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CX2SA > SATDIG 30.05.13 21:03l 817 Lines 21324 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Is there anyway to get a linear transponder on the ISS?
(Ing. Pavel Milanes Costa)
2. CubeBug-2 hopes for Nov. 2013 Yasny Dnepr launch (M5AKA)
3. Re: Is there anyway to get a linear transponder on the ISS? (Joe)
4. Re: Is there anyway to get a linear transponder on the ISS?
(gordonjcp@xxxx.xxxx
5. Re: Is there anyway to get a linear transponder on the ISS?
(g0mrf@xxx.xxxx
6. Re: Is there anyway to get a linear transponder on the ISS?
(Robert Bruninga)
7. Re: Is there anyway to get a linear transponder on theISS?
(David Barber)
8. Re: Is there anyway to get a linear transponder on the ISS?
(gordonjcp@xxxx.xxxx
9. Re: Is there anyway to get a linear transponder on theISS?
(gordonjcp@xxxx.xxxx
10. Re: International Space Station-Bounce on 1296 MHz (Andreas Imse)
11. Re: International Space Station-Bounce on 1296 MHz (Andreas Imse)
12. Qu?bec provincial Hamfest (lucleblanc6@xxxxxxxxx.xxx
----------------------------------------------------------------------
Message: 1
Date: Thu, 30 May 2013 07:51:47 -0400
From: "Ing. Pavel Milanes Costa" <co7wt@xxxxxx.xx.xx>
To: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <51A73D53.6000204@xxxxxx.xx.xx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Yeha...
A V/A transponder on the ISS would be a success... ;-)
I confess: I like V/A (2m/10m) because I do not have UHF radios...
BTW: Why is the U/V the choice of almost any sat launched this days...?
Why not V/U or V/A?
73 de CO7WT
El 30/05/13 00:17, Bob- W7LRD escribi?:
> if there were a "real" ham on the ISS things would be different.
> 73 Bob W7LRD
>
> ------------------------------------------------------------------------
> *From: *"Ing. Pavel Milanes Costa" <co7wt@xxxxxx.xx.xx>
> *To: *amsat-bb@xxxxx.xxx
> *Sent: *Wednesday, May 29, 2013 7:04:23 PM
> *Subject: *[amsat-bb] Re: Is there anyway to get a linear transponder on
> the ISS?
>
> There is no provision or equipment for the job on board.
>
> There is a FM repeater in U/V mode, but last time on for it back a years
> from now (2008?)
>
> That time I read in some place of the internet that the FM repeater was
> a power hungry device onboard, and that's why it was turned off...
>
> They do not want to listen, or no body said to them that just turning
> the TX Power Down will fix this... or kind of...
>
> I think the repeater function involved the Kenwood radio that now has a
> malfunction...
>
> so... there is no hope for now...
>
> My 5 cents...
>
> 73 de CO7WT
>
> El 29/05/13 21:03, K5VOU escribi?:
> > Just thinkin'
> > Tom K5VOU
> >
> >
> > _______________________________________________
> > 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: 2
Date: Thu, 30 May 2013 13:26:07 +0100 (BST)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] CubeBug-2 hopes for Nov. 2013 Yasny Dnepr launch
Message-ID:
<1369916767.97560.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
CubeBug-2 will carry an AX.25 packet radio digipeater for amateur radio use,
See http://amsat-uk.org/2013/05/30/cubebug-2-november-dnepr/
----
73 Trevor M5AKA
AMSAT-UK website http://amsat-uk.org/
Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396
Twitter https://twitter.com/AMSAT_UK
----
------------------------------
Message: 3
Date: Thu, 30 May 2013 08:31:10 -0500
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <51A7549E.7060502@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Good Point!
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 5/30/2013 12:13 AM, Andy Kellner wrote:
> Bit of a shame that the people in charge at NASA decide its worth flying
an accoustic guitar to the ISS so some astronaut can have his 5 minutes of
fame, but dont spend $ 2000 on a tiny FM repeater which 10.000+ hams
worldwide would enjoy in many years to come, let alone the educational
impact. As it has been said, if that radio would be turned down to .. lets
say 5 W .. the impact on the power budget of the ISS, which currently has a
power generating capacity of 84 kW (!), would be completely insignificant.
>
>
> A bit unclear to me why NASA still seems to be keen about school contacts,
but wont enable a brick-and-mortar ham to setup a demonstration at _any_
school without any further NASA envolvement, demonstrating the FM repeater
.. "look, I am talking to this other guy using the International Space
Station which right now passes over our heads ..."
