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CX2SA > SATDIG 20.11.09 22:05l 821 Lines 24306 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Selling up. (Dave Aitch)
2. Inasat-1 (Trevor .)
3. Re: Inasat-1 (Andrew Glasbrenner)
4. Re: Tonight's Presentation (Andrew Glasbrenner)
5. Re: Inasat-1 (Trevor .)
6. Re: Outdoor box for preamp? (Alan P. Biddle)
7. Re: Running Power to the Polarity Switch (w6zkh@xxxxxxx.xxxx
8. Outdoor Box: Further Considerations (Stan, W1LE)
9. Mexican Baloon... (Rafael Valdez G.)
10. Re: Running Power to the Polarity Switch (David Wing)
11. Re: Running Power to the Polarity Switch (David Wing)
12. Re: Icom 9100 release date? (Jeff Moore)
13. AO-51 Performance (Clint Bradford)
14. Re: Outdoor Box for Preamp (Clint Bradford)
15. SO-67 schedule: 21/22 Nov 2009 (Jan-Albert Koekemoer)
----------------------------------------------------------------------
Message: 1
Date: Fri, 20 Nov 2009 09:52:57 -0000
From: "Dave Aitch" <dave@xxxxx.xxx>
Subject: [amsat-bb] Selling up.
To: <IC910H@xxxxxxxxxxx.xxx>
Cc: 'amsat-bb' <amsat-bb@xxxxx.xxx>
Message-ID: <010501ca69c7$3d81b700$b8852500$@xxx>
Content-Type: text/plain; charset="us-ascii"
ICOM 910HX
ICOM VHF & UHF mast mounted pre-amps
ICOM SM-10 desk microphone.
In addition, four antennas from VHF to 2.4GHz.
An ALTRON wall mounted 2 section mast.
AEA DSP 2232
Offers invited, UK only please.
Further details available direct.
Dave. G1OCN.
Portland. Dorset.
------------------------------
Message: 2
Date: Fri, 20 Nov 2009 10:35:58 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Inasat-1
To: amsat-bb@xxxxx.xxx
Message-ID: <457436.22617.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I see the Malaysian National News Agency recently ran a report saying the
Indonesian Amateur Radio microsat would be launch in 2010.
http://www.bernama.com.my/bernama/v5/newsindex.php?id=453179
The IARU Amateur Satellite Frequency Coordination page quotes the power at 5
watts and a 650 km orbit from an ISRO launch so it should be a strong signal.
http://www.amsat.org.uk/iaru/formal.asp
73 Trevor M5AKA
Daily Amateur Radio Email/RSS News: http://www.southgatearc.org/
Email your news items to: editor at southgatearc.org
----
------------------------------
Message: 3
Date: Fri, 20 Nov 2009 07:07:18 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Inasat-1
To: "Trevor ." <m5aka@xxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4B068676.8050700@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Trevor . wrote:
> I see the Malaysian National News Agency recently ran a report saying the
Indonesian Amateur Radio microsat would be launch in 2010.
> http://www.bernama.com.my/bernama/v5/newsindex.php?id=453179
>
> The IARU Amateur Satellite Frequency Coordination page quotes the power at
5 watts and a 650 km orbit from an ISRO launch so it should be a strong
signal.
> http://www.amsat.org.uk/iaru/formal.asp
>
> 73 Trevor M5AKA
> Daily Amateur Radio Email/RSS News: http://www.southgatearc.org/
> Email your news items to: editor at southgatearc.org
> ----
>
With an 8 degree inclination, it'll be a big hit between about 25
degrees North and South. Much outside of that and you'll never see it,
but it'll be great for them!
73, Drew KO4MA
------------------------------
Message: 4
Date: Fri, 20 Nov 2009 07:24:53 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Tonight's Presentation
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B068A95.2030001@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Clint Bradford wrote:
>
> 1. THANK YOU to whichever AO-51 commander flipped AO-51 to V/U today.
> It was scheduled to go to V/U at 00:00GMT on the 20th - which was
> 4:00PM on the 19th my local time. And the pass I wanted to work was
> just 42 minutes later. And it was ON!
>
You are welcome. With AO-51's pass times creeping earlier and earlier,
we may have to move the mode changes to the morning passes. A 5:45PM
pass is not easy to make when one has to be at work until after 5:00PM
and has a 45 minute commute.
