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CX2SA > SATDIG 26.04.10 18:27l 915 Lines 29971 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: AO 27 ? (Clint Bradford)
2. Re: AO 27 ? (Rick - WA4NVM)
3. Re: AO 27 ? (Clint Bradford)
4. Fwd: Next HV Satcom net (Stuart Balanger)
5. Re: [Moon-net] Arecibo on Handy (i8cvs)
6. AO-51 now in dual repeaters, V/U and L/U (Andrew Glasbrenner)
7. WD9EWK from DM52/DM53, Friday (30 April)
(Patrick STODDARD (WD9EWK/VA7EWK))
8. WD9EWK @ Sierra Vista AZ hamfest, Saturday (1 May)
(Patrick STODDARD (WD9EWK/VA7EWK))
9. Re: [Moon-net] Arecibo on Handy (Dave-K7DAA)
10. Nanosatellite Launch Service 6 on PSLV-C15 (Daniel Kekez)
11. Re: [Moon-net] Arecibo on Handy (Bob- W7LRD)
12. Re: Nanosatellite Launch Service 6 on PSLV-C15 (Trevor .)
13. Re: Nanosatellite Launch Service 6 on PSLV-C15 (Trevor .)
14. Fwd: [eu-amsat] HO-68 versus AO-51 (n5uxt@xxxxx.xxxx
15. Re: Fwd: [eu-amsat] HO-68 versus AO-51 (Reid Crowe)
16. for sale-ARR SP144VDG rf switched 2 m preamp (D. Craig Fox)
17. Re: Fwd: [eu-amsat] HO-68 versus AO-51 (Vince Fiscus, KB7ADL)
----------------------------------------------------------------------
Message: 1
Date: Sun, 25 Apr 2010 12:23:05 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO 27 ?
To: amsat-bb@xxxxx.xxx
Message-ID: <6DFAA372-E203-4926-9891-6D955F6E88D6@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On the 440 side during a 45-degree pass, there can be almost a 10kHZ
deviation - well, plus or minus about 5kHZ from center - that must be
accommodated for the Doppler effect.
So either of those two (actually BOTH) could/should be programmed on your
receive side, along with a few more to accommodate Doppler.
Clint, K6LCS
http://www.work-sat.com
------------------------------
Message: 2
Date: Sun, 25 Apr 2010 15:05:07 -0500
From: "Rick - WA4NVM" <wa4nvm@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO 27 ?
To: "John Geiger" <aa5jg@xxxxx.xxx>, <k7trkradio@xxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>, "Greg D." <ko6th_greg@xxxxxxx.xxx>
Message-ID: <D0FBD92C063A48CE88353D9B3E60A83A@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi All,
I read all the replies and have to agree with John, AA5AG. Unless the pass
is real low to
the east or west, I always get AOS at 436.804, then track down in frequency.
My LOS
is around 436.785, if your fixed in 5kc increments (no vfo), program or move
from 436.805,
436.800, 436.795, 436.790 and 436.785. The 436.795 frequency is the center
frequency
before doppler comes into play.
Hope this helps,
Rick WA4NVM
I start at 436.805 which seems about right for the doppler shift at the
beginning of the pass.
73s John AA5JG
--- On Sun, 4/25/10, Greg D. <ko6th_greg@xxxxxxx.xxx> wrote:
> From: Greg D. <ko6th_greg@xxxxxxx.xxx>
> Subject: [amsat-bb] Re: AO 27 ?
> To: k7trkradio@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
> Date: Sunday, April 25, 2010, 12:52 PM
>
> I find that 436.795 works best for me. But it's an FM
> downlink (so you have the capture effect on your side),
> you've got Doppler to deal with, and every rig is different
> anyway. So I'd advise that you just play with it a bit
> and see what's best for you. Either one is a
> reasonable starting point.
>
> Greg KO6TH
>
>
> > From: k7trkradio@xxxxxxx.xxx
> > To: amsat-bb@xxxxx.xxx
> > Date: Sun, 25 Apr 2010 10:06:22 -0700
> > Subject: [amsat-bb] AO 27 ?
