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CX2SA > SATDIG 22.05.13 20:49l 1219 Lines 46019 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: A viable FD satellite operation (Rolf Krogstad)
2. Re: A viable FD satellite operation (Rolf Krogstad)
3. AO7 Eclipse Cycle (K4FEG)
4. Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas (Jeff Griffin)
5. Re: Amateur Satellites and the emergency (Raydel Abreu Espinet)
6. Re: LVB 5400 rotor control problem (John Price)
7. Re: A viable FD satellite operation (Jim Jerzycke)
8. Fw: Amateur Satellites and the emergency (i8cvs)
----------------------------------------------------------------------
Message: 1
Date: Wed, 22 May 2013 06:37:10 -0500
From: Rolf Krogstad <rolf.krogstad@xxxxx.xxx>
To: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx Bill W1PA <w1pa@xxxxxxx.xxx>
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID:
<CAJJyj=aZL=MeL0GxRws9Z0AyPP6=WW0S7Y+Aj+WF_S2QnAQgdg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Jim makes a good point. Know where the points of the compass are.
And, depending on where you are located, that is not as simple as just
taking out a compass.
It can make a fair amount of difference if you are in the western states of
the US and not so much, if any, if you are in some place like Pensacola,
Florida.
NOAA has a calculator: http://www.ngdc.noaa.gov/geomag-web/#declination
73
Rolf NR0T
EN34
Amsat-NA #38889
On Tue, May 21, 2013 at 11:39 PM, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
> You're definitely approaching it in the right way, Bill!
>
> An FT-847 is an excellent satellite rig, and in combination with a small
> gain antenna, will be an excellent station.
>
> The 50 Watts the '847 provides is more than enough RF power, even with the
> Arrow, or similar Elk, antenna.
>
> A preamps are highly recommended, especially with a smaller antenna.
>
> Use a diplexer "in reverse" to help get rid of desense. It's more
> important than you'd think.
>
>
http://www.amsat.org/amsat-**new/articles/Mode-J/<http://www.amsat.org/amsat-n
ew/articles/Mode-J/>
>
> A few other tips to help you.......
>
> If you're going to be running tracking software, like SatPC32, make SURE
> your PC has the correct time set!
>
> An error of 10~15 seconds may not sound like much, but it can cause you
> point your antennas wrong, and ruin a pass.
>
> Same with your Lat/Lon. I use a GPS, which also supplies an accurate clock
> to the laptop, but a lot of people get by with just using grid squares.
>
> Know precisely *WHERE* North, South. East, and West are at your station
> location.
>
> You'd be surprised how many people don't, and then can't find the sats as
> they come up over the horizon.
>
> Have a helper to point the antenna, as you'll be busy doing the "Doppler
> Dance".
>
> Again, if you run SatPC32, the Doppler correction is fed to the rig, and
> it's one less manual operation to split your limited time amongst.
>
> Keep the TenTec on the shelf, in the collection.
>
> And as somebody else pointed out, get started setting up and practicing
> NOW!!
>
> If you wait until Field Day weekend, you'll wind up extremely frustrated,
> with few or no contacts!
>
> I know, as I used to do it that way every year. I think the best I ever
> got was three contacts one year.
>
> The next year I started two months early, and I made THIRTY FIVE contacts
> that year, just because:
>
> I didn't forget anything at home, requiring numerous unnecessary trips
> back and forth (I also bought some Tupperware tubs to keep all the
> satellite stuff in!)
>
> Everything worked because I had six weekends to practice setting up and
> operating before Field Day, ensuring all the bugs were worked out
>
> I was a lot more comfortable using the station because I knew it all
> worked, and the stress level was much lower.
>
> Good luck, get going, and listen for K6AA on Field Day, and KQ6EA the
> weeks before while I'm practicing!
>
> 73, Jim KQ6EA
>
>
>
> On 05/21/2013 08:09 PM, Bill W1PA wrote:
>
>> I may set up a Field Day satellite station for our local club. I haven't
>> done
>> this in a while.... my last experience with a non-FM bird was AO-40.
>>
>> I'd like to avoid the futility of the FM LEO's on FD, and look to the
>> working passband birds, which I understand are AO-7, FO-29, and VO-52.
>>
>> I have at my disposal a FT-847, an Arrow satellite antenna (V/U), and if
>> needed,
>> various preamps and poweramps for 2m and 432, as well as antennas with
>> more elements.
>>
>> I also have a Ten Tec 2510 satellite unit that does not have the "extra
>> crystal board",
>> which I understand makes it a non-starter for the 3 birds I mentioned.
>>
>> For those of you experienced with the bandpass birds, assuming an outdoor,
>> clear sky access location, what should I bring? (i.e. will the FT-847
>> stock amp be sufficient?
>> How many elements do I need for uplink? pre-amp for downlink? etc)
>>
>> I also may only be able to work overnight (in darkness) -- that rules out
>> AO-7, correct?
