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CX2SA > SATDIG 30.11.11 22:05l 279 Lines 9282 Bytes #999 (0) @ WW
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Sent: 111130/2002Z @:CX2SA.LAV.URY.SA #:41176 [Minas] FBB7.00e $:AMSATBB6650
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: FO29 status (Andrew Glasbrenner)
2. Re: FO29 status (i8cvs)
3. IC-9100 with SatPC32 (kb2m@xxxxxxx.xxxx
4. TS2000 Birdie Follow-Up (John Papay)
5. Re: ARISSat-1 (37772) decay (Nico Janssen)
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Message: 1
Date: Wed, 30 Nov 2011 13:07:38 -0500 (GMT-05:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: John Geiger <aa5jg@xxxxxxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: FO29 status
Message-ID:
<25924508.1322676458333.JavaMail.root@xxxxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
It has been revived before, when the solar illumination percentages get
better.
73, Drew
-----Original Message-----
>From: John Geiger <aa5jg@xxxxxxx.xxx>
>Sent: Nov 30, 2011 12:10 PM
>To: AMSAT-BB <amsat-bb@xxxxx.xxx>
>Subject: [amsat-bb] FO29 status
>
>Is there any hope for FO29 to come back to life, or is it dead for good?
>It was the only linear Mode J, and would be great to come back to life.
>
>73s John AA5JG
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Wed, 30 Nov 2011 19:49:53 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "John Geiger" <aa5jg@xxxxxxx.xxx>, "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Cc: 'IW6OVD Fernando Di Bartolomeo' <fernandodibartolomeo@xxxxx.xx>
Subject: [amsat-bb] Re: FO29 status
Message-ID: <002501ccaf90$d9479400$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "John Geiger" <aa5jg@xxxxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Wednesday, November 30, 2011 6:10 PM
Subject: [amsat-bb] FO29 status
> Is there any hope for FO29 to come back to life, or is it dead for good?
> It was the only linear Mode J, and would be great to come back to life.
>
> 73s John AA5JG
Hi John, AA5JG
FO29 is not the only linear mode satellite and you can actually use
OSCAR-7 and VO52 in Mode-B with great signals in 2 meters.
Day after yesterday on the ascending orbit Nr 35527 I was in
contact with IW6OVD chatting in SSB for 12 minutes only with
him the full orbit like on the telephone.
IW6OVD posted a mp3 file of the above QSO at the following
address:
http://hamradio.selfip.com/iw6ovd/VO-52.mp3
If you haven't worked either of these two historic satellites,AO7
and VO52, do it NOW!
73" de
i8CVS Domenico
------------------------------
Message: 3
Date: Wed, 30 Nov 2011 19:08:44 +0000 (UTC)
From: kb2m@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] IC-9100 with SatPC32
Message-ID:
<1574696358.493661.1322680124863.JavaMail.root@xxxxxxx.xxxxxxxxxxx.xx.xxxx.xxx
xxxx.xxx>
Content-Type: text/plain; charset=utf-8
I'm just getting started setting up my IC-9100. I tried to control it with
SatPC32 last night via the USB cable.I couldn't get this to work. I'm seeing
the virtual comports in WIN7 device manager, but SatPC32 doesn't work at all
with them. The USB port works fine with the RT systems memory programming
s/w so I'm assuming my Icom drivers are installed and working correctly. My
question, does anyone have the 9100 working with SatPC32 via the USB cable?
Or do I have to use the CI-V cable for radio control?
73 Jeff kb2m
------------------------------
Message: 4
Date: Wed, 30 Nov 2011 14:12:38 -0500
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] TS2000 Birdie Follow-Up
Message-ID: <406144.16976.bm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
KC9DOA mentions that he still had the birdie
problem with a downconverter and that is understandable.
The TS2000 radiates the birdie and if your downconverter
is not shielded or the UHF antenna is too close to the
radio, you might still pick it up. Simple experimentation
will find the right combination to virtually eliminate the
birdie. So try a UHF handi or mobile unit and see if it
hears the birdie on 436.798. Then move things around to
see if you can minimize the effect. I've been able to do
that in the sat truck and don't have the problem at the base
station. Try a dummy load on the UHF antenna jack on the
TS2000 as well. Use quality coax with good shielding.