> >
> > AMSAT shows downlink at 436.795
>
> >
> >
> >
> > AO27 site shows downlink at 436.797
> >
> >
> >
> > What is the correct frequency?
> >
> > _______________________________________________
> > 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
>
>
>
>
> _________________________________________________________________
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>
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> _______________________________________________
> 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: 3
Date: Sun, 25 Apr 2010 13:48:58 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: AO 27 ?
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <621CAF08-E4D0-4B3A-835A-891672C4E55E@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
Gould quickly contacted me to re-calibrated my slide rule - I was 1/2
correct earlier - it is almost +/-10kHZ on the 440 side of a 45 degree pass
of an FM bird.
Here's the actual equation to calculate Doppler shift ...
http://tinyurl.com/dopplershift
Clint, K6LCS
------------------------------
Message: 4
Date: Sun, 25 Apr 2010 17:47:05 -0400
From: Stuart Balanger <wa2bss@xxxxx.xxx>
Subject: [amsat-bb] Fwd: Next HV Satcom net
To: amsat-bb@xxxxx.xxx
Message-ID:
<v2i632b880b1004251447o2d41e2bej550b2bda467cb9d4@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
---------- Forwarded message ----------
From: Stuart Balanger <wa2bss@xxxxx.xxx>
Date: Sun, Apr 25, 2010 at 2:15 PM
Subject: Next HV Satcom net
To: amsar-bb@xxxxx.xxx
Hi all,
The next "HV Satcom" group net is Thursday april 29, 8PM on the
146.97 Mt. Beacon Repeter (or 2400 UTC), & ther is an Echolink node of
N2EYH-L
node!
More info: www.hvsatcom.org 73,.Stu
------------------------------
Message: 5
Date: Sun, 25 Apr 2010 23:54:40 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: [Moon-net] Arecibo on Handy
To: "David Olean" <k1whs@xxxxxxxxx.xxx>,
<david.barber@xxxxxxxxxxxxx.xx.xx>, "'Moon-Net'"
<moon-net@xxxxxxxxx.xxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <003d01cae4c1$e88c2480$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "David Olean" <k1whs@xxxxxxxxx.xxx>
To: <david.barber@xxxxxxxxxxxxx.xx.xx>; "'Moon-Net'"
<moon-net@xxxxxxxxx.xxxxxx.xxx>; <amsat-bb@xxxxx.xxx>
Sent: Sunday, April 18, 2010 11:06 PM
Subject: [amsat-bb] Re: [Moon-net] Arecibo on Handy
> I tried the same thing with one of my FO432 11 el beams handheld with a
> bare FT817 this afternoon. This was right after getting home from the VHF
> Conference in Connecticut. I could hear KP4AO very well on JT65 right out
> of the speaker. My XYL heard the tones 25 meters away while she was raking
> leaves in the yard. I handheld the antenna . While at the conference we
> experimented with small yagis and a preamp. KP4AO was pretty good on a 7
> el wood boom yagi, weak on a 3 element yagi, and very weak but audible on
> just a dipole. The kicker was when AF1T produced his di-pickle, which was
> a feedpoint with a small pickle on each side that approximated a full half
> wave on 432. KP4AO was barely detectable on the pickle antenna. Dale, AF1T
> says he wants to get more gain by building a cu-pickle quad! This may be
> the first reception of eme with VBD (Vinegar Based Dipole) technology!
> We actually erected a small eme station for KP4AO that ran off
> emergency power and was situated in the back of the rear parking lot at
> the hotel.
> It attracted much interest and we had great copy on SSB ad CW with the
> KP4AO running an amplifier. They were sort of weak on SSB when running
> just 20 watts. We did manage to work them with the VHF club call, W1RJA.
> The wx was poor, cold with rain.
>
> 73
> Dave K1WHS
>
Hi Dave, K1WHS
Tank you for your Arecibo EME report.Actually I am looking at the photograph
of you in your shack in Fig-1 published in to THE MOONBOUNCE GROUP
PART 1 by the EIMAC document AS49-10 "Dave Olean, K1WHS and his
operating position. The antenna for 144 MHz moon-bounce work is a
160-element collinear on a polar-mount.The final amplifier uses a pair of
4CX250B tubes."
