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CX2SA > SATDIG 09.05.08 00:19l 833 Lines 28679 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Replacement for TH-D7A(G) ? (Jeff Yanko)
2. Re: Yaesu G500 bearings, KLM antennas (i8cvs)
3. Re: "Birdies" from Linksys Wireless router
(Nigel A. Gunn G8IFF/W8IFF)
4. Yaesu G5500 rotor repair pictures and hints (Ken Swaggart)
5. Re: "Birdies" from Linksys Wireless router (Karl Sandstrom)
6. Delfi tonight (john heath)
7. AO-51 mode change to V/S (Gould Smith)
8. Re: Yaesu G500 bearings, KLM antennas (i8cvs)
9. AO-7 log. (John Hackett)
10. AO-51 V/S Mode (Allen F. Mattis)
11. DELFI-C3 over Japan 11:27UTC (ji1izr/Masahiro SANADA)
12. ANDE FCAL new re-entry prediction (Armando Mercado)
13. FT847 doppler tuning and RASCAL (Robert Turlington)
14. DELFI-C3 over Japan 13:00UTC (ji1izr/Masahiro SANADA)
15. Re: ANDE FCAL new re-entry prediction (Robert Bruninga)
16. Re: DELFI-C3 over Japan 11:27UTC (Bruce Robertson)
17. Re: ANDE FCAL new re-entry prediction (Mike Rupprecht)
----------------------------------------------------------------------
Message: 1
Date: Wed, 7 May 2008 12:39:00 -0700
From: "Jeff Yanko" <wb3jfs(AT)cox.net>
Subject: [amsat-bb] Re: Replacement for TH-D7A(G) ?
To: "Jim Jerzycke" <kq6ea(AT)pacbell.net>, "Ronald Nutter"
<rnutter(AT)networkref.com>, <amsat-bb(AT)amsat.org>
Message-ID: <002f01c8b079$ffadf0e0$6501a8c0(AT)QUECREEK>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Anybody looking for a TH-D7A(G), Ham Radio Outlet told me they still have
plenty on hand. The person I talked to said he hadn't heard of anything
about being discontinued but also stated that doesn't mean it has occured.
73,
Jeff WB3JFS
----- Original Message -----
From: "Jim Jerzycke" <kq6ea(AT)pacbell.net>
To: "Ronald Nutter" <rnutter(AT)networkref.com>; <amsat-bb(AT)amsat.org>
Sent: Tuesday, May 06, 2008 4:14 PM
Subject: [amsat-bb] Re: Replacement for TH-D7A(G) ?
>I just checked the AES website, and it has a "*" after
> the listing indicating it's discontinued.
> Perhaps Kenwood is working on a new one to go with the
> TM-D710?
> Jim KQ6EA
>
> --- Ronald Nutter <rnutter(AT)networkref.com> wrote:
>
>> I stopped by the local ham store today to buy the
>> TH-D7A(G) but was told
>> they were out of stock and it had been discontinued.
>> Has anyone heard
>> of its replacement and have any info ?
>>
>> I was thinking of getting this to start working the
>> Digital birds.
>>
>> Thanks,
>> Ron
>> KA4KYI
>> _______________________________________________
>> 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
>
------------------------------
Message: 2
Date: Wed, 7 May 2008 22:09:18 +0200
From: "i8cvs" <domenico.i8cvs(AT)tin.it>
Subject: [amsat-bb] Re: Yaesu G500 bearings, KLM antennas
To: "KYLE YOKSH" <yokshs(AT)sbcglobal.net>, "AMSAT-BB"
<amsat-bb(AT)amsat.org>
Message-ID: <003701c8b07e$3d54e1c0$0201a8c0(AT)tin.it>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "KYLE YOKSH" <yokshs(AT)sbcglobal.net>
To: <amsat-bb(AT)amsat.org>
Sent: Friday, March 21, 2008 8:36 PM
Subject: [amsat-bb] Yaesu G500 bearings, KLM antennas
> Hello,
>
> I've got a KR-500 and G500a rotor that need a good servicing. I've found
a lot of great info in the archives that will help me, but still have a few
questions..
