[amsat-bb] Re: W1AW/2 NJ on SO-50

[Bill (W1PA)]

Chris,

We were there...   where we you?  :-)

Will you try again tonight?  Would love to get at least one 
of the W1AW remotes on satellite.


Bill  W1PA 


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[amsat-bb] Re: W1AW/2 NJ on SO-50

[Chris Del Plato KQ2RP]

Bill, I worked the 4/23 0320z and 4/24 0347z passes.
Did not try last night as I was operating W1AW/2 on 20/40m CW.

http://kq2rp.tumblr.com/post/83741319734/w1aw-2-nj-on-last-nights-so-50-pass

Would like to try again tonight at 0301z, but I am portable/handheld
so impending
rain may preempt.

Chris KQ2RP
--

We were there...   where we you?  :-)

Will you try again tonight?  Would love to get at least one
of the W1AW remotes on satellite.

Bill  W1PA
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[amsat-bb] Re: W1AW/2 NJ on SO-50

[Bill (W1PA)]

Chris,

My bad... I read the previous post as _last night_ (Thr) at 
0347Z, not Wednesday.
There were a couple of us that read it wrong, so we worked 
each other instead. :-)


Will look for you tonight (Friday) if the rain holds off. I 
am handheld portable as well (Arrow and FT530).


Bill W1PA


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[amsat-bb] AO-07 Distorted audio

[Peter Wilson]

Just worked IK8YSS on AO-07.

 

Haven't worked this satellite for a while and whilst I know the bird is very
old, the audio on this pass was very distorted.

 

Is this common?

 

Peter

G8KEK

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[amsat-bb] Re: AO-07 Distorted audio

[Dave Webb KB1PVH]

Only when people are running too much power. It's called FM'ing.

Dave-KB1PVH

Sent from my Verizon Wireless Droid RAZR
On Apr 25, 2014 11:10 AM, "Peter Wilson"  wrote:

> Just worked IK8YSS on AO-07.
>
>
>
> Haven't worked this satellite for a while and whilst I know the bird is
> very
> old, the audio on this pass was very distorted.
>
>
>
> Is this common?
>
>
>
> Peter
>
> G8KEK
>
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[amsat-bb] ISS keps

[jean paul]

Hello 

For many and many years I receive the keps from Ray Hoad  to update my IT .I
just look ISS keps are not the week .

How to get these one..?

Best regards from FR5CY

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[amsat-bb] HELP

[Stephen Thornber]

Hello,

I live in Stoke-on-Trent, UK.
Any body close to me who can help me set up for satellite operations.
Or even decide if it is worth doing in the UK ?

I have a great shack, a number of VHF/UHF & HF rigs, a mast - deciding if I 
should buy a new AZ/EL rotator mine current one is 15yrs old and dead.

I need proper advice on what to by how to configure and maybe help to operate 
the set up once it is going. I have tried shout outs on local repeater but 
nobody seems to do Satellite.

Cheers Stephen
G6SGA
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[amsat-bb] Re: W1AW/2 NJ on SO-50

[Rich/wa4bue]

Hope that we can get K4AMG up before you all complete operations.

Norm K4NDH has build us a new trailer to carry our prtable antenna system 
around, so everything is disconnected.


God Bless

R
W4BUE 


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[amsat-bb] Re: W1AW/2 NJ on SO-50

[Chris Del Plato KQ2RP]

Sorry for the confusion. Doesn't look great tonite, with over 80% chance of
rain at the time of the pass, but we'll see. At any rate, to clarify - 11PM
eastern, 0300z.

73,
Chris KQ2RP
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[amsat-bb] Re: HELP

[Stefan Wagener]

Hi Stephen,

Have you gotten in touch with AMSAT-UK?

Stefan, VE4NSA


On Fri, Apr 25, 2014 at 6:21 AM, Stephen Thornber wrote:

> Hello,
>
> I live in Stoke-on-Trent, UK.
> Any body close to me who can help me set up for satellite operations.
> Or even decide if it is worth doing in the UK ?
>
> I have a great shack, a number of VHF/UHF & HF rigs, a mast - deciding if
> I should buy a new AZ/EL rotator mine current one is 15yrs old and dead.
>
> I need proper advice on what to by how to configure and maybe help to
> operate the set up once it is going. I have tried shout outs on local
> repeater but nobody seems to do Satellite.
>
> Cheers Stephen
> G6SGA
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[amsat-bb] Re: AO-07 Distorted audio

[Alan]

Peter,

That can happen when the illumination is poor, but also if there is someone 
using too much power.
They can bounce the entire transponder, resulting in very choppy, distorted 
audio.

