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CX2SA > SATDIG 22.10.12 20:08l 556 Lines 19419 Bytes #999 (0) @ WW
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Sent: 121022/1903Z @:CX2SA.SAL.URY.SA #:3492 [Salto] FBB7.00e $:AMSATBB7353
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. SatPC32 sets FT-817 doppler reversed (Richard Ferryman)
2. Re: fund raising for Fox (i8cvs)
3. Re: fund raising for Fox (Stefan Wagener)
4. Re: Montagues & Capulets (was: FM vs SSB, HEO vs LEO, etc)
(R Oler)
5. Re: Montagues & Capulets (was: FM vs SSB, HEO vs LEO, etc)
(tosca005@xxx.xxxx
6. Re: OH2AUE P3E transponder demo video (Michael Fletcher)
7. UK Newspaper Reports on FITSAT-1 (Trevor .)
8. Single 817 with Sat32 (JHBRTOO@xxx.xxxx
9. Re: Single 817 with Sat32 (Mark L. Hammond)
10. Re: SatPC32 sets FT-817 doppler reversed (Erich Eichmann)
----------------------------------------------------------------------
Message: 1
Date: Sun, 21 Oct 2012 21:23:08 +0100
From: "Richard Ferryman" <g4bbh@xxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] SatPC32 sets FT-817 doppler reversed
Message-ID: <31008348F37546DD962E8CE8821EC548@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
I am getting a problem with SatPC32 V. 12.8b and CAT control FT-817ND. The
doppler correction is perfect with two separate FT-817s, one for TX and one
for RX. Recently I have been having problems when using one FT-817 simplex
for ISS and similar sats. SatPC32 is calculating correct downlink frequency
with doppler correction but is setting the rig to the uplink frequency
during receive and downlink frequency during transmit. Sometimes it works
correctly but more often it has this problem. I slowed the CAT rate in
case there were errors but no improvement. Any ideas or suggestions please?
Dick
------------------------------
Message: 2
Date: Mon, 22 Oct 2012 00:44:36 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "mm0kjg" <mm0kjg@xxxxxxxxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: fund raising for Fox
Message-ID: <000001cdafde$06575680$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Kev, MM0KJG
The fund raiser that Frank K4FEG posted WAS A JOKE people.
Why would anyone think other wise????????
73" de
i8CVS Domenico
----- Original Message -----
From: "mm0kjg" <mm0kjg@xxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, October 21, 2012 8:04 PM
Subject: [amsat-bb] fund raising for Fox
> Hello all
> Lets be honest here If I had to pay to post I would just go elsewhere.
> I think I would have to get a part time job and do the Lottery to pay
> for it.
>
> Cheers keep up the good Ideas????
>
> Kev a poor Scotsman
> _______________________________________________
> 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: 3
Date: Sun, 21 Oct 2012 18:32:15 -0500
From: Stefan Wagener <wageners@xxxxx.xxx>
To: i8cvs <domenico.i8cvs@xxx.xx>
Cc: Amsat - BBs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: fund raising for Fox
Message-ID:
<CAKu8kHA6nw8zpGFipdF9KEKjKJo=mRjJMUwAZTW6kg37psasJA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Oh Hi Domenico,
Now I get it! Only took me two years.
All your previous emails bashing Cubesats was a joke. You actually LOVE
them. WONDERFUL! Great Italian humour.
"Why would anyone think otherwise????????"
73 Stefan VE4NSA
On Sun, Oct 21, 2012 at 5:44 PM, i8cvs <domenico.i8cvs@xxx.xx> wrote:
> Hi Kev, MM0KJG
>
> The fund raiser that Frank K4FEG posted WAS A JOKE people.
> Why would anyone think other wise????????
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "mm0kjg" <mm0kjg@xxxxxxxxxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Sunday, October 21, 2012 8:04 PM
> Subject: [amsat-bb] fund raising for Fox
>
>
> > Hello all
> > Lets be honest here If I had to pay to post I would just go elsewhere.
> > I think I would have to get a part time job and do the Lottery to pay
> > for it.
> >
> > Cheers keep up the good Ideas????
