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CX2SA > SATDIG 27.11.16 21:57l 915 Lines 28625 Bytes #999 (0) @ WW
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Sent: 161118/2348Z @:CX2SA.SAL.URY.SOAM #:58357 [Salto] FBB7.00e $:AMSATBB11367
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Info of Chinese Launch 2016-066 (Alan Kung)
2. Re: Info of Chinese Launch 2016-066 (Bryan KL7CN)
3. Re: Info of Chinese Launch 2016-066 (Dani EA4GPZ)
4. Re: Info of Chinese Launch 2016-066 (PE0SAT | Amateur Radio)
5. Symposium pictures (Tom Schuessler)
6. Re: Info of Chinese Launch 2016-066 (Alan Kung)
7. Re: Programming a Kenwood TH-D72A for ISS Digi Contacts
(Les Rayburn)
8. Upcoming ARISS Contact Schedule as of 2016-11-18 08:00 UTC
(AJ9N@xxx.xxxx
9. W1NU SK (rsoifer1@xxx.xxxx
10. G5500 AZ/EL controller Glitching? (Robert Bruninga)
11. Re: G5500 AZ/EL controller Glitching? (KO6TZ Bob)
12. Delayed schedule on AO-73 / FUNcube-1 (Wouter Weggelaar)
13. Re: G5500 AZ/EL controller Glitching? (Robert Bruninga)
14. Fwd: Re: G5500 AZ/EL controller Glitching? (KO6TZ Bob)
----------------------------------------------------------------------
Message: 1
Date: Thu, 17 Nov 2016 11:58:20 +0800 (CST)
From: "Alan Kung" <camsat@xxx.xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Info of Chinese Launch 2016-066
Message-ID: <735bf443.4b06.158706f6e66.Coremail.camsat@xxx.xxx.xxx>
Content-Type: text/plain; charset=GBK
2016-066D
Satellite Name: TY-1
Mission: Technical experiment
TT&C: 437.5MHz Bandwith 300kHz
2016-066E
Satellite Name: CAS-2T(Dream-1)
Mission: Education, Amateur radio, Technical experiment
CW Beacon: 435.710MHz
FM Transponder Uplink: 145.925MHz
FM Transponder Downlink: 435.615MHz
2016-066E
Satellite Name: KS-1Q
Mission: Technical experiment
TT&C: 436.5MHz 20kbps GMSK
2016-066F
Satellite Name: Pegasus-1
Mission: Technical experiment
TT&C: 468.0MHz FSK
73
Alan, BA1DU
Chinese Amateur Satellite Group(CAMSAT)
------------------------------
Message: 2
Date: Wed, 16 Nov 2016 20:32:43 -0800
From: Bryan KL7CN <bryan@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Info of Chinese Launch 2016-066
Message-ID: <60DCDC2A-97C1-4F42-A308-D4F021462620@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Excellent, Alan!
Can you tell us more?
When will these launch?
-- bag
Bryan KL7CN/W6
bryan@xxxxx.xxx
CM98, usually
On Nov 16, 2016, at 19:58, Alan Kung <camsat@xxx.xxx.xxx> wrote:
2016-066D
Satellite Name: TY-1
Mission: Technical experiment
TT&C: 437.5MHz Bandwith 300kHz
2016-066E
Satellite Name: CAS-2T(Dream-1)
Mission: Education, Amateur radio, Technical experiment
CW Beacon: 435.710MHz
FM Transponder Uplink: 145.925MHz
FM Transponder Downlink: 435.615MHz
2016-066E
Satellite Name: KS-1Q
Mission: Technical experiment
TT&C: 436.5MHz 20kbps GMSK
2016-066F
Satellite Name: Pegasus-1
Mission: Technical experiment
TT&C: 468.0MHz FSK
73
Alan, BA1DU
Chinese Amateur Satellite Group(CAMSAT)
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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: Thu, 17 Nov 2016 09:25:59 +0100
From: Dani EA4GPZ <daniel@xxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Info of Chinese Launch 2016-066
Message-ID: <9640ce72-16ec-4dbf-cdee-79c37140593b@xxxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
El 17/11/16 a las 04:58, Alan Kung escribi?:
> 2016-066D
> Satellite Name: TY-1
> Mission: Technical experiment
> TT&C: 437.5MHz Bandwith 300kHz
Hi all,
Has anyone heard this one? Can anyone keep an ear?
