| |
CX2SA > SATDIG 19.12.18 18:08l 607 Lines 18327 Bytes #999 (0) @ WW
BID : AMSATBB13427
Read: GUEST
Subj: AMSAT-BB-digest V13 427
Path: IW8PGT<CX2SA
Sent: 181219/1658Z @:CX2SA.SAL.URY.SOAM #:60560 [Salto] FBB7.00e $:AMSATBB13427
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: East Cost Roving Trip Complete (Roy Dean)
2. Re: A0-73 (Wouter Weggelaar)
3. Do not read ( F6GLJ)
4. Re: Do not read (Zach Metzinger)
5. Exoplanet Science Strategy (Arthur Feller, W4ART)
6. Re: AO-95 Rx problem (Jerry Buxton)
7. Re: Do not read (Adam Niemczyk)
8. Cheap rotator setup (Eli Caul)
9. Cheap rotator setup (Eli Caul)
10. Re: Cheap rotator setup (Scott)
11. Re: Cheap rotator setup (Zach Metzinger)
12. Re: Cheap rotator setup (GEO Badger)
13. Re: Cheap rotator setup (Ryan Noguchi)
----------------------------------------------------------------------
Message: 1
Date: Tue, 18 Dec 2018 07:47:15 -0500
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] East Cost Roving Trip Complete
Message-ID:
<CADGPg2t2xuKe3t48e2wGPwrpEziivBQxobH1xCAHm9mPCz0Lew@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Robert,
Huge "Thank You!" from me, as your grid line activation has pushed me to
101 unique grid squares!
--Roy
K3RLD
> My East Coast Roving Trip - Part Deux is now complete. All logs uploaded
> to LoTW. If you did not get a confirmation. please email me directly. If
> you need a QSL card, my QSL information is on QRZ. Total count was 179 QSOs
> and 13 grids activated (EM91|EM92, FM02, FM03|FM13, FM04|FM14, EM84|EM94,
> EM75|EM85, and EM76|EM86), across 4 states. Thanks to all for an exciting
> roving trip. 73, Robert Bankston, KE4AL
> AMSAT-NA VP of User Services
------------------------------
Message: 2
Date: Tue, 18 Dec 2018 14:54:21 +0100
From: Wouter Weggelaar <wouterweg@?????.???>
To: Colin Hurst <cjhurst@???????.???.??>
Cc: AMSAT-BB <amsat-bb@?????.???>, Cor van Heiningen
<corvanheiningen@???????.???>
Subject: Re: [amsat-bb] A0-73
Message-ID:
<CAKXf1rEVx6kzY5h31C5=vfH1YK9TfguF8SjoXXjxmmzhHVocxQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
First of all I would like to thank Colin for his many hours of work
analyzing the behaviour of AO-73.
Keep in mind that FUNcube uses passive stabilization and that the team
can not influence the attitude and spin rate of the satellite.
We have done some experiments, like Colin already mentioned, and at
the moment the satellite is placed in to full time transponder mode
for the holidays.
So expect the transponder to be on and the telemetry to be 30mW.
73
Wouter PA3WEG
FUNcube team
On Mon, Dec 17, 2018 at 11:38 PM Colin Hurst <cjhurst@???????.???.??> wrote:
>
> Some personal thoughts on this subject.
> On the 14th December AO-73 was placed back in Transponder mode after having
> been in Educational Mode for many months to examine the performance of AO-73
> in full sun. AO-73 is currently experiencing its second full sun encounter
> which will last until April 2019.
> The first experience was earlier this year when a number of observations
> were noted in AO-73's attitude. A controlled experiment has been undertaken
> during the first stage of this current full sun encounter to understand and
> quantify those previous observations.
>
> Simply put, while in full sun AO-73 slowly speeds up due to Propeller Effect
> and reaches a point where due to an offset Centre of Gravity the Nutation
> becomes excessive and AO-73 finally ceases to rotate about its Z-Z axis.
>
>
> Points of clarification.
> Educational Mode 300 milli-watts Beacon downlink.
> Transponder Mode 30 milli-watt Beacon.
> Propeller Effect occurs from the Materials Experiment on AO-73. Schools STEM
> Initiative.
> https://funcube.org.uk/education-outreach/
> The fading you are currently seeing is medium to high Nutation (Wobble about
> the Z-Z axis).
> AO-73 has not ceased to rotate about the Z-Z axis or start tumbling.
