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CX2SA > SATDIG 17.03.08 23:00l 845 Lines 27483 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Replacement Switch for Yaesu G-5500 Controller (Eduardo Jacob)
2. Re: 220 MHz Radios and Region 2 Hams (Edward Cole)
3. Re: Presentation for hamfest (Clint Bradford)
4. 2-to-1 spliiter with DC pass? (Jeff Mock)
5. Re: 2-to-1 spliiter with DC pass? (Jim Jerzycke)
6. Re: presentation for hamfest (Bruce Robertson)
7. AO-51 transmitter shut down? (Charles Reiche)
8. Re: AO-51 transmitter shut down? (Andrew Glasbrenner)
9. Field Day 2008 Rules (correction) (Bruce)
10. Re: AO-51 transmitter shut down? (Andrew Koenig)
11. Oldest Man-made object in space 50 years old today
(Daniel Schultz)
12. Re: Teaspoons !!!!. (John Hackett)
13. OSCAR-11 Report (Clive Wallis)
14. Re: Predict 2.2.3 for Linux (Bruce Robertson)
15. sound card (w7lrd(AT)comcast.net)
----------------------------------------------------------------------
Message: 1
Date: Sun, 16 Mar 2008 21:14:53 +0100
From: "Eduardo Jacob" <ej.jacob(AT)gmail.com>
Subject: [amsat-bb] Replacement Switch for Yaesu G-5500 Controller
To: amsat-bb(AT)amsat.org
Message-ID:
<9172b8c70803161314o2cc44c30jf584c526f1141063(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi
A switch for our faculty0s club Yaesu G-5500 Controller is broken. We have
put another one but I would like to know of it's possible to get a
replacement for aesthetic view. Sent a message to Yaesu with no answer.
Any ideas?
Best regards and thank you
Eduardo/EA2BAJ
------------------------------
Message: 2
Date: Sun, 16 Mar 2008 14:01:23 -0800
From: Edward Cole <kl7uw(AT)acsalaska.net>
Subject: [amsat-bb] Re: 220 MHz Radios and Region 2 Hams
To: <amsat-bb(AT)amsat.org>
Message-ID: <200803162201.m2GM1NDf093253(AT)malik.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 01:07 AM 3/16/2008, Trevor wrote:
>Over 40 DXCC countries have an Amateur band at 70 MHz but that
>suffers from the
>same lack of commercial rigs as 220 in the states.
>
>I feel that unless an Amateur band is available globally it's just
>not going to
>be worth any manufacturer producing rigs for it. So it'll be up to Amateurs
to
>design and build their own rigs for their "local" bands.
>
>73 Trevor M5AKA
Which was brought home for me when I recently bought the MFJ-269
Antenna Analyzer: covers 1.8-170; 415-470 MHz which nicely skips the
222-MHz band. Oh well it will be quite useful for the frequencies it
does cover.
*****************************************************
73, Ed - KL7UW BP40iq, 6m - 3cm
144-EME: FT-847, mgf-1801, 4x-xp20, 185w
http://www.kl7uw.com AK VHF-Up Group
NA Rep. for DUBUS: dubususa(AT)hotmail.com
*****************************************************
------------------------------
Message: 3
Date: Sun, 16 Mar 2008 15:02:05 -0700
From: Clint Bradford <clintbrad4d(AT)earthlink.net>
Subject: [amsat-bb] Re: Presentation for hamfest
To: amsat-bb(AT)amsat.org
Message-ID: <42B8E599-B5D5-4211-8ACC-2972E5E36D94(AT)earthlink.net>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
Anyone is welcome to download and print out my 4-page tutorial,
"Working Ham Sats with Your HT"...
If you have a print utility that makes brochures, you can get it all
on one page, duplex printing.
http://homepage.mac.com/clintbradford/FileSharing1.html
Clint Bradford, K6LCS / KAF3359
909-241-7666
------------------------------
Message: 4
Date: Sun, 16 Mar 2008 15:23:50 -0700
From: Jeff Mock <jeff(AT)mock.com>
Subject: [amsat-bb] 2-to-1 spliiter with DC pass?
To: amsat-bb(AT)amsat.org
Message-ID: <47DD9DF6.4010304(AT)mock.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I have an Icom 910, the preamp control is very convenient for turning on
masthead preamps. I also have an Icom R8500 comm receiver and I would
like to do a little hacking with the 10.7MHz IF output of the R8500
using the same antenna feed as the IC-910.