I wonder what sort of modulation it uses, since 300kHz is quite wide for
the 70cm (probably excessive, if you ask many people).
73,
Dani EA4GPZ.
------------------------------
Message: 4
Date: Thu, 17 Nov 2016 09:34:20 +0100
From: PE0SAT | Amateur Radio <pe0sat@xxxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Info of Chinese Launch 2016-066
Message-ID: <0c6bf100db76d62e40497edb21c00d3c@xxxxx.xx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Hi Brian,
They are already launched. Here the kepler data from celestrak
tle-new.txt :
2016-066D
1 41844U 16066D 16322.22237288 -.00000070 00000-0 00000+0 0 9995
2 41844 97.4048 326.6901 0014852 260.7199 228.1538 15.21457474 1107
2016-066E
1 41845U 16066E 16321.99208595 -.00000068 00000-0 00000+0 0 9995
2 41845 98.7815 326.5167 0367187 157.7574 204.0013 14.37653650 1001
2016-066F
1 41846U 16066F 16321.78743598 -.00000068 00000-0 00000+0 0 9990
2 41846 98.7853 326.3011 0370412 158.7880 202.9134 14.36772856 971
@xxxxx thanks for the information, good to see there are even two extra
satellites.
TY-1 and Pegasus-1, these are new to me and I will try to receive them
the next
couple of days.
73 Jan PE0SAT
On 17-11-2016 05:32, Bryan KL7CN wrote:
> Excellent, Alan!
>
> Can you tell us more?
>
> When will these launch?
>
> -- bag
>
> Bryan KL7CN/W6
> bryan@xxxxx.xxx
> CM98, usually
>
> On Nov 16, 2016, at 19:58, Alan Kung <camsat@xxx.xxx.xxx> wrote:
>
> 2016-066D
> Satellite Name: TY-1
> Mission: Technical experiment
> TT&C: 437.5MHz Bandwith 300kHz
>
> 2016-066E
> Satellite Name: CAS-2T(Dream-1)
> Mission: Education, Amateur radio, Technical experiment
> CW Beacon: 435.710MHz
> FM Transponder Uplink: 145.925MHz
> FM Transponder Downlink: 435.615MHz
>
> 2016-066E
> Satellite Name: KS-1Q
> Mission: Technical experiment
> TT&C: 436.5MHz 20kbps GMSK
>
> 2016-066F
> Satellite Name: Pegasus-1
> Mission: Technical experiment
> TT&C: 468.0MHz FSK
>
>
> 73
> Alan, BA1DU
> Chinese Amateur Satellite Group(CAMSAT)
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
--
With regards PE0SAT
Internet web-page http://www.pe0sat.vgnet.nl/
DK3WN SatBlog http://www.dk3wn.info/p/
Online Telemetry Forwarder: http://tlm.pe0sat.nl/
irc://chat.freenode.net #Cubesat - Twitter @xxxxxx
------------------------------
Message: 5
Date: Thu, 17 Nov 2016 07:37:01 -0600
From: "Tom Schuessler" <tjschuessler@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Symposium pictures
Message-ID: <001c01d240d7$ae499590$0adcc0b0$@xxx>
Content-Type: text/plain; charset="us-ascii"
If anyone from the AMSAT Symposium cruise has pictures, especially the
antenna gathering on Sunday mornig, please could you post them online and
post a link on the BB? I am doing a presentation to my home club and wanted
a few like that which I did not take myself.
