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CX2SA > SATDIG 12.06.10 20:09l 606 Lines 15513 Bytes #999 (0) @ WW
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Today's Topics:
1. IKAROS Solar Sail Successfully Deployed (B J)
2. VO-52 - OK to Work in FM? (Clint Bradford)
3. Re: SO-67 Back Next week? (Mark Lunday)
4. Re: IKAROS Solar Sail Successfully Deployed (Reid Crowe)
5. HO-68 Schedule -13-20 June 2010 (Alan Kung)
6. Re: VO-52 - OK to Work in FM? (i8cvs)
7. Re: HO-68 Schedule -13-20 June 2010 (i8cvs)
8. Re: VO-52 - OK to Work in FM? (Alex)
9. Doppler.SQF (Pat McGrath)
10. Re: IKAROS Solar Sail Successfully Deployed (B J)
11. Re: IKAROS Solar Sail Successfully Deployed (Peter Guelzow)
12. Re: VO-52 - OK to Work in FM? (andy thomas)
----------------------------------------------------------------------
Message: 1
Date: Fri, 11 Jun 2010 07:38:00 -0700 (PDT)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] IKAROS Solar Sail Successfully Deployed
To: amsat-bb@xxxxx.xxx
Message-ID: <996077.22214.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
http://www.jaxa.jp/press/2010/06/20100611_ikaros_e.html
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 2
Date: Fri, 11 Jun 2010 18:41:37 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] VO-52 - OK to Work in FM?
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <783B57E0-1B8C-4F72-A695-ACD09E6AE27E@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
The Bengal ham club posted about five years ago instructions for working
V)-52 in FM mode. Is that still OK to do?
"HAMSAT or VO-52 is a satellite intended for SSB/CW operation. However as in
VU land very few of us can afford multimode VHF/UHF radios we are accessing
Hamsat on FM for which it is best to stick to the centre frequencies
(435.250 uplink and 145.900 downlink). It is also best to simultaneously
monitor your own signals on the downlink using a separate radio. Hamsat
requires around 100 watt ERP for solid 59 signals. So if you are using 10
watts RF the recommended antenna gain is around 10 db. However Hamsat or
VO-52 have been accessed on high elevation passes using 25 watts ERP. If
you want to use omni directional antennas you can build a turnstile or an
eggbeater antenna which has a dome shaped radiation pattern with circular
polarisation. Separate 10 element UHF and 5 element VHF crossed yagis with
circular polarisation would give excellent results. Only keep the
transmission line loss (particularly on UHF) minimum. Use hardline CATV
cable if transmission line is more than!
100 feet. Otherwise if you use RG-213 keep the feeder length to around 20
- 30 feet. I have been using a handheld arrow yagi antenna with RG-58U cable
of around 1 meter length. Doppler compensation is needed particularly on the
UHF uplink where the signal will shift around 10 KHz. So for the uplink it
is best to start from 435.240 MHz during AOS and end at 435.260 MHz at LOS
and on the downlink start receiving 5 KHz up at 145.905 MHz and end at
145.895 MHz. Currently the VU transponder is on and it has a beacon
(continuous carrier) on 145.936 MHz though we have not yet received the
beacon from Calcutta / Kolkata."
Clint, K6LCS
------------------------------
Message: 3
Date: Fri, 11 Jun 2010 22:31:37 -0400
From: "Mark Lunday" <mlunday@xx.xx.xxx>
Subject: [amsat-bb] Re: SO-67 Back Next week?
To: <jmeek@xxxxxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <000301cb09d7$61ef1c30$25cd5490$@xx.xxx>
Content-Type: text/plain; charset="us-ascii"
I was listening for SO-67 this evening (0230 UTC pass) and did not hear
anything.
Does the bird require illumination? Has it returned to normal yet?
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of John Meeks
Sent: Friday, May 07, 2010 1:57 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] SO-67 Back Next week?
