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CX2SA > SATDIG 04.11.08 22:25l 578 Lines 19093 Bytes #999 (0) @ WW
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Sent: 081104/2018Z @:CX2SA.LAV.URY.SA #:46289 [Minas] FBB7.00e $:46289_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: "off topic" Intelsat Retires the Oldest Commercial
Communications Satellite (Nate Duehr)
2. Re: help with wisp (Gordon JC Pearce MM3YEQ)
3. Re: GO-32 Status? (Mineo Wakita)
4. Re^2: GO-32 Status? (Mineo Wakita)
5. Re: GS-5500 (Mike McConnell)
6. Re: Preamp advice, pse (Roger Kolakowski)
7. GO-32 Status (charter)
8. Re: help with wisp (laura halliday)
9. Re: help with wisp (Eric Christensen)
10. Re: help with wisp (cathrynham)
11. Re: help with wisp (Gordon JC Pearce MM3YEQ)
12. Re: GO-32 Status (Gould Smith)
----------------------------------------------------------------------
Message: 1
Date: Tue, 4 Nov 2008 01:07:04 -0700
From: Nate Duehr <nate@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: "off topic" Intelsat Retires the Oldest
Commercial Communications Satellite
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <0649F35C-D69F-4BD4-AFA9-C9362BA7AABE@xxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Nov 3, 2008, at 1:47 PM, robert@xxxxxxxxxxxxxx.xxx wrote:
> http://www.marketwatch.com/news/story/Intelsat-Retires-Oldest-Commercial-
Communications/story.aspx?guid=
> {CCEF7D1C-5BD8-450A-8F8D-6697C72A329B}
Something built in the days when "Quality Assurance" at most companies
was an attitude about how you did your work, not a department to be
blamed for missed ship dates.
;-)
Thanks for sharing the story.
--
Nate Duehr, WY0X
nate@xxxxxxxx.xxx
------------------------------
Message: 2
Date: Tue, 04 Nov 2008 08:32:08 +0000
From: Gordon JC Pearce MM3YEQ <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] Re: help with wisp
To: AMSAT-BB@xxxxx.xxx
Message-ID: <49100888.702@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Alan wrote:
> Sometimes "new" is not "improved" nor "current".
That's certainly true
> Lots of great freeware around such as HRD, UI-VIEW32, MMSSTV, and a
> bazillion logging programs and more.
Yes, but they're Windows-only, and there is no source code available. I
don't want to have to buy a very expensive piece of software (which is
closed-source, and therefore insecure and unmaintainable) to run another
piece of closed-source software.
> If you want to be on the bleeding edge and into open source go to
> sourceforge.net and sourceforge.com and do some searches, or, Google
> Linux/ham radio.
Exactly! You won't find much. What there is, is generally pretty
terrible - about the best thing out there is probably the soundmodem
software.
No-one seems to be terribly keen to give up their secrets, either. I've
been trying to get a description of the packet format for APRS-IS for a
while, with pretty much no success. It's not on the APRS-IS website
(there's a guide for the commands to pass to the server for enabling
filters, but that's about it for the "developer guide"), and the only
email response I've had back about it is "Only people developing APRS
software need to know about that" - which I thought was rather the point!
Gordon
------------------------------
Message: 3
Date: Tue, 04 Nov 2008 18:58:37 +0900
From: Mineo Wakita <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re: GO-32 Status?
To: amsat-bb@xxxxx.xxx
Message-ID: <21C93E63E86C3Bei7m-wkt@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=us-ascii
I can't digipeat via GO-32 yet,
but I could access to GO-32 PBBS yesterday using WiSP.
JE9PEL, Mineo Wakita
------------------------------
Message: 4
Date: Tue, 04 Nov 2008 19:01:05 +0900
From: Mineo Wakita <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re^2: GO-32 Status?
To: amsat-bb@xxxxx.xxx
Message-ID: <22C93E64408FCEei7m-wkt@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=us-ascii
http://www.ne.jp/asahi/hamradio/je9pel/81103g32.jpg
JE9PEL, Mineo Wakita
------------------------------
Message: 5
Date: Tue, 4 Nov 2008 06:35:07 -0600
From: "Mike McConnell" <w0pd@xxxxx.xxx>
Subject: [amsat-bb] Re: GS-5500
To: <amsat-bb@xxxxx.xxx>
Message-ID: <004601c93e79$c5840ba0$508c22e0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Personally, I like SatPC-32. It works very well with my ST-1 interface to my
G-5500 rotator controller and my IC-910. I also use Trx-Manager for my HF
radios.