>
> My 2 c.
>
> Andreas - VK4TH
>
> ________________________________
> From: Ing. Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
> To: amsat-bb@xxxxx.xxx
> Sent: Thursday, 30 May 2013 12:04 PM
> Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on the
ISS?
>
>
> There is no provision or equipment for the job on board.
>
> There is a FM repeater in U/V mode, but last time on for it back a years
> from now (2008?)
>
> That time I read in some place of the internet that the FM repeater was
> a power hungry device onboard, and that's why it was turned off...
>
> They do not want to listen, or no body said to them that just turning
> the TX Power Down will fix this... or kind of...
>
> I think the repeater function involved the Kenwood radio that now has a
> malfunction...
>
> so... there is no hope for now...
>
> My 5 cents...
>
> 73 de CO7WT
>
> El 29/05/13 21:03, K5VOU escribi?:
>> Just thinkin'
>> Tom K5VOU
>>
>>
>> _______________________________________________
>> 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: 4
Date: Thu, 30 May 2013 15:19:10 +0100
From: gordonjcp@xxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <20130530141910.GA8735@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On Thu, May 30, 2013 at 08:31:10AM -0500, Joe wrote:
> http://www.idle-tyme.com
> On 5/30/2013 12:13 AM, Andy Kellner wrote:
> >Bit of a shame that the people in charge at NASA decide its worth flying
an accoustic guitar to the ISS so some astronaut can have his 5 minutes of
fame, but dont spend $ 2000 on a tiny FM repeater which 10.000+ hams
worldwide would enjoy in many years to come, let alone the educational
impact. As it has been said, if that radio would be turned down to .. lets
say 5 W .. the impact on the power budget of the ISS, which currently has a
power generating capacity of 84 kW (!), would be completely insignificant.
Oh, don't be so bloody ridiculous. The guitar was flown up about ten years
ago!
If you want two grand spent on an FM or for that matter linear transponder,
put your hand in your pocket and stop whining. It probably wouldn't even
cost as much as that (even allowing for the US dinar being pretty low right
now) to build a flight-rated repeater - it's not like it has to live
outside, right?
--
Gordonjcp MM0YEQ
------------------------------
Message: 5
Date: Thu, 30 May 2013 10:55:29 -0400 (EDT)
From: g0mrf@xxx.xxx
To: co7wt@xxxxxx.xx.xxx w7lrd@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <8D02B5CDC1F4F42-19D0-3BAEB@xxxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="utf-8"; format=flowed
Hi.
Mode VU suffers from interference at the atellite from illegal use of
2m for taxis etc.
Mode VU has a higher path loss on UHF from the satellite to ground
Mode A has issues with higher noise levels and the size of antenna
required on the satellite.
But, I agree mode A would get a lot of interest from people with HF +
50MHz equipment.
- HF antenna = prototype deorbit system??
or 2 x ferrite rods at 90 degrees on receive
Thanks
David G0MRF
-----Original Message-----
From: Ing. Pavel Milanes Costa <co7wt@xxxxxx.xx.xx>
To: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
CC: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Thu, 30 May 2013 13:26
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Yeha...
A V/A transponder on the ISS would be a success... ;-)
I confess: I like V/A (2m/10m) because I do not have UHF radios...
BTW: Why is the U/V the choice of almost any sat launched this days...?
Why not V/U or V/A?
73 de CO7WT
El 30/05/13 00:17, Bob- W7LRD escribi?:
> if there were a "real" ham on the ISS things would be different.
> 73 Bob W7LRD
>
>
------------------------------------------------------------------------
> *From: *"Ing. Pavel Milanes Costa" <co7wt@xxxxxx.xx.xx>
> *To: *amsat-bb@xxxxx.xxx
> *Sent: *Wednesday, May 29, 2013 7:04:23 PM
> *Subject: *[amsat-bb] Re: Is there anyway to get a linear transponder
on
> the ISS?
>
> There is no provision or equipment for the job on board.
>
> There is a FM repeater in U/V mode, but last time on for it back a
years
> from now (2008?)
>
> That time I read in some place of the internet that the FM repeater
was
> a power hungry device onboard, and that's why it was turned off...
>
> They do not want to listen, or no body said to them that just turning
> the TX Power Down will fix this... or kind of...
>
> I think the repeater function involved the Kenwood radio that now has
a
> malfunction...
>
> so... there is no hope for now...
>
> My 5 cents...