Also I am looking at The EIMAC publication AS49-11 IDEAS FOR EME
ANTENNA ELEVATION DRIVERS Fig.4 " K1WHS found this Quasi-Polar
mount in a surplus store.With a little ingenuity an elevation drive system
can be developed around what can be found in junkyards and surplus stores"
Sorry I got not the chance to contact you off the moon in 144 MHz early
between 1977 to 1980 because I was involved in 432 MHz EME but you can
see the photograph of my EME array 16 x 21 element yagi depicted into the
EIMAC document AS49-20 THE MOONBOUNCE GROUP PART-3
The actual situation in 432 MHz here is very different because early in
1977-1980 the 70 cm band was very clean without the RF pollution even 20 km
away from the city of Naples where I leave.
In 1976 I was able to receive the EME SSB and CW signals transmitted by the
40 meters dish of Menlo Park California WA6LET only using a 4 x 20 element
yagi and a preamplifier just with a BFR-90 bipolar transistor.
Actually I was not able to receive Arecibo KP4AO because in 432.045 MHz
there is a digital spurious digital signal here with more than 10 dB over
the noise in my receiver. What difference here from the early EME pioneering
days !
I am very happy to know that you are still into the EME trench with great
success.
Actually here near the city of Naples only the satellite operation is
possible and EME is marginally possible going from 1296 MHz and up.
By the way Dave your letter was a very nice opportunity for me to remember
the old EME pioneering days !
Best 73" de
i8CVS Domenico
------------------------------
Message: 6
Date: Sun, 25 Apr 2010 18:57:42 -0400
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] AO-51 now in dual repeaters, V/U and L/U
To: Amsat-BB <amsat-bb@xxxxx.xxx>, AO51 Modes <ao51-modes@xxxxx.xxx>
Message-ID: <4BD4C8E6.7060500@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I just completed the weekly mode change for AO-51 just after 2200Z. We
are now running dual repeaters on 145.920/435.300 and 1268.700/435.150.
The 67Hz PL access is on for the V/U pair with a 2 minute period. Power
output is 410mw for either repeater.
AO-51 will be reentering eclipses this week or next, and we will need to
frequently interrupt the L/U repeater for telemetry. The modulation will
be left low on the repeater to make the switch from data to voice
easier. I'll try to do this primarily on the morning passes over the
East Coast, but it could happen on any US pass. It's important for us to
keep close tabs on the power situation during this period.
73, Drew KO4MA
AMSAT-NA VP Operations
------------------------------
Message: 7
Date: Sun, 25 Apr 2010 21:34:20 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] WD9EWK from DM52/DM53, Friday (30 April)
To: amsat-bb@xxxxx.xxx
Message-ID: <898181.58428.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi!
On my way (sort of) to the hamfest in Sierra Vista AZ on Saturday (1
May), I will make a detour to the DM52/DM53 grid boundary in Graham
County AZ northwest of Safford on Friday (30 April) afternoon.? I
stopped in this area twice around this time last year, and I don't
think anyone else has been on from DM53 since then.? I am planning
to stop there for the AO-27 passes around 2003 and 2144 UTC Friday,
and - depending on the view of the eastern sky - I might attempt the
AO-51 pass at 2214 UTC.? The 2214 UTC AO-51 pass has a maximum
elevation of 5 degrees at that location, so I may only have a few
minutes during that pass if I can hear the satellite at all.?
After these passes, I will move south and stop somewhere in DM52 for
the AO-51 pass at 2348 UTC.? Depending on how things go on Friday, I
could either return to the DM51/DM52 boundary where I stopped a few
weeks ago, or possibly head to the Arizona/New Mexico state line (grid
DM52lf) where I worked from last October.? Since I will be up and on
the air from the hamfest in Sierra Vista early Saturday morning, I do
not plan on working anything else after these passes on Friday.?
As always, if you work me on Friday, there's no need to send me a
QSL card.? Just e-mail me the QSO details, and - if you're in the
log - I will gladly send out a QSL card.?
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 8
Date: Sun, 25 Apr 2010 21:51:56 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] WD9EWK @ Sierra Vista AZ hamfest, Saturday (1
May)
To: amsat-bb@xxxxx.xxx
Message-ID: <67389.4432.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
On Saturday, 1 May 2010, I will have an AMSAT table at the Cochise
Amateur Radio Association's Larry Warren Hamfest in Sierra Vista AZ.
