| |
CX2SA > SATDIG 27.03.12 21:14l 319 Lines 10563 Bytes #999 (0) @ WW
BID : AMSATBB7100
Read: GUEST
Subj: AMSAT-BB-digest V7 100
Path: IZ3LSV<IK2XDE<DB0RES<PI8CDR<VE2PKT<F1BBI<CX2SA
Sent: 120327/1903Z @:CX2SA.SAL.URY.SA #:56043 [Salto] FBB7.00e $:AMSATBB7100
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. WRAL TV News - ARISS Contact (Trevor .)
2. VO-52 Frequency Drift (John Papay)
3. CM2ESP operation today (Raydel Abreu Espinet (CM2ESP))
4. Power Plug for a RFC 2-317 (William Liporace - WC2L)
5. Re: Power Plug for a RFC 2-317 (Floyd Rodgers)
6. Re: Power Plug for a RFC 2-317 (Stephen E. Belter)
7. Re: Power Plug for a RFC 2-317 (N0JY)
8. Re: VO-52 Frequency Drift (David Palmer KB5WIA)
----------------------------------------------------------------------
Message: 1
Date: Mon, 26 Mar 2012 20:51:20 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] WRAL TV News - ARISS Contact
Message-ID:
<1332791480.60879.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Salem Elementary got some good publicity for their ARISS contct, see
http://www.uk.amsat.org/6095
73 Trevor M5AKA
------------------------------
Message: 2
Date: Tue, 27 Mar 2012 11:41:11 -0400
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] VO-52 Frequency Drift
Message-ID: <388273.9471.bm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
There were three passes of VO-52 here this morning, 27March2012.
I was able to copy the beacon on all three passes. Here are the
results:
1200utc 145862.6
1335utc 145861.7
1510utc 145861.9
The frequencies are not exact. My CW offset is 850Hz. There is
significant frequency drift and temperature is probably the cause.
It would be interesting to hear from the control team regarding
this.
HO-68 provides an excellent check of your doppler compensation in
your tracking program. I find that the beacon is always very strong
and the frequency is rock solid. You can save the frequency in your
program and a month later find that it is right where it was the month
before. If you can listen to the beacon with your CW filter on throughout
the entire pass, you have everything set right, keps, computer clock etc.
The doppler gets quite severe on a high pass and is a great way to make
sure you have everything set right. Since HO-68 is on UHF, everything
becomes more critical.
73,
John K8YSE
------------------------------
Message: 3
Date: Tue, 27 Mar 2012 10:53:58 -0500
From: "Raydel Abreu Espinet \(CM2ESP\)" <cl2esp@xxxxxx.xx.xx>
To: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] CM2ESP operation today
Message-ID: <9ED61BAA506B4022BDC283578644F07F@xxxxxx>
Content-Type: text/plain; charset="Windows-1252"
Hi all,
I will be at home today, i hope to work AO-27 on today pass at 18:35 UTC
aprox. And probable, but not for sure, may be also on SO-50 at 16:30 UTC
aprox. If anyone need EL83 just give me a call.
73,
CM2ESP,
Havana, EL83sc
Este mensaje ha sido enviado mediante el servicio de correo electronico que
ofrece la Federacion de Radioaficionados de Cuba a sus miembros para
respaldar el cumplimiento de los objetivos de la organizacion y su politica
informativa. La persona que envia este correo asume el compromiso de usar el
servicio a tales fines y cumplir con las regulaciones establecidas.
------------------------------
Message: 4
Date: Tue, 27 Mar 2012 12:16:07 -0400
From: "William Liporace - WC2L" <wc2l@xxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Power Plug for a RFC 2-317
Message-ID: <007801cd0c34$eb015c20$c1041460$@xxx>
Content-Type: text/plain; charset="us-ascii"
Does anyone have a spare power plug for a RFC 2-317 AMP?
TNX Will WC2L
------------------------------
Message: 5
Date: Tue, 27 Mar 2012 11:41:32 -0500
From: Floyd Rodgers <kc5qbc@xxxxxx.xxx>
To: William Liporace - WC2L <wc2l@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Power Plug for a RFC 2-317
Message-ID: <4F71EDBC.7020506@xxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I believe it is a standard cinch-jones plug. I ahve one of these with an
exploded transistor on the receive side. If I send you a picture, could
you open yours and get the info off the transistor in yours? Sadly I
don't have a spare power lead.