>
> 73 de CO7WT
>
> El 29/05/13 21:03, K5VOU escribi?:
> > Just thinkin'
> > Tom K5VOU
> >
> >
> > _______________________________________________
> > 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: Thu, 30 May 2013 11:02:15 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <93fd632c1bb97bba551796a007724543@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
> if there were a "real" ham on the ISS things would be different.
Yep, then nothing would get done. All he would do is float around and
complain about all the things that everyone else should be doing.
Bob, WB4APR
------------------------------
Message: 7
Date: Thu, 30 May 2013 16:46:30 +0100
From: "David Barber" <david.barber@xxxxxxxxxxxxx.xx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
theISS?
Message-ID: <1EA250AE96E9487D8D244DC3B9FD07B2@xxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Don't forget they ran L/V (23cm up / 2m down) for a short period in January
2009.
Unfortunately few takers, I think only three of us in the UK.
G8OQW
********
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of g0mrf@xxx.xxx
Sent: 30 May 2013 15:55
To: co7wt@xxxxxx.xx.xxx w7lrd@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
theISS?
Hi.
Mode VU suffers from interference at the atellite from illegal use of
2m for taxis etc.
Mode VU has a higher path loss on UHF from the satellite to ground
Mode A has issues with higher noise levels and the size of antenna
required on the satellite.
But, I agree mode A would get a lot of interest from people with HF +
50MHz equipment.
- HF antenna = prototype deorbit system??
or 2 x ferrite rods at 90 degrees on receive
Thanks
David G0MRF
------------------------------
Message: 8
Date: Thu, 30 May 2013 17:21:57 +0100
From: gordonjcp@xxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Message-ID: <20130530162157.GB8990@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On Thu, May 30, 2013 at 11:02:15AM -0400, Robert Bruninga wrote:
> > if there were a "real" ham on the ISS things would be different.
>
> Yep, then nothing would get done. All he would do is float around and
> complain about all the things that everyone else should be doing.
>
... and moaning about how astronauts these days have it too easy, and it
wasn't like this twenty years ago, and if they had only kept the requirement
for astronauts to be fighter pilots we'd be on Mars now.
--
Gordonjcp MM0YEQ
------------------------------
Message: 9
Date: Thu, 30 May 2013 17:20:47 +0100
From: gordonjcp@xxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
theISS?
Message-ID: <20130530162047.GA8990@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On Thu, May 30, 2013 at 04:46:30PM +0100, David Barber wrote:
>
> Don't forget they ran L/V (23cm up / 2m down) for a short period in January
> 2009.
>
> Unfortunately few takers, I think only three of us in the UK.
>
When they ran U/V I was able to get in quite successfully with my 70cm HT
and a simple Yagi, and receive my own signal with the 2m set in the car.
Unfortunately, the ISS had been boosted to a slightly higher orbit which put
everyone else wrong - the computer-controlled tuning and aerial steering
systems were looking in the wrong part of the sky, at the wrong time, and
transmitting on the wrong frequency.
Chalk another one up for the Armstrong Rotator then ;-)
--
Gordonjcp MM0YEQ
------------------------------
Message: 10
Date: Thu, 30 May 2013 10:05:05 +0200
From: "Andreas Imse" <andreas@xxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Cc: PA3FXB Jan van Muijlwijk <jvmmap@xxxx.xx>
Subject: [amsat-bb] Re: International Space Station-Bounce on 1296
MHz
Message-ID: <000601ce5d0c$65b8e590$312ab0b0$@xxxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Domenico,
your plan is really interesting, but I cannot support you with exact data at
present.
Maybe the wav file recorded by my SDR can give you an impression of the QSO:
https://docs.google.com/file/d/0B8ak4za2va9ZVld5ZXZaREE5bXc/edit?usp=sharing
I did not receive own echoes off the ISS, just the ones of PA3FXB, who was
using a 3 m dish as well and 375 W at feed. We used plain CW and I heard Jan
on my speaker with 2700 Hz Bandwidth.
As it was the very first shot, just to complete a QSO, no semi scientific
records were made, hi. There were too many other things to mention about.
But it is a good idea to record all data as current elevation, azimuth,
slant range, relative speed and doppler to a file. Since I do the complete
station control including CW transmission by a homebrew program,
it is just a small piece of work to do, to realize that. These data could
easily be synchronized with a wav file, like the one linked above, by using
the switching between RX and TX.