This is a half-day event, and one I have attended for the past two
years. During the hamfest, WD9EWK should be on the air for
demonstrations on the following passes:
1340-1353 UTC on AO-51
1406-1426 UTC on FO-29
1642-1655 UTC on VO-52
1807-1825 UTC on HO-68
For AO-51, I will be on the 145.920/435.300 MHz repeater. For FO-29
and VO-52, I will try to start out calling CQ in SSB approximately
10 kHz above the center frequency of these transponders. HO-68 will
be in FM until its scheduled shutoff at 1825 UTC, which will be near
the predicted LOS time at the hamfest site. If you are able to work
these passes and hear me, please feel free to give me a call. The
hamfest site is in grid DM41vn.
If you work WD9EWK on Saturday, there's no need to send me a QSL card
to get my card. Just e-mail me the QSO details, and - if you're in
the log - I will gladly send out a QSL card.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 9
Date: Sun, 25 Apr 2010 23:02:54 -0700
From: Dave-K7DAA <dave@xxxxx.xxx>
Subject: [amsat-bb] Re: [Moon-net] Arecibo on Handy
To: amsat <amsat-bb@xxxxx.xxx>
Message-ID: <DB839B98-FE4F-4C58-8F63-DFA305CA870C@xxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Dave:
Forget this boring moonbounce stuff--I want to know more about this
other strange phenomenon you've reported, where you get to do fun ham
stuff while the XYL does the yard work! I don't think I've ever heard
of such a thing before!
Outstanding accomplishment, OM!!
;-)
73,
Dave - K7DAA
(enjoying all of the great info I read on amsat-bb even though I'm not
posting much stuff)
On Apr 18, 2010, at 2:06 PM, David Olean wrote:
> I tried the same thing with one of my FO432 11 el beams handheld
> with a bare
> FT817 this afternoon. This was right after getting home from the VHF
> Conference in Connecticut. I could hear KP4AO very well on JT65
> right out of
> the speaker. My XYL heard the tones 25 meters away while she was
> raking
> leaves in the yard. I handheld the antenna...
(SNIP)
> 73
> Dave K1WHS
------------------------------
Message: 10
Date: Mon, 26 Apr 2010 06:36:05 +0000
From: Daniel Kekez <va3kkz@xxxxx.xxx>
Subject: [amsat-bb] Nanosatellite Launch Service 6 on PSLV-C15
To: amsat-bb@xxxxx.xxx
Message-ID: <4BD53455.8060607@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi All,
The Space Flight Laboratory (SFL) at the University of Toronto Institute
for Aerospace Studies (UTIAS) would like to announce the delivery of
Nanosatellite Launch Service 6 (NLS-6) cluster payload to Satish Dhawan
Space Centre in Sriharikota (SDSC-SHAR), Andhra Pradesh, India, for
launch on board PSLV-C15. PSLV-C15 will be launching from the First
Launch Pad at SDSC-SHAR into 637 km sun-synchronous orbit with 10:30
Local-Time of Descending Node. NLS-6 shares this launch with Cartosat-2B
primary, Alsat-2A co-primary, and STUDSAT auxiliary payload.
NLS-6 is the 6th launch by SFL. The NLS-6 cluster comprises of two
nanosatellite: AISSat-1 and TIsat-1.
NLS-6 launch updates are being posted to
http://www.utias-sfl.net/NLS-6/
About AISSat-1
------------------------------
AISSat-1 is built by SFL for the Norwegian Defence Research
Establishment (FFI). It is intended to demonstrate a new maritime AIS
receiver that has been developed by FFI. The AIS receiver will be used
to monitor ship traffic in Norwegian waters. The design of AISSat-1 is
based on SFL Generic Nanosatellite Bus (GNB).