> For past history please refer to Mike's Blog and in particular.
> http://www.dk3wn.info/p/?cat=79
>
> 73 Colin VK5HI
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Jean Marc
> Momple
> Sent: Tuesday, 18 December 2018 04:15
> To: Hasan al-Basri
> Cc: amsat-bb@?????.???? corvanheiningen@???????.???
> Subject: Re: [amsat-bb] A0-73
>
> Dear All,
>
> Also noticed quite a difference on AO-73 reception this side, it used to be
> 100% reliable but less decodes theses day, I have not investigate same but
> for sure there is a degradation somehow.
>
> Just FYI
>
> 73
>
>
> Jean Marc (3B8DU)
>
> > On Dec 17, 2018, at 8:35 PM, Hasan al-Basri <hbasri.schiers6@?????.???>
> wrote:
> >
> > Agreed, severe QSB even with RHC rx antenna.
> > Also, I'm not rx anywhere near the number of TLM frames since the xponder
> > was turned on.
> >
> >
> > Hasan
> >
> >
> > On Mon, Dec 17, 2018 at 7:19 AM Cor van Heiningen <
> > corvanheiningen@???????.???> wrote:
> >
> >> Have the last days qso s made via AO-73 sat the rx goes from s 9 to 0
> >> sometimes with a lot of QRM.
> >> I think the sat turned around its axis faster than a few months ago.
> >> Many stations have problems with QSO S via this sat.
> >> 73
> >> PE1NIL
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3
Date: Tue, 18 Dec 2018 18:07:30 +0100
From: " F6GLJ" <michel-f6glj@??????.??>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Do not read
Message-ID: <000001d496f4$299dc8a0$7cd959e0$@??>
Content-Type: text/plain; charset="us-ascii"
Test, do not read
73 Qro de Michel F6GLJ
https://www.qrz.com/db/F6GLJ
------------------------------
Message: 4
Date: Tue, 18 Dec 2018 12:06:09 -0600
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Do not read
Message-ID: <db70949d-965e-c355-97c2-2b78a9c24a97@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On 12/18/18 11:07 AM, F6GLJ wrote:
> Test, do not read
"I looked at the trap, Ray."
--- Zach
N0ZGO
------------------------------
Message: 5
Date: Tue, 18 Dec 2018 16:38:35 -0500
From: "Arthur Feller, W4ART" <afeller@????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Exoplanet Science Strategy
Message-ID: <D92348D5-ECD4-4DF8-B471-E2087FDAE577@????.???>
Content-Type: text/plain; charset=utf-8
Free from the National Institutes of Science: Download Free PDF
<https://nap.us4.list-manage.com/track/click?u=eaea39b6442dc4e0d08e6aa4a&id=8d
513e72e2&e=82b5b9ba2e>
73, art?..
Arlington VA
To thrive in life, you need three bones: a wish bone, a back bone, and a
funny bone.
- Reba McEntire
http://afeller.us <http://afeller.us/>
------------------------------
Message: 6
Date: Wed, 19 Dec 2018 00:10:13 -0600
From: Jerry Buxton <n0jy@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] AO-95 Rx problem
Message-ID: <803c8941-6bf8-8236-8581-df5c052d954c@?????.???>
Content-Type: text/plain; charset=utf-8
Battery I2C shows FAIL because on some of the early Fox-1s, there was an
issue with the telemetry ADC on the battery board.? So IHU sees no
activity on the Battery I2C line and reports it as failed, it doesn't
really have a way to tell that it's the chip at the other end and not
the line.
We did not have time to isolate and fix it between builds of Fox-1A, C,
and D as they came in a string in 2014 and 2015.? Fox-1B got manifested
late(r) enough that we solved and applied the fix on her build.? Fox-1E
should be good as well.
Jerry Buxton, N?JY
On 12/17/2018 13:50, Mac A. Cody wrote:
> Why does the 'Battery I32C' indicate 'FAIL' (although I see
> that this is the same for the other FOX satellites)?
------------------------------
Message: 7
Date: Wed, 19 Dec 2018 07:56:11 +0100
From: Adam Niemczyk <sp7tec@???????.??>
To: F6GLJ <michel-f6glj@??????.??>, "amsat-bb@?????.????