Thanks, 73
Tom, N5hyp at ARRL dot net
------------------------------
Message: 6
Date: Thu, 17 Nov 2016 23:19:41 +0800 (CST)
From: "Alan Kung" <camsat@xxx.xxx.xxx>
To: "Bryan KL7CN" <bryan@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Info of Chinese Launch 2016-066
Message-ID: <f43eaff.13a1e.15872df38e3.Coremail.camsat@xxx.xxx.xxx>
Content-Type: text/plain; charset=GBK
Bryan,
It was launched on 9 Nov at 23:42UTC by CZ-11 solid rocket in JiuQuan
Satellite Launch Center of China.
73
Alan, BA1DU
At 2016-11-17 12:32:43, "Bryan KL7CN" <bryan@xxxxx.xxx> wrote:
>Excellent, Alan!
>
>Can you tell us more?
>
>When will these launch?
>
>-- bag
>
>Bryan KL7CN/W6
>bryan@xxxxx.xxx
>CM98, usually
>
>On Nov 16, 2016, at 19:58, Alan Kung <camsat@xxx.xxx.xxx> wrote:
>
>2016-066D
>Satellite Name: TY-1
>Mission: Technical experiment
>TT&C: 437.5MHz Bandwith 300kHz
>
>2016-066E
>Satellite Name: CAS-2T(Dream-1)
>Mission: Education, Amateur radio, Technical experiment
>CW Beacon: 435.710MHz
>FM Transponder Uplink: 145.925MHz
>FM Transponder Downlink: 435.615MHz
>
>2016-066E
>Satellite Name: KS-1Q
>Mission: Technical experiment
>TT&C: 436.5MHz 20kbps GMSK
>
>2016-066F
>Satellite Name: Pegasus-1
>Mission: Technical experiment
>TT&C: 468.0MHz FSK
>
>
>73
>Alan, BA1DU
>Chinese Amateur Satellite Group(CAMSAT)
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. 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: 7
Date: Thu, 17 Nov 2016 21:52:04 -0600
From: Les Rayburn <les@xxxxxxxxxxxx.xxx>
To: John Brier <johnbrier@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>, Work-Sat@xxxxxxxxxxx.xxx
Subject: Re: [amsat-bb] Programming a Kenwood TH-D72A for ISS Digi
Contacts
Message-ID: <F390D38B-145B-4D5E-BB80-E54593E0A4E9@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Cannot thank you enough John, and many others on the group. Very helpful!
73,
Les N1LF
Les Rayburn, director
High Noon Media Services
130 1st Avenue West
Alabaster, AL 35007-8536
205-621-7500
205-621-7505 FAX
205-253-4867 CELL
highnoonfilm.com
[This message and any attached documents contain information from the sender
that may be confidential and/or privileged. If you are not the intended
recipient please notify the sender immediately by reply e-mail and then
delete this message. Thank you.]
> On Nov 8, 2016, at 4:56 PM, John Brier <johnbrier@xxxxx.xxx> wrote:
>
> You need to store the memories as split frequencies or as the manual
> calls them, "Odd-split Repeater Frequencies." It's in the full
> electronic manual. See page 2 in file 'TH-D72_02_MEMORY CHANNEL_E.pdf'
>
> The basics of it are this. You program a simplex receive frequency
> like normal and then go to the VFO and set the transmit frequency and
> then store it like normal to the same memory channel, except in
> addition to pressing >OK to store it at the final step, you hold down
> the PTT button before hand and while you press >OK.
>
> To compensate for doppler you need to store the following memories:
>
> # Receive Transmit
> 1. 437.560 437.540
> 2. 437.555 437.545
> 3. 437.550 (same, don't set split here)
> 4. 437.545 437.550
> 5. 437.540 437.560
>
> When the bird is coming toward you start at 1. and as the pass
> progresses move towards 5. You should be at 3. at max elevation.
>
> Let me/us know if you have more questions.
>
> 73, John Brier KG4AKV
>
>
> On Tue, Nov 8, 2016 at 5:03 PM, Les Rayburn <les@xxxxxxxxxxxx.xxx> wrote:
>> Just purchased a used Kenwood TH-D72A HT. Hoping to use it along with an
Arrow antenna to make more satellite contacts while traveling. While I
primarily expect to use it to make voice contacts on the FM birds, I?m also
interested in making packet contacts through the International Space Station.
