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CX2SA > SATDIG 08.07.08 03:05l 873 Lines 26799 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. re best antenna array? (Angus)
2. Re: Fw: Re: NASA's American Student Moon Orbiter... (i8cvs)
3. Re: best antenna array? (Henk, PA3GUO)
4. Re: Fw: Re: NASA's American Student Moon Orbiter... (Trevor)
5. Special call sign VC3C (Luc Leblanc)
6. SEEDS-II at 1 degree elevation (Henk, PA3GUO)
7. Re: Fw: Re: NASA's American Student Moon Orbiter... (i8cvs)
8. Re: NASA's American Student Moon Orbiter...
(P.Pitacco(AT)fmc.units.it)
9. ISS Status, Future Project Proposals (MM)
----------------------------------------------------------------------
Message: 1
Date: Sun, 6 Jul 2008 20:05:16 +0100
From: "Angus" <angus(AT)young5769.freeserve.co.uk>
Subject: [amsat-bb] re best antenna array?
To: <amsat-bb(AT)amsat.org>
Message-ID: <77EC7405CE7B49E3A7B5BCD3C5187866(AT)GusPC>
Content-Type: text/plain; charset="iso-8859-1"
Thanks for info on your thoughts on the best transceiver for the satellites,
what about the best array?
Here is my example:
2 mtrs 7 ele (3.5mtr boom) X yagi with switchable H, V, RHCP and LHCP and
homebrew preamp.
70cms x 12 (3.0mtr boom) X yagi with switchable H, V, RHCP and LHCP and
homebrew preamp.
23cm and 13cm 1.5 mtr homebrew dish with helical feeds.
The unit has elevation thanks to my neighbour donating a sat dish acctuator!
This will be the only array I am allowed on the house by the XYL and
neighbours (more by the XYL hi).
I shall also use it for local chin wagging on repeaters and little bits of SSB
work during tropo etc.
So what do you think, OK, hmmm not so good or fine for the job?
Is there something I have missed, I will only get one chance of putting the
unit up, so I have to get it almost perfect first time.
Any thoughts please let me know.
regards
Gus M0IKB
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------------------------------
Message: 2
Date: Sun, 6 Jul 2008 23:35:22 +0200
From: "i8cvs" <domenico.i8cvs(AT)tin.it>
Subject: [amsat-bb] Re: Fw: Re: NASA's American Student Moon
Orbiter...
To: "John B. Stephensen" <kd6ozh(AT)comcast.net>, "AMSAT-BB"
<amsat-bb(AT)amsat.org>, <kl7uw(AT)acsalaska.net>, "Joe"
<nss(AT)mwt.net>,
"G0MRF David Bowman" <g0mrf(AT)aol.com>
Message-ID: <004901c8dfb0$32856420$0201a8c0(AT)tin.it>
Content-Type: text/plain; charset="iso-8859-1"
Hi John, KD6OZH
There are many 432 MHz EME stations in USA and probably using big dish
(33 ft) in the range of 30 dBi gain with a lobe of 5 degrees at -3 dB do not
create interference to PAVE PAWS when the dish is aimed toward the moon.
73" de
i8CVS Domenico
----- Original Message -----
From: "John B. Stephensen" <kd6ozh(AT)comcast.net>
To: "i8cvs" <domenico.i8cvs(AT)tin.it>; "AMSAT-BB" <amsat-bb(AT)amsat.org>;
<kl7uw(AT)acsalaska.net>; "Joe" <nss(AT)mwt.net>; "G0MRF David Bowman"
<g0mrf(AT)aol.com>
Sent: Sunday, July 06, 2008 2:24 PM
Subject: Re: [amsat-bb] Fw: Re: NASA's American Student Moon Orbiter...
> UV is a problem as hams in much of the U.S. are limited to 1 kW EIRP on 70
> cm. The military is the primary user of the band. Recently, some repeaters
> near PAVE PAWS sites have had to reduce power to 5 W due to interference
> with the return signal from the 4 GW EIRP RADAR.