Mike McConnell, Ph.D.
W0PD
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Dave
Sent: Monday, November 03, 2008 10:19 PM
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] GS-5500
Hi group,
I have a GS-5500 and both 2m and 70cm (436CP) M-squared antennas. I see a
lot of traffic about problems with interconnects between radios and
software, so I thought I'd ask what a really nice workable combo would be.
What radio works nice with Sat32PC when doing various satellite work? Should
I get two radios, one for each band?
73,
Dave
_______________________________________________
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: Tue, 4 Nov 2008 07:26:30 -0500
From: "Roger Kolakowski" <rogerkola@xxx.xxx>
Subject: [amsat-bb] Re: Preamp advice, pse
To: "i8cvs" <domenico.i8cvs@xxx.xx>, <tjjapha@xxxxxxxxx.xxx>,
"AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <006601c93e78$91039ae0$0200a8c0@xxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Nice explanation Dominico!
Roger
WA1KAT
----- Original Message -----
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: <tjjapha@xxxxxxxxx.xxx>; "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Sent: Tuesday, November 04, 2008 1:31 AM
Subject: [amsat-bb] Re: Preamp advice, pse
> ----- Original Message -----
> From: "ANTHONY JAPHA" <tjjapha@xxxxxxxxx.xxx>
> To: <amsat-bb@xxxxx.xxx>
> Sent: Tuesday, November 04, 2008 12:45 AM
> Subject: [amsat-bb] Preamp advice, pse
>
> > Bird Lovers,
> > Pse let me have advice on which of the following ARR 2 mtr preamps I
> should get: P144VDA: 1.0db nf, 15 db gain; or P144VDG: 0.5db nf, 24db
gain.
> >
> > The preamp will be used primarily for AO-7. I operate only portable in
a
> > high noise environment here in Manhattan. I doubt the nf difference is
at
> > all meaningful in my use. The large difference in gain between the 2
> > preamps may not be impt. either, that is the real question. My XCVR is
> > the FT-817. Another 817 is used to transmit, running abt 15-20 watts
into
> > a small amp. with an Arrow split between 2 booms on 2 tripods only abt.
1
> > ft. from each other.
> >
> > So what's the verdict?
> >
> > Tnx and 73,
> > Tony, N2UN
> >
> Hi Tony, N2UN
>
> Do you remember our QSO via FO-29 on 21 april 2008 ? You writes to to me
>
> > Domenico
> > I thought you might like to see a photo of the station used to make our
> > QSO. It is attached. The Triborough Bridge and Hell Gate Bridge are in
> > the background. The station is on a promenade next to the East River, 2
> > miles north of the United Nations.
> > 73,
> > Tony
>
> I am looking at the photo of your location and I see that you are living
in
> an urban area in which the man made noise temperature at 145 MHz is at
> best a minimum of 10.000 kelvin
>
> The sensitivity of a FT-817 at 144 MHz is specified to be 0.25 uV but the
> manufacturer do not refere for what ratio in dB
>
> Supposing that the sensitivity is 0.25 uV for a S/N ratio of 10 dB then
the
> corresponding computed Noise Figure of a FT-817 is 11 dB at 144 MHz
> corresponding to a noise temperature of 3360 kelvin
>
> Assuming from the photo that you are using 10 feet only of RG213 to
connect
> the output of your preamplifier to the input of your FT-817 then the loss
> of 0.25 dB at 145 MHz introduced by the above coax cable can be omitted
> in our calculation.
>
> If you use a preamplifier with NF= 1 dB and Gain 15 dB in front of your
> FT-817 then the overall Noise Figure of your receiving system becomes
> 2 dB corresponding to a noise temperature of 170 kelvin
>
> If you use a preamplifier with NF= 0.5 dB and Gain = 24 dB in front of
> your FT-817 then the overall Noise Figure of your receiving system becomes
> 0.7 dB corresponding to a noise temperature of 51 kelvin
>
> The improvement in S/N using a FT-817 with in front of it a preamplifier
of
> NF= 0.5 dB versus a preamplifier with NF = 1 dB in the New York City area
> with a man made noise of 10.000 kelvin will be only
> (10.000 + 170) / ( 10.000 + 51) = 0.05 dB i.e. a insignificant
improvement.