>
> I've read that the original bearings were steel, and begin to rust
almost immediately after installation. Can anyone suggest a better quality
bearing, and perhaps a source and part number?
>
Hi Kyle, K0KN
The KR-500 and G500a elevation rotors are mechanically similar and if
you look at the KR-500 Instruction Manual you will find the exploded
mechanical drawing with part numbar and location.
Each bearing is composed by part numbar 34 made with 20 ball bearings
size 0.312 ( 5/16 inch ) and a bearing holder part number 33
By the way one groove for the balls is casted into the "aluminum boom
shaft tube" part number 29 and the other groove is casted into the rotor
housing 1.2.
The bearing holder 33 is a stainless steel toothed ring with 20 teeth and
the purpose of it is to keep the 20 balls separated each other while holding
the lubricant grease between them and lubricate the grooves during rotation
preventing in addition the wather to enter the rotor housing from the
outside.
The problem here is that the balls are not in contact-to-contact each other
but they are separated each other by the teeth of the bearing holder.
In this condition when the weight of the antennas is very large the radial
vertical force generated by it's weight is not absorbed by the balls but is
completely applied over the teeth and so the 20 balls will be forced to
separate away one from the other.
This load is responsible to wear out, to deform and to cut the teeth but
as soon only one or two teeth are broken then the distance from the balls
decreases so that the assembly tube gear 31 has room to fall down a little
bit but the distance between it and the internal gear 10,11 increases up to
a point that to come into gear with the pinion fail.
> I've also read that the bearing cages are subject to failure, and some
> folks prefer to ditch them altogether.
To cure this problem and prevent damages to pinion and gear 31 I have not
used anymore the bearing holder 33 but I have filled the grooves with
black molibden grease adding in it , I do not remember exacly if two or tree
more same size balls in order to replace the original room occuped by
the teeth and this rotator is actually running without problems from several
years now.
When I did this modifications in 1992 the spare parts for Kempro were sold
by SMC South Midlands Communications l.t.d in UK actually available at
shaun.hey(AT)smc-comms.com but I got advice that actually they do not have
many spare parts at stock for it.
> I'm also curious if anyone has any suggestions to optimize my old KLM
> crossed yagis?
> I use a KLM 2m14c and 43518c, and they seem to work fairly well, but are
> not exactly
> top performers. I've never opened the polarization switcher units on
> either antenna, but suppose I might want to clean the relay contacts?
I have the same antennas and for the KLM 2M-14C I realized immediately
that the PCB of the CS3 switcher carrying the polarization relay was the
critical point exposed to rain and umidity condensation.
For the above reason I have incapsulated the PCB with it's relay into an
additional plastic box drilling in it few suitable holes to drain out water
and let the relay to stay at the same atmospheric pressure inside and
outside the additional box and this prevent condensation of the umidity.
In order to prevent that during temperature variation occurring from night
and day new contaminated air enters inside the original relay cup ( the
relay breathe air + pollution) the original plastic cup of the switching
relay must be very well silicon sealed and the studs fitted inside the PCB
must be inspected for good soldering.
In my antenna circularity switcher CS3 I found as new that one stud was not
perfectly soldered to the trace of the PCB but when I attemped to better
solder it I realized that the stud becames immediately oxidated when heated
by the soldering iron.
The stud of this relay is not made of copper and it became oxidated if the
temperature of the soldering iron is too high so that it was necessary to
scratch it and solder it again at a lower temperature using Alpha Metals
Inc. Plastic Rosin Solder 62 Sn , 36 Pb and 2 Ag
Another precaution to increase the relay contact life is not to switch the
polarization while transmitting expecially with high power and the use
of an electrical interlock between TX and polarization Switch seems to
be a good idea.
About my 435-40CX the original CS-2 switcher is identical to that of your
435-18 C but I have not used the CS-2 because I have replace it with one
of my own designe 4 polarizations V-H-RHCP-LHCP as published into the
AMSAT-Journal, March.April 2007 Part-1 and May-June 2007 Part-2
>
> Since my tower must be tilted over to service the rotator and antennas,
I'd like to get several years of service out of this gear.