>
> 73,
>
> John
> KD6OZH
>
> ----- Original Message -----
> From: "i8cvs" <domenico.i8cvs(AT)tin.it>
> To: "AMSAT-BB" <amsat-bb(AT)amsat.org>; <kl7uw(AT)acsalaska.net>; "Joe"
> <nss(AT)mwt.net>; "G0MRF David Bowman" <g0mrf(AT)aol.com>
> Sent: Sunday, July 06, 2008 08:53 UTC
> Subject: [amsat-bb] Fw: Re: NASA's American Student Moon Orbiter...
>
>
> > ----- Original Message -----
> > From: G0MRF(AT)aol.com
> > To: nss(AT)mwt.net
> > Cc: domenico.i8cvs(AT)tin.it ; kl7uw(AT)acsalaska.net
> > Sent: Saturday, July 05, 2008 1:21 AM
> > Subject: Re: [amsat-bb] Re: NASA's American Student Moon Orbiter...
> >
> >
> > Hi Joe.
> >
> > Looking at 70cm up and 2m down, Dom has shown the 2m path can be
achieved
> > with a 13dB gain antenna on the ground and 10 Watts on the satellite.
> > That's a very small bandwidth transponder
> >
> > For the uplink, it's not quite as easy.
> > I've just run a link budget calculator and it looks like you need about
> > 80 Watts and 20dB of antenna gain on 70cm. That produces around 5000
Watts
> > ERP (allowing for losses)
> >
> > As Dom pointed out, you dont just need a signal thats just above the
> > noise level at the satellite. Up there you need enough of a signal at
the
> > receiver so that the satellites transmitter can generate a decent amount
> > of power on 2m.
> >
> > The 5kW ERP generates a signal around 16dB above noise at the
satellite.
> > With luck, that will be sufficient to produce enough power on the 2m
> > downlink.
> >
> > Of course there are a lot of variables and 'detail' . but 5kW ERP up
and
> > a 13dB gain antenna on the downlink are 'In the ballpark' for a minimal
> > working U/V system.
> >
> > Thanks
> >
> > David
> >
> > Hi David, G0MRF
> >
> > Looking at the specifications of AO40 I found that at 435 MHz the
> > equivalent noise temperature of the RX is
> > TN (k) = 500 kelvin
> > The Prx (23) i.e. the power needed by the receiver to develope a signal
> > of 23 dB over the noise is -145 dBW
> > The 435 MHz satellite antenna gain is 14 dBi
> > It is not specified the transponder output power with a S/N=23 dB
because
> > it depends on what transponder is intended to be used for the downlink.
> > Probably -145 dBW at the RX input is the power needed to get a S/N = 23
> > dB at the IF input before to be switched by the matrix to different
> > transponders.
> >
> > By the way the attenuation earth to moon at 435 MHz for 400.000 km is
197
> > dB and going back to calculations
> > we get :
> >
> > TX power at 435 MHz on earth........................ + 20 dBW (100 W)
> > 435 MHz antenna gain on earth ....................... + 18 dB
> >
> > -----------------
> > EIRP of the ground station................................ + 38 dBW (
6.3
> > kW)
> >
> > Attenuation 435 MHz for 400.000 km .............. -197 dB
> >
> > ------------------
> > Power received on a 435 MHz isotropic........... - 159 dBW
> > antenna at a distance of 400.000 km
> > Satellite antenna gain ......................................... + 14
dBi
> >
> > ------------------
> > Received power at RX input for S/N=23 dB.... - 145 dBW
> >
> > It seems that both calculations match and 5 kW to 6 kW EIRP up on 70 cm
> > and 13 dBi antenna gain on the 2 meters downlink are a minimum necessary
> > provided that the satellite antennas orbiting around the moon are
> > constantly directed toward the earth but this is a very difficult task.