>>
>> Bill W1PA
>> ______________________________**_________________
>> 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<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<http://amsat.org/mailman/listinfo
/amsat-bb>
>
------------------------------
Message: 2
Date: Wed, 22 May 2013 06:39:01 -0500
From: Rolf Krogstad <rolf.krogstad@xxxxx.xxx>
To: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx Bill W1PA <w1pa@xxxxxxx.xxx>
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID:
<CAJJyj=bh+cGXCXuJJmEvGQsiQbENXmHW330Wa9QZcPP3i=5LEw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Sorry, I forgot to say it makes a difference because of Magnetic
Declination - the difference between magnetic north and true north.
On Wed, May 22, 2013 at 6:37 AM, Rolf Krogstad <rolf.krogstad@xxxxx.xxx>wrote:
> Jim makes a good point. Know where the points of the compass are.
>
> And, depending on where you are located, that is not as simple as just
> taking out a compass.
> It can make a fair amount of difference if you are in the western states
> of the US and not so much, if any, if you are in some place like Pensacola,
> Florida.
>
> NOAA has a calculator: http://www.ngdc.noaa.gov/geomag-web/#declination
>
> 73
> Rolf NR0T
> EN34
> Amsat-NA #38889
>
>
> On Tue, May 21, 2013 at 11:39 PM, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
>
>> You're definitely approaching it in the right way, Bill!
>>
>> An FT-847 is an excellent satellite rig, and in combination with a small
>> gain antenna, will be an excellent station.
>>
>> The 50 Watts the '847 provides is more than enough RF power, even with
>> the Arrow, or similar Elk, antenna.
>>
>> A preamps are highly recommended, especially with a smaller antenna.
>>
>> Use a diplexer "in reverse" to help get rid of desense. It's more
>> important than you'd think.
>>
>>
http://www.amsat.org/amsat-**new/articles/Mode-J/<http://www.amsat.org/amsat-n
ew/articles/Mode-J/>
>>
>> A few other tips to help you.......
>>
>> If you're going to be running tracking software, like SatPC32, make SURE
>> your PC has the correct time set!
>>
>> An error of 10~15 seconds may not sound like much, but it can cause you
>> point your antennas wrong, and ruin a pass.
>>
>> Same with your Lat/Lon. I use a GPS, which also supplies an accurate
>> clock to the laptop, but a lot of people get by with just using grid
>> squares.
>>
>> Know precisely *WHERE* North, South. East, and West are at your station
>> location.
>>
>> You'd be surprised how many people don't, and then can't find the sats as
>> they come up over the horizon.
>>
>> Have a helper to point the antenna, as you'll be busy doing the "Doppler
>> Dance".
>>
>> Again, if you run SatPC32, the Doppler correction is fed to the rig, and
>> it's one less manual operation to split your limited time amongst.
>>
>> Keep the TenTec on the shelf, in the collection.
>>
>> And as somebody else pointed out, get started setting up and practicing
>> NOW!!
>>
>> If you wait until Field Day weekend, you'll wind up extremely frustrated,
>> with few or no contacts!
>>
>> I know, as I used to do it that way every year. I think the best I ever
>> got was three contacts one year.
>>
>> The next year I started two months early, and I made THIRTY FIVE contacts
>> that year, just because:
>>
>> I didn't forget anything at home, requiring numerous unnecessary trips
>> back and forth (I also bought some Tupperware tubs to keep all the
>> satellite stuff in!)
>>
>> Everything worked because I had six weekends to practice setting up and
>> operating before Field Day, ensuring all the bugs were worked out
>>
>> I was a lot more comfortable using the station because I knew it all
>> worked, and the stress level was much lower.
>>
>> Good luck, get going, and listen for K6AA on Field Day, and KQ6EA the
>> weeks before while I'm practicing!
>>
>> 73, Jim KQ6EA
>>
>>
>>
>> On 05/21/2013 08:09 PM, Bill W1PA wrote:
>>
>>> I may set up a Field Day satellite station for our local club. I haven't
>>> done
>>> this in a while.... my last experience with a non-FM bird was AO-40.
>>>
>>> I'd like to avoid the futility of the FM LEO's on FD, and look to the
>>> working passband birds, which I understand are AO-7, FO-29, and VO-52.
>>>
>>> I have at my disposal a FT-847, an Arrow satellite antenna (V/U), and if
>>> needed,
>>> various preamps and poweramps for 2m and 432, as well as antennas with
>>> more elements.
>>>
>>> I also have a Ten Tec 2510 satellite unit that does not have the "extra
>>> crystal board",
>>> which I understand makes it a non-starter for the 3 birds I mentioned.
>>>
>>> For those of you experienced with the bandpass birds, assuming an
>>> outdoor,
>>> clear sky access location, what should I bring? (i.e. will the FT-847
>>> stock amp be sufficient?
>>> How many elements do I need for uplink? pre-amp for downlink? etc)
>>>
>>> I also may only be able to work overnight (in darkness) -- that rules
>>> out AO-7, correct?