> >
> > Kev a poor Scotsman
> > _______________________________________________
> > 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: 4
Date: Thu, 18 Oct 2012 23:43:15 -0500
From: R Oler <orbitjet@xxxxxxx.xxx>
To: <ka3hsw@xxx.xxx>, Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Montagues & Capulets (was: FM vs SSB, HEO vs
LEO, etc)
Message-ID: <COL106-W10570E717DA1ACBC4A92BBD6750@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I think that saying and others like it have about as much value as oh the
"FM/linear satellite argument." ie almost none.
Steve Ford (dont recall the call, he is the "Big Key" at ARRL) ran a series
of articles pre the launch of AO-40 where as I recall he compared each
transponder combination as "a new band" (If I got this wrong Steve I
apologize)...and in my view that explanation explains a lot of what is wrong
about the satellite setup now.
The FM birds are popular because they are really a high repeater with the
novelty of being "in space". There is a lot of "DX" for those use to a
repeater but essentially it is short ranged.
The gear for the linear birds is not all that much more expensive then FM
equipment. BUT if you dont use it for the birds and dont have really good
antenna arrays it is more or less not of a lot of use. The same could be
said in spades for some gear that will do C to X band or the other way.
Without some sort of HEO (or even a reasonable MEO) any "band" that comes
from the linear birds is always going to be more "short ranged"...and while
a lot of people like building things etc the prime object in amateur radio
still is "communication" and working DX...one doesnt have to do a lot of
"footprint" work to see that AO-7 and VU-52 great birds that they are, are
still not terribly "dx" birds.
Amateur satellite communications would be a different place if AO-10 or 13
were still working or up, even if we had a Oscar IV (in its correct orbit)
or Arsene working or even AO-40. If we had a transponder even on a spent
upper stage that was wondering back and forth in a GTO...things would be
very different.then DX would be a reality not a dream. The technology
challenge is not that hard, if there was DX I suspect you would find more
people on the linear birds.
Until then AO-7 and VU 52 are great and we can all do slogans like "for us
or against us"... Robert WB5MZO
> Date: Thu, 18 Oct 2012 11:18:18 -0700
> From: ka3hsw@xxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: Montagues & Capulets (was: FM vs SSB, HEO vs
LEO, etc)
>
> The saying, "if you're not part of the solution, you're part of the problem"
> comes to mind...
>
>
>
>
>
> George, KA3HSW
>
> (Spend a buck every week on a lottery ticket in AMSAT's name: one of us
may get
> lucky!)
>
>
>
>
> ----- Original Message ----
> > From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
> [snip]
> >
> > Clayton et al. 100% correct...The lowest common denominator is cost...If
you're
> >not donating your time and dollars you have lost your credibility to
> >complain...somewhere along this latest diatribe it was mentioned we're a
"cheap
> >bunch". "Home brew" has it's limits. Our personal predilections are
irrelevant
> >to the grander scheme of things. I have suggested a few times we all go
through
> >our shacks and sell off that "get around to it" project, and send the
money to
> >the AMSAT of your choice. I have sold stuff, given talks to clubs, had a
booth
> >at hamfests, regularly have automatic funds sent to AMSAT. You're either
in or
> >you're not.
> >
> > 73 Bob W7LRD
> > Seattle
> >
>
> _______________________________________________
> 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: 21 Oct 2012 23:29:15 -0500
From: tosca005@xxx.xxx
To: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Montagues & Capulets (was: FM vs SSB, HEO vs
LEO, etc)
Message-ID: <Gophermail.2.0.1210212329150.270@xxxx.xx.xxx.xxx>
Content-Type: text/plain; format=flowed; charset=UTF-8
On Oct 21 2012, R Oler wrote:
>
The gear for the linear birds is not all that much more expensive then FM
equipment. BUT if you dont use it for the birds and dont have really good
antenna arrays it is more or less not of a lot of use. The same could be
said in spades for some gear that will do C to X band or the other way.
>
Without some sort of HEO (or even a reasonable MEO) any "band" that comes
from the linear birds is always going to be more "short ranged"...and while
a lot of people like building things etc the prime object in amateur radio
still is "communication" and working DX...one doesnt have to do a lot of
"footprint" work to see that AO-7 and VU-52 great birds that they are, are
still not terribly "dx" birds.