Jan and I plan further tests, when ISS will appear again at more moderate
times ;-)
We are thinking about FSK441 tests too, but not at present.
vy 73,
Andreas
Andreas Imse
DJ5AR / EI8HH
Hinter der Kirche 31
55129 Mainz
Germany
+49 6136 959025
dj5ar@xxxx.xx
www.dj5ar.de
Von: i8cvs [mailto:domenico.i8cvs@xxx.xxx
Gesendet: Donnerstag, 30. Mai 2013 01:13
An: Andreas Imse
Betreff: Re: [amsat-bb] Re: International Space Station-Bounce on 1296 MHz
Wichtigkeit: Hoch
Hi Andreas, DJ5AR
Using the RADAR equation I would like to perform a link calculation of your
QSO with Jan PA3FXB through the International Space Station-Bounce on 1296
MHz
I already know that the gain of your 3 meter dish is 29 dB and your power at
the feed point is 200 W but I need the additional estimated following
informations:
1) The range and the elevation from the ISS and your QTH as soon you started
receiving your own ECHO'es
signals.
2) The maximum range and the elevation from the ISS and your QTH when your
received signals were the
strongest possible.
3) Were you receiving in analogic CW using 500 Hz filter and headphone or
were you using digital WSJT software
such as FSK441 or others software (commonly used for rapidly moving
meteor scatter QSO's). ?
When the ISS is at the AOS with elevation of 2 degrees the range is about
2000 km and when the elevation is about 35 degrees the range is about 700 km
so that I plan to calculate the budged link for both distances 2000 km and
700 km and see what the results are in Signal to Noise ratio using only a
analogic CW receiver and than calculate the advantages using a digital
system.
Thanks for your answere.
73" de
i8CVS Domenico
----- Original Message -----
From: Andreas Imse <mailto:andreas@xxxx.xx>
To: domenico.i8cvs@xxx.xx
Sent: Tuesday, May 28, 2013 9:23 AM
Subject: [amsat-bb] Re: International Space Station-Bounce on 1296 MHz
Hi Domenico,
I saw your posting and will give you a short reply.
We are both using 3 m dishes, 200 W here and 375 W on Jan?s side.
That was far enough for our tests.
As our QTHs are quite close (only 367 km), it is possible that QSOs over a
larger distances might be possible with less power like in aircraft scatter.
If you are equipped for 1296 MHz and able to track the ISS with your
antenna, we should have a try.
Doppler compensation can be done completely on my side.
By the way: I have been visiting Naples and Stromboli 3 years ago and
remember passing Torre del Greco with the Circum Vesuviana.
vy 73,
Andreas
Andreas Imse
DJ5AR / EI8HH
Hinter der Kirche 31
55129 Mainz
Germany
+49 6136 959025
dj5ar@xxxx.xx
www.dj5ar.de
------------------------------
Message: 11
Date: Thu, 30 May 2013 10:20:52 +0200
From: "Andreas Imse" <andreas@xxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: International Space Station-Bounce on 1296
MHz
Message-ID: <000b01ce5d0e$99da7800$cd8f6800$@xxxx.xx>
Content-Type: text/plain; charset="us-ascii"
Hi Domenico and all others, interested in this subject.
I am not looking for completing QSOs only and would like to test with
receiving stations too.
if you have an antenna for 1296 MHz and are able to do ISS tracking, we can
try.
I can perform the complete doppler compensation as well for uplink as for
downlink here.
So the receiving station may stay and listen on a fixed frequency ( e.g.
1296,300 MHz).
vy 73,
Andreas
Andreas Imse
DJ5AR / EI8HH
Hinter der Kirche 31
55129 Mainz
Germany
+49 6136 959025
<mailto:dj5ar@xxxx.xx> dj5ar@xxxx.xx
<http://www.dj5ar.de> www.dj5ar.de
------------------------------
Message: 12
Date: Thu, 30 May 2013 13:47:42 -0400
From: lucleblanc6@xxxxxxxxx.xx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Qu?bec provincial Hamfest
Message-ID: <51A790BE.21222.18BEFE1@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; CHARSET=US-ASCII
The Quebec provinvial hamfest will be held sunday june 2 2013 in
Sorel-Tracy. Sponsored by the Sorel-Tracy VE2CBS ARC who will present the
first EME class PORTABLE station.
For more info visit http://www.hamfest.qc.ca/Hamfest/Accueil.html
http://www.ve2cbs.qc.ca/VE2CBS/Nos_albums/Pages/Projet_%22Objectif_Lune%22.htm
l
Luc Leblanc VBE2DWE
------------------------------
_______________________________________________
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 182
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