------------------------------
Message: 6
Date: Tue, 27 Mar 2012 12:53:30 -0400
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
To: "'William Liporace - WC2L'" <wc2l@xxxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Power Plug for a RFC 2-317
Message-ID:
<51668A33220E754EABE6583357ECEE2D01C2151D6A@xxxxxxxx.xxxxxx.xxxxx>
Content-Type: text/plain; charset="us-ascii"
Will,
I also believe it is a standard Cinch Jones plug, probably #S-304H-CCT.
Mouser carries them for $4.20 each, page 2568 of their on-line catalog.
The last time I bought one (many years ago), Radio Shack carried them. But
I don't see it online.
73, Steve N9IP
--
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of William Liporace - WC2L
Sent: Tuesday, March 27, 2012 12:16 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Power Plug for a RFC 2-317
Does anyone have a spare power plug for a RFC 2-317 AMP?
TNX Will WC2L
_______________________________________________
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, 27 Mar 2012 12:26:11 -0500
From: N0JY <n0jy@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Power Plug for a RFC 2-317
Message-ID: <4F71F833.8020805@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
That's what I got for mine, the Mouser one.
73,
Jerry
N0JY
On 3/27/2012 11:53 AM, Stephen E. Belter wrote:
> Will,
>
> I also believe it is a standard Cinch Jones plug, probably #S-304H-CCT.
Mouser carries them for $4.20 each, page 2568 of their on-line catalog.
>
> The last time I bought one (many years ago), Radio Shack carried them.
But I don't see it online.
>
> 73, Steve N9IP
> --
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of William Liporace - WC2L
> Sent: Tuesday, March 27, 2012 12:16 PM
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Power Plug for a RFC 2-317
>
> Does anyone have a spare power plug for a RFC 2-317 AMP?
>
>
>
> TNX Will WC2L
>
> _______________________________________________
> 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
>
>
______________________________________________________________________________
______
> Use the link below to report this message as spam.
> https://lavabit.com/apps/teacher?sig=2920953&key=2140004334
>
______________________________________________________________________________
______
>
------------------------------
Message: 8
Date: Tue, 27 Mar 2012 11:45:38 -0700
From: David Palmer KB5WIA <kb5wia@xxxxx.xxx>
To: John Papay <john@xxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: VO-52 Frequency Drift
Message-ID:
<CAO-vtPN=_en+2yjAwB8QkKSO0rEXH1tqhbxJiLjpn9nFux_+nA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Nice observations there, John. I too have noticed frequency drift of
a similar magnitude to what you describe below. Just about every time
I work a VO-52 pass I need to reset the frequency calibration on
SatPC32 up or down a few hundred Hz.
One thing I thought was interesting from last night's overhead pass
(3/27/2012 around 0320z) was that close to mid-pass, there seemed to
suddenly be a very large amount of noise (almost sounding like hash
from a microwave oven) coming through the passband. At the time, I
was the only station on the sat, calling CQ with my 0.5 watts, and a
very nice quiet clean downlink. When the noise came, it virtually
drowned out my input signal, even going up to 5 watts. The noise
lasted about 30 seconds and then faded out -- it seemed to occupy most
of the passband. After the noise dissipated, I was surprised that I
had to reset my SatPC32 calibration by about 200 Hz. I found this
really interesting, the seeming coincidence between the noise and the
frequency offset changing rather suddenly during a pass. The
graphical plot of the sat path showed it starting the pass just barely
touching the sun line, and ending with the footprint a good ways in --
maybe as the satellite entered more sun exposure its temp increased,
causing the freq shift and possibly a bit of oscillation causing the
noise?? Could just have been me, of course, but it would be
interesting if anyone else has noticed these things.
Dave KB5WIA
On Tue, Mar 27, 2012 at 8:41 AM, John Papay <john@xxxxxx.xxx> wrote:
> There were three passes of VO-52 here this morning, 27March2012.
> I was able to copy the beacon on all three passes. ?Here are the
> results:
> 1200utc 145862.6
> 1335utc 145861.7
> 1510utc 145861.9
>
> The frequencies are not exact. My CW offset is 850Hz. ?There is
> significant frequency drift and temperature is probably the cause.
> It would be interesting to hear from the control team regarding
> this.
>
> HO-68 provides an excellent check of your doppler compensation in
> your tracking program. ?I find that the beacon is always very strong
> and the frequency is rock solid. ?You can save the frequency in your
> program and a month later find that it is right where it was the month
> before. ?If you can listen to the beacon with your CW filter on throughout
> the entire pass, you have everything set right, keps, computer clock etc.
> The doppler gets quite severe on a high pass and is a great way to make
> sure you have everything set right. ?Since HO-68 is on UHF, everything
> becomes more critical.
>
> 73,
> John K8YSE
------------------------------
_______________________________________________
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 100
****************************************
Read previous mail | Read next mail
| |