> 2. Don't know exactly how to explain it, but the pass today at 4:42PM
> Pacific Standard Time didn't exhibit the "normal" silencing, then
> faint voices, then stronger voices. It plainly BLASTED into
> discernible conversations, and we we were able to work it much sooner
> than "normal." We were not hidden behind foothills. It was a pretty
> clear shot South to AOS. It really floored me - in a most positive
> way. It was dramatic.
>
>
The power on the repeater downlink is a bit higher than normal at 760
mw. It shouldn't be a dramatic difference from our recent 500-600mw, but
noticeable to a observant operator. The spin rate is also slowing
dramatically, up to ~13 min per rev, so any fades should be nice and
slow, although long.
73, Drew KO4MA
AMSAT VP Operations
------------------------------
Message: 5
Date: Fri, 20 Nov 2009 12:58:02 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Re: Inasat-1
To: amsat-bb@xxxxx.xxx
Message-ID: <915583.64691.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
--- On Fri, 20/11/09, Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx> wrote:
> With an 8 degree inclination, it'll be a big hit between
> about 25 degrees North and South. Much outside of that and
> you'll never see it, but it'll be great for them!
Hi Drew,
Yes I know how fustrating it was in pre-ISS days when the Shuttle was
launched into low inclination orbits - little chance of hearing it up in the
northern countries such as the UK. But it should give Amateurs in many
developing countries a chance to to work the sats using simple equipment and
those countries are the future for Amateur Radio.
It's really encouraging to see that the Indonesian national society ORARI
and AMSAT-ID have been so successful in working with their national space
institute. Lets hope they have a successful launch.
73 Trevor M5AKA
------------------------------
Message: 6
Date: Fri, 20 Nov 2009 07:42:29 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Outdoor box for preamp?
To: "'Michael Tondee'" <mat_62@xxxxxxxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <F86BC22EBBC14AFEB318BED1A99D119A@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
I would suggest that you look around for a store which _specializes_ in
supplying builders. They are usually primarily wholesale, but do retail as
well. We have one up the road a few miles. They have a huge selection of
similar boxes. Some are small enough to mount a relay in, and one is big
enough to remotely mount a transverter. One of those places you seldom
need, but they can solve a lot of odd problems.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Michael Tondee
Sent: 19 November, 2009 20:37
To: Andrew Glasbrenner
Cc: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: Outdoor box for preamp?
Thanks Drew,
I was going by there tomorrow to look around anyway and now I know
better what I'm looking for. The online site says my local store has it
so hopefully I'll be in business soon.
73,
Michael
Andrew Glasbrenner wrote:
> Michael Tondee wrote:
>> Anyone have any suggestions as to what I can use? The unit is about
>> 3 inches tall including the N connectors and about 4 and 5/8
>> inches wide. I need something relatively cheap that will give
>> reliable protection.
>> Thanks,
>> Michael, W4HIJ
>>
>
http://www.lowes.com/lowes/lkn?action=productDetail&productId=10030-223-E987
R-CAR&lpage=none
>
>
> I used one of these for years. A diplexer and the same preamp fit
> inside, and I used bulkhead female to female connectors to connect
> through the side of the box, and a brass bolt for DC.
>
> 73, Drew KO4MA
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.425 / Virus Database: 270.14.73/2514 - Release Date: 11/19/09
19:42:00
>
>
_______________________________________________
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: 7
Date: Fri, 20 Nov 2009 14:59:45 +0000 (UTC)
From: w6zkh@xxxxxxx.xxx
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
To: i8cvs <domenico.i8cvs@xxx.xx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID:
<1109339681.5044691258729185219.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
I just rebuilt my rotor/antenna system here, and I am using the "spare"
2-#18 conductors in the rotor cable for each rotor as my 12 volt line to
each of the yagi's. In the house, I just run to a DPDT switch and use a
WallWart for the 12 volts. David, I think that long black wire goes to +12
volts, not negative, as I noted one wire went to the boom for the return,
suspecting he used the coax as the ground point. I may be wrong.
John
----- Original Message -----
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "David Wing" <david@xxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Thursday, November 19, 2009 11:07:56 PM GMT -08:00 US/Canada Pacific
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
----- Original Message -----
From: "David Wing" <david@xxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Friday, November 20, 2009 4:58 AM
Subject: [amsat-bb] Running Power to the Polarity Switch
> I'm making good progress to get my KLM and Cushcraft antennas mounted on
the
> roof.I think I'll be able to wrap it all up this weekend.