So, is there a 2-1 splitter available that will pass DC from the 910 to
the antenna but not to the other receiver? Also some sort of
arrangement that doesn't blow up the R8500 would be kind of nice in case
I accidentally key the 910 transmitter.
thanks,
jeff
AD6EO
------------------------------
Message: 5
Date: Sun, 16 Mar 2008 16:28:25 -0700 (PDT)
From: Jim Jerzycke <kq6ea(AT)pacbell.net>
Subject: [amsat-bb] Re: 2-to-1 spliiter with DC pass?
To: Jeff Mock <jeff(AT)mock.com>, amsat-bb(AT)amsat.org
Message-ID: <678414.83682.qm(AT)web80605.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Most of the two-way splitters I've seen have one port
that passes DC, and one port with a series capacitor
that blocks it. A simple check with an ohmmeter will
tell you what you have.
Somebody (DEMI?) made a "Receiver Protector" for use
with downconverters that would do what you want.
Jim KQ6EA
--- Jeff Mock <jeff(AT)mock.com> wrote:
> I have an Icom 910, the preamp control is very
> convenient for turning on
> masthead preamps. I also have an Icom R8500 comm
> receiver and I would
> like to do a little hacking with the 10.7MHz IF
> output of the R8500
> using the same antenna feed as the IC-910.
>
> So, is there a 2-1 splitter available that will pass
> DC from the 910 to
> the antenna but not to the other receiver? Also
> some sort of
> arrangement that doesn't blow up the R8500 would be
> kind of nice in case
> I accidentally key the 910 transmitter.
>
> thanks,
> jeff
> AD6EO
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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: Sun, 16 Mar 2008 22:13:55 -0300
From: "Bruce Robertson" <ve9qrp(AT)gmail.com>
Subject: [amsat-bb] Re: presentation for hamfest
To: "Nick Pugh" <quadpugh(AT)bellsouth.net>, amsat-bb(AT)amsat.org
Message-ID:
<49657a760803161813u137bb575kc7f7ee8851f56ed9(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On Sat, Mar 15, 2008 at 10:57 AM, Bob Bruninga <bruninga(AT)usna.edu> wrote:
> > I am looking for power point presentation
> > suitable for a hamfest forum..
>
> The #1 point I make at hamfests are:
> 1) You dont need special antennas
> 2) You dont need elevation rotatros
> 3) You dont need tracking software
> 4) Just operate from your mobile FM or APRS rig anytime you are commuting
or otherwise in the car.
>
> AO51 sked repeats every 5 days, and GO-32 every 9 days. A simple table on
your dashboard will give you pass times for months... See
> http://www.ew.usna.edu/~bruninga/MobileLEOtracking.html
>
>
> But there are a few more slides in my general APRS presentation at the end
that also show why elevation is simply not required. In fact, I should cut
them out into an AMSAT presentation just for this purpose.
>
> get the power point link at the top of this page:
> http://www.ew.usna.edu/~bruninga/aprs.html
>
If you'd like a video to demonstrate Bob's point (but with respect to
CW birds), see:
http://video.google.com/videoplay?docid=1251407580465862002
You can remind them that a whack of such birds are likely to be
launched in April. Old hands at CW might be interested in helping out
international university students as they make their first steps into
space.
If you can bring along an FT-817 with a homebrew groundplane antenna
fixed to a BNC or PL259 connector, and if any of the louder CW birds
is coming by during the event, then set it on the desk tuned to the
d/l frequency with the volume turned very low. If you get reception in
the building in which you're doing the class, then turn up the volume
and let people have fun tuning doppler, etc.
I second the comments made further down the thread about the ARRL
Handbook. Could our board members make a friendly offer to ARRL to
rewrite that section of the Handbook in light of the current LEO
situation?
73, Bruce
VE9QRP
------------------------------
Message: 7
Date: Sun, 16 Mar 2008 22:14:40 -0400
From: "Charles Reiche" <reichec(AT)verizon.net>
Subject: [amsat-bb] AO-51 transmitter shut down?
To: <amsat-bb(AT)amsat.org>
Message-ID: <000801c887d4$a89b36a0$0201a8c0(AT)desk>
Content-Type: text/plain; charset="iso-8859-1"
On the "gut pass" (as I like to call it), right up the middle of the USA at
Mar 17 ~0040Z the ao-51 435.300 transmitter shut off for an estimated 5-10
seconds, enough for me to stare at my computer and radio to wonder if I hit a
button, then it came back and I heard K7WIN and i believe N5AFV verify that it
indeed happened.
Was it just being programed by a ground station at that time or is it
something we should continue to watch for?
I did not have a recording of it, maybe someone else does.
N3CRT
Charlie
------------------------------
Message: 8
Date: Sun, 16 Mar 2008 22:46:48 -0400
From: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>
Subject: [amsat-bb] Re: AO-51 transmitter shut down?
