| |
CX2SA > SATDIG 22.05.13 10:15l 1057 Lines 34620 Bytes #999 (0) @ WW
BID : AMSATBB8167
Read: GUEST
Subj: AMSAT-BB-digest V8 167
Path: IZ3LSV<IQ5KG<IK1NHL<CX2SA
Sent: 130522/0812Z @:CX2SA.SAL.URY.SA #:6546 [Salto] FBB7.00e $:AMSATBB8167
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. A viable FD satellite operation (Bill W1PA)
2. Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas (JoAnne Maenpaa)
3. LVB 5400 rotor control problem (John Price)
4. Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas (i8cvs)
5. Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas (i8cvs)
6. Re: Amateur Satellites and the emergency on tornado in
Oklahoma and Texas (i8cvs)
7. Re: LVB 5400 rotor control problem (Stephen E. Belter)
8. Re: Amateur Satellites and the emergency on tornadoin
Oklahoma and Texas (i8cvs)
9. Re: A viable FD satellite operation (Stephen E. Belter)
10. Re: A viable FD satellite operation (Philip Jenkins)
11. Re: Amateur Satellites and the emergency on tornadoin
Oklahoma and Texas (Bill Acito)
12. Re: A viable FD satellite operation (Bill Acito)
13. SatPC & Icom (Al Ozias)
14. Re: A viable FD satellite operation (Jim Jerzycke)
15. Re: Question about HamTV (Miguel Barreiro)
16. Re: LVB 5400 rotor control problem (Stefano Simonetti)
----------------------------------------------------------------------
Message: 1
Date: Tue, 21 May 2013 16:09:01 -0400
From: "Bill W1PA" <w1pa@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] A viable FD satellite operation
Message-ID: <BAY157-DS931EA38A5B0CB9D2D611198A80@xxx.xxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
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
------------------------------
Message: 2
Date: Tue, 21 May 2013 18:20:42 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornado in Oklahoma and Texas
Message-ID: <007901ce5679$d12fb7c0$738f2740$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello Domenico,
In reply to your inquiry:
> 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.
Despite the sheer devastation that is shown and huge number of people
affected, as in the Oklahoma tornado, most of that damage fits within
the footprint of many 2-meter and 440 MHz repeaters. Also, the city
most affected is 15 km from the state capital so access to government
relief/response in this case happens to be nearby.
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
------------------------------
Message: 3
Date: Tue, 21 May 2013 20:43:57 -0400
From: John Price <n4qwf1@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] LVB 5400 rotor control problem
Message-ID:
<CA+Fxo6RAy1M6_AYHT1iuZaA0BJLp=W=ZHoveesw-MQqGLpbhwQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
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!"
------------------------------
Message: 4
Date: Wed, 22 May 2013 02:09:32 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>, "Ben Jackson" <bbj@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornado in Oklahoma and Texas
Message-ID: <000201ce5689$c605cbe0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Ben, N1WBV
I disagree with you because the LEO satellites are built by AMSAT to serve
also into the emergency.
Read please the following address:
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: "Ben Jackson" <bbj@xxxxxxxx.xxx>
To: "i8cvs" <domenico.i8cvs@xxx.xx>
Sent: Tuesday, May 21, 2013 6:11 AM
Subject: Re: [amsat-bb] Amateur Satellites and the emergency on tornado in
Oklahoma and Texas
> On 5/20/2013 11:35 PM, i8cvs wrote:
> > 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.
>
> Why? It's a local/regional event and the fact that you have such
> information is showing that it's flowing in and out of the affected
> area. Let's not push a solution for a problem that doesn't exist.
>
> > 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.
>
> I would wager that they are, indeed, neither during this event.
>
> Donations, thoughts, and prayers are probably the things that are most
> needed right now. Not attempts to grandstand our aspect of the hobby in
> order to garner some public relations.
>
> --
> Ben Jackson - N1WBV - New Bedford, MA
> bbj <at> innismir.net - http://www.innismir.net/
>
>
------------------------------
Message: 5
Date: Wed, 22 May 2013 02:03:34 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>, "Thomas Doyle"
<tomdoyle1948@xxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornado in Oklahoma and Texas
Message-ID: <000101ce5689$c4f19cc0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Tom, W9KE
In responce to your sentence.........."Add the chaotic single channel nature
of the FM sats and you have an even harder sales job on your hands."
Read please the following address:
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: Thomas Doyle
To: i8cvs
Sent: Tuesday, May 21, 2013 9:28 PM
Subject: Re: [amsat-bb] Amateur Satellites and the emergency on tornado in
Oklahoma and Texas
Dominico,
One of the really sad things about tragedies is how politicians and others
line up to make some cheap publicity over the suffering and death of others.