>>>
>>> Bill W1PA
>>> ______________________________**_________________
>>> 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<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<http://amsat.org/mailman/listinfo
/amsat-bb>
>>
>
>
------------------------------
Message: 3
Date: Wed, 22 May 2013 07:32:32 -0500
From: K4FEG <K4FEG@xxxxx.xxx>
To: starcom-bb@xxxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO7 Eclipse Cycle
Message-ID: <519CBAE0.8040408@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
AO7 is in Mode B and is giving every indication, from reports around the
globe, to being in the Eclipse Cycle while over Antarctica.
The software being used by those predicting the eclipse periods are Nova
and SatPC32, both seem to be very accurate and predicted the start of
the eclipse cycle very closely.
If the predictions are correct, we will have daily eclipses while the
satellite passes over Antarctica and based on other information that I
have received, the satellite will, by default, power up in Mode B after
the "Zero Voltage State" occurs during the eclipse.
I plan to continue to monitor the Mode status daily and look for any
variables that might happen with the satellite. Last year we seemed to
have had distortion issues for a period during the time when we were in
the Eclipse Cycle. I have no idea if, or even if it is possible, that
the Eclipse Cycle was causing any of the audio distortions that were
noticed last year during the Eclipse Cycle.
I hope with closer observation, this year we can follow any changes in
the satellite functions and see how they relate to the total loss of
power on the satellite as it travels through the eclipse periods.
If anyone has any suggestions for things to watch for, or if there are
other things to monitor, that might give us a better understanding of
how the satellite is functioning, please feel free to comment. I think
we have actually caught the beginning of the Eclipse Cycle this year and
I think we will be able to see how long it will last and if it is having
any effect on the "health" of the satellite.
73 ALL FRM
K4FEG
STARCOM BB/STAR-COM.NET
QTH: EM55aj84ta
------------------------------
Message: 4
Date: Wed, 22 May 2013 08:36:36 -0400
From: "Jeff Griffin" <kb2m@xxxxxxx.xxx>
To: "'i8cvs'" <domenico.i8cvs@xxx.xx>, "'AMSAT-BB'"
<amsat-bb@xxxxx.xxx>, "'M5AKA'" <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornado in Oklahoma and Texas
Message-ID: <001501ce56e9$001555d0$00400170$@xxx>
Content-Type: text/plain; charset="us-ascii"
I remember at least two times the LEO's were used for emergencies, on one
occasion, I actually transferred some health and welfare traffic. The one I
participated in was during the bad ice storms along the northeast coast
during the winter of (1998 ?). I personally forwarded health and welfare
traffic from two Canadian satellite stations who were in an area where there
was no electricity for over a month. As poor HF propagation and marginal
portable antennas weren't getting out the only way to communicate was via
the LEO FM birds. I remember passing information via AO-27 at least twice. I
also remember the difficulty of getting out the information that the
satellite was being used for an emergency :-) . The second occasion(as
noted, in another post) was during the Pacific Tsunami disaster (around
2004?) it was proposed that the store and forward digital PACSAT's were to
be used to pass health and welfare traffic out of some islands in the
Pacific Ocean that were devastated by the Tsunami. If one was to search the
AMSAT archives there were threads started both times.
73 Jeff kb2m
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of i8cvs
Sent: Tuesday, May 21, 2013 8:02 PM
To: AMSAT-BB; M5AKA
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas
Hi Trevor, M5AKA
I agree with you.
I remember that only the HEO satellites OSCAR-10,OSCAR-13 and AO40 were used
during the emergency when necessary.
My opinion is that we satellite operators we are not actually organized to
use the LEO Amateur Satellites during the emergencies so that we only
collect grids and QSL's with them as well we receive only telemetry.
I'm also not aware of any LEO amateur satellite having ever been used for
Emergency Communications but read please the following address of AMSAT and
you will surprised to read that even the LEO Amateur Satellites are built by
AMSAT to provide communications during emergencies and calamities.
http://www.amsat.org/amsat-new/satellites/sat_summary/hamsat.php
VO-52 is India's contribution to the international community of Amateur
Radio Operators.
This satellite will play a valuable role in the national and international
scenario by providing a low cost readily accessible and reliable means of
communications during emergencies and calamities like floods , earthquakes
etc.
73" de
i8CVS Domenico
----- Original Message -----
From: "M5AKA" <m5aka@xxxxx.xx.xx>
To: "i8cvs" <domenico.i8cvs@xxx.xx>
Sent: Tuesday, May 21, 2013 10:14 AM
Subject: Re: Amateur Satellites and the emergency on tornado in Oklahoma and
Texas
Hi Dominic,
An interesting question. I'm not aware of any amateur satellite having ever
been used for Emergency Communications, do you know of any ?
Yes announcements were made that amateur satellites were available for
emergency communications in both the 2004 Indian Ocean Tsunami and the 2011
Japanese Tsunami but as far as I'm aware they were never actually used.
I think the problem is two fold:
1) The lack of satellite operators, only one to two thousand world-wide
2) The initial complexity of satellite operating e.g. Doppler, Tracking,
which means those without satellite experience cannot rapidly pick it up
when an emergency strikes.
A 100 watt HF station with a dipole on 40m is far easier to set up in an
emergency and will give you a range comparable with satellites and freedom
from the restriction of a 15 minute pass time.