73s,

Alan
WA4SCA
 

<-Original Message-
mailto:amsat-bb-boun...@amsat.org] On Behalf Of Peter Wilson
http://amsat.org/mailman/listinfo/amsat-bb
<

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[amsat-bb] Re: HELP

[Robert Bruninga]

> deciding if I should buy a new AZ/EL rotator mine current one is 15yrs
old and dead.

For all current Amateur Satellites, elevation control is not needed 98% of
the time.  If you are willing to give up the 2%, you can operate with a
manual $70 azimuth only TV rotator instead of a $500 full AZ/EL rotator.
Just mount the antenna tilted up at 15 degrees above the horizon and you
will have plenty of gain throughout any orbital pass, but can also use it
terrestrially too because the max gain is still on the horizon where it is
needed most.

See http://aprs.org/LEO-tracking.html

Bob, WB4APR
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[amsat-bb] Re: HELP!

[Clint Bradford]

Stephen - here is a site that offers the basics of working FM birds ...

http://www.work-sat.com

For working the SSB birds - and a LOT more, please visit ...

http://www.amsat-uk.org

... and ...

http://ww2.amsat.org/   (AMSAT-NA)

There are plenty of excellent articles and help on those three sites for you!

And do not hesitate to ask your question here!

Clint K6LCS

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[amsat-bb] Re: HELP

[B J]

On 4/25/14, Stephen Thornber  wrote:
> Hello,
>
> I live in Stoke-on-Trent, UK.
> Any body close to me who can help me set up for satellite operations.
> Or even decide if it is worth doing in the UK ?
>
> I have a great shack, a number of VHF/UHF & HF rigs, a mast - deciding if I
> should buy a new AZ/EL rotator mine current one is 15yrs old and dead.
>
> I need proper advice on what to by how to configure and maybe help to
> operate the set up once it is going. I have tried shout outs on local
> repeater but nobody seems to do Satellite.



This might help:

http://ww2.amsat.org/?page_id=1869

73s

Bernhard VA6BMJ @ DO33FL
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[amsat-bb] Re: ISS keps

[Vince Fiscus, KB7ADL]

At 01:19 PM 4/25/2014 +0400, "jean paul"  wrote:

Hello

For many and many years I receive the keps from Ray Hoad  to update my IT .I
just look ISS keps are not the week .

How to get these one..?

Best regards from FR5CY


I just update my IT from the latest keps, ISS was updated.  Maybe
you have it listed as Zarya?

KB7ADL

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[amsat-bb] Re: AO-07 Distorted audio

[Paul Stoetzer]

Absolutely!

The recommendation at the time of launch was to limit power output to no
more than 100W ERP (which is about 25 watts to a small antenna like an Elk
or an Arrow). This is even more critical now since the solar panels are
almost certainly not supplying enough power to drive the transmitter to
it's full power output. At certain times of the year, there are poor solar
angles on the panels too, which reduces power availability. Remember too
that AO-7 will enter a period where it eclipses on every orbit over the
south pole within the next week or so. That period will last for about 9
weeks. It should be in Mode B every day as a result, but from what I've
read about past eclipse cycles, it can act a bit odd during that time.

On too many passes, I hear distorted audio and reflections throughout the
transponder from it being hit too hard with SSB and especially CW. CW,
being full power at key down, unlike SSB, is even harder on a linear
transponder.

If everyone would just have the courtesy to keep their uplink power to a
reasonable level, AO-7 can be a very enjoyable satellite with a large
footprint providing the best DX opportunities currently available.
Unfortunately, this problem is not new as a glance at the AMSAT Newsletters
from 1974-1981 shows.

I recommend the following reading: The Editorial + Letter from W4NUL/5 in
the March 1976 AMSAT Newsletter, the AMSAT-OSCAR-7 QRP Test Telemetry
Report in the November 1976 AMSAT Newsletter, and the June 1976 QRP Test
Results from the December 1976 AMSAT Newsletter. All available here:
http://www.ka9q.net/AMSAT-Newsletter-1976.pdf

Please calculate your ERP ( http://www.csgnetwork.com/antennaecalc.html )
and keep it to no more than 100W.