I thought 'Uncle Bob' might do something insensitive like that but was very
surprised to see you stoop so low.
Anyone trying to promote a a communications systems that works for at best
10 or 15 minutes every 90 minutes as a viable emergency system is grasping
at straws. Add the chaotic single channel nature of the FM sats and you have
an even harder sales job on your hands.
73 W9KE tom...
On Mon, May 20, 2013 at 10:35 PM, i8cvs <domenico.i8cvs@xxx.xx> wrote:
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 from my computer.
tom ...
------------------------------
Message: 6
Date: Wed, 22 May 2013 02:02:22 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "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: <000001ce5689$c4960f40$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
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
>
------------------------------
Message: 7
Date: Tue, 21 May 2013 21:17:38 -0400
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
To: John Price <n4qwf1@xxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: LVB 5400 rotor control problem
Message-ID: <CDC19328.387E6%seb@xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
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
------------------------------
Message: 8
Date: Wed, 22 May 2013 03:19:45 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>, "'AMSAT-BB'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornadoin Oklahoma and Texas
Message-ID: <000a01ce568a$72958440$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi JoAnne, K9JKM
If the 2-meter and 440 MHz repeaters are destroied by tornado
the amateur satellites are still in operation and are useful if we are
organized to use them.
Read here:
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: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Sent: Wednesday, May 22, 2013 1:20 AM
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on tornadoin
Oklahoma and Texas
> Hello Domenico,
>
> In reply to your inquiry:
>
> > 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.
>
> Despite the sheer devastation that is shown and huge number of people
> affected, as in the Oklahoma tornado, most of that damage fits within
> the footprint of many 2-meter and 440 MHz repeaters. Also, the city
> most affected is 15 km from the state capital so access to government
> relief/response in this case happens to be nearby.
>
> --
> 73 de JoAnne K9JKM
> k9jkm@xxxxx.xxx
>
>
> _______________________________________________
> 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: Tue, 21 May 2013 21:50:07 -0400
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
To: Bill W1PA <w1pa@xxxxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID: <CDC1980F.38800%seb@xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Bill,
You are approaching Field Day the correct way: Concentrate on the analog
transponder birds (FO-29, VO-52, AO-7, in that order) and don't even try
making a contact through SO-50 (the only FM sat currently working).
The FT-847 and Arrow antenna should work fine. The preamps are not
required, but a good idea if you have them.
DO NOT bring or connect a power amplifier. Make sure you know how to
decrease the power of the FT-847. Once a satellite is off the horizon
(above 15-20 degrees), you can probably make your contacts with 5-10
watts. Using more power than needed causes all kinds of problems for
everyone trying to use the satellite.
If you are at all computer literate, I'd recommend that you get SatPC32 or
other software package working to tune your radio, automating the Doppler
correction.
AO-7 doesn't work when the satellite is in darkness (eclipsed), but note
that it is usually illuminated by the sun even when it is nighttime on
earth. The biggest challenge with AO-7 is that it alternates between mode
A and mode B, and is currently switching somewhat randomly between A and
B. The best place to check for its current mode is at
http://oscar.dcarr.org .
My last piece of advice is to assemble your station and start practicing
*now*. Get things working today and gain a little practice, and you'll
have no problem making a half-dozen or more contacts, especially with your
AO-40 experience.
However, if you wait until Field Day weekend to try to make things work,
you'll be hosed. :-(
Hope to work you on FD. I'll be helping our club as W9LDX.
73, Steve N9IP
--
Steve Belter, seb@xxxxxx.xxx
On 5/21/13 4:09 PM, "Bill W1PA" <w1pa@xxxxxxx.xxx> 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
------------------------------
Message: 10
Date: Tue, 21 May 2013 22:06:08 -0400
From: Philip Jenkins <n4hf.philip@xxxxx.xxx>
To: Bill W1PA <w1pa@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID:
<CAGdEbNa+ujUeZ7cqFBKjVD7=iYysXDNaZ5zaCXffbCRNUqtsVA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
There's also an article in the June QST which answered a lot of my
questions about setting up for and operating sats on Field Day.
Philip N4HF
On Tue, May 21, 2013 at 4:09 PM, Bill W1PA <w1pa@xxxxxxx.xxx> 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>
>
------------------------------
Message: 11
Date: Tue, 21 May 2013 22:13:47 -0400
From: Bill Acito <w1pa@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Amateur Satellites and the emergency on
tornadoin Oklahoma and Texas
Message-ID: <BAY157-W210E36E9C31A2E1EB03E2198A90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Domenico,
With all due respect, you base much of your
argument on a single sentence on a marketing web page.