73 Trevor M5AKA
--- On Tue, 21/5/13, i8cvs <domenico.i8cvs@xxx.xx> wrote:
> Date: Tuesday, 21 May, 2013, 4:35
> Hi All,
>
> I am interested to know if someone in BB has used or is using the
> actual Amateur Satellites during the emergency occurred in Oklahoma
> and Texas because of the actual tornado's.
>
> We know from TV that almost 50 peoples died and if the Amateur
> Satellites were used with success that will be a useful opportunity to
> demonstrate worldwide to the autorities that our satellites are useful
> and necessary during the emergency.
>
> The call letters of the Amateurs partecipating as well the FM and
> linear Amateur Satellites used to help into the emergency will be
> appreciated.
>
> Thanks for any info.
>
> 73" de
>
> i8CVS Domenico
> _______________________________________________
> 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: 5
Date: Wed, 22 May 2013 10:17:51 -0400 (CDT)
From: Raydel Abreu Espinet <cm2esp@xxxxxx.xx.xx>
To: Jeff Griffin <kb2m@xxxxxxx.xxx>
Cc: 'AMSAT-BB' <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency
Message-ID:
<32408811.1516220.1369232271513.JavaMail.root@xxxxxx.xx.xx>
Content-Type: text/plain; charset=utf-8
Hello,
About the topic of satellites and emergencies I think satellites are an
option very important to consider when there is no more available. In case
of HF propagation blackouts or poor conditions and when local VHF and UHF
repeaters fails, satellites can bring help, specially from light weight
battery run portable stations.
Here in Cuba we do every year an emergency rehearsal exercise named
"Meteoro" which is organized by Cuba's Civil Defense to simulate
catastrophes and other actions relevant to the upcoming hurricane season.
This weekend (May 18th and 19th) was held the 2013 Exercise, like always
Cuban Ham Radio Operators are invited to participate as an important asset
during emergencies. But by first time ever on the Civil Defense National
Headquarters were is installed amateur station CO9DCN we do a short and
simple satellite demonstration to the Civil Defense authorities.
The short demo was just a simple "hello" exchanged between CO6CBF (Hector)
in Cienfuegos Province and CM2ESP/Portable (Raydel) in the Headquarter's
backyard. Hector had done previous years demos for his province's civil
defense authorities, but this was the first time a demo was done at the
National Civil Defense Headquarters. As HF propagation was terribly bad that
day due to the recent solar flares the Civil Defense Authorities were very
pleased with our short demo proving that satellites can be an alternative
when ground and ionospheric propagation are disrupted.
The Press publish a short report about the amateur radio importance on
emergencies and there is also a short mention in paragraph three of the very
first satellite contact.
The news report can be found here:
http://www.ain.cu/2013/mayo/19ya-meteoro_reduccion_desastres.htm
It is in spanish only, but google translator works fine:
http://translate.google.com.cu/translate?hl=es&sl=es&tl=en&u=www.ain.cu%2F2013
%2Fmayo%2F19ya-meteoro_reduccion_desastres.htm
On the picture featured on the news report from the Cuban News Agency you
can see CO9DCN Club Station (Defensa Civil Nacional - National Civil
Defense) being operated by CO2OT in digital modes and CO2JC in voice
communications. The satellite demo was done portable on the backyard on
Sunday at 14:10 UTC during a SO-50 pass, the press arrived one hour after
the satellite pass so unfortunately there is no photo available.
73,
Raydel, CM2ESP
GROS Coordinator
---
PS: GROS is the Cuban Satellite Group.
----- Mensaje original -----
De: Jeff Griffin <kb2m@xxxxxxx.xxx>
Para: 'i8cvs' <domenico.i8cvs@xxx.xx>, 'AMSAT-BB' <amsat-bb@xxxxx.xxx>,
'M5AKA' <m5aka@xxxxx.xx.xx>
Enviado: Wed, 22 May 2013 08:36:36 -0400 (CDT)
Asunto: [amsat-bb] Re: Amateur Satellites and the emergency on
tornado in Oklahoma and Texas
I remember at least two times the LEO's were used for emergencies, on one
occasion, I actually transferred some health and welfare traffic. The one I
participated in was during the bad ice storms along the northeast coast
during the winter of (1998 ?). I personally forwarded health and welfare
traffic from two Canadian satellite stations who were in an area where there
was no electricity for over a month. As poor HF propagation and marginal
portable antennas weren't getting out the only way to communicate was via
the LEO FM birds. I remember passing information via AO-27 at least twice. I
also remember the difficulty of getting out the information that the
satellite was being used for an emergency :-) . The second occasion(as
noted, in another post) was during the Pacific Tsunami disaster (around
2004?) it was proposed that the store and forward digital PACSAT's were to
be used to pass health and welfare traffic out of some islands in the
Pacific Ocean that were devastated by the Tsunami. If one was to search the
AMSAT archives there were threads started both times.
73 Jeff kb2m
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of i8cvs
Sent: Tuesday, May 21, 2013 8:02 PM
To: AMSAT-BB; M5AKA
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas
Hi Trevor, M5AKA
I agree with you.