The spacecraft has a main structure measuring 20 cm by 20 cm by 20 cm
and it is stabilized in three-axes using reaction wheels. It has a fixed
46 cm long VHF payload monopole antenna for the AIS receiver and four
UHF uplink monopole antennas for the command receiver. The downlink in
the S-Band. AISSat-1 has an overall dimension of 80 cm by 45 cm by 37 cm
and an overall mass of 6.5 kg. AISSat-1 will be secured to the launch
vehicle using the XPOD GNB separation system.
AISSat-1 is not an amateur satellite and, as such, has coordinated
appropriate frequencies. Its ground segment is located at Svalbard and
its control centre is at FFI, near Oslo, Norway.
More information on the spacecraft can be found at
http://www.utias-sfl.net/nanosatellites/AISSat-1/
and
http://www.spacecentre.no/?module=Articles;action=Article.publicShow;ID=51389
About TIsat-1
------------------------------
TIsat-1 is a 1 kg CubeSat of 10 cm by 10 cm by 10 cm and is built by
students and staff at University of Applied Sciences of Southern
Switzerland (SUPSI). The primary mission objective is to involve
students in systems engineering, development and test with a very
challenging project and to provide students and staff at SUPSI with
space mission knowledge. TIsat-1 will monitor the durability of material
probes exposed to space environment, will test a micro electromechanical
device and will validate the redundant, fault tolerant hardware and
firmware design of the bus.
Two monopole antennas (VHF and UHF) will be deployed after separation.
Housekeeping and payload data will be communicated to the ground as
orbital data profiles. TIsat-1 will be secured to the launch vehicle
using the XPOD Single separation system.
TIsat-1 communicates over amateur radio frequencies, as coordinated
through the IARU, and they have been working with radio amateurs in
Switzerland during the spacecraft's development. They have a Morse Code
and data beacons. More information can be found at
http://www.spacelab.dti.supsi.ch/tiSat1.html
Future Launches by SFL
------------------------------
SFL has signed its 7th launch contract with ANTRIX for NLS-7 in late
2010/early 2011. NLS-7 will launch the twin-satellite CanX-4 and CanX-5
formation flying mission.
SFL will be signing its 8th launch contract for NLS-8 momentarily, for
the launch of two astronomy nanosatellites: BRITE-Austria (CanX-3A) and
UniBRITE (CanX-3B). NLS-8 will also launch one partner spacecraft.
In addition, SFL is under discussion for NLS-9, NLS-10, and NLS-11
launches in 2011/2012 time frame, and would like to extend an invitation
to spacecraft developers world-wide to join our launches.
For further information, please contact:
Freddy M. Pranajaya
Manager, Advanced Systems Group
UTIAS Space Flight Laboratory
4925 Dufferin Street, Toronto, Ontario, CANADA M3H 5T6
+1-416-667-7890 Voice
+1-416-667-7799 Fax
freddyp@xxxxxxxxx.xxx
http://www.utias-sfl.net/
73,
-Daniel, VA3KKZ
------------------------------
Message: 11
Date: Mon, 26 Apr 2010 06:43:46 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] Re: [Moon-net] Arecibo on Handy
To: Dave-K7DAA <dave@xxxxx.xxx>
Cc: amsat <amsat-bb@xxxxx.xxx>
Message-ID:
<1184260978.10093841272264226642.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
I also noted that "remarkable" statement, "while the xyl does yard work".?
This secret must be divulged.
73 Bob W7LRD
----- Original Message -----
From: "Dave-K7DAA" <dave@xxxxx.xxx>
To: "amsat" <amsat-bb@xxxxx.xxx>
Sent: Sunday, April 25, 2010 11:02:54 PM GMT -08:00 US/Canada Pacific
Subject: [amsat-bb] Re: [Moon-net] Arecibo on Handy
Dave:
Forget this boring moonbounce stuff--I want to know more about this ?
other strange phenomenon you've reported, where you get to do fun ham ?
stuff while the XYL does the yard work! ?I don't think I've ever heard ?
of such a thing before!
Outstanding accomplishment, OM!!
;-)
73,
Dave - K7DAA
(enjoying all of the great info I read on amsat-bb even though I'm not ?
posting much stuff)
On Apr 18, 2010, at 2:06 PM, David Olean wrote:
> I tried the same thing with one of my FO432 11 el beams handheld ?