Drew posted a link to High Sierra Microwave for a UHF down-
converter that is up-to-date in design and performance, all
at a reasonable price. The specs call for a 5v supply but
Bill N6GHZ advised that the converter will operate fine up
to 16vdc input. No special supply required. He also mentioned
that the converter will perform well from 432 to 438 MHz. So this
is one possible source of a current production downconverter
manufactured by someone who knows satellites. The output IF is
lower but the TS2000 receiver is continuous so there should be
no problem. Instead of a 407MHz offset, use 425MHz and the receiver
shifts down to 10MHz for a 435MHz input:
doppler.sqf entry:
AO-27,436795,145850,FM,FM,NOR,425000,0
I've not seen a whole lot mentioned about the Funcube performance
when connected to a big antenna in a crowded RF environment. I've
had mine on the KLM's and the performance is poor because of
overload. Cavity filters work wonders but not everyone has them.
High Sierra also makes front end filters and filter/LNA combinations
for the Funcube as well as other products which make the Funcube more
versatile. It's worth checking out the webpage to see what is
available.
73,
John K8YSE
------------------------------
Message: 5
Date: Wed, 30 Nov 2011 20:39:49 +0100
From: Nico Janssen <hamsat@xxxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: ARISSat-1 (37772) decay
Message-ID: <4ED68685.4090805@xxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi John,
A 100 % correlation between the decay rate and the daily solar
flux values is not to be expected. But there is a relation
with the longer term average solar flux values.
Furthermore, not only the solar flux (actually the UV radiation
levels) but also variations in the solar wind, in combination
with the polarity of the interplanetary magnetic field,
influence the decay rate.
73,
Nico PA0DLO
On 2011-11-28 23:11, John Heath wrote:
> Hi Nico,
>
> Good to see postings on this topic.
>
> I plotted daily change in Mean Motion, and then plotted Solar Flux for the
same period. (15days).
> It'snot obvious from the shapes of the two graphs that SF is producing the
daily variation.
> I tried the correlation function in Excel which returned a figure of -0.54
for the two data sets. ( 1= perfect correlation)
>
> Fairly new to "orbital decay predictions" so would be interested in any
comments you may have, or anyone else on the list who is knowledeable on
this subject.
>
> 73 John G7HIA
>
>
> ________________________________
> From: Nico Janssen<hamsat@xxxxxx.xx>
> To: amsat-bb@xxxxx.xxx
> Sent: Monday, 28 November 2011, 20:36
> Subject: [amsat-bb] Re: ARISSat-1 (37772) decay
>
> Hi,
>
> With its relatively high area to mass ratio, ARISSat 1 is
> quite sensitive to space weather changes. In the past two
> weeks solar flux values have been relatively low, around
> 140, while they were around 180 in the weeks before. Also
> there have not been any magnetic storms.
>
> As a result of this low solar activity, the expected decay
> date of ARISSat 1 has now slipped to the end of December.
> My current prediction is 27 December. But if solar activity
> stays at these low levels, the decay date will even shift
> into early January. So it is still too early to make any
> sensible predictions.
>
> 73,
> Nico PA0DLO
>
>
> On 2011-11-18 15:05, Nico Janssen wrote:
>> Hi,
>>
>> So far all my analyses of the evolution of the orbit of ARISSat 1
>> have resulted in a predicted decay date sometime in December 2011.
>> Actually my current predicted decay date for this satellite is
>> December 17. Obviously it depends very much on how solar activity
>> develops in the coming weeks.
>>
>> So now we have seen decay predictions ranging from December 2011
>> to April 2012. Let's see how we converge to the actual decay date.
>>
>> 73,
>> Nico PA0DLO
>>
>>
> _______________________________________________
> 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
>
>
------------------------------
_______________________________________________
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 6, Issue 650
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