I remember that only the HEO satellites OSCAR-10,OSCAR-13 and AO40 were used
during the emergency when necessary.
My opinion is that we satellite operators we are not actually organized to
use the LEO Amateur Satellites during the emergencies so that we only
collect grids and QSL's with them as well we receive only telemetry.
I'm also not aware of any LEO amateur satellite having ever been used for
Emergency Communications but read please the following address of AMSAT and
you will surprised to read that even the LEO Amateur Satellites are built by
AMSAT to provide communications during emergencies and calamities.
http://www.amsat.org/amsat-new/satellites/sat_summary/hamsat.php
VO-52 is India's contribution to the international community of Amateur
Radio Operators.
This satellite will play a valuable role in the national and international
scenario by providing a low cost readily accessible and reliable means of
communications during emergencies and calamities like floods , earthquakes
etc.
73" de
i8CVS Domenico
----- Original Message -----
From: "M5AKA" <m5aka@xxxxx.xx.xx>
To: "i8cvs" <domenico.i8cvs@xxx.xx>
Sent: Tuesday, May 21, 2013 10:14 AM
Subject: Re: Amateur Satellites and the emergency on tornado in Oklahoma and
Texas
Hi Dominic,
An interesting question. I'm not aware of any amateur satellite having ever
been used for Emergency Communications, do you know of any ?
Yes announcements were made that amateur satellites were available for
emergency communications in both the 2004 Indian Ocean Tsunami and the 2011
Japanese Tsunami but as far as I'm aware they were never actually used.
I think the problem is two fold:
1) The lack of satellite operators, only one to two thousand world-wide
2) The initial complexity of satellite operating e.g. Doppler, Tracking,
which means those without satellite experience cannot rapidly pick it up
when an emergency strikes.
A 100 watt HF station with a dipole on 40m is far easier to set up in an
emergency and will give you a range comparable with satellites and freedom
from the restriction of a 15 minute pass time.
73 Trevor M5AKA
--- On Tue, 21/5/13, i8cvs <domenico.i8cvs@xxx.xx> wrote:
> Date: Tuesday, 21 May, 2013, 4:35
> Hi All,
>
> I am interested to know if someone in BB has used or is using the
> actual Amateur Satellites during the emergency occurred in Oklahoma
> and Texas because of the actual tornado's.
>
> We know from TV that almost 50 peoples died and if the Amateur
> Satellites were used with success that will be a useful opportunity to
> demonstrate worldwide to the autorities that our satellites are useful
> and necessary during the emergency.
>
> The call letters of the Amateurs partecipating as well the FM and
> linear Amateur Satellites used to help into the emergency will be
> appreciated.
>
> Thanks for any info.
>
> 73" de
>
> i8CVS Domenico
> _______________________________________________
> 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
_______________________________________________
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, 22 May 2013 10:45:26 -0400
From: John Price <n4qwf1@xxxxx.xxx>
To: Stefano Simonetti <iw1rdz@xxxxx.xx>, amsat-bb@xxxxx.xxxxxxxxxxxxx
E. Belter" <seb@xxxxxx.xxx>, Michael Young <wb8cxo@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: LVB 5400 rotor control problem
Message-ID:
<CA+Fxo6SRbZ9=HJsx0YRZ6KT6z2hP_KKLc1uRmUTZdtYYizr73Q@xxxx.xxxxx.xxx>
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I think you for your suggestion. Very interesting result. The HRD rotor
interface software does not display what the Yaesu rotor box does. HRO
displays 180 degrees regardless where the rotor is pointing.. However when
I click anywhere on the map the rotor proceeds to 180 degrees regardless of
where I tell it to go. 180 degrees is where the LVB box displays the rotor
position is all the time and never moves.
I removed the to of the LBV. I removed the connection from the cale to the
connector and reinstalled it. It seems tight. Hoping that might remove and
oxidation that might have built up. I pushed the IC down and no movement
was noticed. Still the same issue exist.
On Wed, May 22, 2013 at 4:10 AM, Stefano Simonetti <iw1rdz@xxxxx.xx> wrote:
> Hi, I think you refer to the lcd display that does not work. Have you
> tried to check if the info is displayed ok on a pc using for example the
> program rotator distributed with HRD (via rs232) ?
> In that case the issue could be in something wrong between the pic and the
> LCD display connections.
>
> 73, Steve - IW1RDZ
>
>
> *Da:* Stephen E. Belter <seb@xxxxxx.xxx>
> *A:* John Price <n4qwf1@xxxxx.xxx>; AMSAT-BB <amsat-bb@xxxxx.xxx>
> *Inviato:* Mercoled? 22 Maggio 2013 3:17
> *Oggetto:* [amsat-bb] Re: LVB 5400 rotor control problem
>
> John,
>
> You will get better answers from other people on the list, but a couple of
> things come to mind:
>
> 1. Do the meters still work on the Yaesu G5400B control box? If so, the
> potentiometers and wiring between the Yaesu control box and the rotors are
> probably OK. If not, check for broken or corroded control cable wires and
> connections.