73,

Paul Stoetzer, N8HM
Washington, DC


On Fri, Apr 25, 2014 at 11:12 AM, Dave Webb KB1PVH  wrote:

> Only when people are running too much power. It's called FM'ing.
>
> Dave-KB1PVH
>
> Sent from my Verizon Wireless Droid RAZR
> On Apr 25, 2014 11:10 AM, "Peter Wilson"  wrote:
>
> > Just worked IK8YSS on AO-07.
> >
> >
> >
> > Haven't worked this satellite for a while and whilst I know the bird is
> > very
> > old, the audio on this pass was very distorted.
> >
> >
> >
> > Is this common?
> >
> >
> >
> > Peter
> >
> > G8KEK
> >
> > ___
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> program!
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> >
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[amsat-bb] have now received Kicksat

[andy thomas]

Just to thank Dave KB1PVH for walking me through the complicated computerised 
decoding to get:

2014-04-25 17:47:45.280 UTC: [147 Bytes KISS Frame (without CRC)]
from KD2BHC to CQ via TELEM: 
   1 > 50 34 43 2C 37 35 31 2C 30 2C 34 36 38 2C 30 2C 55 89 F1 90 
  21 > 4E 8A 5B 8A 32 8A B0 8A
 61 90 40 90 51 90 5F 90 67 89 A5 90 
  41 > 31 8F 2B 90 F1 8F FE 8C D5 85 F7 88 2C EB 6D B7 4C 90 ED 90 
  61 >
 EB 91 C3 90 F0 83 D0 8F 9F 82 5E 80 95 7D E0 7E F1 8F A6 8F 
  81 > B8 8F E6 8F C7 8E 48 8F DA 20 20 20 20 28 68 64 C9 34 40 22 
 101 > 7C FD D5 44 D0 20 20 20 20 20 20 98 B1 20 20 20 20 20 20 20 
 121 > 20 
P4C,751,0,468,0,U‰ñNŠ[Š2Š°Ša@Q_g‰¥1+ñþŒÕ…÷ˆ,ëm·Líë‘ÃðƒÐŸ‚^€•}à~ñ¦¸æÇŽHÚ    
(hdÉ4@"|ýÕDР ˜±    


Note time group is decode time not rx time,  as the tlm was received earlier 
this afternoon at the first 66 deg pass over 
the uk. I did hear it yesterday; the difference from yesterday was that I 
increased the IF gain 
on the FCD proPlus until the colour threshold change.



73 de Andy G0SFJ
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[amsat-bb] Re: AO-07 Distorted audio

[Andrew Glasbrenner]

Well stated Paul!

Additionally, I fear some users just turn up the power to overcome a poor 
receive system.

73, Drew KO4MA

Sent from my iPhone

> On Apr 25, 2014, at 8:23 PM, Paul Stoetzer  wrote:
> 
> Absolutely!
> 
> The recommendation at the time of launch was to limit power output to no
> more than 100W ERP (which is about 25 watts to a small antenna like an Elk
> or an Arrow). This is even more critical now since the solar panels are
> almost certainly not supplying enough power to drive the transmitter to
> it's full power output. At certain times of the year, there are poor solar
> angles on the panels too, which reduces power availability. Remember too
> that AO-7 will enter a period where it eclipses on every orbit over the
> south pole within the next week or so. That period will last for about 9
> weeks. It should be in Mode B every day as a result, but from what I've
> read about past eclipse cycles, it can act a bit odd during that time.
> 
> On too many passes, I hear distorted audio and reflections throughout the
> transponder from it being hit too hard with SSB and especially CW. CW,
> being full power at key down, unlike SSB, is even harder on a linear
> transponder.
> 
> If everyone would just have the courtesy to keep their uplink power to a
> reasonable level, AO-7 can be a very enjoyable satellite with a large
> footprint providing the best DX opportunities currently available.
> Unfortunately, this problem is not new as a glance at the AMSAT Newsletters
> from 1974-1981 shows.
> 
> I recommend the following reading: The Editorial + Letter from W4NUL/5 in
> the March 1976 AMSAT Newsletter, the AMSAT-OSCAR-7 QRP Test Telemetry
> Report in the November 1976 AMSAT Newsletter, and the June 1976 QRP Test
> Results from the December 1976 AMSAT Newsletter. All available here:
> http://www.ka9q.net/AMSAT-Newsletter-1976.pdf
> 
> Please calculate your ERP ( http://www.csgnetwork.com/antennaecalc.html )
> and keep it to no more than 100W.
> 
> 73,
> 
> Paul Stoetzer, N8HM
> Washington, DC
> 
> 
>> On Fri, Apr 25, 2014 at 11:12 AM, Dave Webb KB1PVH  wrote:
>> 
>> Only when people are running too much power. It's called FM'ing.
>> 
>> Dave-KB1PVH
>> 
>> Sent from my Verizon Wireless Droid RAZR
>>> On Apr 25, 2014 11:10 AM, "Peter Wilson"  wrote:
>>> 
>>> Just worked IK8YSS on AO-07.
>>> 
>>> 
>>> 
>>> Haven't worked this satellite for a while and whilst I know the bird is
>>> very
>>> old, the audio on this pass was very distorted.
>>> 
>>> 
>>> 
>>> Is this common?
>>> 
>>> 
>>> 
>>> Peter
>>> 
>>> G8KEK
>>> 
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>> program!
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[amsat-bb] Re: Help

