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CX2SA > SATDIG 06.01.11 06:18l 897 Lines 30067 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Ham IV rotor problem (D. Craig Fox)
2. AO7 mode B (graham mcphee)
3. Re: Ham IV rotor problem (Jim Jerzycke)
4. Re: Ham IV rotor problem (D. Craig Fox)
5. Re: AO7 mode B (Bob- W7LRD)
6. Re: Ham IV rotor problem (i8cvs)
7. Re: Ham IV rotor problem (Dee)
8. Re: AO7 mode B (Andrew Glasbrenner)
9. HO-68 beacon heard. (Eric Knaps, ON4HF)
10. Re: Ham IV rotor problem (D. Craig Fox)
11. Re: New Turkish 3U cube with amateur two-way payload? (Trevor .)
12. Turkish satellite (Howie DeFelice)
13. Re: Ham IV rotor problem (Scott Armstrong)
14. AO-51 sees solar eclipse was Re: Re: AO7 mode B
(Mark L. Hammond)
15. SatStatus (Andrew Rich)
16. Re: Ham IV rotor problem (H. Vordenbaum)
17. AO-51 Reports--thank you!! (Mark L. Hammond)
18. Re: AO7 mode B (George Henry)
----------------------------------------------------------------------
Message: 1
Date: Wed, 5 Jan 2011 12:26:13 -0800
From: "D. Craig Fox" <DFox@xxxxxx.xxx>
Subject: [amsat-bb] Ham IV rotor problem
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<3D18A6B1AAE35841854398A9AA36CDC8018E5146DC@xxxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="utf-8"
Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire ?net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in
order. I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from ?outside the case? would be greatly
appreciated.
Thanks much.
Craig
N6RSX
NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
------------------------------
Message: 2
Date: Thu, 6 Jan 2011 07:55:13 +1100
From: "graham mcphee" <gemcphee@xxxxxxx.xxx>
Subject: [amsat-bb] AO7 mode B
To: <amsat-bb@xxxxx.xxx>
Message-ID: <5B8FD86420AF4EC3B314A4D2EF170681@xxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
The AO7 switching time seems to have changed, can any one in the control
team shed any light on the subject please
Graham
VK2AYE
------------------------------
Message: 3
Date: Wed, 05 Jan 2011 20:59:24 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "D. Craig Fox" <DFox@xxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <4D24DBAC.4050006@xxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Sounds like the potentiometer inside the rotor housing has died, a
common thing with these rotors.
IIRC, it's a 500 Ohm wire-wound pot, with the winding connected between
pins 3 and 7, and the wiper tied to the ground pin, #1.
You can get a manual for it here:
http://www.hy-gain.com/man/pdf/HAM-IV.pdf
HTH!
Jim
On 01/05/2011 08:26 PM, D. Craig Fox wrote:
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire ?net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in
order. I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from ?outside the case? would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
>
>
> NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
> _______________________________________________
> 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: Wed, 5 Jan 2011 13:06:40 -0800
From: "D. Craig Fox" <DFox@xxxxxx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<3D18A6B1AAE35841854398A9AA36CDC8018E5146DE@xxxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Jim, Scott and Brad,
Thank you all so much for the prompt replies! You have provided the exact
info I need as to diagnostics to perform before doing any "real" work
becomes necessary!
Thanks again and I will update you when the problem has been pinned down.
Best 73s
Craig
N6RSX
From: Scott Armstrong [mailto:em12pt@xxxxxxx.xxxx
Sent: Wednesday, January 05, 2011 1:02 PM
To: D. Craig Fox; amsat-bb@xxxxx.xxx
Subject: RE: [amsat-bb] Ham IV rotor problem
Hi Craig,
I've attached a copy of the HamIV manual. Let me know if you get it OK. It
has some troubleshooting info towards the back.
>From your problem description, my bet is that the sweeper arm on the
potentiometer inside the rotor is no longer making contact. I've had several
wear out over the years.
Of course, this is the worse case scenario requiring the rotor to be removed
and disassembled.
However, you might get lucky and find something in the control box power
supply has failed or an open/intermittent in the cable between the control
box and rotor.
Good Luck,
Scott AA5AM
> From: DFox@xxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Wed, 5 Jan 2011 12:26:13 -0800
> Subject: [amsat-bb] Ham IV rotor problem
>
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire 'net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in order.
I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from "outside the case" would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
>
>
> NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
> _______________________________________________
> 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: Wed, 5 Jan 2011 21:15:44 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AO7 mode B
To: graham mcphee <gemcphee@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<919027943.752733.1294262144080.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxxx
xx.xxx>
Content-Type: text/plain; charset=utf-8
Graham
>From what I understand, and I could be wrong.? AO-7 has a mind of it's
own.? The last time I check a week or so ago the switch over was about
2321Z.? I am greatful for every QSO with that old bucket of bolts.? Like a
timex watch, "it takes a licking, but keeps on ticking".