>
If you mount the antennas as per the Assembly Instruction of the Manual
they will be already optimized for the best performance for gain and VSWR
and I don't think it will be possible to do better.
By the way in two separate email I will send to you copy of the mechanical
drawings for the KR-500 and a set of pictures showing how I have
water-protected the CS3 for the KLM 2M-14C and as well for the KLM
2M-22C
> Thank you for any help.
>
> 73,
>
> Kyle
> K0KN
You welcome and 73" de
i8CVS Domenico
------------------------------
Message: 3
Date: Wed, 07 May 2008 22:21:11 +0000
From: "Nigel A. Gunn G8IFF/W8IFF" <nigel(AT)ngunn.net>
Subject: [amsat-bb] Re: "Birdies" from Linksys Wireless router
To: amsat-bb <amsat-bb(AT)amsat.org>
Message-ID: <48222B57.4070105(AT)ngunn.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I successfully supplemented my ferrites by threading the phone cable to
the modem/router down a length of tightly woven co-ax braid, grounded to
the modem ground one end and the mains earth at the other.
------------------------------
Message: 4
Date: Wed, 7 May 2008 15:27:39 -0700
From: "Ken Swaggart" <k.swaggart(AT)charter.net>
Subject: [amsat-bb] Yaesu G5500 rotor repair pictures and hints
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>
Message-ID: <049d01c8b091$8fe86de0$1200a8c0(AT)guest>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
In case anyone is doing a G5500 repair I've posted some pictures of my
elevation rotor repair process, and some hints from this reflector a couple
of years ago. They are posted at:
http://webpages.charter.net/k.swaggart/W7KKE/rotor/rotor.html
73,
Ken, W7KKE
------------------------------
Message: 5
Date: Wed, 7 May 2008 17:42:58 -0500
From: "Karl Sandstrom" <k5man(AT)cox.net>
Subject: [amsat-bb] Re: "Birdies" from Linksys Wireless router
To: <amsat-bb(AT)amsat.org>
Message-ID: <001201c8b093$b3264550$1901a8c0(AT)karla42c504e65>
Content-Type: text/plain; charset="us-ascii"
I use shielded cat5 on my Linksys. I still have the birdies but have to get
the HT within 6" of the router for it to break squelch. It does not affect
my radios with outside antennas.
Karl R. Sandstrom, K5MAN
Greenwell Springs, Louisiana
------------------------------
Message: 6
Date: Wed, 7 May 2008 23:47:26 +0100
From: "john heath" <g7hia(AT)btinternet.com>
Subject: [amsat-bb] Delfi tonight
To: "amsat" <amsat-bb(AT)amsat.org>
Message-ID: <000801c8b094$54efcff0$4001a8c0(AT)MainPC>
Content-Type: text/plain; charset="iso-8859-1"
Hi Chaps,
Good signals in IO92. During the 22:30 UTC pass there were several breaks in
transmission and periods when the signal did not have its characteristic
sound.
I see that the OBC runs very cool. I recorded the lowest temperature I have
seen -5.679 C.
RAP 1 Temp seems unchaging since I started to take telemetry at -68.1C is this
sensor broken I wonder.
73 John G7HIA
------------------------------
Message: 7
Date: Wed, 7 May 2008 19:19:53 -0400
From: "Gould Smith" <gouldsmi(AT)bellsouth.net>
Subject: [amsat-bb] AO-51 mode change to V/S
To: <amsat-bb(AT)amsat.org>
Cc: ao51-modes(AT)amsat.org
Message-ID: <F4AAF7808B2D4B6D923B2AA5E7B7AC4A(AT)GouldMainPC>
Content-Type: text/plain; charset="iso-8859-1"
I will switch AO-51 into V/S mode duirng the 2 hours around the UTC date
change tonight.
In addition to switching the mode, I need to downlink telemetry. I can not be
any more precise exactly when the mode will completely switch. I plan on
turning the L-Band uplink off, switching TXA to digital mode and getting the
telemetry for the last few days. Depending upon conditions, I may have to
turn TXB off for a while and increase TXA.