>
Spoken like someone who is not active on the 10 GHz band. If you look at
the records of the ARRL 10 GHz and Up Cumulative Contest (the only ARRL
contest that reports the distances between stations in QSO's), you will
find a large number of 300 Km and longer contacts. And I'm not talking
about the spectacular distances covered by rare and exotic band openings.
I'm talking about repeated contacts between stations running 2 to 8 watts
into a small offset feed dishes. Microwave bands are NOT just for contacts
in the 20-50 Km range.
And not just for contests either. I admit that a lot of the hams in the
area where I lived for 33 years and now live during the summertime (where
the Northern Lights Radio Society plays) turn off the microwave equipment
and put it into storage between contests, but not all of them. In fact,
there are a couple of operators that ragchew on 10 GHz between Minneapolis
MN (EN34lx) and Grand Rapids, MN (EN37ed) nearly every day. No monstrous
band opening required.
The more often that people hear hams say that the microwave bands are only
good for contesting over very short distances, the greater is the chance
that the "brainwashing" will be successful. This is known as a
self-fulfilling prophecy.
Note that I am firmly in the camp of wishing for linear transponders on any
bird that we manage to fly. The accomplishments of PE1RAH prove that even a
tiny cubesat can physically support a linear transponder, not just an FM
single-channel transponder. (See
http://www.scribd.com/doc/59006469/le005-r2 ) And I am firmly in the camp
of wishing for HEO satellites if we can ever manage to get one launched
again. Too bad that Bill Gates (or someone with almost as much money as
him) isn't a ham interested in satellite communication.
Just want to set the record straight about the utility of the higher bands.
73 de W0JT
EN34js June-September
EL09ro October-May
AMSAT-NA Life Member #2292
------------------------------
Message: 6
Date: Mon, 22 Oct 2012 08:14:42 +0300
From: Michael Fletcher <oh2aue@xxxxxxxx.xx>
To: i8cvs <domenico.i8cvs@xxx.xx>
Cc: Amsat - BBs <amsat-bb@xxxxx.xxx>, oh2aue@xxxx.xx
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <5084D642.7030907@xxxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi Domenico,
first of all the P3E 'P5A transponder' is a team effort: you may
find the members here:
http://www.rats.fi/rats/amsat-oh/
Regarding the frequencies, you should be able to decipher the
most important information from this ecrypted document, or
alternatively you could try your luck with a translator that
attempts (!) to handle Finnish to your language preference:
http://www.rats.fi/rats/amsat-oh/p3e/
There are significant frequency scheme challenges (check out the
complexity of the block diagram, being necessary to maintain the
coherent uplink/downlink ratio of 30:7), but I think the final
frequency plan is fairly satisfactory.
73 Michael OH2AUE
---
15.10.2012 22:23, i8cvs kirjoitti:
> Hi Kauto, OH2LFM and Michael OH2AUE
>
> Congratulations to both of you and expecially to Michael OH2AUE
> the designer and builder of the X band transponder
>
> I have seen your OH2AUE P3E transponder demo video and I hope
> that the downlink is in the same X band frequency 10450-10452 MHz
> as on AO40 because I have my homebrewed downconverter and a
> 60 cm dish with Chaparral feed tuned for the above frequency band
> since AO40 but unfortunately never used because of AO40 problems.
>
> I hope to use it on P3E as soon it will be in orbit.
>
> Please let us know more details on downlink frequency band as well
> output power and antenna that AMSAT-DL plan to use on P3E
>
> Thanks
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "Kauto Huopio OH2LFM" <oh2lfm@xxxx.xx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Monday, October 15, 2012 6:47 PM
> Subject: [amsat-bb] OH2AUE P3E transponder demo video
>
>
>> Just went through my old ham camp videos..
>>
>> Here is OH2AUE with a P3E transponder demo at SRAL summer camp
>> 2011. In Finnish, but images do the talking :)
>>
>> http://www.youtube.com/watch?v=y7Awv4oLM78
>>
>> --Kauto OH2LFM
>> _______________________________________________
>> 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: Mon, 22 Oct 2012 10:58:31 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] UK Newspaper Reports on FITSAT-1
Message-ID:
<1350899911.38228.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
See the Daily Mail article at
http://www.dailymail.co.uk/sciencetech/article-2220212/Amazing-images-tiny-cub
esats-flash-Morse-Code-messages-Earth-released-ISS.html
Higher resolution versions of the images used in the article are at
http://www.uk.amsat.org/?page_id=10967
and somewhere in NASA's Flickr account.