>
> 2. If the meters work, then check the wiring and connections between the
> Yaesu box and the LVB tracker.
>
> 3. The next thing to worry about after connections is the 5-volt
> regulator and analog outputs from the Yaesu that give the position to the
> LVB Tracker.
>
> Check the above, then let us know what you find.
>
> 73, Steve N9IP
> --
> Steve Belter, seb@xxxxxx.xxx
>
>
> On 5/21/13 8:43 PM, "John Price" <n4qwf1@xxxxx.xxx> wrote:
>
>
> >Well after working for a very long time without issues my LVB and Yaesu
> >control box have stop talking. The rotor box works perfect with the rotor
> >but the LVB display does not indicate any movement. It just sets at 179
> > "Az" and "0" El. The switches on the LVB will move the rotor but no
> >display movement on the LVB. Anyone got any idea what might be going on
> >here?
> >
> >Thank << John
> >
> >
> >--
> >N4QWF Amateur Radio Operator
> >Email N4QWF@xxxxx.xxx
> >Formerly KC4AHW VK3FEZ
> >DXCC #33,478
> >VUCC SAT #135
> >WAS SAT #296
> >OSCAR-11 20th birthday #1
> >WAS HF #57,114
> >51 on AO-51 #13
> >LON -79.256 LAT 37.459 Grid FM07il
> >From the Foothills of the Blueridge
> >
> >*Life should not be a journey to the grave with the intention of arriving
> >safely in a pretty and well preserved body, but rather to skid in
> >broadside, thoroughly used up, totally worn out, and loudly proclaiming -
> >"WOW, What a ride!"
> >_______________________________________________
> >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
>
>
>
--
N4QWF Amateur Radio Operator
Email N4QWF@xxxxx.xxx
Formerly KC4AHW VK3FEZ
DXCC #33,478
VUCC SAT #135
WAS SAT #296
OSCAR-11 20th birthday #1
WAS HF #57,114
51 on AO-51 #13
LON -79.256 LAT 37.459 Grid FM07il
>From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of arriving
safely in a pretty and well preserved body, but rather to skid in
broadside, thoroughly used up, totally worn out, and loudly proclaiming -
"WOW, What a ride!"
------------------------------
Message: 7
Date: Wed, 22 May 2013 16:03:11 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: Rolf Krogstad <rolf.krogstad@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx Bill W1PA <w1pa@xxxxxxx.xxx>
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID: <519CEC3F.4090800@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Yep, it's about 13* here in SoCal.
Jim
On 05/22/2013 11:39 AM, Rolf Krogstad wrote:
> Sorry, I forgot to say it makes a difference because of Magnetic
> Declination - the difference between magnetic north and true north.
>
>
> On Wed, May 22, 2013 at 6:37 AM, Rolf Krogstad
<rolf.krogstad@xxxxx.xxx>wrote:
>
>> Jim makes a good point. Know where the points of the compass are.
>>
>> And, depending on where you are located, that is not as simple as just
>> taking out a compass.
>> It can make a fair amount of difference if you are in the western states
>> of the US and not so much, if any, if you are in some place like Pensacola,
>> Florida.
>>
>> NOAA has a calculator: http://www.ngdc.noaa.gov/geomag-web/#declination
>>
>> 73
>> Rolf NR0T
>> EN34
>> Amsat-NA #38889
>>
>>
>> On Tue, May 21, 2013 at 11:39 PM, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
>>
>>> You're definitely approaching it in the right way, Bill!
>>>
>>> An FT-847 is an excellent satellite rig, and in combination with a small
>>> gain antenna, will be an excellent station.
>>>
>>> The 50 Watts the '847 provides is more than enough RF power, even with
>>> the Arrow, or similar Elk, antenna.
>>>
>>> A preamps are highly recommended, especially with a smaller antenna.
>>>
>>> Use a diplexer "in reverse" to help get rid of desense. It's more
>>> important than you'd think.
>>>
>>>
http://www.amsat.org/amsat-**new/articles/Mode-J/<http://www.amsat.org/amsat-n
ew/articles/Mode-J/>
>>>
>>> A few other tips to help you.......
>>>
>>> If you're going to be running tracking software, like SatPC32, make SURE
>>> your PC has the correct time set!
>>>
>>> An error of 10~15 seconds may not sound like much, but it can cause you
>>> point your antennas wrong, and ruin a pass.
>>>
>>> Same with your Lat/Lon. I use a GPS, which also supplies an accurate
>>> clock to the laptop, but a lot of people get by with just using grid
>>> squares.
>>>
>>> Know precisely *WHERE* North, South. East, and West are at your station
>>> location.
>>>
>>> You'd be surprised how many people don't, and then can't find the sats as
>>> they come up over the horizon.
>>>
>>> Have a helper to point the antenna, as you'll be busy doing the "Doppler
>>> Dance".
>>>
>>> Again, if you run SatPC32, the Doppler correction is fed to the rig, and
>>> it's one less manual operation to split your limited time amongst.