Regardless, by the end of the second east coast of the US pass 0115Z AO-51
will be in mode V/S.
V Uplink 145.880 MHz
S Downlink 2401.200 MHz
Note that we will be using the 145.88 MHz uplink to keep those users that
don't read the current mode information from interferring with those using the
proper frequency pair.
This mode will last until UTC 12 May when we will enter the normal of
V/U analog 145.92/435.300 MHz
L/U digital 1268.7/435.150 MHz
Enjoy V/U for the rest of this week.
73,
Gould, WA4SXM
AO-51 Command Station
------------------------------
Message: 8
Date: Thu, 8 May 2008 02:44:57 +0200
From: "i8cvs" <domenico.i8cvs(AT)tin.it>
Subject: [amsat-bb] Re: Yaesu G500 bearings, KLM antennas
To: "KYLE YOKSH" <yokshs(AT)sbcglobal.net>, "AMSAT-BB"
<amsat-bb(AT)amsat.org>
Message-ID: <009801c8b0a4$bdbd8b20$0201a8c0(AT)tin.it>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "KYLE YOKSH" <yokshs(AT)sbcglobal.net>
To: <amsat-bb(AT)amsat.org>
Sent: Friday, March 21, 2008 8:36 PM
Subject: [amsat-bb] Yaesu G500 bearings, KLM antennas
> Hello,
>
> I've got a KR-500 and G500a rotor that need a good servicing. I've found
> a lot of great info in the archives that will help me, but still have a
few
> questions..
>
> I've read that the original bearings were steel, and begin to rust
> almost immediately after installation. Can anyone suggest a better
quality
> bearing, and perhaps a source and part number?
>
Hi Kyle, K0KN
The KR-500 and G500a elevation rotors are mechanically similar and if
you look at the KR-500 Instruction Manual you will find the exploded
mechanical drawing with part numbar and location.
Each bearing is composed by part numbar 34 made with 20 ball bearings
size 0.312 ( 5/16 inch ) and a bearing holder part number 33
By the way one groove for the balls is casted into the "aluminum boom
shaft tube" part number 29 and the other groove is casted into the rotor
housing 1.2.
The bearing holder 33 is a stainless steel toothed ring with 20 teeth and
the purpose of it is to keep the 20 balls separated each other while holding
the lubricant grease between them and lubricate the grooves during rotation
preventing in addition the wather to enter the rotor housing from the
outside.
The problem here is that the balls are not in contact-to-contact each other
but they are separated each other by the teeth of the bearing holder.
In this condition when the weight of the antennas is very large the radial
vertical force generated by it's weight is not absorbed by the balls but is
completely applied over the teeth and so the 20 balls will be forced to
separate away one from the other.
This load is responsible to wear out, to deform and to cut the teeth but
as soon only one or two teeth are broken then the distance from the balls
decreases so that the assembly tube gear 31 has room to fall down a little
bit but the distance between it and the internal gear 10,11 increases up to
a point that to come into gear with the pinion fail.
>
> I've also read that the bearing cages are subject to failure, and some
> folks prefer to ditch them altogether.
>
To cure this problem and prevent damages to pinion and gear 31 I have not
used anymore the bearing holder 33 but I have filled the grooves with
black molibden grease adding in it , I do not remember exacly if two or tree
more same size balls in order to replace the original room occuped by
the teeth and this rotator is actually running without problems from several
years now.
When I did this modifications in 1992 the spare parts for Kempro were sold
by SMC South Midlands Communications l.t.d in UK actually available at
shaun.hey(AT)smc-comms.com but I got advice that actually they do not have
many spare parts at stock for it.
>
> I'm also curious if anyone has any suggestions to optimize my old KLM
> crossed yagis?
> I use a KLM 2m14c and 43518c, and they seem to work fairly well, but are
> not exactly
> top performers. I've never opened the polarization switcher units on
> either antenna, but suppose I might want to clean the relay contacts?