>>
>> Could someone point me towards a programming guide for this type of
application? Any other pointers in using the radio to make packet QSOs
through the ISS?
>>
>> Grateful for all suggestions.
>>
>> 73,
>>
>> Les Rayburn, N1LF
>> 121 Mayfair Park
>> Maylene, AL
>> EM63nf
>>
>> Member WTFDA, IRCA, NRC, ARLL, and AMSAT. Former CPC Chairman for NRC &
IRCA.
>>
>> Elad FDM-S2 SDR, AirSpy SDR, Quantum Phaser, Wellbrook ALA1530 Loop,
Wellbrook Flag, Clifton Labs Active Whip.
>>
>>
>> Grateful as always.
>>
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. 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: Fri, 18 Nov 2016 02:47:25 -0500
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Cc: dweeks@xxxx.xxx.xx.xxx dmoon@xxxx.xxx.xx.xxx wv9o@xxxxxxx.xxxx
davidd@xxxxxxxxxxxxxxx.xxxx dstief@xxxxxxxxxxxxxxxxxxxxxx.xxxx
knkfire@xxxxxxxxx.xxxx stan_mucha@xxxxx.xxxx markabalog@xxx.xxxx
w9uvi@xxxx.xxxx mrcicchetti@xx.xxxx ae9p@xxxx.xxxx
beckyw@xxxxxxxxxxxxxxx.xxxx rkerrigan@xxxxxxxxxxxxxxxxxxxxxx.xxxx
perosky@xxxxxxxxx.xxxx ka4deb@xxxx.xxxx k9byt@xxxxxxx.xxxx
pmotl@xxx.xxxx srothenberg@xxxxxxxxxx.xxx.xx.xxx mark@xxxx.xxxx
k9wwt@xxxxxxxxx.xxxx kerry0464@xxxxxxx.xxxx ke9tc@xxxxxxxxx.xxxx
kf6kee@xxxxx.xxxx Jennifer@xxxxxxxxxxxxxxx.xxxxxxxxxxxxxx@xxxxxxx.xxxx
dmeier@xxxxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2016-11-18
08:00 UTC
Message-ID: <7a50cd.306aa7e.45600c0d@xxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
Upcoming ARISS Contact Schedule as of 2016-11-18 08:00 UTC
Quick list of scheduled contacts and events:
Col?legi Asuncion de Ntra. Sra., Barcelona, Spain, telebridge via W6SRJ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact was successful: Thu 2016-11-17 08:25:19 UTC 40 deg (***)
Private Salesian High School named of St. Dominic Savio, Wroclaw, Poland,
telebridge via W6SRJ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact is a go for: Fri 2016-11-25 11:12:47 UTC 65 deg
****************************************************************************
**
ARISS is always glad to receive listener reports for the above contacts.
ARISS thanks everyone in advance for their assistance. Feel free to send
your reports to aj9n@xxxxx.xxx or aj9n@xxx.xxx.
Listen for the ISS on the downlink of 145.8? MHz.
****************************************************************************
***
All ARISS contacts are made via the Kenwood radio unless otherwise noted.
****************************************************************************
***
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. That has now been changed to
http://www.ariss.org/
Note that there are links to other ARISS websites from this site.
****************************************************************************
Looking for something new to do? How about receiving DATV from the ISS?
If interested, then please go to the ARISS-EU website for complete
details. Look for the buttons indicating Ham Video.
http://www.ariss-eu.org/
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight. Contact Kerry at kbanke@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Satoshi 7M3TJZ with 123
Gaston ON4WF with 121
Francesco IK?WGF with 118
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed and new ones have been added. If there are
additional
ARISS websites I need to know about, please let me know.
Note, all times are approximate. It is recommended that you do your own
orbital prediction or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2016-11-18 08:00 UTC.
(***)
Here you will find a listing of all scheduled school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number of ARISS ISS to earth school events is 1093. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1058. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern
Marianas Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL information may be found at:
http://www.ariss.org/qsl-cards.html
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
****************************************************************************
The successful school list has been updated as of 2016-11-18 08:00 UTC.