> >
> > 73" de
> >
> > i8CVS Domenico
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Sent via AMSAT-BB(AT)amsat.org. 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: 3
Date: Mon, 7 Jul 2008 00:23:37 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
Subject: [amsat-bb] Re: best antenna array?
To: <amsat-bb(AT)amsat.org>
Message-ID: <2158.212.61.85.173.1215383017.squirrel(AT)webmail.iae.nl>
Content-Type: text/plain; charset=iso-8859-1
Hi Gus !
I would be jalous !
Here's my set-up:
145 Mhz, 2x6 elements DK7ZB, RHCP/LHCP
>>> perfect for the job
435 Mhz, 2x8 elements Cushcraft, fixed RHCP: do not hear AO51 on 435.150 (is
LHCP)
>>> need switchable RHCP/LHPC/H/V, but for the rest: fine
23cm, 1x33 elements Tonna, I borrow it from PE1ITR for a year,
>>> need first more experience
13cm, nothing yet
>>> your dish sounds so good !
Henk, PA3GUO
http://www.pa3guo.com (scroll down, you see me and the antenna's)
------------------------------
Message: 4
Date: Sun, 6 Jul 2008 22:42:55 +0000 (GMT)
From: Trevor <m5aka(AT)yahoo.co.uk>
Subject: [amsat-bb] Re: Fw: Re: NASA's American Student Moon
Orbiter...
To: i8cvs <domenico.i8cvs(AT)tin.it>, AMSAT-BB <amsat-bb(AT)amsat.org>,
kl7uw(AT)acsalaska.net, Joe <nss(AT)mwt.net>, G0MRF David Bowman
<g0mrf(AT)aol.com>, "John B. Stephensen" <kd6ozh(AT)comcast.net>
Message-ID: <432097.83549.qm(AT)web27208.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
The 420-450 MHz Military PRIMARY Allocation is an issue in a number of
countries, in some of which Radio Amateurs do not have transmit access to 70cm
at all.
The United Kingdom Regulator OFCOM has published on their website the
following information on Fylingdales in the UK.
Interference to UHF Band 1 and GSM Radio Systems from Fylingdales Radar
http://www.ofcom.org.uk/radiocomms/spectrumawards/completedawards/award_412/do
cuments/interference/
PDF Interference to UHF Band 1 and GSM Radio Systems from Fylingdales Radar
http://www.ofcom.org.uk/radiocomms/spectrumawards/completedawards/award_412/do
cuments/interference/report.pdf
PDF Fylingdales co-ordination tool
http://www.ofcom.org.uk/radiocomms/spectrumawards/completedawards/award_412/do
cuments/workshop/fylingdales.pdf
Fylingdales co-ordination tool workshops
http://www.ofcom.org.uk/radiocomms/spectrumawards/completedawards/award_412/do
cuments/workshop/
Questions and Answers on the award of wireless telegraphy licences for use of
the spectrum bands 412-414 MHz paired with 422-424 MHz
http://www.ofcom.org.uk/radiocomms/spectrumawards/completedawards/award_412/qa
s/
I recall that several years ago I think Peleg 4X1GP on this list, pointed out
that 70cm isn't an Amateur band (apologies Peleg if I misquote you). The
Amateur Primary allocations stop at 146 MHz and then there's nothing until 24
GHz.
73 Trevor M5AKA
--- On Sun, 6/7/08, John B. Stephensen <kd6ozh(AT)comcast.net> wrote:
> UV is a problem as hams in much of the U.S. are limited to 1
> kW EIRP on 70
> cm. The military is the primary user of the band. Recently,
> some repeaters
> near PAVE PAWS sites have had to reduce power to 5 W due to
> interference
> with the return signal from the 4 GW EIRP RADAR.
