using an AC
>Voltmeter connected to the audio output of receiver.
>
>Using a tracking program and aiming the dish for maximum Sun Noise
>it is possible to calibrate the AZ and EL angle of the control box for the
>through reference Sun position in the sky.
>
>In addition repeating time to time the above procedure and knowing the
>actual Sun's sfu it is possible to monitor the state of healt of our
>receiving system.
>
>By the way without an HEO satellite using 2400 MHz the above procedure
>is as well a little and interesting Radioastronomy exercise.
>
>Best 73" de
>
>i8CVS Domenico
>
>----- Original Message -----
>From: "Nigel Gunn G8IFF/W8IFF" <nigel@xxxxx.xxx>
>To: "Greg D." <ko6th_greg@xxxxxxx.xxx>
>Cc: <amsat-bb@xxxxx.xxx>; <n0jy@xxxxxxx.xxx>
>Sent: Thursday, August 13, 2009 2:17 PM
>Subject: [amsat-bb] Re: rotator questions
>
>
> > How about aiming for maximum receiver noise? That should be even more
>accurate.
> >
> > Greg Wrote: and then adjust the antenna so the shadow falls directly
>down the antenna boom.
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> > Not an AMSAT-NA member? Join now to support the amateur satellite program!
> > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
>
>
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Fri, 14 Aug 2009 03:05:56 -0700 (PDT)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
Subject: [amsat-bb] AO-7 mode B
To: AMSAT <amsat-bb@xxxxx.xxx>
Message-ID: <646175.91749.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Here is an audio recording from QSO with Andre ZS2BK, distance = 6890 km !
?
http://www.qsl.net/py4zbz/satelite/ZS2BK_AO7.wav
?
Only 2 element Yagi on VHF and 6 el on UHF:
?
http://www.qsl.net/py4zbz/satelite.htm#owa6
?
73 de Roland PY4ZBZ
?
------------------------------
Message: 7
Date: Fri, 14 Aug 2009 07:42:09 -0400
From: Ivan Galysh <ivan.galysh@xxx.xxxx.xxx>
Subject: [amsat-bb] ANDE website telemetry corrected
To: amsat-bb@xxxxx.xxx
Message-ID: <4A854D91.2030304@xxx.xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello all,
For anyone who is trying to analyze the sensor data, I discovered I put
in the wrong information about the magnetometers. The values are not
counts but measurements in uTesla.
More info will be posted such as sensor locations and magnetometer
orientation. I just need to get the CAD guy to crank out a few pictures.
Ivan
------------------------------
Message: 8
Date: Fri, 14 Aug 2009 09:10:23 -0400
From: David Gendle <dgendle@xxx.xx.xxx>
Subject: [amsat-bb] Re: Grids on the Road
To: amsat-bb@xxxxx.xxx
Message-ID: <4A85623F.8070107@xxx.xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Greetings!
I would like to add my voice to the choir of folks and thank Patrick
(WD9EWK) for the five new grids in Utah.
It was a real pleasure to find the QSLs in my mailbox and I greatly
appreciate the effort and time Patrick and the many others have spent
enhancing the amateur satellite hobby for me.
Thanks again guys!
73,
Dave - K4DLG
------------------------------
Message: 9
Date: Fri, 14 Aug 2009 10:22:23 -0400
From: Peter <roi@xxxxxxxxx.xxx>
Subject: [amsat-bb] Lighthouse/Lightship Special Event
To: AMSAT-BB@xxxxx.xxx
Message-ID: <001f01ca1cea$d9eb9360$6901a8c0@xxxxx>
Content-Type: text/plain; charset=Windows-1252
Hello All,
As part of the International Lighthouse/Lightship event, I will be
operating on most of the FM Satellites, thru the weekend. In addition we
will have AMSAT information available to the many visitors that tour the
Fire Island Lighthouse, our goal is to have fun and bring new Satellite
operators to the airwaves. So when you hear W2GSB/Lighthouse, give us a
call, you can visit http://www.gsbarc.org to view the QSL card and more
information about the event, thank you.
73,
Pete, WB2OQQ
CQ CQ... this is W2GSB/Lighthouse - Fire Island Lighthouse NYSpecial Event
Station
W2GSB/Lighthouse - August 15 and 16, 2009
Fire Island Lighthouse, Fire Island National Seashore, Fire Island, Suffolk
County, New York
The event is always held on the 3rd full weekend in August starting at 0001
UTC on Saturday and finishing at 2359 UTC on Sunday. It also now coincides
on the Sunday with the International Lighthouse Day which is an event
organized by the International Association of Lighthouse Keepers whereby as
many world lighthouses will be open to the public for the day.
The following are the various designators for the operation W2GSB/Lighthouse
location information:
Grid Square: FN-30-jp
QSL via W2GSB/LH,
PO Box 1356, West Babylon, NY 11704-0356.
S.A.S.E. Please.