(***)
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 49 on orbit
Shane Kimbrough KE5HOD
Andrei Borisenko
Sergey Ryzhikov
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 9
Date: Fri, 18 Nov 2016 08:31:45 -0500
From: rsoifer1@xxx.xxx
To: amsat-bb@xxxxx.xxxx w3ur@xxxx.xxx
Subject: [amsat-bb] W1NU SK
Message-ID: <15877a2c198-2071-7d33@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Through "Silent Keys" in QST, I learned of the passing of Vic Politi, W1NU.
He was 93. Before going into assisted living several years ago, he was on
top of the DXCC Honor Roll. Vic held Satellite DXCC No, 3, earned entirely
via LEO satellites. In 1992, he was AMSAT SKN's first Best Fist winner. RIP.
73 Ray W2RS
Subject:
------------------------------
Message: 10
Date: Fri, 18 Nov 2016 15:28:04 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] G5500 AZ/EL controller Glitching?
Message-ID: <29c571cfce0314588e62f87ee19b2f0f@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
What is the cause of intermittent glitching on the G5500 rotor controller?
Every now and then (and only when transitioning the LEFT switch), BOTH
positioning meters jump down about 10%. And then with a few more flips of
the switch, you can get it back.
Apparently the internal 6v supply is dropping since both meters glitch down
and an externmal voltmeter on the rotator feedback terminals also show the
same10% drop in the 6v line. (though it appears to be a constant 5.5 volts
not 6) And then glitches down from the 5.5.
Also noticed the Adjust voltage pots on the back do not change anything.
Sorry, I know we see these same questions ALL the time, but this is the
first time in 20 years for me? and when Mine wasn?t broke, it was easy to
ignore all the emails?
Bob
------------------------------
Message: 11
Date: Fri, 18 Nov 2016 14:00:35 -0800
From: KO6TZ Bob <my.callsign@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] G5500 AZ/EL controller Glitching?
Message-ID: <4e8c3dac-b767-1b61-b071-e89cc9fe6079@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Bob,
My guess is that since it is only when turning Left, the problem is with
the "bow-tie" or something mechanical in the break that is causing a lot
of drag on the motor when turning left. Try measuring the voltage
between lug 6 & 4 turning left and compare to the voltage between 6 and
5 turning right. I suspect the load or drag is drawing down the
secondary side of the AC transformer, affecting both the feed back
circuits and the drive motor.
Easier said than done, since as you state the issue is intermittent and
the switching action clears the problem.
When you say the voltage pots do not change anything, I suppose you mean
adjusting them does not fix the problem. That is, it is not a dirty pot
issue.
BOB
KO6TZ
Apparently the internal 6v supply is dropping since both meters glitch down
and an externmal voltmeter on the rotator feedback terminals also show the
same10% drop in the 6v line. (though it appears to be a constant 5.5 volts
not 6) And then glitches down from the 5.5.
Also noticed the Adjust voltage pots on the back do not change anything.
------------------------------
Message: 12
Date: Fri, 18 Nov 2016 23:10:58 +0100
From: Wouter Weggelaar <wouterweg@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Delayed schedule on AO-73 / FUNcube-1
Message-ID:
<CAKXf1rE40Q1bfv90g_RMArYLRGrCLT=m6Z8-8GS=QUNYhmD2Vg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi All,
Just to let you know that I have made an error setting up FUNcube for
the weekend, and it is not yet in manual transponder mode.
Please stand by, I will attempt a 1.1 degrees pass for setting it, and
otherwise it will have to be tomorrow morning.
Sorry folks!
Wouter PA3WEG
------------------------------
Message: 13
Date: Fri, 18 Nov 2016 17:21:11 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: KO6TZ Bob <my.callsign@xxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] G5500 AZ/EL controller Glitching?
Message-ID: <a3d4735de35e1dcbc919766de4a0d1ef@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
> When you say the voltage pots do not change anything,
> I suppose you mean adjusting them does not fix the problem.