>
>
Hi David,
Happy to hear about your progress.
>
> I do have a question about the polarity switch on the Cushcraft 30 element
> 440 antenna. The switch has one lead that seems to be intended go to
+12vDC
> and the negative lead goes to the boom of the antenna. Do I need connect
> -12vDC to the coax on my feed line in order to complete this circuit?
No .........run please a separate wire for the -12 volt DC
> Seems
> easier to just disconnect the wire from the boom and run it to a dedicated
> -12vDC lead.
A dedicated wire for the -12 volt DC is best
My switch on my KLM is fed with dedicated leads for + and -
> and it seems that would be the easiest way to deal with the Cushcraft.
>
>
Yes, I agree
>
> Am I missing something obvious here? I have wires to spare and can so
it's
> not a big savings to me to run the -12vDC on the coax if that is the
reason
> why this was designed this way.
>
To run power supply to the above relay I have used a coax cable RG-58
The inner conductor for +12 volt DC and the braid for -12 Volt DC
>
> Pointers and suggestions welcome.
>
> 73, David
>
73" de
i8CVS Domenico
_______________________________________________
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: 8
Date: Fri, 20 Nov 2009 10:28:05 -0500
From: "Stan, W1LE" <stanw1le@xxxxxxx.xxx>
Subject: [amsat-bb] Outdoor Box: Further Considerations
To: AMSAT-BB@xxxxx.xxx
Message-ID: <4B06B585.4050108@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello The Net:
additional considerations:
1. Add a small hole in the bottom to allow the box to vent, << 1/8"
drill is OK.
small enough to keep the bugs out, but enough to prevent a vacuum build
up inside or over pressuring.
2. Not all electrical boxes are created equal. The cost effective
(cheap) ones are PVC. Some use
sheet metal type (self tapping) screws to secure the cover.
The better ones use a metal insert that mates a machine screw. The
threads last longer.
Some PVC material is softer than others that are more brittle. Be
careful drilling holes.
3. Typical NEMA ratings are #12 for indoor wet environment, 4X for
weather proof/tight.
Newer IPC ratings are available but you need to research the IPC #'s.
I avoid NEMA 12 enclosues
4. Ebay can be your friend for cost effective larger weatherproof
enclosures.
Search electrical enclosures.
For fiberglass enclosures, BONDO fiberglass filler is easily applied to
fill existing holes.
Tape over the back side, fill with BONDO, paint to seal.
Other enclosures are available in fiberglass ($) aluminum ($$) and
stainless steel ($$$$).
Some with stainless steel hinges and latches to open the cover.
5. design for your environment. Here in New England we have temperature
extremes and lotsa rain/snow/wind.
A milder environment like So. Cal. will allow a simpler box. I avoid
painted steel boxes, even the galvi ones...
6. Another source after Home Depot and Lowes can be
www.TekSupply.com
a agricultural supply house. Electrical supply houses for tradesmen can
also be helpful.
Stan, W1LE FN41sr Cape Cod
------------------------------
Message: 9
Date: Fri, 20 Nov 2009 10:12:16 -0700
From: "Rafael Valdez G." <rafavaldez@xxxxxxx.xxx>
Subject: [amsat-bb] Mexican Baloon...
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BAY111-W16D8E98C2934C436FCA1CDBA10@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi all,
we recently released a baloon with a cross repeater, camera and cross
repeater.
here is the interview of team leaders XE1BRX and XE1CQ in the local TV NEWS.
http://bit.ly/Sarsem3
it is in spanish but might be interesting for some of you..
73's
Rafael Valdez Jr.
XE2RV @ DM41mh
10-10 52716
VUCC Sat #164
http://sat-xe.blogspot.com
EX-XE2PWF
P Before printing, please think about your responsibility and commitment
with the ENVIRONMENT.
Antes de Imprimir, piensa entu responsabilidad y compromiso con el MEDIO
AMBIENTE
_________________________________________________________________
------------------------------
Message: 10
Date: Fri, 20 Nov 2009 09:19:22 -0800
From: "David Wing" <david@xxxxxx.xxx>
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
To: <w6zkh@xxxxxxx.xxx>, "'i8cvs'" <domenico.i8cvs@xxx.xx>
Cc: 'amsat-bb' <amsat-bb@xxxxx.xxx>
Message-ID: <0DD6C259E9AD4B9790B605DF210E6991@xxxxx>
Content-Type: text/plain; charset="us-ascii"
Right, I expect the long wire goes to +12vDC and that the negative is run
over the coax. Is the only reason to run it over coax to save from having
to run another wire? I've got extra wires available and would prefer to run
it direct rather than on the coax...no problem with that do you think?