From Jan-Albert Koekemoer via sumbandila.googlegroups.com :
"We've indeed have a long "radio silence" now. Some good news is that we're
reprogramming the command transceiver on the satellite used by the SA-AMSAT
payload (CTR-VU2) tonight. This will hopefully sidestep the issue we've had
with the cut-off at the PTT tail. The idea is to keep the PTT active
for the
15 minute duration that the SA-AMSAT payload will be active at a time, i.e.
uncouple the PTT functionality from the rest of the SA-AMSAT payload
functions.
We will then make sure it works as expected (hopefully first half of next
week) and if all goes well, aim to have the payload fully operational and in
service again by the end of the week."
From SARLNEWS:
"SUMBANDILASAT SOON BACK IN AMATEUR RADIO MODE
SA AMSAT announced that SumbandilaSat will soon be back in the Amateur
Radio Mode. Currently Sunspace will re-program CR2 with a fix for the
SA AMSAT PTT problem . This is expected to be completed by mid May.
Programming of the Amateur Radio Payload will in future be carried out
by the CSIR Satellite Application Centre at Hartebeeshoek. SA AMSAT will
work with SAC to coordinate operational requests. More details on how to
request operation will be announced in the next two weeks and published
on www.amsatsa.org.za <http://www.amsatsa.org.za>.
We will not be using googlegroups."
_______________________________________________
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: Fri, 11 Jun 2010 19:39:30 -0500
From: Reid Crowe <reid.crowe@xxxxx.xxx>
Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
To: amsat-bb@xxxxx.xxx
Message-ID: <4C12D742.3050608@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Is there anyway to track this?
On 6/11/2010 9:38 AM, B J wrote:
> http://www.jaxa.jp/press/2010/06/20100611_ikaros_e.html
>
> 73s
>
> Bernhard VA6BMJ @ DO33FL
>
>
>
> _______________________________________________
> 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: 5
Date: Sat, 12 Jun 2010 13:15:04 +0800
From: "Alan Kung" <alankung@xxxxxxx.xxx.xxx.xx>
Subject: [amsat-bb] HO-68 Schedule -13-20 June 2010
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002301cb09ee$45915550$6c01a8c0@xxxxxxxxxxx>
Content-Type: text/plain; charset="gb2312"
UTC:
13 June 2010
================================
16:25...Turn On--CW/SSB
India, Africa, Middle East,
Europe,NA
17:10...Turn Off
18:10...Turn On--CW/SSB
Africa,Europe,Middle East,NA
18:55...Turn Off
22:15...Turn On--CW/SSB
NA,North Asia,East Asia,Oceania
23:00...Turn Off
14 June 2010
================================
01:05...Turn On--CW/SSB
South America,NA,North Asia
01:50...Turn Off
01:56...Turn On--CW/SSB
North Asia,East Asia,South Asia
02:11...Turn Off
02:50...Turn On--CW/SSB
South America,NA,North Asia
13:35...Turn Off
17:55...Turn On--CW/SSB
Africa,Europe,NA
18:40...Turn Off
15 June 2010
================================
23:45...Turn On--CW/SSB
South America,NA,North Asia
00:30...Turn Off
00:45...Turn On--CW/SSB
South America,NA,North Asia
01:30...Turn Off
01:39...Turn On--CW/SSB
North Asia, East Asia, South Asia
01:54...Turn Off
09:50...Turn On--CW/SSB
Oceania,Asia,Europe
10:35...Turn Off
12:30...Turn On--CW/SSB
NA,Europe,Africa,South America
13:15...Turn Off
17:35...Turn On--CW/SSB
India,Middle East,Europe,NA
18:20...Turn Off
19:05...Turn On--CW/SSB
Africa,Europe,NA
19:50...Turn Off
16 June 2010
=================================