>>>
>>> Keep the TenTec on the shelf, in the collection.
>>>
>>> And as somebody else pointed out, get started setting up and practicing
>>> NOW!!
>>>
>>> If you wait until Field Day weekend, you'll wind up extremely frustrated,
>>> with few or no contacts!
>>>
>>> I know, as I used to do it that way every year. I think the best I ever
>>> got was three contacts one year.
>>>
>>> The next year I started two months early, and I made THIRTY FIVE contacts
>>> that year, just because:
>>>
>>> I didn't forget anything at home, requiring numerous unnecessary trips
>>> back and forth (I also bought some Tupperware tubs to keep all the
>>> satellite stuff in!)
>>>
>>> Everything worked because I had six weekends to practice setting up and
>>> operating before Field Day, ensuring all the bugs were worked out
>>>
>>> I was a lot more comfortable using the station because I knew it all
>>> worked, and the stress level was much lower.
>>>
>>> Good luck, get going, and listen for K6AA on Field Day, and KQ6EA the
>>> weeks before while I'm practicing!
>>>
>>> 73, Jim KQ6EA
>>>
>>>
>>>
>>> On 05/21/2013 08:09 PM, Bill W1PA wrote:
>>>
>>>> I may set up a Field Day satellite station for our local club. I haven't
>>>> done
>>>> this in a while.... my last experience with a non-FM bird was AO-40.
>>>>
>>>> I'd like to avoid the futility of the FM LEO's on FD, and look to the
>>>> working passband birds, which I understand are AO-7, FO-29, and VO-52.
>>>>
>>>> I have at my disposal a FT-847, an Arrow satellite antenna (V/U), and if
>>>> needed,
>>>> various preamps and poweramps for 2m and 432, as well as antennas with
>>>> more elements.
>>>>
>>>> I also have a Ten Tec 2510 satellite unit that does not have the "extra
>>>> crystal board",
>>>> which I understand makes it a non-starter for the 3 birds I mentioned.
>>>>
>>>> For those of you experienced with the bandpass birds, assuming an
>>>> outdoor,
>>>> clear sky access location, what should I bring? (i.e. will the FT-847
>>>> stock amp be sufficient?
>>>> How many elements do I need for uplink? pre-amp for downlink? etc)
>>>>
>>>> I also may only be able to work overnight (in darkness) -- that rules
>>>> out AO-7, correct?
>>>>
>>>> Bill W1PA
>>>> ______________________________**_________________
>>>> 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<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<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, 22 May 2013 20:44:00 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Fw: Amateur Satellites and the emergency
Message-ID: <000001ce571c$9fcaec60$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="utf-8"
----- Original Message -----
From: "Raydel Abreu Espinet" <cm2esp@xxxxxx.xx.xx>
To: "Jeff Griffin" <kb2m@xxxxxxx.xxx>
Cc: "'i8cvs'" <domenico.i8cvs@xxx.xx>; "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>;
"'M5AKA'" <m5aka@xxxxx.xx.xx>
Sent: Wednesday, May 22, 2013 4:17 PM
Subject: Re: Amateur Satellites and the emergency
> Hello,
>
> About the topic of satellites and emergencies I think satellites are an
option very important to consider when there is no more available. In case
of HF propagation blackouts or poor conditions and when local VHF and UHF
repeaters fails, satellites can bring help, specially from light weight
battery run portable stations.
>
> Here in Cuba we do every year an emergency rehearsal exercise named
"Meteoro" which is organized by Cuba's Civil Defense to simulate
catastrophes and other actions relevant to the upcoming hurricane season.
>
> This weekend (May 18th and 19th) was held the 2013 Exercise, like always
Cuban Ham Radio Operators are invited to participate as an important asset
during emergencies. But by first time ever on the Civil Defense National
Headquarters were is installed amateur station CO9DCN we do a short and
simple satellite demonstration to the Civil Defense authorities.
>
> The short demo was just a simple "hello" exchanged between CO6CBF (Hector)
in Cienfuegos Province and CM2ESP/Portable (Raydel) in the Headquarter's
backyard. Hector had done previous years demos for his province's civil
defense authorities, but this was the first time a demo was done at the
National Civil Defense Headquarters. As HF propagation was terribly bad that
day due to the recent solar flares the Civil Defense Authorities were very
pleased with our short demo proving that satellites can be an alternative
when ground and ionospheric propagation are disrupted.
>
> The Press publish a short report about the amateur radio importance on
emergencies and there is also a short mention in paragraph three of the very
first satellite contact.
>
> The news report can be found here:
> http://www.ain.cu/2013/mayo/19ya-meteoro_reduccion_desastres.htm
>
> It is in spanish only, but google translator works fine:
>
http://translate.google.com.cu/translate?hl=es&sl=es&tl=en&u=www.ain.cu%2F20
13%2Fmayo%2F19ya-meteoro_reduccion_desastres.htm
>
> On the picture featured on the news report from the Cuban News Agency you
can see CO9DCN Club Station (Defensa Civil Nacional - National Civil
Defense) being operated by CO2OT in digital modes and CO2JC in voice
communications. The satellite demo was done portable on the backyard on
Sunday at 14:10 UTC during a SO-50 pass, the press arrived one hour after
the satellite pass so unfortunately there is no photo available.