The International Lighthouse/Lightship Weekend came into being in 1997 from
the Scottish Northern Lighthouses award weekend by Mike Dalrymple, GM4SUC, a
member of the Ayr Amateur Radio Group, see also this web site for further
history and this page for the event's first web site. Over the years it has
grown to over 380 lighthouses in some 51 countries around the world
participating in the event.
73,
Pete, WB2OQQ
------------------------------
Message: 10
Date: Fri, 14 Aug 2009 10:41:23 -0400
From: Peter <roi@xxxxxxxxx.xxx>
Subject: [amsat-bb] Fw: Lighthouse/Lightship Special Event
To: AMSAT-BB@xxxxx.xxx
Message-ID: <003101ca1ced$651544c0$6901a8c0@xxxxx>
Content-Type: text/plain; charset=Windows-1252
Hello,
I would like to correct the starting time for the Satellite portion of the
event.. it will be 1200 UTC, Saturday, thank you.
73,
Pete, WB2OQQ
------------------------------
Message: 11
Date: Fri, 14 Aug 2009 12:04:08 -0400
From: Joseph Armbruster <josepharmbruster@xxxxx.xxx>
Subject: [amsat-bb] irc channel?
To: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <4A858AF8.5040103@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Is there any specific server / channel that amsat folks hang out in on IRC?
Joseph Armbruster, KJ4JIO
------------------------------
Message: 12
Date: Fri, 14 Aug 2009 12:35:22 -0400
From: w4upd <updwrb@xxxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: irc channel?
To: Joseph Armbruster <josepharmbruster@xxxxx.xxx>
Cc: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <4A85924A.9090707@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
You'll find them generally at: irc://irc.radiochat.org/#amsat
Regards,
Reid, W4UPD
Joseph Armbruster wrote:
> Is there any specific server / channel that amsat folks hang out in on IRC?
>
> Joseph Armbruster, KJ4JIO
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
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>
>
------------------------------
Message: 13
Date: Fri, 14 Aug 2009 14:30:34 -0300
From: PY2ZX <py2zx.ham@xxxxx.xxx>
Subject: [amsat-bb] + Dragonsat / ANDE-2
To: amsat-bb@xxxxx.xxx
Message-ID: <4A859F3A.2040206@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello,
Can anyone confirm If that audio file is correspondent to a
Dragonsat reception?
http://archangelo.net/misc/sat/ande2/audio/dragon_10ago09_2107z.wav
I tuned in CW mode since I knew the signal was weak.
Images: http://archangelo.net/misc/sat/ande2/view.htm
Flavio PY2ZX
------------------------------
Message: 14
Date: Fri, 14 Aug 2009 20:22:50 +0200
From: "Mike Rupprecht" <mail@xxxxxxxxxxxxxx.xx>
Subject: [amsat-bb] Re: + Dragonsat / ANDE-2
To: "'PY2ZX'" <py2zx.ham@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <003401ca1d0c$3ba03a90$b2e0afb0$@xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Flavio,
yes, this signal belongs to AggieSat-2. Modulation is frequency hopping (20
KHz wide FM).
BEVO-1 is still silent.
You can see some screenshots of the VHF spectrum (and audio as well) here:
http://www.dk3wn.info/p/?cat=39
73, Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx Im
Auftrag von PY2ZX
Gesendet: Freitag, 14. August 2009 19:31
An: amsat-bb@xxxxx.xxx
Betreff: [amsat-bb] + Dragonsat / ANDE-2
Hello,
Can anyone confirm If that audio file is correspondent to a
Dragonsat reception?
http://archangelo.net/misc/sat/ande2/audio/dragon_10ago09_2107z.wav
I tuned in CW mode since I knew the signal was weak.
Images: http://archangelo.net/misc/sat/ande2/view.htm
Flavio PY2ZX
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 15
Date: Fri, 14 Aug 2009 14:42:22 -0400
From: "Robert Bruninga" <bruninga@xxxx.xxx>
Subject: [amsat-bb] Wallops APRS Space Launch
To: <amsat-bb@xxxxx.xxx>
Message-ID: <492ECC27A1964A1BBC8D25BB3505455F@xxxxx.xxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
There will be a launch to 300+ km of an APRS payload on a
sounding rocket out of Wallops Island VA, this fall. I don't
want to steal anyone's thunder, but they said I could give this
heads up. They will post details when available.
It is only 300 milliiwatts and will be on the National APRS
frequency 144.39 to make sure everyone can track it. The total
mission duration is on the order of 10 minutes from launch to
re-entry.
AMSAT stations with beams in the mid-atlantic states will be
valuable.
APRS stations with Igates with beams will be even better so the
student builders half way across the country can get their
packets live via the APRS-IS (internet)...
OMNI antennas in quiet locations should be able to hear the
packets direct, so nearby Igates with omni's probably need no
enhancement.
WB4APR, Bob
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 400
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