>
> You cannot see the improvement between preamplifiers because the man made
> noise of 10.000 kelvin on your antenna predominates but if you go in a
> country location where the man made noise is only 200 kelvin at 145 MHz
then
> the improvement in S/N using your FT-817 with a 0.5 dB NF preamplifier
> versus a 1 dB NF preamplifier will rise to (200 + 170) / (200/ 51) = 1.7
dB
>
> In conclusion using preamplifiers with 0.5 dB or 1 dB Noise Figure in
front
> of a FT-817 in the New Yok City area the advantage is basically ZERO but
it
> rises to 1.7 dB if you go in the country area very far from the city.
>
> On the other side:
>
> If you use the FT-817 alone in New York City area versus the FT-817 + the
> preamplifier with NF= 1 dB then the improvement in S/N will be
> (10.000 + 3360 ) / ( 10.000 + 170 ) = 1.18 dB
>
> If you use the FT-817 alone in New York City versus the FT-817 + the
> preamplifier with NF= 0.5 dB then the improvement will be
> (10.000 +3360) / ( 10.000 + 51) = 1.23 dB
>
> You cannot see too much difference with or not preamplifier because again
> here the antenna temperature of 10.000 kelvin in New York City
predominates
> and again the improvement with one or the other preamplifier is only
> 1.23-1.18 = 0.05 dB i.e. inexistent
>
> But if you go in a country area where the man made noise is only 200
kelvin
> then the improvement in S/N using a FT-817 alone versus a FT-817 + in
front
> of it a 1 dB NF preamplifier will rise to : (200 + 3360) / ( 200 + 170) =
10
> dB wich is a great improvement ! !
>
> Identically if in a country area you use a FT-817 alone versus a FT-817 +
in
> front of it a 0.5 dB NF preamplifier then the improvement in S/N will rise
> to (200 + 3360 ) / ( 200 + 51) = 11. 5 dB
>
> In this situation where the antenna temperature do not predominates then
> the difference in the improvements 11.5-10 = 1.5 dB is greater than the
> difference between the Noise Figure of the preamplifiers 1-0.5 = 0.5 dB
>
> In conclusion since using a FT-817 with a 0.5 dB NF preamplifier In the
New
> York City area the improvement in S/N versus the FT-817 alone is only
> 1.23 dB I suggest you do not use a preamplifier but to use an antenna with
a
> greater gain of at least 3 dB
>
> I hope to contact you via AO-7 wich is easier than our previous QSO via
> FO-29
>
> 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, 4 Nov 2008 08:40:02 -0600
From: "charter" <willmarbrowns@xxxxxxx.xxx>
Subject: [amsat-bb] GO-32 Status
To: <amsat-bb@xxxxx.xxx>
Message-ID: <90CCCBAA732C43E4B8479E5E17BF0794@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Has any one been able to download the directory?
I see calls in the que all looking for directory updates.
Wondering if I'm the only one?
Nice to see the sat back in action again...
Bruce ke0lx
30873
------------------------------
Message: 8
Date: Tue, 4 Nov 2008 08:41:13 -0800
From: laura halliday <marsgal42@xxxxxxx.xxx>
Subject: [amsat-bb] Re: help with wisp
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BAY119-W1171E15C27F35239574E47AE1C0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Gordon wrote about WiSP and some other programs:
> Yes, but they're Windows-only, and there is no source code available. I
> don't want to have to buy a very expensive piece of software (which is
> closed-source, and therefore insecure and unmaintainable) to run another
> piece of closed-source software.
If you see a need, start writing. This software doesn't appear
magically, out of nowhere. Somebody has to write it. Why can't
that somebody be you?
Laura Halliday VE7LDH "Que les nuages soient notre
Grid: CN89mg pied a terre..."
ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte
_________________________________________________________________
------------------------------
Message: 9
Date: Tue, 04 Nov 2008 11:57:20 -0500
From: Eric Christensen <eric@xxxxxxxxxxxxxxxx.xx>
Subject: [amsat-bb] Re: help with wisp
To: amsat-bb@xxxxx.xxx
Message-ID: <1225817840.7017.33.camel@xxxxxxx.xxxxxxxxxxxxxxxx.xx>
Content-Type: text/plain
There is actually a piece of open-source software out there that was
similar to WiSP, I think. I found it while looking for something else a
few weeks ago and haven't done any investigation on it.