[MICHAEL]

Hi Stephan!

AMSAT U.K. has a wealth of information on their website for beginners. You
may want to take a look there.

73's

 

Mike / N8GBU



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[amsat-bb] Re: AO-07 Distorted audio

[Rick Walter]

What about this cause?

Space Weather News for April 25, 2014
http://spaceweather.com

X-FLARE: On April 25th, an active region near the sun's western limb
erupted, producing an impulsive X-class solar flare.  A pulse of extreme UV
radiation from the flare ionized Earth's upper atmosphere and caused a
shortwave radio blackout on the dayside of Earth.   However, a CME hurled
into space by the explosion will miss our planet.  Check
http://spaceweather.com for updates.

Rick - WB3CSY


On Fri, Apr 25, 2014 at 12:32 PM, Alan  wrote:

> Peter,
>
> That can happen when the illumination is poor, but also if there is
> someone using too much power.
> They can bounce the entire transponder, resulting in very choppy,
> distorted audio.
>
> 73s,
>
> Alan
> WA4SCA
>
>
> <-Original Message-
>  <[mailto:amsat-bb-boun...@amsat.org] On Behalf Of Peter Wilson
><
>  <
> <
> <
><
> <
> <
>  <
> <
> <
>  <
>  <
> <___
> http://amsat.org/mailman/listinfo/amsat-bb
> <
>
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>



-- 
Sent from Rick's gmail account
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[amsat-bb] Re: AO-07 Distorted audio

[Bryce Salmi]

I wonder if it would be possible to build a system that used rssi to limit
each signal and act accordingly. I think ao40 had something similar.

A digit sat could be sent the tx power and use that in combination with
rssi to adjust itself too. Just some quick thoughts

Bryce

On Friday, April 25, 2014, Alan  wrote:

> Peter,
>
> That can happen when the illumination is poor, but also if there is
> someone using too much power.
> They can bounce the entire transponder, resulting in very choppy,
> distorted audio.
>
> 73s,
>
> Alan
> WA4SCA
>
>
> <-Original Message-
> 
> <[mailto:amsat-bb-boun...@amsat.org ] On Behalf Of Peter
> Wilson
>  
>  <
>  <
> <
> <
><
> <
> <
>  <
> <
> <
>  <
>  <
> <___
> . Opinions expressed are those
> of
>http://amsat.org/mailman/listinfo/amsat-bb
> <
>
> ___
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[amsat-bb] AO-07 an US station answer my call.

[LU2DPW Juan Carlos]

Hello to all

In recent AO-7 pass about 20:23 UTC in mode B, I'm calling in CW on 145952 down 
and copy an
W.. station answer me.

Thanks for your answer and please call me next Sunday in Mode B window to USA.

I work two US station in CW with distance record in 2008.

My elements are very simple: FT-726R with 10w input(I opined about 5w output)

Now my antennas: In tx: Diamond X-200 vertical and in Rx: 5 element Yagui home 
brew for 50Mhz.

In 2008 QSOs I'm using same X-200 in tx and Quad Swiss TET in rx.

73 de Juan - LU2DPW - GF05gi
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[amsat-bb] Re: HELP

[Mr. Stephen Thornber FRSPH FBCS CITP CISM]

Hello all,

Dan Cussen asked me to list kit and interests. 

IN THE SHACK.
Computer in the shack MAC PRO TOWER - With VMWare so I can run PC(XP) on the 
mac. (also got a couple of iPads ) the shack is finer connected networked to a 
synology disc station and there is a MacBookPro on the network in the house.

Older (first HF rig) Yaesu FT-817 UHF/VHF/HF Low power - currently used only 
for local 2mtr repeater.