>
I have the same antennas and for the KLM 2M-14C I realized immediately
that the PCB of the CS3 switcher carrying the polarization relay was the
critical point exposed to rain and umidity condensation.
For the above reason I have incapsulated the PCB with it's relay into an
additional plastic box drilling in it few suitable holes to drain out water
and let the relay to stay at the same atmospheric pressure inside and
outside the additional box and this prevent condensation of the umidity.
In order to prevent that during temperature variation occurring from night
and day new contaminated air enters inside the original relay cup ( the
relay breathe air + pollution) the original plastic cup of the switching
relay must be very well silicon sealed and the studs fitted inside the PCB
must be inspected for good soldering.
In my antenna circularity switcher CS3 I found as new that one stud was not
perfectly soldered to the trace of the PCB but when I attemped to better
solder it I realized that the stud becames immediately oxidated when heated
by the soldering iron.
The stud of this relay is not made of copper and it became oxidated if the
temperature of the soldering iron is too high so that it was necessary to
scratch it and solder it again at a lower temperature using Alpha Metals
Inc. Plastic Rosin Solder 62 Sn , 36 Pb and 2 Ag
Another precaution to increase the relay contact life is not to switch the
polarization while transmitting expecially with high power and the use
of an electrical interlock between TX and polarization Switch seems to
be a good idea.
About my 435-40CX the original CS-2 switcher is identical to that of your
435-18 C but I have not used the CS-2 because I have replace it with one
of my own designe 4 polarizations V-H-RHCP-LHCP as published into the
AMSAT-Journal, March.April 2007 Part-1 and May-June 2007 Part-2
>
> Since my tower must be tilted over to service the rotator and antennas,
> I'd like to get several years of service out of this gear.
>
If you mount the antennas as per the Assembly Instruction of the Manual
they will be already optimized for the best performance for gain and VSWR
and I don't think it will be possible to do better.
By the way in two separate email I will send to you copy of the mechanical
drawings for the KR-500 and a set of pictures showing how I have
water-protected the CS3 for the KLM 2M-14C and as well for the KLM
2M-22C
> Thank you for any help.
>
> 73,
>
> Kyle
> K0KN
You welcome and 73" de
i8CVS Domenico
------------------------------
Message: 9
Date: Wed, 7 May 2008 20:39:19 +0200
From: John Hackett <archie.hackett(AT)hotmail.com>
Subject: [amsat-bb] AO-7 log.
To: "Eu-amsat(AT)yahoogroups.com" <eu-amsat(AT)yahoogroups.com>
Cc: amsat-bb(AT)amsat.org
Message-ID: <BLU138-W4931B11172F7DEDDD5C43791D10(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
I think it's about time to put a notice on the AO-7 log again for the benefit
of those who *CAN'T* see what everybody else does.
PA1NTO at 14:45 ... then again at 14:46.
PE1BVQ at 16:26 ... then again at 16:40.
If people make a mistake they *CAN* correct it ... (tick the *REMEMBER ME*
box and edit the entry with the hourglass).
..............................................................................
....................
PLEASE !!! ... ONLY ONE ENTRY PER PASS ... (max 6 stations worked) ... MORE
!!! than 6 stations per pass and you may use two entries for the same pass.
The QSO's pane means the callsign of the station you worked, *NOT* the fact
that you called CQ. There are lots of stations calling CQ who never put an
entry in the log so a a mere CQ really of much interest to anybody.
There is a dedicated COMMENTS pane
..............................................................................
.....................
73 John. <la2qaa(AT)hotmail.com>
------------------------------
Message: 10
Date: Wed, 07 May 2008 20:29:56 -0500
From: "Allen F. Mattis" <afmattis(AT)hal-pc.org>
Subject: [amsat-bb] AO-51 V/S Mode
To: amsat-bb(AT)amsat.org
Message-ID: <auto-000491710462(AT)mail.hal-pc.org>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I had AO-51 all to myself this evening on the 0101utc pass
08-May-2008. V/S mode sounded great on the downlink with a 67 deg
max elev pass here in Houston. Uplink was 145.880 MHz. I called for
almost 10 minutes and heard no one else on the bird.