73 Trevor M5AKA
----
------------------------------
Message: 8
Date: Mon, 22 Oct 2012 11:50:38 -0400 (EDT)
From: JHBRTOO@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Single 817 with Sat32
Message-ID: <4e24.4e538c54.3db6c54d@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
There's an article in October 2012 QST in which the author WA8SME speaks of
problems with this combination. Sounds like a timing problem or the like
and does not look to be readily fixable. I was going to try just that setup,
but will now add my 897 into the mix (when my laptop gets out of the
hospital)
Hope this helps
Dave WA6EKR
------------------------------
Message: 9
Date: Mon, 22 Oct 2012 12:57:47 -0400
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
To: JHBRTOO@xxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Single 817 with Sat32
Message-ID: <50857b0c.1c85650a.54d8.ffffa752@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi Dave,
The article describes a way to work through the single radio shortcomings
for satellite SSB operations. It's quite slick--push a small button, and
the uplink VFO is programmed to match the downlink you're tuned to.
The SATCAT kit by Mark WA8SME is going to be available through ARRL-ETP in
two forms--board+PIC for $22, and full kit of parts for $40.50 (shipped).
Cheaper than an 897 ;)
Hopefully I will have several kits in hand at the AMSAT Symoposium in
Orlando later this week, available for first come, first served! (depends
on USPS...)
As I recall, Mark is pretty sure the SATCAT will work with the FT-857 and
FT-897 as well (which as a single radio, will have the same issues on SSB
birds at the FT-817).
73,
Mark N8MH
At 11:50 AM 10/22/2012 -0400, JHBRTOO@xxx.xxx wrote:
>There's an article in October 2012 QST in which the author WA8SME speaks of
> problems with this combination. Sounds like a timing problem or the like
>and does not look to be readily fixable. I was going to try just that setup,
>but will now add my 897 into the mix (when my laptop gets out of the
>hospital)
>Hope this helps
>Dave WA6EKR
>_______________________________________________
>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: Mon, 22 Oct 2012 20:50:44 +0200
From: "Erich Eichmann" <erich.eichmann@xxxxxxxx.xx>
To: "Richard Ferryman" <g4bbh@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: SatPC32 sets FT-817 doppler reversed
Message-ID: <B4F8C44700B144978573ADE0ED7173F7@xxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hello Dick,
the special program version for in-band operation over the ISS -
SatPC32ISS - unfortunately doesn't support the FT-817 (see SatPC32ISS
menu "?", "SatPC32ISS").
So, try the "normal" SatPC32. Make sure that the FT-817 display shows VFOa.
If it displays VFOb click button "A" below the display to change the VFOs.
Then select the ISS. The display should now show the RX frequency of the
first entry for the ISS in Doppler.SQF. During TX the uplink frequency
should be displayed.
I have tested that with my FT-817 and it seems to work.
My settings:
CAT Baudrate 38400,
CAT delay 110,
all options in menu "Radio Setup" unchecked.
the radio switched to Split mode.
73s, Erich, DK1TB
----- Original Message -----
From: "Richard Ferryman" <g4bbh@xxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, October 21, 2012 10:23 PM
Subject: [amsat-bb] SatPC32 sets FT-817 doppler reversed
>I am getting a problem with SatPC32 V. 12.8b and CAT control FT-817ND. The
>doppler correction is perfect with two separate FT-817s, one for TX and
>one for RX. Recently I have been having problems when using one FT-817
>simplex for ISS and similar sats. SatPC32 is calculating correct downlink
>frequency with doppler correction but is setting the rig to the uplink
>frequency during receive and downlink frequency during transmit. Sometimes
>it works correctly but more often it has this problem. I slowed the CAT
>rate in case there were errors but no improvement. Any ideas or
>suggestions please?
> Dick
> _______________________________________________
> 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 7, Issue 353
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