> with a bare
> FT817 this afternoon. This was right after getting home from the VHF
> Conference in Connecticut. I could hear KP4AO very well on JT65 ?
> right out of
> the speaker. My XYL heard the tones 25 meters away while she was ?
> raking
> leaves in the yard. I handheld the antenna...
(SNIP)
> 73
> Dave K1WHS
_______________________________________________
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: 12
Date: Mon, 26 Apr 2010 08:06:30 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Re: Nanosatellite Launch Service 6 on PSLV-C15
To: amsat-bb@xxxxx.xxx
Message-ID: <856067.12869.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
A presentation given by Freddy Pranajaya on Nanosatellites to the 2009
AMSAT-UK Colloquium can be seen on the BATC website.
Go to http://www.batc.tv/
Click on the 'Film Archive' icon at the top-left.
Select 2009 AMSAT Nanosatellites from the drop-down list
Click on the > icon to start the player and click on the icon to the left of
the volume control to display the picture full screen.
There is a link just under the player to save the video to your computer.
This years AMSAT-UK Colloquium will be held on Sat and Sun Jul 31 - Aug 1 in
Guildford, details at
http://www.uk.amsat.org/colloquium
73 Trevor M5AKA
------------------------------
Message: 13
Date: Mon, 26 Apr 2010 08:17:51 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Re: Nanosatellite Launch Service 6 on PSLV-C15
To: amsat-bb@xxxxx.xxx
Message-ID: <280710.19146.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
According to Gunters Space Page STUDSAT, 437.505MHz, is also slated for the
same May 5 launch, see
New Indian Amateur Radio Satellite
http://www.southgatearc.org/news/january2010/studsat.htm
73 Trevor M5AKA
--- On Mon, 26/4/10, Trevor . <m5aka@xxxxx.xx.xx> wrote:
> A presentation given by Freddy
> Pranajaya on Nanosatellites to the 2009 AMSAT-UK Colloquium
> can be seen on the BATC website.
>
> Go to http://www.batc.tv/
> Click on the 'Film Archive' icon at the top-left.
> Select 2009 AMSAT Nanosatellites from the drop-down list
> Click on the > icon to start the player and click on the
> icon to the left of the volume control to display the
> picture full screen.
> There is a link just under the player to save the video to
> your computer.
>
> This years AMSAT-UK Colloquium will be held on Sat and Sun
> Jul 31 - Aug 1 in Guildford, details at
>
> http://www.uk.amsat.org/colloquium
>
> 73 Trevor M5AKA
------------------------------
Message: 14
Date: Mon, 26 Apr 2010 11:14:55 -0400
From: n5uxt@xxxxx.xxx
Subject: [amsat-bb] Fwd: [eu-amsat] HO-68 versus AO-51
To: amsat-bb@xxxxx.xxx
Message-ID: <8CCB36A5CA47C43-DFC-1303@xxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="utf-8"
Found this interesting from another mailing list.
-----Original Message-----
From: John Hackett <archie.hackett@xxxxxxx.xxx>
To: eu-amsat@xxxxxxxxxxx.xxx
Sent: Sun, Apr 25, 2010 3:50 pm
Subject: [eu-amsat] HO-68 versus AO-51
HO-68 v AO-51 ??.
HO-68 versus AO-51 - and the university downlink only satellites - (aka the
FM menagerie).
In my honest opinion it's a 'no contest' scenario - with HO-68 winning hands
down.
The two main reasons for me making this claim are ...
1) HO-68's superior orbit.
2) It's multi-mode transponders.
On a typical European pass an HO-68 orbit has a footprint the covers from
Spain in the west to India in the east, Norway in the north to Sudan in the
south ... and all points in between.
Whereas AO-51 is FM only ... HO-68 has transponders for CW, SSB as well as FM.
HO-68 is (IMHO) easier to operate due to it needing less power to get into
the transponders, albeit, to really take advantage of that, a knowledge of
CW is required, which *STILL* shows it's great advantage as weak signal mode.
When all else fails ... switch to CW.
Igor, RW3XL has been operating cross-satellite with HO-68 to VO-52 and HO-68
to
AO-7 ... keying the up down buttons for CW since his keyer is on the blink.