73 Bob W7LRD
Seattle
.? ----- Original Message -----
From: "graham mcphee" <gemcphee@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Wednesday, January 5, 2011 12:55:13 PM
Subject: [amsat-bb] ?AO7 mode B
The AO7 switching time seems to have changed, can any one in the control
team shed any light on the subject please
Graham
VK2AYE
_______________________________________________
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: 6
Date: Wed, 5 Jan 2011 22:16:36 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "D. Craig Fox" <DFox@xxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <001a01cbad1d$d683a680$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="utf-8"
----- Original Message -----
From: "D. Craig Fox" <DFox@xxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, January 05, 2011 9:26 PM
Subject: [amsat-bb] Ham IV rotor problem
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire ?net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in
order. I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from ?outside the case? would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
Hi Craig, N6RSK
If the needle of the potentiometer just stopped moving while turning the
antennas il means that the spring inside the motor hood is loosing contact
between the needle and the motor hood so that you must tear down the rotor
and open the hood to repait the spring:
73" de
i8CVS Domenico
------------------------------
Message: 7
Date: Wed, 05 Jan 2011 16:17:57 -0500
From: Dee <morsesat@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "'Jim Jerzycke'" <kq6ea@xxxxxxx.xxx>, "'D. Craig Fox'"
<DFox@xxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <3DD90499EBA94CA2A12C9D1A708C8640@xxxxxxxx>
Content-Type: text/plain; charset=us-ascii
Test it with an external 500 ohm pot with clip leads to the indicator and
then at the rotor end before disassembly. If this has been up for a while,
check your cabling. Mine has been up a while and I have to replace
it(cable) going to my main HF beam. Good luck and let the BB know what you
found ...! Sometimes, we think someone fell off a tower and never hear
about a successful repair...(HA!) Wear a climbing belt, please!!
73,
Dee, NB2F
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Jim Jerzycke
Sent: Wednesday, January 05, 2011 3:59 PM
To: D. Craig Fox
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Ham IV rotor problem
Sounds like the potentiometer inside the rotor housing has died, a common
thing with these rotors.
IIRC, it's a 500 Ohm wire-wound pot, with the winding connected between pins
3 and 7, and the wiper tied to the ground pin, #1.
You can get a manual for it here:
http://www.hy-gain.com/man/pdf/HAM-IV.pdf
HTH!
Jim
On 01/05/2011 08:26 PM, D. Craig Fox wrote:
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire 'net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in
order. I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from "outside the case" would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
>
>
> NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
> _______________________________________________
> 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: 8
Date: Wed, 5 Jan 2011 16:22:44 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO7 mode B
To: graham mcphee <gemcphee@xxxxxxx.xxx>
Cc: "<amsat-bb@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>
Message-ID: <E25D493E-4203-4DE2-BFC2-7F5EE5C54417@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
It's hard to say for sure, but generally any significant drop in power from
the panels can cause the timer to reset. This could be from a too strong
uplink, a partial or full regular orbital eclipse, or even from passing
through the shadow of a solar eclipse. We just recently recorded the effect
of AO-51 passing through the recent partial solar eclipse over EU. I'll have
to look to see if the shift occurred coincident to that on AO-7 or not.
73, Drew KO4Ma
Sent from my iPhone
On Jan 5, 2011, at 3:55 PM, "graham mcphee" <gemcphee@xxxxxxx.xxx> wrote:
> The AO7 switching time seems to have changed, can any one in the control
> team shed any light on the subject please
> Graham
> VK2AYE
>
> _______________________________________________
> 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: 9
Date: Wed, 05 Jan 2011 22:26:50 +0100
From: "Eric Knaps, ON4HF" <on4hf@xxxxxxx.xx>
Subject: [amsat-bb] HO-68 beacon heard.
To: amsat-bb@xxxxx.xxx
Message-ID: <4D24E21A.1040806@xxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello Group,
I am hearing the HO-68 beacon strong while writing this ( 21:25 utc)
I have seen reports here that the bird was not heard for a while, I
guess it's still out there.
Only no transponder active.
73
Eric.
--
Amateur Radio Station ON4HF
Eric Knaps
Satellite manager UBA
Tel. +32472985876 (mobile)
http://www.on4hf.be
------------------------------
Message: 10
Date: Wed, 5 Jan 2011 13:32:00 -0800
From: "D. Craig Fox" <DFox@xxxxxx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "'Dee'" <morsesat@xxxxxxxxx.xxx>, "'Jim Jerzycke'"
<kq6ea@xxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<3D18A6B1AAE35841854398A9AA36CDC8018E5146E1@xxxxxxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Thanks again to all for the useful suggestions.
LRD- I hope you are wrong! hi
I will report back.