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] Do not read
Message-ID: <toltlbbscghownxiytko@????>
Content-Type: text/plain; charset="UTF-8"
Hallo my friend tnx qso via sat AO73 U/V 15,12,2018 16,52 58 58 MY QSL VIA
BUREAU 73!!!!!!SP7TECOd: " F6GLJ" <michel-f6glj@??????.?????????
amsat-bb@?????.???? Wys?ane: 18:16 Wtorek 2018-12-18Temat: [amsat-bb] Do not
read> Test, do not read
>
>
>
> 73 Qro de Michel F6GLJ
> https://www.qrz.com/db/F6GLJ
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
Opinions expressed
> are solely those of the author, and do not reflect the official views
of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite
program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 8
Date: Mon, 17 Dec 2018 23:37:52 +0000
From: Eli Caul <eli.caul@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Cheap rotator setup
Message-ID:
<MW2PR20MB2060B7120E1BBE2D5D61B9CB98BC0@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="us-ascii"
Hi folks -
In my ongoing effort to figure out how to use the SSB satellites, I
duplicated this setup over the weekend:
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and-i
ncludes-free-satellite-tracking-with-pstrotator-and-the-usb-uirt/
I bought a list of materials based on the photograph, and it didn't occur
to me that the PVC parts pictured put the antennas at approximately 45
degrees and not the recommended 15 degrees.
Has anyone done this setup? If so, how did you assemble it so that the
antennas ended up at the recommended angle?
There were a couple of higher angle passes yesterday (one was at 50 degrees)
but so far I haven't been able to 'loop' the satellite. I'm using a Yaesu
FT-991A for uplink and an Airspy SDR on the downlink.
Advice appreciated. So far I've gotten some excellent advice from AMSAT
members and I really appreciate the groups level of expertise and patience
with my fundamental questions.
73 de KK6ZHZ,
- Eli Caul
Director of Customer Care
Sonic
707-237-6201 Direct
707-521-0131 Faxline
------------------------------
Message: 9
Date: Wed, 19 Dec 2018 00:49:38 +0000
From: Eli Caul <eli.caul@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] Cheap rotator setup
Message-ID:
<SN1PR20MB2061321F26DCF1E8259637E598BE0@?????????????.????????.????.???????.??
?>
Content-Type: text/plain; charset="Windows-1252"
Hi folks -
In my ongoing effort to figure out how to use the SSB satellites, I
duplicated this setup over the weekend:
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and-i
ncludes-free-satellite-tracking-with-pstrotator-and-the-usb-uirt/
I bought a list of materials based on the photograph, and it didn?t occur to
me that the PVC parts pictured put the antennas at approximately 45 degrees
and not the recommended 15 degrees.
Has anyone done this setup? If so, how did you assemble it so that the
antennas ended up at the recommended angle?
There were a couple of higher angle passes yesterday (one was at 50 degrees)
but so far I haven?t been able to 'loop' the satellite. I'm using a Yaesu
FT-991A for uplink and an Airspy SDR on the downlink.
Advice appreciated. So far I've gotten some excellent advice from AMSAT
members and I really appreciate the groups level of expertise and patience
with my fundamental questions.
73 de KK6ZHZ,
- Eli Caul
Director of Customer Care
Sonic
707-237-6201 Direct
707-521-0131 Faxline
- Eli Caul
Director of Customer Care
Sonic
707-237-6201 Direct
707-521-0131 Faxline
------------------------------
Message: 10
Date: Wed, 19 Dec 2018 11:11:33 -0500
From: Scott <scott23192@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Cheap rotator setup
Message-ID:
<CAJCSnOYopgvr64xu99Hp9bWvnGSJmFsjbUeO2z=82rxT9uXFxQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Hey Eli!
I followed the same URL and had the AZ-only setup described for a long time
- works great! You can work any satellite in the sky with ease.
As for the mount, I used a standard "tee" setup as you would expect were it
an AZ/EL install. Location prevented a fixed EL of 15 deg. from being
useful to me, so my antennas were set at 45 deg. in the summer and 30 deg.
in the winter.
Should anyone wonder about PVC supporting the weight of X-Quads so far out
from the center support, those pipe sections had a wood rod glued inside.
So, they flexed a little but not much.
Here's a pic:
https://www.qsl.net/k/k4kdr//images/2016-05-14--xquads.jpg
Good luck!