Allen N5AFV
Houston
------------------------------
Message: 11
Date: Thu, 8 May 2008 20:39:27 +0900
From: "ji1izr/Masahiro SANADA" <ji1izr(AT)jamsat.or.jp>
Subject: [amsat-bb] DELFI-C3 over Japan 11:27UTC
To: "AMSAT" <amsat-bb(AT)amsat.org>
Message-ID: <000701c8b100$32a1f3d0$abcfa8c0(AT)hamateurh6ixw2>
Content-Type: text/plain; charset="iso-2022-jp"
Hello, everyone,
I watched DEFLI-C3 just now,
listen to it and try to decode with RASCAL.
During this pass,
the sound suddenly went out about 11:27UTC.
The LOS was about 11:32UTC.
I could not decode any data.
What happened?
Masahiro SANADA
JI1IZR
------------------------------
Message: 12
Date: Thu, 8 May 2008 09:29:21 -0400
From: "Armando Mercado" <am25544(AT)triton.net>
Subject: [amsat-bb] ANDE FCAL new re-entry prediction
To: <amsat-bb(AT)amsat.org>
Message-ID: <000301c8b10f$86b7d700$e611acd1(AT)hppav>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
reply-type=original
Greetings,
FCAL continues to be heard.
Space-Track now predicts entry to occur June 4.
The latest keps are:
ANDE FCAL SPHERE 2
1 29667U 06055J 08129.47585782 .00273160 00000-0 11659-3 0 9378
2 29667 051.6186 159.3029 0001625 000.2928 359.8620 16.22017515 80161
73, Armando, N8IGJ
------------------------------
Message: 13
Date: Thu, 8 May 2008 14:59:30 +0100
From: Robert Turlington <rob_g8ate(AT)hotmail.com>
Subject: [amsat-bb] FT847 doppler tuning and RASCAL
To: Amsat Buleitin Board <amsat-bb(AT)amsat.org>
Message-ID: <BAY112-W6445E3800282459A9F197C0D00(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Hi All
because the ft847 won't tune in increments of less than 10hz via the CAT port
I have found it difficult getting data from DELFI. In the end I had to
increase the update time to 10secs which gives RASCAL time to follow the
doppler down and decode packets,this is ok when the rate of frequency change
is slow but on high elevation passes at TCA it stuggles.Appart from tuning by
hand has anyone got other (better) solutions to the doppler tuning problem
with the 847?Regards Robert G8ATE
_________________________________________________________________
Great deals on almost anything at eBay.co.uk. Search, bid, find and win on
eBay today!
http://clk.atdmt.com/UKM/go/msnnkmgl0010000004ukm/direct/01/
------------------------------
Message: 14
Date: Thu, 8 May 2008 23:13:31 +0900
From: "ji1izr/Masahiro SANADA" <ji1izr(AT)jamsat.or.jp>
Subject: [amsat-bb] DELFI-C3 over Japan 13:00UTC
To: "AMSAT" <amsat-bb(AT)amsat.org>
Message-ID: <001201c8b116$36422300$abcfa8c0(AT)hamateurh6ixw2>
Content-Type: text/plain; charset="iso-2022-jp"
Dear everyone,
Thank you for many advices.
The pass 11:27UTC may have made DELFI out of sunshine.
I finally decoded 66 packets about 13:00 pass over Japan
and sent them through net on my registered ID of RASCAL.
I used "32789U" TLE for Winorb + WoStars (+1kHz offset).
I am starting to know how to catch DELFI!
Masahiro SANADA
JI1IZR
***************************
Masahiro Sanada
de ji1izr
Hiratsuka-city
Kanagawa,Japan
ji1izr_1975(AT)nifty.com
ji1izr(AT)jarl.com
ji1izr(AT)jamsat.or.jp
web: http://ji1izr.atnifty.com/
blog: http://ji1izr.air-nifty.com/
***************************
------------------------------
Message: 15
Date: Thu, 8 May 2008 09:58:46 -0400
From: "Robert Bruninga" <bruninga(AT)usna.edu>
Subject: [amsat-bb] Re: ANDE FCAL new re-entry prediction
To: "'Armando Mercado'" <am25544(AT)triton.net>, <amsat-bb(AT)amsat.org>
Message-ID: <014301c8b113$a2614dc0$42577a83(AT)ewlab.usna.edu>
Content-Type: text/plain; charset="us-ascii"
> FCAL continues to be heard.