For those wanting to learn, the 200mW beacon sends *SLOW* morse and it's
copyable on a piece of wet string wrapped round a rusty six inch nail.
I've proved this over and over on HO-68 at the beginning of passes when the
elevation is under 20 degrees and a SSB just can't make it - switch to CW -
Q5 copy - (Domenico, I8CVS will endorse that).
I believe that HO-68 is becoming the experienced 'operator's' satellite
while AO-51 will remain the platform for the potential newcomer ... where
they can QRM eachother to their heart's content ... more power Egon ... MORE
POWER !!! ... (with due apologies to the Hollywood film 'Frankenstein').
For me at least, HO-68 has brought the fun back into amateur satellite
operating, particularly on CW ... akin to RS-10, the most popular satellite
ever - (judged by the amount of users) - after the veritable old AO-7.
While everyone is entitled to his or her opinion, operating FM on a
satellite is about as much fun for me as watching paint dry and is, in my
opinion, the worst possible way to introduce a potential newcomer to amateur
satellites. My EU-Amsat co-founder, SV1BSX
(SK) first used the word 'zoo' to describe the AO-51 standard of operating.
There ought to be a sign on the microphone ... PLEASE DON'T FEED THE ANIMALS.
73 John. <la2qaa@xxxxx.xxx>
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Message: 15
Date: Mon, 26 Apr 2010 12:52:16 -0400
From: Reid Crowe <reid.crowe@xxxxx.xxx>
Subject: [amsat-bb] Re: Fwd: [eu-amsat] HO-68 versus AO-51
To: amsat-bb@xxxxx.xxx
Message-ID: <4BD5C4C0.5080205@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
I feel that HO-68 is an excellent newcomer's satellite when it is FM
mode, it is very easy to use. Also, it's footprint made it the most
useful for me while in Thule Greenland, FQ56.
73,
Reid N0RC
On 4/26/2010 11:14 AM, n5uxt@xxxxx.xxx wrote:
> Found this interesting from another mailing list.
>
>
------------------------------
Message: 16
Date: Mon, 26 Apr 2010 10:13:54 -0700
From: "D. Craig Fox" <DFox@xxxxxx.xxx>
Subject: [amsat-bb] for sale-ARR SP144VDG rf switched 2 m preamp
To: "Amsat \(E-mail\)" <amsat-bb@xxxxx.xxx>
Message-ID:
<A8E6E57AFA652D419A823F42AD6ACBDE0359417A@xxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Before I put this on eham and the others, I wanted to offer it up here
first. This is an ARR 2 mtr GaAsFET preamp. It can handle up to 25 wts.
Specs: http://www.advancedreceiver.com/page7.html
It is brand new in sealed bag. I received it as part of another deal, but
already have a 2 mtr preamp. These sell for $120 new. It's yours for
$85.00 shipped. I take paypal or a postal money order. Email me if
interested. Thanks much.
73s
Craig
N6RSX
dcfox@xxxxxx.xxx
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------------------------------
Message: 17
Date: Mon, 26 Apr 2010 12:17:38 -0600
From: "Vince Fiscus, KB7ADL" <vlfiscus@xxx.xxx>
Subject: [amsat-bb] Re: Fwd: [eu-amsat] HO-68 versus AO-51
To: amsat-bb@xxxxx.xxx
Message-ID: <5.2.1.1.2.20100426120157.00befdb8@xxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:52 PM 4/26/2010 -0400, Reid Crowe <reid.crowe@xxxxx.xxx> wrote:
>I feel that HO-68 is an excellent newcomer's satellite when it is FM
>mode, it is very easy to use. Also, it's footprint made it the most
>useful for me while in Thule Greenland, FQ56.
>
>73,
>
>Reid N0RC
I feel that XW-1 is an excellent everybody's satellite when it is Linear
mode, it is very easy to use. Also, it's large footprint makes it possible
for multiple contacts over a wide area at the same time. I say keep it in
linear mode all the time because the Amsat-na board of directors don't want
to build linear satellites. They only want single channel FM satellites
that sound like a circus. Fox will probably sound the same way.
73
Vince KB7ADL
------------------------------
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End of AMSAT-BB Digest, Vol 5, Issue 190
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