>
> 73,
>
> John
> KD6OZH
>
> ----- Original Message -----
> From: "i8cvs" <domenico.i8cvs(AT)tin.it>
> To: "AMSAT-BB" <amsat-bb(AT)amsat.org>;
> <kl7uw(AT)acsalaska.net>; "Joe"
> <nss(AT)mwt.net>; "G0MRF David Bowman"
> <g0mrf(AT)aol.com>
> Sent: Sunday, July 06, 2008 08:53 UTC
> Subject: [amsat-bb] Fw: Re: NASA's American Student
> Moon Orbiter...
>
>
> > ----- Original Message -----
> > From: G0MRF(AT)aol.com
> > To: nss(AT)mwt.net
> > Cc: domenico.i8cvs(AT)tin.it ; kl7uw(AT)acsalaska.net
> > Sent: Saturday, July 05, 2008 1:21 AM
> > Subject: Re: [amsat-bb] Re: NASA's American
> Student Moon Orbiter...
> >
> >
> > Hi Joe.
> >
> > Looking at 70cm up and 2m down, Dom has shown the 2m
> path can be achieved
> > with a 13dB gain antenna on the ground and 10 Watts on
> the satellite.
> > That's a very small bandwidth transponder
> >
> > For the uplink, it's not quite as easy.
> > I've just run a link budget calculator and it
> looks like you need about
> > 80 Watts and 20dB of antenna gain on 70cm. That
> produces around 5000 Watts
> > ERP (allowing for losses)
> >
> > As Dom pointed out, you dont just need a signal thats
> just above the
> > noise level at the satellite. Up there you need enough
> of a signal at the
> > receiver so that the satellites transmitter can
> generate a decent amount
> > of power on 2m.
> >
> > The 5kW ERP generates a signal around 16dB above
> noise at the satellite.
> > With luck, that will be sufficient to produce enough
> power on the 2m
> > downlink.
> >
> > Of course there are a lot of variables and
> 'detail' . but 5kW ERP up and
> > a 13dB gain antenna on the downlink are 'In the
> ballpark' for a minimal
> > working U/V system.
> >
> > Thanks
> >
> > David
> >
> > Hi David, G0MRF
> >
> > Looking at the specifications of AO40 I found that at
> 435 MHz the
> > equivalent noise temperature of the RX is
> > TN (k) = 500 kelvin
> > The Prx (23) i.e. the power needed by the receiver to
> develope a signal
> > of 23 dB over the noise is -145 dBW
> > The 435 MHz satellite antenna gain is 14 dBi
> > It is not specified the transponder output power with
> a S/N=23 dB because
> > it depends on what transponder is intended to be used
> for the downlink.
> > Probably -145 dBW at the RX input is the power needed
> to get a S/N = 23
> > dB at the IF input before to be switched by the matrix
> to different
> > transponders.
> >
> > By the way the attenuation earth to moon at 435 MHz
> for 400.000 km is 197
> > dB and going back to calculations
> > we get :
> >
> > TX power at 435 MHz on earth........................
> + 20 dBW (100 W)
> > 435 MHz antenna gain on earth .......................
> + 18 dB
> >
>
> > -----------------
> > EIRP of the ground
> station................................ + 38 dBW ( 6.3
> > kW)
> >
> > Attenuation 435 MHz for 400.000 km ..............
> -197 dB
> >
>
> > ------------------
> > Power received on a 435 MHz isotropic........... -
> 159 dBW
> > antenna at a distance of 400.000 km
> > Satellite antenna gain
> ......................................... + 14 dBi
> >
>
> > ------------------
> > Received power at RX input for S/N=23 dB.... - 145
> dBW
> >
> > It seems that both calculations match and 5 kW to 6
> kW EIRP up on 70 cm
> > and 13 dBi antenna gain on the 2 meters downlink are a
> minimum necessary
> > provided that the satellite antennas orbiting around
> the moon are
> > constantly directed toward the earth but this is a
> very difficult task.
> >
> > 73" de
> >
> > i8CVS Domenico
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Sent via AMSAT-BB(AT)amsat.org. 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(AT)amsat.org. 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
__________________________________________________________
Not happy with your email address?.