I'll be off the birds over the weekend while I move the rotator and cables
around.
73,
David
K6CDW
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of w6zkh@xxxxxxx.xxx
Sent: Friday, November 20, 2009 7:00 AM
To: i8cvs
Cc: amsat-bb
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
I just rebuilt my rotor/antenna system here, and I am using the "spare"
2-#18 conductors in the rotor cable for each rotor as my 12 volt line to
each of the yagi's. In the house, I just run to a DPDT switch and use a
WallWart for the 12 volts. David, I think that long black wire goes to +12
volts, not negative, as I noted one wire went to the boom for the return,
suspecting he used the coax as the ground point. I may be wrong.
John
----- Original Message -----
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "David Wing" <david@xxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Thursday, November 19, 2009 11:07:56 PM GMT -08:00 US/Canada Pacific
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
----- Original Message -----
From: "David Wing" <david@xxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Friday, November 20, 2009 4:58 AM
Subject: [amsat-bb] Running Power to the Polarity Switch
> I'm making good progress to get my KLM and Cushcraft antennas mounted on
the
> roof.I think I'll be able to wrap it all up this weekend.
>
>
Hi David,
Happy to hear about your progress.
>
> I do have a question about the polarity switch on the Cushcraft 30 element
> 440 antenna. The switch has one lead that seems to be intended go to
+12vDC
> and the negative lead goes to the boom of the antenna. Do I need connect
> -12vDC to the coax on my feed line in order to complete this circuit?
No .........run please a separate wire for the -12 volt DC
> Seems
> easier to just disconnect the wire from the boom and run it to a dedicated
> -12vDC lead.
A dedicated wire for the -12 volt DC is best
My switch on my KLM is fed with dedicated leads for + and -
> and it seems that would be the easiest way to deal with the Cushcraft.
>
>
Yes, I agree
>
> Am I missing something obvious here? I have wires to spare and can so
it's
> not a big savings to me to run the -12vDC on the coax if that is the
reason
> why this was designed this way.
>
To run power supply to the above relay I have used a coax cable RG-58
The inner conductor for +12 volt DC and the braid for -12 Volt DC
>
> Pointers and suggestions welcome.
>
> 73, David
>
73" de
i8CVS Domenico
_______________________________________________
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: 11
Date: Fri, 20 Nov 2009 09:21:59 -0800
From: "David Wing" <david@xxxxxx.xxx>
Subject: [amsat-bb] Re: Running Power to the Polarity Switch
To: "'i8cvs'" <domenico.i8cvs@xxx.xx>, "'AMSAT-BB'"
<amsat-bb@xxxxx.xxx>
Message-ID: <2CA54EDC09534B72B6D6ED1055A96ACD@xxxxx>
Content-Type: text/plain; charset="us-ascii"
Thanks Domenico...didn't see your reply before I responded to John.
Ciao!
David
-----Original Message-----
From: i8cvs [mailto:domenico.i8cvs@xxx.xxx
Sent: Thursday, November 19, 2009 11:08 PM
To: David Wing; AMSAT-BB
Subject: Re: [amsat-bb] Running Power to the Polarity Switch
----- Original Message -----
From: "David Wing" <david@xxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Friday, November 20, 2009 4:58 AM
Subject: [amsat-bb] Running Power to the Polarity Switch
> I'm making good progress to get my KLM and Cushcraft antennas mounted on
the
> roof.I think I'll be able to wrap it all up this weekend.
>
>
Hi David,
Happy to hear about your progress.
>
> I do have a question about the polarity switch on the Cushcraft 30 element
> 440 antenna. The switch has one lead that seems to be intended go to
+12vDC
> and the negative lead goes to the boom of the antenna. Do I need connect
> -12vDC to the coax on my feed line in order to complete this circuit?
No .........run please a separate wire for the -12 volt DC
> Seems
> easier to just disconnect the wire from the boom and run it to a dedicated
> -12vDC lead.
A dedicated wire for the -12 volt DC is best
My switch on my KLM is fed with dedicated leads for + and -
> and it seems that would be the easiest way to deal with the Cushcraft.