73s
Craig
N6RSX
NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
------------------------------
Message: 11
Date: Wed, 5 Jan 2011 21:41:58 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Re: New Turkish 3U cube with amateur two-way
payload?
To: amsat-bb@xxxxx.xxx
Message-ID: <150432.72781.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Looks promising.
Turkeys first home-made Amateur Radio satellite was ITU-pSat on 437.325 CW.
But I guess this new sat would be the first "first home-made communications
test satellite" if it carried an FM or hopefully a Linear Transponder.
Which-ever it is I wish them well with the project.
As you comment the picture is rubbish but I guess it's what you expect from
the press if they had a story but no picture to go with it. Someone would be
pressured to create a picture, any picture, in a hurry.
73 Trevor M5AKA
--- On Wed, 5/1/11, Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx> wrote:
> From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
> Subject: [amsat-bb] New Turkish 3U cube with amateur two-way payload?
> To: "amsat-bb" <amsat-bb@xxxxx.xxx>
> Date: Wednesday, 5 January, 2011, 17:24
>
http://www.spacedaily.com/reports/Turkey_To_Launch_First_Home_Made_Communicati
ons_Test_Satellite_999.html
>
> Ignoring that silly drawing, has anyone heard about this
> before now?
>
> 73, Drew KO4MA
>
>
> _______________________________________________
> 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: Wed, 5 Jan 2011 17:15:52 -0500
From: Howie DeFelice <howied231@xxxxxxx.xxx>
Subject: [amsat-bb] Turkish satellite
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU157-w51A89ECA956E46D9559AE7E7090@xxx.xxx>
Content-Type: text/plain; charset="Windows-1252"
A similar report showed up recently on the Satellite Today report:
[Satellite TODAY 12-29-10] Turkey plans to send 3USAT, the nation?s first
homemade communications test satellite, into orbit in September, satellite
communications operatorTurksat announced Dec. 28.
The satellite, under development at the Istanbul Technical University,
is part of a Turksat program to manufacture Turkey's first communications
satellite by 2015.
?The satellite will provide wireless voice transmission over an amateur
band between two groups of people at two distant locations. Next month, we
will announce where the new satellite will be launched from,? Istanbul
Technical University Professor Alim Rustem Aslan said in a statement.
India placed Turkey's first homemade cubic satellite into orbit in
September 2009.
HowieAB2S
------------------------------
Message: 13
Date: Wed, 5 Jan 2011 15:01:45 -0600
From: Scott Armstrong <em12pt@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: <dfox@xxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <COL116-W22A8E94FC1726B75F484C7C0090@xxx.xxx>
Content-Type: text/plain; charset="windows-1252"
Hi Craig,
I've attached a copy of the HamIV manual. Let me know if you get it OK. It
has some troubleshooting info towards the back.
>From your problem description, my bet is that the sweeper arm on the
potentiometer inside the rotor is no longer making contact. I've had several
wear out over the years.
Of course, this is the worse case scenario requiring the rotor to be removed
and disassembled.
However, you might get lucky and find something in the control box power
supply has failed or an open/intermittent in the cable between the control
box and rotor.
Good Luck,
Scott AA5AM
> From: DFox@xxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Wed, 5 Jan 2011 12:26:13 -0800
> Subject: [amsat-bb] Ham IV rotor problem
>
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire ?net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in order.
I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from ?outside the case? would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
>
>
> NOTICE: This communication may contain privileged or other confidential
information. If you are not the intended recipient of this communication, or
an employee or agent responsible for delivering this communication to the
intended recipient, please advise the sender by reply email and immediately
delete the message and any attachments without copying or disclosing the
contents. Thank you.
> _______________________________________________
> 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: 14
Date: Wed, 05 Jan 2011 19:40:58 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] AO-51 sees solar eclipse was Re: Re: AO7 mode B
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>, graham mcphee
<gemcphee@xxxxxxx.xxx>, amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID: <s0h11f00556cfur050h3V2@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Yes, check this image out:
http://www.amsat.org/amsat/ftp/telemetry/ao51/2011WOD/Jan2011/Wd010300_during_
solar_eclipse2.pdf
You can see the normal eclipses of AO-51 every 100 mins (just over 14 times
each day). Now, look right in the middle--see what is a double dip?? That
a normal eclipse AND an extra one from the partial solar eclipse!
Neat to see in telemetry...actually, look closer and you'll see there were
around 2 or 3 double dips...peak eclipse was just before 0900utc that day,
and that's where the biggest drop was observed.
Anyhow, FYI :)
73!
Mark N8MH
At 04:22 PM 1/5/2011 -0500, Andrew Glasbrenner wrote:
>It's hard to say for sure, but generally any significant drop in power from
the panels can cause the timer to reset. This could be from a too strong
uplink, a partial or full regular orbital eclipse, or even from passing
through the shadow of a solar eclipse. We just recently recorded the effect
of AO-51 passing through the recent partial solar eclipse over EU. I'll have
to look to see if the shift occurred coincident to that on AO-7 or not.