Get the one you really want - millions of new email addresses available now at
Yahoo! http://uk.docs.yahoo.com/ymail/new.html
------------------------------
Message: 5
Date: Sun, 06 Jul 2008 23:14:43 -0400
From: Luc Leblanc <lucleblanc6(AT)videotron.ca>
Subject: [amsat-bb] Special call sign VC3C
To: amsat-bb(AT)AMSAT.Org
Cc: eu-amsat(AT)yahoogroups.com
Message-ID: <487151E3.24447.FB01C0(AT)lucleblanc6.videotron.ca>
Content-Type: text/plain; charset=ISO-8859-1
To commemorate the 400th anniversary of Quebec city foundation by Samuel de
Champlain on the third of July 1608 marking the continuous
french presence in North America a special call sign has been issued "VC3C"
I will activate this very special call sign on all available amateur satellite
from July 7 to July 13. On July 13 the mobile communication
unit "On the Champlain Road" who travel the same route along the St-Lawrence
as Champlain does in 1608 400 years ago will be in Sorel-Tracy
where Champlain enters in the Richelieu river (see below the ****) and was the
first to european to discover the Lake Champlain. The
station will be located at the Governors House in Sorel
http://grandquebec.com/monteregie/maison-des-gouverneurs/ (The tower in the
back
ground is located on the roof of the Sorel-Tracy ARC HQ.)
People of French descent across North America can trace their history back to
Qu?bec City, recognized today as the cradle of French
civilization in the New World.
At one point, Qu?bec City was at the center of New France, an empire that
covered all of Eastern Canada and almost half of the current US
territory. French North America extended from the Gulf of St Lawrence to the
Great Lakes and from Hudson Bay to the Gulf of Mexico.
Although this empire was not to last, Qu?bec City, as the capital of Lower
Canada and later, of Qu?bec, has continued to grow and thrive.
A Timeline for Champlain
Around 1570: Champlain is born in Brouage to a seafaring family. He studies
navigation and cartography.
1595-1598: He serves in the royal army of Brittany
1599-1601: He travels to Mexico and reports to King Henri IV
1603: First voyage to Canada. He explores the St. Lawrence
River as far as the site of today?s Montreal. He publishes his
first book, Des Sauvages.
1604-1607: First French foothold in Canada on the Acadian shore. He
explores the coast as far as the site of today?s Boston.
1606: He meets with Marc Lescarbot, who returns to the Acadian
colony, and writes Histoire de la Nouvelle-France (published
in 1609).
1608: Champlain founds Qu?bec.
1609: He discovers the Richelieu River and Lake Champlain. He
allies with the Hurons against the Iroquois.******************
1610-1613: He sends ?tienne Br?l? to the Montagnais.
1613: He explores the Ottawa River (the Outaouais). He
publishes an account of his Voyages since 1604.
1614-1616: He discovers Lake Huron and Huronia.
1619: He publishes an account of his Voyages since 1613. As of
1620, he remains almost continuously in Qu?bec.
1627: The Compagnie des Cent-Associ?s administers Canada.
July 19,1629: The British take Qu?bec.
March 29,1632: The Treaty of Saint-Germain-en-Laye restores Qu?bec and Canada
to France.
1632: Champlain publishes a chronicle of all his Voyages since
1604.
December 25,1635: Champlain dies in Qu?bec.
http://monquebec2008.sympatico.msn.ca/MonQuebec2008/?lang=en-ca
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 6
Date: Mon, 7 Jul 2008 07:57:24 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
Subject: [amsat-bb] SEEDS-II at 1 degree elevation
To: <amsat-bb(AT)amsat.org>
Message-ID: <1274.212.61.85.173.1215410244.squirrel(AT)webmail.iae.nl>
Content-Type: text/plain; charset=iso-8859-1
Keeps impressing me somehow ...