>
>
Yes, I agree
>
> Am I missing something obvious here? I have wires to spare and can so
it's
> not a big savings to me to run the -12vDC on the coax if that is the
reason
> why this was designed this way.
>
To run power supply to the above relay I have used a coax cable RG-58
The inner conductor for +12 volt DC and the braid for -12 Volt DC
>
> Pointers and suggestions welcome.
>
> 73, David
>
73" de
i8CVS Domenico
------------------------------
Message: 12
Date: Fri, 20 Nov 2009 10:19:29 -0800
From: "Jeff Moore" <tnetcenter@xxxxx.xxx>
Subject: [amsat-bb] Re: Icom 9100 release date?
To: <amsat-bb@xxxxx.xxx>
Message-ID: <80BB7AE092994125AC59504B4605D30D@xxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
According to IcomAmerica, the IC-9100 is slated for release at the Dayton
Hamvention next year. When it actually becomes available on the US market
is up to the FCC. It is the replacement for the 746 Pro and 910H, hopefully
it won't cost as much as both of them together.
Jeff Moore KE7ACY
CN94
----- Original Message -----
From: "John Geiger" <aa5jg@xxxxx.xxx>
Subject: [amsat-bb] Icom 9100 release date?
I see that both the Icom 746PRO and the Icom 910H have been discontinued,
and I am assuming that the Icom 9100 is the replacement for both of them.
Any word yet on when it will be made available?
73s John AA5JG
_______________________________________________
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: 13
Date: Fri, 20 Nov 2009 11:44:50 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] AO-51 Performance
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <9098EDCC-70AF-4DBA-8011-C31837CAD186@xxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
CB >> ... It was a dramatic improvement/difference in performance
[00:42 GMT 11/20/09] ...
ANDREW>> .,, The power on the repeater downlink is a bit higher than
normal at 760 mw. It shouldn't be a dramatic difference from our
recent 500-600mw, but noticeable to a observant operator ...
My aging ears cannot take the credit ... it's that darned inefficient,
engineered-all-wrong Arrow 146/437-10WBP antenna that I use ... (grin)
Clint Bradford
http://www.work-sat.com
------------------------------
Message: 14
Date: Fri, 20 Nov 2009 11:51:18 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Outdoor Box for Preamp
To: amsat-bb@xxxxx.xxx
Message-ID: <06E4F0A5-9F45-4A79-92A8-13728F268FA2@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
A suitably-sized Pelican case would do ... weather/elements-proof.
Or call your local city yard or university plant ops person and see if
they have any old telephone callboxes in the junk heap.
Clint Bradford, K6LCS
------------------------------
Message: 15
Date: Fri, 20 Nov 2009 21:56:19 +0200
From: "Jan-Albert Koekemoer" <jan.koekemoer@xxxxxxxx.xx.xx>
Subject: [amsat-bb] SO-67 schedule: 21/22 Nov 2009
To: <amsat-bb@xxxxx.xxx>
Cc: sumbandila@xxxxxxxxxxxx.xxx
Message-ID:
<7D5AF80924991449B40C9CB717C7A69101D7B7E0@xxxx.xxxxxxxx.xx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi All
Since last week, we have learnt a couple of things re the behaviour of the FM
payload, most notibly that the drop-out problem can be avoided as follows:
directly after an over, the Tx tail will be "active" for 3 seconds. If,
during this time, somebody starts to Tx, that person will be cut off when the
tail stops. For the time being, the cut-outs can therefore be avoided by
waiting out the 3s tail before transmitting.
This is obviously an irritation that we're still working on. Also note that
an over has a maximum permitted duration of 30s. After this, the
transmission will be terminated.
The schedule for this weekend is as follows (all times in UTC; all
activations are 15 min long):
20 Nov
23:00 Australia
21 Nov
00:19 Japan
00:36 Australia
03:33 India
06:55 RSA
09:45 Europe
11:35 Brazil
13:07 Brazil
14:30 Canada/USA
16:05 Canada/USA
17:38 Canada/USA
21:11 New Zealand
23:57 Japan
22 Nov
00:14 Australia
06:34 RSA
07:49 Europe
08:10 RSA
11:13 Brazil
12:46 Brazil
14:10 Canada/USA
15:43 Canada/USA
17:17 Canada/USA
Regards
Jan-Albert
ZR1JAK
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End of AMSAT-BB Digest, Vol 4, Issue 616
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