The "emergency" access ability may have been
used as part of the justification for funding
or launch vehicle access; it doesn't mean it works for that
in any practical situation.
When I was a teenager, I told my dad I would be
one more person available to pick him up in an emergency
if he gave me access to the car keys. Didn't mean it
would work or that I ever did. And he saw my argument
for what it was.
I think W9KE's comments are spot on.
Rather than referencing the VU page, I would Google the
role of amateur radio in the warning and aftermath of the
Joplin tornado for perspective.
Bill W1PA (in New England, but I also live on the path of
the now 2nd deadliest tornado -- Worcester 1953)
------------------------------
Message: 12
Date: Tue, 21 May 2013 22:24:46 -0400
From: Bill Acito <w1pa@xxxxxxx.xxx>
To: Philip Jenkins <n4hf.philip@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID: <BAY157-W23B32BD9D3E1D132814FFC98A90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Yes, ironically it came in the mail today.
I wish they had just skipped the FM-LEO aspect. They will just be plain ugly
on Field Day and not show this aspect of the hobby in a good light.
The last year AO-40 was available for Field Day, I was AMSAT FD #10, working
AO-40 only, single op, with no computer assist. I'm out of practice. :-)
Bill
Date: Tue, 21 May 2013 22:06:08 -0400
Subject: Re: [amsat-bb] A viable FD satellite operation
From: n4hf.philip@xxxxx.xxx
To: w1pa@xxxxxxx.xxx
CC: amsat-bb@xxxxx.xxx
There's also an article in the June QST which answered a lot of my questions
about setting up for and operating sats on Field Day.
Philip N4HF
------------------------------
Message: 13
Date: Tue, 21 May 2013 20:50:33 -0700
From: "Al Ozias" <alozias@xxxxxx.xxx>
To: "Amsat-BB" <amsat-bb@xxxxx.xxx>
Cc: Steve Bartlett <sbart800@xxxxx.xxx>
Subject: [amsat-bb] SatPC & Icom
Message-ID: <000001ce569f$840d0e40$8c272ac0$@xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
I want to control my IC-821 with SatPC32. Is a USB CI-V CAT Interface cable
for Icom CT-17 the correct way to do this? What is the difference (if any)
between a programing and interface cable? Thanks - Al
------------------------------
Message: 14
Date: Wed, 22 May 2013 04:39:15 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: Bill W1PA <w1pa@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: A viable FD satellite operation
Message-ID: <519C4BF3.8030504@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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/
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
>
------------------------------
Message: 15
Date: Wed, 22 May 2013 09:09:19 +0200
From: Miguel Barreiro <miguel.barreiro.paz@xxxxx.xxx>
To: Raydel Abreu Espinet <cm2esp@xxxxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Question about HamTV
Message-ID:
<CAKoSLJ2K4fGV1CsrM7BLOG2VyeZWsWtfm3RMjCxku5Gc+WCs1A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Raydel,
Apart from the frequency and signal level differences, DVB-T is a 6-8MHz
wide signal with COFDM modulation, using 2k to 8k subcarriers, while DVB-S
is a single carrier, 6..36MHz wide signal, usually QPSK or 8PSK. You cannot
use a downconverter and a DVB-T receiver to tune into a DVB-S channel.
However, the digital bitstream carried by both is the same - so if you have
software analyzers and audio/video players for DVB-T they will work for
DVB-S too.
Miguel
EA1ICZ
2013/5/21 Raydel Abreu Espinet <cm2esp@xxxxxx.xx.xx>
> Hello,
>
> About the future HamTV experiment, is it possible to use a cheap RTL DVB-T
> dongles used or RTLSDR to receive such signals with proper LNA and
> downconverter. If the downconversion fits the signal on a proper channel
> does it device is capable of decode the transmitted format???
>
> Thanks,
>
> Raydel
> ---
> _______________________________________________
> 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: 16
Date: Wed, 22 May 2013 09:10:27 +0100 (BST)
From: Stefano Simonetti <iw1rdz@xxxxx.xx>
To: "Stephen E. Belter" <seb@xxxxxx.xxx>, John Price
<n4qwf1@xxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: LVB 5400 rotor control problem
Message-ID:
<1369210227.71321.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
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
------------------------------
_______________________________________________
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 167
****************************************
Read previous mail | Read next mail
| |