Yesterday I monitored a pass of SEEDS-II (max 89 degree elevation)
Most remarkable to me is that these little satellites can be heared
at very low elevation with very good S/N figures.
Receiving their CW telemetry can be done down to 0.5 degree elevation.
Just using an old 2x8 elements antenna without pre-amp.
For what it's worth: this is how the S/N spectrum looks like
when I hold a microphone on front of the speaker:
http://www.pa3guo.com/seeds_06jul08_elevation_01_degree_cw_437.485.gif
Henk, PA3GUO
http://www.pa3guo.com
------------------------------
Message: 7
Date: Mon, 7 Jul 2008 13:20:48 +0200
From: "i8cvs" <domenico.i8cvs(AT)tin.it>
Subject: [amsat-bb] Re: Fw: Re: NASA's American Student Moon
Orbiter...
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>, "D. Mynatt" <dave(AT)mynatt.biz>
Message-ID: <001601c8e023$862359c0$0201a8c0(AT)tin.it>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "D. Mynatt" <dave(AT)mynatt.biz>
To: "i8cvs" <domenico.i8cvs(AT)tin.it>
Sent: Monday, July 07, 2008 3:48 AM
Subject: Re: [amsat-bb] Re: Fw: Re: NASA's American Student Moon Orbiter...
> Where can one even find a 33ft dish?
>
> Dave/KA0SWT/Pueblo, CO
Hi Dave, KA0SWT
For big EME dishes in USA look here
http://www.signalone.com/kb2ah/
and then here
http://www.nitehawk.com/rasmit/gallery.html
73" de
i8CVS Domenico
------------------------------
Message: 8
Date: Mon, 7 Jul 2008 16:51:56 +0200
From: <P.Pitacco(AT)fmc.units.it>
Subject: [amsat-bb] Re: NASA's American Student Moon Orbiter...
To: <hartzell(AT)gmail.com>, <amsat-bb(AT)amsat.org>
Message-ID:
<15D9DE0CE7475B4CBAC48A8C837DDBE6060CF8(AT)med2k1s.ds.units.it>
Content-Type: text/plain; charset="Windows-1252"
Around this discussion, take a look on
http://www.die.uniroma1.it/esmo-urm/
ESA is working on the same direction, and some works
are now done here, with some italian University.
AMSAT Italy has posted a proposal in a meeting held
in Rome, march 2007.
73, Paolo
IW3QBN
------------------------------
Message: 9
Date: Mon, 7 Jul 2008 08:47:13 -0700 (PDT)
From: MM <ka1rrw(AT)yahoo.com>
Subject: [amsat-bb] ISS Status, Future Project Proposals
To: amsat-bb(AT)AMSAT.Org
Message-ID: <203326.79798.qm(AT)web56401.mail.re3.yahoo.com>
Content-Type: text/plain; charset=utf-8
ISS Amateur Radio Status: July 7, 2008
By Miles Mann WF1F,
MAREX-MG News www.marexmg.org
Manned Amateur Radio Experiment
Mir SSTV images collection.
ARISS Moscow ISS Status meetings
Slow Scan TV from Space Station Mir, 10 years later.
********
Mir SSTV images collection:
Hello all, it has been a while:
I have posted a new web page link with approximately 300 SSTV images from the
Marex SSTV project on Mir from 1998-2000.
I am sure there are more images out there, so if you find any that are not
currently posted, please forward them to Marex and read the section below.
ARISS Moscow ISS Status meetings:
The annual ARISS / ISS meeting for 2007 was canceled due to schedule
conflicts.
The next meeting will be in Moscow July 16 ? 20, 2008
At these meetings we discuss may topics including the Status of current
Amateur Radio hardware on the International Space Station. And we discuss
proposal for possible Future Amateur Radio projects for ISS.
I have posted a few of the MarexMG proposals on the MarexMG web page.
These are Just proposals at this time. However, with your support, some of
these proposals could become reality.
Our goal at Marex?
Keep ISS on the air as much as possible.