>
>73, Drew KO4Ma
>Sent from my iPhone
>
>On Jan 5, 2011, at 3:55 PM, "graham mcphee" <gemcphee@xxxxxxx.xxx> wrote:
>
>> The AO7 switching time seems to have changed, can any one in the control
>> team shed any light on the subject please
>> Graham
>> VK2AYE
>>
>> _______________________________________________
>> 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
Mark L. Hammond [N8MH]
------------------------------
Message: 15
Date: Thu, 6 Jan 2011 10:45:12 +1000
From: "Andrew Rich" <vk4tec@xxxxxxxxxxxxx.xxx>
Subject: [amsat-bb] SatStatus
To: <amsat-bb@xxxxx.xxx>
Message-ID: <4DE1132A57E84E2982EA53DB2DC7BD0C@xxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
A while back I created a web page called sat status
It could take sat reports from people and also from APRS streams
I am thinking of re-instating this
It had a dash board, an APRS data stream also made entries (from ISS) from
example.
I have also know worked out a simple chat server
Interested ?
- Andrew -
------------------------------
Message: 16
Date: Wed, 5 Jan 2011 19:36:07 -0600
From: "H. Vordenbaum" <tower2@xxx.xx.xxx>
Subject: [amsat-bb] Re: Ham IV rotor problem
To: "'Scott Armstrong'" <em12pt@xxxxxxx.xxx>, <dfox@xxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Message-ID:
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I had the wiper arm actually break off once years ago.
73, K5HV
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Scott Armstrong
Sent: Wednesday, January 05, 2011 15:02 PM
To: dfox@xxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Ham IV rotor problem
Hi Craig,
I've attached a copy of the HamIV manual. Let me know if you get it OK. It
has some troubleshooting info towards the back.
>From your problem description, my bet is that the sweeper arm on the
potentiometer inside the rotor is no longer making contact. I've had several
wear out over the years.
Of course, this is the worse case scenario requiring the rotor to be removed
and disassembled.
However, you might get lucky and find something in the control box power
supply has failed or an open/intermittent in the cable between the control
box and rotor.
Good Luck,
Scott AA5AM
> From: DFox@xxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Wed, 5 Jan 2011 12:26:13 -0800
> Subject: [amsat-bb] Ham IV rotor problem
>
> Greetings and happy new year to my fellow sat-ops. I thought I would try
here before searching the entire 'net, for some tips in trouble shooting a
rotor problem. My up/down link sat antennas are mounted on a common boom,
fixed el., above my HF yagi. I turn all of it with a very old Ham IV rotor
and the original CDE controller. Here is the problem. The rotor turns fine,
but there is no readout of direction. This first began to occur
intermittently, then finally the needle just stopped moving while turning
the antennas. I have checked the wiring at both ends and all seems in order.
I am really hoping to avoid having to tear down the rotor, so any
suggestions on trouble shooting from "outside the case" would be greatly
appreciated.
> Thanks much.
>
> Craig
> N6RSX
>
>
>
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------------------------------
Message: 17
Date: Wed, 05 Jan 2011 20:46:25 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] AO-51 Reports--thank you!!
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID: <s1mT1f00H56cfur051mVb5@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Thank you all for the increased frequency of reporting on
http://oscar.dcarr.org/ . It is very helpful!
Your continued support is appreciated...
73,
Mark L. Hammond [N8MH]
------------------------------
Message: 18
Date: Wed, 5 Jan 2011 23:03:26 -0600
From: "George Henry" <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: AO7 mode B
To: "amsat bb" <amsat-bb@xxxxx.xxx>
Message-ID: <2DE0C1078AC6497C81C4B685B3682B67@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
And Lord knows, there are a couple of "regulars" on there that ALWAYS uplink
with way too much power, causing the AGC to "pump" on everyone else's
signal....
George, KA3HSW
----- Original Message -----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "graham mcphee" <gemcphee@xxxxxxx.xxx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, January 05, 2011 3:22 PM
Subject: [amsat-bb] Re: AO7 mode B
> It's hard to say for sure, but generally any significant drop in power
> from the panels can cause the timer to reset. This could be from a too
> strong uplink, a partial or full regular orbital eclipse, or even from
> passing through the shadow of a solar eclipse. We just recently recorded
> the effect of AO-51 passing through the recent partial solar eclipse over
> EU. I'll have to look to see if the shift occurred coincident to that on
> AO-7 or not.
>
> 73, Drew KO4Ma
> Sent from my iPhone
>
------------------------------
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End of AMSAT-BB Digest, Vol 6, Issue 11
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