Check out PACSAT tools at http://www.qsl.net/kd2bd/ and please let me
know how you make out with it.
73,
Eric W4OTN
On Tue, 2008-11-04 at 08:41 -0800, laura halliday wrote:
> Gordon wrote about WiSP and some other programs:
>
> > Yes, but they're Windows-only, and there is no source code available. I
> > don't want to have to buy a very expensive piece of software (which is
> > closed-source, and therefore insecure and unmaintainable) to run another
> > piece of closed-source software.
>
> If you see a need, start writing. This software doesn't appear
> magically, out of nowhere. Somebody has to write it. Why can't
> that somebody be you?
>
> Laura Halliday VE7LDH "Que les nuages soient notre
> Grid: CN89mg pied a terre..."
> ICBM: 49 16.05 N 122 56.92 W - Hospital/Shafte
> _________________________________________________________________
>
> _______________________________________________
> 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, 04 Nov 2008 09:11:55 -0800
From: cathrynham <cathrynm@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: help with wisp
To: laura halliday <marsgal42@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4910825B.1050203@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
laura halliday wrote:
> Gordon wrote about WiSP and some other programs:
>
>> Yes, but they're Windows-only, and there is no source code available. I
>> don't want to have to buy a very expensive piece of software (which is
>> closed-source, and therefore insecure and unmaintainable) to run another
>> piece of closed-source software.
>>
>
> If you see a need, start writing. This software doesn't appear
> magically, out of nowhere. Somebody has to write it. Why can't
> that somebody be you
Is pbpg still being developed? wasn't that open source? This might be
a good start, if not. I always thought the pacsat
protocol was a very interesting concept and is a piece of technology
that deserves to live on. Maybe even
has uses for distributing content via low bandwidth channels on other
ham bands. It'd be nice, maybe
to have a raw library that just did the pacsat protocol alone, without
all the other stuff, as a basis for building
other apps. With a single common cross-platform library as the basis
for pacsat protocol programs, that
would allow us to more easily improve the system, by updating the
library, and then everyone's application is
upgraded. (This of course, would take some time to build, which
unfortunately, I have none of -- baah, for
real life interfering with such plans.)
With libraries for the 'weird stuff' then, I think more user apps would
pop up. Hamlib, I believe is
a good example,and is still maintained, as far as I know.
------------------------------
Message: 11
Date: Tue, 04 Nov 2008 17:35:44 +0000
From: Gordon JC Pearce MM3YEQ <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] Re: help with wisp
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Message-ID: <491087F0.2000104@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
laura halliday wrote:
> Gordon wrote about WiSP and some other programs:
>
>> Yes, but they're Windows-only, and there is no source code available. I
>> don't want to have to buy a very expensive piece of software (which is
>> closed-source, and therefore insecure and unmaintainable) to run another
>> piece of closed-source software.
>
> If you see a need, start writing. This software doesn't appear
> magically, out of nowhere. Somebody has to write it. Why can't
> that somebody be you?
I'll just add that to the dozen or so other open-source projects I
actively maintain, then ;-)
Seriously, I'm quite happy to kick off a project if others are willing
to share some of the work. I really wanted a decent APRS client for
Linux, and I thought that maybe an APRS-IS viewer would be a great way
forwards. No-one seems to be terribly forthcoming with the APRS-IS
protocol, though.
Gordon
------------------------------
Message: 12
Date: Tue, 4 Nov 2008 14:45:23 -0500
From: "Gould Smith" <gouldsmi@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: GO-32 Status
To: "charter" <willmarbrowns@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <4D1D47B8C88E4476BAB6DDE84B5959D3@xxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi Bruce,
I was having the same problems. I did get one new directory entry for file,
7E64. WiSP says I have 7% of it. I got OK to virtually every request, but
little to no data. I know the equipment is fine, as I did two passes on
AO-51 digital this morning
I also was requesting some files that were no longer available, and got an
OK rather than a NO -2 error message.
The BB task is not operating correctly.
73,
Gould, WA4SXM
----- Original Message -----
From: "charter" <willmarbrowns@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Tuesday, November 04, 2008 9:40 AM
Subject: [amsat-bb] GO-32 Status
> Has any one been able to download the directory?
> I see calls in the que all looking for directory updates.
> Wondering if I'm the only one?
> Nice to see the sat back in action again...
> Bruce ke0lx
> 30873
> _______________________________________________
> 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 3, Issue 572
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