> Space-Track now predicts entry to occur June 4.
Current passes are in the dark in Northern hemisphere and during
day in Southern hemisphere. So if there are any USA nightowls
or pre-dawn risers, we need the telemetry...
> ANDE FCAL SPHERE 2
> 1 29667U 06055J 08129.47585782 .00273160 00000-0 11659-3
0 9378
> 2 29667 051.6186 159.3029 0001625 000.2928 359.8620
16.22017515 80161
Bob
WB4APR
------------------------------
Message: 16
Date: Thu, 8 May 2008 12:20:15 -0300
From: "Bruce Robertson" <ve9qrp(AT)gmail.com>
Subject: [amsat-bb] Re: DELFI-C3 over Japan 11:27UTC
To: "ji1izr/Masahiro SANADA" <ji1izr(AT)jamsat.or.jp>
Cc: AMSAT <amsat-bb(AT)amsat.org>
Message-ID:
<49657a760805080820y780a09dbm219ee004b104dbc9(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hello, Sanada-san --
Delfi has no batteries on board; it works entirely from its solar
panels. It appears that at present it sometimes gets in an attitude,
or position, where its panels do not generate sufficient voltage (or
current?) and it shuts down. In addition, sometimes the audio quality
of the BPSK transmission degrades; I've assumed that this is a related
problem.
Often, it will restart half a minute later, so keep listening to the pass.
I believe that this is a problem the control team understands and is
going to try to address, but naturally they are being very cautious.
A longer pass helps a great deal with getting used to tuning the
signal. Start by tuning for the strongest signal on your s-meter, then
tweak it from there. Don't keep moving the tuning around, because
RASCAL needs some time to get a lock.
73, Bruce
VE9QRP
On Thu, May 8, 2008 at 8:39 AM, ji1izr/Masahiro SANADA
<ji1izr(AT)jamsat.or.jp> wrote:
> Hello, everyone,
>
> I watched DEFLI-C3 just now,
> listen to it and try to decode with RASCAL.
>
> During this pass,
> the sound suddenly went out about 11:27UTC.
>
> The LOS was about 11:32UTC.
>
> I could not decode any data.
>
> What happened?
>
> Masahiro SANADA
> JI1IZR
>
> _______________________________________________
> 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: 17
Date: Thu, 8 May 2008 18:14:25 +0200
From: "Mike Rupprecht" <mail(AT)mike-rupprecht.de>
Subject: [amsat-bb] Re: ANDE FCAL new re-entry prediction
To: <bruninga(AT)usna.edu>, "'Armando Mercado'" <am25544(AT)triton.net>,
<amsat-bb(AT)amsat.org>
Message-ID: <000401c8b126$95b26830$c1173890$(AT)de>
Content-Type: text/plain; charset="iso-8859-1"
Jim, KG4QWC did make an prediction for re-entry. See
http://www.dk3wn.info/images/FCal2008Apr13.gif
73, Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] Im
Auftrag von Robert Bruninga
Gesendet: Donnerstag, 8. Mai 2008 15:59
An: 'Armando Mercado'; amsat-bb(AT)amsat.org
Betreff: [amsat-bb] Re: ANDE FCAL new re-entry prediction
> FCAL continues to be heard.
> Space-Track now predicts entry to occur June 4.
Current passes are in the dark in Northern hemisphere and during
day in Southern hemisphere. So if there are any USA nightowls
or pre-dawn risers, we need the telemetry...
> ANDE FCAL SPHERE 2
> 1 29667U 06055J 08129.47585782 .00273160 00000-0 11659-3
0 9378
> 2 29667 051.6186 159.3029 0001625 000.2928 359.8620
16.22017515 80161
Bob
WB4APR
_______________________________________________
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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 3, Issue 231
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