Keep the projects very simple for Hams and SWL around the world.
And Keep it easy for the ISS crew to use (KISS).
ISS can be your stepping stone into Space.
Project Proposal List:
Let?s get Digital into Space. I believe the ISS crew would have a blast using
the Digital Repeater network. With the Aid of a few discrete frequencies, the
ISS crew could use Digital repeaters to link to their home town digital
repeater or make person to person digital link calls.
What do you think?
Look over the rest of the proposal?s and constructive comments welcome.
www.marexmg.org
Slow Scan TV from Space Station Mir, 10 years later.
On December 12, 1998 the crew members of the Russian Space station Mir
activated the Marex SSTV system. Over the next two years the system
broadcasted over 20,000 SSTV images back to earth via Amateur Radio.
Many of the images were quiet spectacular.
To celebrate the 10 year anniversary of the successful imaging project, the
Marx team is planning on upgrading our web page system to accommodate the many
images that were transmitted during the projects 2 year run. In 1998 we just
did not have the resources in place to handle the hundreds of images coming in
every day. As a result only a small select on of the images were ever posted
for public enjoyment.
Here is where we need your help.
Out of the 20,000 images sent to earth, we believe that only approximately a
1,000 images were saved by the general amateur radio public around the world.
We would like you to search your disk drives for those images that you
received during the project which ran from December 1998 until 2000. Please
send the images to Marex so that we can add them to our new web page.
We are interested in high quality and unique images.
In December 98 and January 99, there were many times when the Mir crews would
put on Slid shows for the public and demonstrate the Musical skills and show
us scenes of the holidays.
One good string of images came from the Mir shutdown in August 1999. The Mir
crew left the SSTV system running showing inside shots while the crew packet
up the Space Station just before leaving the station.
So start searching your disk dive and see if you can find some good images.
When you find them please send the Marex and will add them to our web page.
Here are a few scattered pages with some of the Mir SSTV images
http://www.marexmg.org/imagessstv/SpaceCamImages1.htm
Images and links for SSTV images from Mir 1998-2001
http://www.marexmg.org/moscow98/index.htm
If you have any more that are different or have better quality, please forward
those images to Marex.
Mail your images to Marex at:
Wf1f(AT)yahoo.com
In order to properly catalog the images we request that you use the following
image naming format. After you receive you images, please rename the images
using the following format, All Lower case letters.
Year 99, Month 07, Day 31, (UTC time), Call sign, .jpg
In many cases you many not know the exact date or UTC time. Sometimes you can
derive this information from the time stamp of the original image. Just take
your best guess on the date and time.
Example:
New format:
9907311905wf1f.jpg
If we break this down
Year =99
Month = 07
Day = 31
Time = 1905 UTC
Call sign = wf1f
Image format = jpg
Image Quality
Please do not put any text over lays on the images, Example, do not put web
page or advertisements in the image.
We would also like to know the following Optional information in your email.
Name or Call sign
Country / State
Receiver
Software decoding tool
Elevation or range of ISS when you decoded the image.
Ps, If you also find any SSTV pictures from the 2 Space Shuttle Missions or
any from ISS in 2006, please forward them to the same address. Thanks
If you are interested in learning more about Slow Scan TV, here are a few
links.
SSTV Decoding Software
http://www.barberdsp.com/
There are many choices in SSTV software, some Free,
others with more features cost a few bucks.
http://www.marexmg.org/fileshtml/sstvlinkpage.html
SSTV on ISS:
The Marex SpaceCam1 is currently on ISS. It was successfully tested in August
2006 using a ?Borrowed? laptop. The laptops computers are in very short
supply on ISS. We are patiently waiting permission to Borrow another laptop.
Marexmg Web page
http://www.marexmg.org
ARISS Web page and other great Space projects
http://www.rac.ca/ariss/
73 Miles WF1F MAREX-MG
Until we meet again
DOSVIDANIYA Miles WF1F
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 337
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