No, I mean they do not affect either AZ or EL meter reading. Turn pot
end-to-end and meters still correctly read the AZ and EL and an external
voltmeter does not show any change on the We used the full scale pots to
calibrate the system, since the volts adjust pots do nothing..
Further, when the 10% glitch happens, it stays down permanently even with
the motors not turning and no fingers on the switches... until it glitches
back up eventually..
Thanks
Bob
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of KO6TZ Bob
Sent: Friday, November 18, 2016 5:01 PM
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] G5500 AZ/EL controller Glitching?
Bob,
My guess is that since it is only when turning Left, the problem is with
the "bow-tie" or something mechanical in the break that is causing a lot
of drag on the motor when turning left. Try measuring the voltage between
lug 6 & 4 turning left and compare to the voltage between 6 and
5 turning right. I suspect the load or drag is drawing down the secondary
side of the AC transformer, affecting both the feed back circuits and the
drive motor.
Easier said than done, since as you state the issue is intermittent and
the switching action clears the problem.
When you say the voltage pots do not change anything, I suppose you mean
adjusting them does not fix the problem. That is, it is not a dirty pot
issue.
BOB
KO6TZ
Apparently the internal 6v supply is dropping since both meters glitch
down and an externmal voltmeter on the rotator feedback terminals also
show the same10% drop in the 6v line. (though it appears to be a constant
5.5 volts not 6) And then glitches down from the 5.5.
Also noticed the Adjust voltage pots on the back do not change anything.
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Message: 14
Date: Fri, 18 Nov 2016 15:46:03 -0800
From: KO6TZ Bob <my.callsign@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Fwd: Re: G5500 AZ/EL controller Glitching?
Message-ID: <cf148380-cc9c-a2f7-f1f0-4dfc86b03501@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Bob,
The "out voltage adjust" pots are used to calibrate the "external
control" via the DIN jack going to the computer interface. The out
voltage pots will not affect the meter. They will have a major impact on
computer control if you use it.
As you stated, the "Full scale" pots calibrate the meter system.
The next likely cause would be something in the rotor cable shorting or
grounding.
Beyond that, there are too many possibilities for an email.
BOB
KO6TZ
On 11/18/2016 02:21 PM, Robert Bruninga wrote:
>> When you say the voltage pots do not change anything,
>> I suppose you mean adjusting them does not fix the problem.
> No, I mean they do not affect either AZ or EL meter reading. Turn pot
> end-to-end and meters still correctly read the AZ and EL and an external
> voltmeter does not show any change on the We used the full scale pots to
> calibrate the system, since the volts adjust pots do nothing..
>
> Further, when the 10% glitch happens, it stays down permanently even with
> the motors not turning and no fingers on the switches... until it glitches
> back up eventually..
>
> Thanks
> Bob
>
> -----Original Message-----
> From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of KO6TZ Bob
> Sent: Friday, November 18, 2016 5:01 PM
> To:amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] G5500 AZ/EL controller Glitching?
>
> Bob,
>
> My guess is that since it is only when turning Left, the problem is with
> the "bow-tie" or something mechanical in the break that is causing a lot
> of drag on the motor when turning left. Try measuring the voltage between
> lug 6 & 4 turning left and compare to the voltage between 6 and
> 5 turning right. I suspect the load or drag is drawing down the secondary
> side of the AC transformer, affecting both the feed back circuits and the
> drive motor.
>
> Easier said than done, since as you state the issue is intermittent and
> the switching action clears the problem.
>
> When you say the voltage pots do not change anything, I suppose you mean
> adjusting them does not fix the problem. That is, it is not a dirty pot
> issue.
>
> BOB
> KO6TZ
>
>
> Apparently the internal 6v supply is dropping since both meters glitch
> down and an externmal voltmeter on the rotator feedback terminals also
> show the same10% drop in the 6v line. (though it appears to be a constant
> 5.5 volts not 6) And then glitches down from the 5.5.
>
> Also noticed the Adjust voltage pots on the back do not change anything.
>
>
> _______________________________________________
> Sent viaAMSAT-BB@xxxxx.xxx. 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
>
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
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 11, Issue 367
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