01:23...Turn On--CW/SSB
North Asia,East Asia,South Asia
09:37...Turn Off
09:35...Turn On--CW/SSB
Oceania,East Asia,North Asia,Europe
10:20...Turn Off
15:15...Turn On--CW/SSB
Oceania,East Asia,North Asia,Europe
16:00...Turn Off
17:20...Turn On--CW/SSB
Africa,Europe,NA
18:05...Turn Off
23:10...Turn On--CW/SSB
NA,North Asia,East Asia,Oceania
23:55...Turn Off
17 June 2010
=================================
01:04...Turn On--CW/SSB
North Asia,East Asia,South Asia
09:19...Turn Off
04:35...Turn On--CW/SSB
NA,North Asia,Middle East,
Europe,Africa
05:20...Turn Off
09:20...Turn On--CW/SSB
Oceania,Asia,Europe,NA
10:05...Turn Off
13:45...Turn On--CW/SSB
Europe,NA,South America
14:30...Turn Off
17:05...Turn On--CW/SSB
Africa,India,Middle East,Europe,NA
17:50...Turn Off
18:50...Turn On--CW/SSB
Africa,Europe,NA
19:35...Turn Off
22:55...Turn On--CW/SSB
Oceania,Asia,Europe,NA
23:40...Turn Off
18 June 2010
================================
02:41...Turn On--CW/SSB
North Asia,East Asia,South Asia
02:56...Turn Off
10:50...Turn On--CW/SSB
Oceania,Asia,Europe,NA
11:35...Turn Off
13:35...Turn On--CW/SSB
Europe,NA,South America
14:20...Turn Off
16:45...Turn On--CW/SSB
India,Africa,Europe,NA
17:30...Turn Off
22:35...Turn On--CW/SSB
South America,Africa,NA,
Europe,North Asia,East Asia
23:20...Turn Off
19 June 2010
================================
01:25...Turn On--CW/SSB
South America,NA,North Asia
01:10...Turn Off
02:19...Turn On--CW/SSB
North Asia,East Asia,South Asia
02:35...Turn Off
10:35...Turn On--CW/SSB
Oceania,Asia,Europe,NA
11:20...Turn Off
13:15...Turn On--CW/SSB
Europe,NA,South America
14:00...Turn Off
16:30...Turn On--CW/SSB
Africa,Europe,NA
17:15...Turn Off
20 June 2010
================================
00:05...Turn On--CW/SSB
South America,NA,North Asia
00:50...Turn Off
02:03...Turn On--CW/SSB
North Asia,East Asia,South Asia
02:18...Turn Off
05:35...Turn On--CW/SSB
North Asia,Europe,Africa
06:20...Turn Off
12:55...Turn On--FM
Europe,NA,South America
13:40...Turn Off
73
Alan Kung, BA1DU
HO-68(XW-1) Project Manager
www.camsat.cn
------------------------------
Message: 6
Date: Sat, 12 Jun 2010 08:47:45 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: VO-52 - OK to Work in FM?
To: "Clint Bradford" <clintbradford@xxx.xxx>, "AMSAT BB"
<amsat-bb@xxxxx.xxx>
Message-ID: <003301cb09fb$2a237840$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "Clint Bradford" <clintbradford@xxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Sent: Saturday, June 12, 2010 3:41 AM
Subject: [amsat-bb] VO-52 - OK to Work in FM?
> The Bengal ham club posted about five years ago instructions for working
V)-52 in FM mode. Is that still OK to do?
> Clint, K6LCS
>
Hi Clint, K6LCS
It was only a crazy idea. Why to infect with the FM a good satellite with a
linear transponder designed for CW and SSB when there are a lot of FM
satellite specifically designed for FM !
73" de
i8CVS Domenico
------------------------------
Message: 7
Date: Sat, 12 Jun 2010 11:53:28 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: HO-68 Schedule -13-20 June 2010
To: "Alan Kung" <alankung@xxxxxxx.xxx.xxx.xx>, "AMSAT-BB"
<amsat-bb@xxxxx.xxx>
Message-ID: <000f01cb0a15$1c056e20$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Alan, BA1DU
The HO-68 schedule- 13-20 June 2010 is very bad for South
Europe because in the Mediterranean area only two orbits
are useful with an elevation with no more than 45 degrees.