-Scott, K4KDR
=============================
On Wed, Dec 19, 2018 at 9:45 AM Eli Caul <eli.caul@?????.???> wrote:
> Hi folks -
>
> In my ongoing effort to figure out how to use the SSB satellites, I
> duplicated this setup over the weekend:
>
>
>
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and-i
ncludes-free-satellite-tracking-with-pstrotator-and-the-usb-uirt/
>
> I bought a list of materials based on the photograph, and it didn?t occur
> to me that the PVC parts pictured put the antennas at approximately 45
> degrees and not the recommended 15 degrees.
>
> Has anyone done this setup? If so, how did you assemble it so that the
> antennas ended up at the recommended angle?
>
> There were a couple of higher angle passes yesterday (one was at 50
> degrees) but so far I haven?t been able to 'loop' the satellite. I'm using
> a Yaesu FT-991A for uplink and an Airspy SDR on the downlink.
>
> Advice appreciated. So far I've gotten some excellent advice from AMSAT
> members and I really appreciate the groups level of expertise and patience
> with my fundamental questions.
>
> 73 de KK6ZHZ,
>
> - Eli Caul
>
> Director of Customer Care
> Sonic
> 707-237-6201 Direct
> 707-521-0131 Faxline
------------------------------
Message: 11
Date: Wed, 19 Dec 2018 10:39:19 -0600
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Cheap rotator setup
Message-ID: <57e7dae0-ecd2-6a93-c729-cc845e3cae6e@?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
On 12/19/18 10:11 AM, Scott wrote:
> Here's a pic:
>
> https://www.qsl.net/k/k4kdr//images/2016-05-14--xquads.jpg
Excellent back yard!
--- Zach
N0ZGO
------------------------------
Message: 12
Date: Wed, 19 Dec 2018 16:51:43 +0000 (UTC)
From: GEO Badger <w3ab@?????.???>
To: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Cheap rotator setup
Message-ID: <1135747670.225298.1545238303416@????.?????.???>
Content-Type: text/plain; charset=UTF-8
To achieve 15?, or any other fixed angle you can purchase 90? sweeps and cut
them to your required angle.?---?
Ciao baby, catch you on the flip side. ??
GEO ???
http://www.w3ab.org
Time flies like an arrow, fruit flies like a banana.
From: Zach Metzinger <zmetzing@?????.???>
To: amsat-bb@?????.???
Sent: Wednesday, December 19, 2018 8:41 AM
Subject: Re: [amsat-bb] Cheap rotator setup
On 12/19/18 10:11 AM, Scott wrote:
> Here's a pic:
>
> https://www.qsl.net/k/k4kdr//images/2016-05-14--xquads.jpg
Excellent back yard!
--- Zach
N0ZGO
_______________________________________________
Sent via AMSAT-BB@?????.???. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 13
Date: Wed, 19 Dec 2018 16:52:50 +0000 (UTC)
From: Ryan Noguchi <ai6do@?????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Cheap rotator setup
Message-ID: <906011614.6774020.1545238370062@????.?????.???>
Content-Type: text/plain; charset=UTF-8
In that picture it looks like the antenna polarization is at 45 degrees,
not the elevation. But the elbows on the cross boom can be set at any angle
you want. I could believe they're at something like 15 degrees, since the
photo was taken from an elevated position. One could also attach the antenna
booms to those 45 degree pipe sections at an angle other than parallel to
the ground. Either or both of those approaches can be taken to get any
elevation angle you need.?
73, Ryan AI6DO
On Wednesday, December 19, 2018, 6:45:10 AM PST, Eli Caul
<eli.caul@?????.???> wrote:
Hi folks -
In my ongoing effort to figure out how to use the SSB satellites, I
duplicated this setup over the weekend:
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and-i
ncludes-free-satellite-tracking-with-pstrotator-and-the-usb-uirt/
I bought a list of materials based on the photograph, and it didn?t occur to
me that the PVC parts pictured put the antennas at approximately 45 degrees
and not the recommended 15 degrees.
Has anyone done this setup? If so, how did you assemble it so that the
antennas ended up at the recommended angle?
There were a couple of higher angle passes yesterday (one was at 50 degrees)
but so far I haven?t been able to 'loop' the satellite. I'm using a Yaesu
FT-991A for uplink and an Airspy SDR on the downlink.
Advice appreciated. So far I've gotten some excellent advice from AMSAT
members and I really appreciate the groups level of expertise and patience
with my fundamental questions.
73 de KK6ZHZ,
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@?????.???.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 13, Issue 427
*****************************************
Read previous mail | Read next mail
| |