>
> 73,
>
> Raydel, CM2ESP
> GROS Coordinator
>
> ---
> PS: GROS is the Cuban Satellite Group.
>
> ----- Mensaje original -----
> De: Jeff Griffin <kb2m@xxxxxxx.xxx>
> Para: 'i8cvs' <domenico.i8cvs@xxx.xx>, 'AMSAT-BB' <amsat-bb@xxxxx.xxx>,
'M5AKA' <m5aka@xxxxx.xx.xx>
> Enviado: Wed, 22 May 2013 08:36:36 -0400 (CDT)
> Asunto: [amsat-bb] Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas
>
> I remember at least two times the LEO's were used for emergencies, on one
> occasion, I actually transferred some health and welfare traffic. The one
I
> participated in was during the bad ice storms along the northeast coast
> during the winter of (1998 ?). I personally forwarded health and welfare
> traffic from two Canadian satellite stations who were in an area where
there
> was no electricity for over a month. As poor HF propagation and marginal
> portable antennas weren't getting out the only way to communicate was via
> the LEO FM birds. I remember passing information via AO-27 at least twice.
I
> also remember the difficulty of getting out the information that the
> satellite was being used for an emergency :-) . The second occasion(as
> noted, in another post) was during the Pacific Tsunami disaster (around
> 2004?) it was proposed that the store and forward digital PACSAT's were to
> be used to pass health and welfare traffic out of some islands in the
> Pacific Ocean that were devastated by the Tsunami. If one was to search
the
> AMSAT archives there were threads started both times.
>
> 73 Jeff kb2m
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of i8cvs
> Sent: Tuesday, May 21, 2013 8:02 PM
> To: AMSAT-BB; M5AKA
> Subject: [amsat-bb] Re: Amateur Satellites and the emergency on tornado in
> Oklahoma and Texas
>
> Hi Trevor, M5AKA
>
> I agree with you.
>
> I remember that only the HEO satellites OSCAR-10,OSCAR-13 and AO40 were
used
> during the emergency when necessary.
>
> My opinion is that we satellite operators we are not actually organized to
> use the LEO Amateur Satellites during the emergencies so that we only
> collect grids and QSL's with them as well we receive only telemetry.
>
> I'm also not aware of any LEO amateur satellite having ever been used for
> Emergency Communications but read please the following address of AMSAT
and
> you will surprised to read that even the LEO Amateur Satellites are built
by
> AMSAT to provide communications during emergencies and calamities.
>
> http://www.amsat.org/amsat-new/satellites/sat_summary/hamsat.php
>
> VO-52 is India's contribution to the international community of Amateur
> Radio Operators.
> This satellite will play a valuable role in the national and international
> scenario by providing a low cost readily accessible and reliable means of
> communications during emergencies and calamities like floods , earthquakes
> etc.
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "M5AKA" <m5aka@xxxxx.xx.xx>
> To: "i8cvs" <domenico.i8cvs@xxx.xx>
> Sent: Tuesday, May 21, 2013 10:14 AM
> Subject: Re: Amateur Satellites and the emergency on tornado in Oklahoma
and
> Texas
>
>
> Hi Dominic,
>
> An interesting question. I'm not aware of any amateur satellite having
ever
> been used for Emergency Communications, do you know of any ?
>
> Yes announcements were made that amateur satellites were available for
> emergency communications in both the 2004 Indian Ocean Tsunami and the
2011
> Japanese Tsunami but as far as I'm aware they were never actually used.
>
> I think the problem is two fold:
> 1) The lack of satellite operators, only one to two thousand world-wide
> 2) The initial complexity of satellite operating e.g. Doppler, Tracking,
> which means those without satellite experience cannot rapidly pick it up
> when an emergency strikes.
>
> A 100 watt HF station with a dipole on 40m is far easier to set up in an
> emergency and will give you a range comparable with satellites and freedom
> from the restriction of a 15 minute pass time.
>
> 73 Trevor M5AKA
>
> --- On Tue, 21/5/13, i8cvs <domenico.i8cvs@xxx.xx> wrote:
> > Date: Tuesday, 21 May, 2013, 4:35
> > Hi All,
> >
> > I am interested to know if someone in BB has used or is using the
> > actual Amateur Satellites during the emergency occurred in Oklahoma
> > and Texas because of the actual tornado's.
> >
> > We know from TV that almost 50 peoples died and if the Amateur
> > Satellites were used with success that will be a useful opportunity to
> > demonstrate worldwide to the autorities that our satellites are useful
> > and necessary during the emergency.
> >
> > The call letters of the Amateurs partecipating as well the FM and
> > linear Amateur Satellites used to help into the emergency will be
> > appreciated.
> >
> > Thanks for any info.
> >
> > 73" de
> >
> > i8CVS Domenico
> > _______________________________________________
> > 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
>
> _______________________________________________
> 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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 8, Issue 168
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