KENWOOD TS 2000 VHF/UHF HF Has SAT features. No Antenna (Has separate VHF/UHF & 
1.2Ghz connectors ) currently I do not have suitable antenna awaiting ideas. 
HAS SignalLink connected and to Computer for Ham Radio Delux connection

ICOM IC7000 [AT-100ProII Autotuner] Connected to two G5RV Jr]

2 x SCS PTC-IIusb DSP Multimode PACTOR Controllers these have ability (Not that 
I know how in most cases) to do Pactor, amt or, rtty, fax/sstv, CW, Packet

Rotator is dead - so will buy new onadvice.

I can will change any / all of this configuration on advice 

I have a morse key and paddle but have NO morse.


More importantly is it worth doing any longer - I have listened for a long time 
and not heard much chit chat about satellite or space or radio astronomy.

As for what interests me - all sorts, just getting the stuff to work and talk 
voice or digitally to somebody else would be a good start. I want to know if 
there are sats that can be accessed regularly and relatively easily from the 
UK? Is there much activity. 

I would do weather stuff, moon bounce, data, packet, aprs or anything else for 
that matter if I could and understood (I mean i'm not stupid I do know some 
stuff) more about what was out there to do and get my teeth into. Is there any 
real research stuff worth doing and so the list goes on with the questions.

for Dave G4DPZ - I have a FunCube dongle, lost interest when I couldn't get 
anything out of it on day one… so perhaps you can help me get my monies worth 
their too.

Cheers all for the replies thus far.

Stephen G6SGA



Stephen Thornber
FRSPH  FBCS  CITP  CISM
Chair

Medanaid is a registered Charity https://medanaid.com/ 
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[amsat-bb] Re: AO-07 an US station answer my call.

[Paul Stoetzer]

I hope you do get in touch with the W station that answered you today and
work him.

For everyone who was following the AO-7 power discussion earlier: the X-200
has a specified gain of 8 dBi, with his specified power output of 5 watts,
that's about 19 watts ERP. That was enough to receive an answer from a
station at least 7,000 km away. That proves the point that you don't need
to crank the power up. Treat the old lady gently and she will reward you
with many great QSOs!

73,

Paul, N8HM


On Fri, Apr 25, 2014 at 5:22 PM, LU2DPW Juan Carlos wrote:

> Hello to all
>
> In recent AO-7 pass about 20:23 UTC in mode B, I'm calling in CW on 145952
> down and copy an
> W.. station answer me.
>
> Thanks for your answer and please call me next Sunday in Mode B window to
> USA.
>
> I work two US station in CW with distance record in 2008.
>
> My elements are very simple: FT-726R with 10w input(I opined about 5w
> output)
>
> Now my antennas: In tx: Diamond X-200 vertical and in Rx: 5 element Yagui
> home brew for 50Mhz.
>
> In 2008 QSOs I'm using same X-200 in tx and Quad Swiss TET in rx.
>
> 73 de Juan - LU2DPW - GF05gi
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[amsat-bb] Re: AO-07 Distorted audio

[i8cvs]

Hi Bryce,

Just to remember for the history:

AO40 uses LEILA wich continuously scanned the Mode-S
passband and superimposed an intermitted sound like a horn
over those uplink signal wich peaks where more than 10 dB
belove the beacon level.

In addition LEILA suppressed several dB and distorted those
uplink signals that do not reduced immediately their EIRP

73" de

i8CVS Domenico

- Original Message -
From: "Bryce Salmi" 
To: 
Cc: "Peter Wilson" ; 
Sent: Friday, April 25, 2014 10:37 PM
Subject: [amsat-bb] Re: AO-07 Distorted audio


> I wonder if it would be possible to build a system that used rssi to limit
> each signal and act accordingly. I think ao40 had something similar.
>
> A digit sat could be sent the tx power and use that in combination with
> rssi to adjust itself too. Just some quick thoughts
>
> Bryce

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[amsat-bb] ISEE-3 Reboot Project

[Ethan Waldo]

?This is just a friendly reminder that there are only about 3 1/2 weeks left to 
help fund the ISEE-3 Reboot Project http://spacecollege.org/isee3/ 
http://www.rockethub.com/42228 which is 
currently at 32% funding.  The orbit change maneuver must be completed by 
mid-June.

[http://d1tcpxgmtqbpd1.cloudfront.net/images/42228/1398449925-large.png]

ISEE-3 Reboot Project by Space College, Skycorp, and SpaceRef | RocketHub
ISEE-3/ICE spacecraft will soon fly by the Earth. NASA can't save it. With your 
support we will.
Read more...


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