15 June 2010
19:05...Turn On and 19:50...Turn Off
17 June 2010
18:50...Turn On and 19:35...Turn Off
All orbits overhead for Europe HO-68 is not scheduled and
the transponder is Turned-Off
Wery tired to make calculations every week for very small !
73" de
i8CVS Domenico
------------------------------
Message: 8
Date: Sat, 12 Jun 2010 12:21:17 +0000
From: Alex <vk5alx@xxxxx.xxx>
Subject: [amsat-bb] Re: VO-52 - OK to Work in FM?
To: amsat-bb@xxxxx.xxx
Message-ID: <ema6f64226-6d95-4b54-9a2c-8db750a97912@xxxxxxx>
Content-Type: text/plain; charset=utf-8
Hi Clint.
Check out this page on the Amsat India web site
http://www.amsatindia.org/payloads.htm
Alex / VK5ALX
------------------------------
Message: 9
Date: Sat, 12 Jun 2010 10:19:53 -0700
From: "Pat McGrath" <ka6tya@xxxx.xxx>
Subject: [amsat-bb] Doppler.SQF
To: <amsat-bb@xxxxx.xxx>
Message-ID: <87C1F0A9C5E34B8AA61C7697A337EA46@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
I need SO-67 & HO-68 Doppler.sqf data.
Can someone please advise same.
------------------------------
Message: 10
Date: Fri, 11 Jun 2010 23:17:38 -0700 (PDT)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
To: amsat-bb@xxxxx.xxx
Message-ID: <996135.87588.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
--- On Fri, 6/11/10, Reid Crowe <reid.crowe@xxxxx.xxx> wrote:
> From: Reid Crowe <reid.crowe@xxxxx.xxx>
> Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
> To: amsat-bb@xxxxx.xxx
> Received: Friday, June 11, 2010, 6:39 PM
> Is there anyway to track this?
IKAROS is an interplanetary spacecraft:
http://www.jspec.jaxa.jp/e/activity/ikaros.html
so one would need very good telescope or access to something like NASA's
Deep Space Network.
<snip>
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 11
Date: Sat, 12 Jun 2010 10:46:46 +0200
From: Peter Guelzow <peter.guelzow@xxxxxx.xx>
Subject: [amsat-bb] Re: IKAROS Solar Sail Successfully Deployed
To: amsat-bb@xxxxx.xxx
Message-ID: <4C134976.4030901@xxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Reid,
you can try to listen on 8 GHz like it's done at Bochum and by some
people from the Amateur DSN group with smaller dishes.
http://www.amsat-dl.org/index.php/news-mainmenu-97/181-akatsuki-und-ikaros-in-
bochum-empfangen
http://www.uhf-satcom.com/amateurdsn/planetc/
73s Peter
On 12.06.2010 02:39, Reid Crowe wrote:
> Is there anyway to track this?
>
> On 6/11/2010 9:38 AM, B J wrote:
>
>> http://www.jaxa.jp/press/2010/06/20100611_ikaros_e.html
>>
>> 73s
>>
>> Bernhard VA6BMJ @ DO33FL
>>
>>
>>
>> _______________________________________________
>> 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: 12
Date: Sat, 12 Jun 2010 18:09:37 +0000 (GMT)
From: andy thomas <andythomasmail@xxxxx.xx.xx>
Subject: [amsat-bb] Re: VO-52 - OK to Work in FM?
To: amsat <amsat-bb@xxxxx.xxx>
Message-ID: <125422.34672.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
I don't, and I think that VU says basicaly that it's ok if you haven't
anything else - so why foul up the transponder or others by grabbing its
power? I can see it MIGHT be acceptable if you were testing a rig. but not
to treat as '51, IMHO.
But AMSAT-VU will say for sure, it's their bird.
73 de andy G0SFJ
------------------------------
_______________________________________________
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 5, Issue 264
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