To: "Charles Reiche" <reichec(AT)verizon.net>, <amsat-bb(AT)amsat.org>
Message-ID: <35AEA6C3CD1046B380DB71BBF23EE38C(AT)Andrewlaptop>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
You were not hearing things. I was in the midst of changing modes when that
happened, my apologies, and don't be alarmed. AO-51 is fine.
73, Drew KO4MA
----- Original Message -----
From: "Charles Reiche" <reichec(AT)verizon.net>
To: <amsat-bb(AT)amsat.org>
Sent: Sunday, March 16, 2008 10:14 PM
Subject: [amsat-bb] AO-51 transmitter shut down?
> On the "gut pass" (as I like to call it), right up the middle of the USA
> at Mar 17 ~0040Z the ao-51 435.300 transmitter shut off for an estimated
> 5-10 seconds, enough for me to stare at my computer and radio to wonder if
> I hit a button, then it came back and I heard K7WIN and i believe N5AFV
> verify that it indeed happened.
>
> Was it just being programed by a ground station at that time or is it
> something we should continue to watch for?
>
> I did not have a recording of it, maybe someone else does.
>
>
> N3CRT
> Charlie
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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: 9
Date: Sun, 16 Mar 2008 23:33:56 -0500
From: Bruce <kk5do(AT)arrl.net>
Subject: [amsat-bb] Field Day 2008 Rules (correction)
To: amsat-bb(AT)amsat.org
Message-ID: <47DDF4B4.10503(AT)arrl.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I had made a mistake and did not show AO16 as a single channel FM
satellite even though the downlink is DSB (I showed it as if it were
like FO29 and AO7 .... multi-user). I have updated the rules on my
website and they will shortly be updated at amsat.org. I think I got the
correction in to the editor in time for the change to be made in the
journal.
73...bruce
--
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Manager (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on SkyScanner Satellite Radio Network on Galaxy-
25 (AT)97? West,
Transponder 23 (12115 Vert), Symbol Rate: 22425, APID: 1794 (DVB Free To Air)
Also streaming MP3 at http://www.amsatnet.com
Latest satellite news on the ARRL Audio News
http://www.arrl.org
------------------------------
Message: 10
Date: Sun, 16 Mar 2008 21:47:38 -0500
From: "Andrew Koenig" <andrewkoenig(AT)thathamkid.com>
Subject: [amsat-bb] Re: AO-51 transmitter shut down?
To: "Charles Reiche" <reichec(AT)verizon.net>
Cc: amsat-bb(AT)amsat.org
Message-ID:
<2f52b89b0803161947i990cabbj4fccbab0aa9ce415(AT)mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
I heard the same thing... I'm working with an improvised setup (see the link
below), and I was wondering what happened. My first guess was my rig,
considering it is just a whip antenna on a FT-60, but now that you mention
it, I think it was the AO-51.
This is a pic of me working the AO-51 on top of my monkey bars (they were
awesome when I was 5, but now that I'm 14 they make a good "perch" for
working the birds) and you can see my rig there too:
http://log.thathamkid.com/pics/IMG_5816.JPG
On Sun, Mar 16, 2008 at 9:14 PM, Charles Reiche <reichec(AT)verizon.net>
wrote:
> On the "gut pass" (as I like to call it), right up the middle of the USA
> at Mar 17 ~0040Z the ao-51 435.300 transmitter shut off for an estimated
> 5-10 seconds, enough for me to stare at my computer and radio to wonder if I
> hit a button, then it came back and I heard K7WIN and i believe N5AFV verify
> that it indeed happened.
>
> Was it just being programed by a ground station at that time or is it
> something we should continue to watch for?
>
> I did not have a recording of it, maybe someone else does.
>
>
> N3CRT
> Charlie
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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
>
--
73's
Andrew K.
KE5GDB
VP of the Clear Lake Amateur Radio Club
http://www.thathamkid.com
------------------------------
Message: 11
Date: Mon, 17 Mar 2008 01:34:31 -0400
From: "Daniel Schultz" <n8fgv(AT)usa.net>
Subject: [amsat-bb] Oldest Man-made object in space 50 years old
today
To: <amsat-bb(AT)amsat.org>
Message-ID: <031mcqFhf7606S03.1205732071(AT)cmsweb03.cms.usa.net>
Content-Type: text/plain; charset=ISO-8859-1
Vanguard 1, the oldest satellite still in orbit, turns 50 years old today. It
is estimated to have made 196,990 revolutions of the earth and traveled 10.5
billion kilometers, about 1.5 times the distance to Pluto.
1 00005U 58002B 08075.92633413 +.00000078 +00000-0 +12198-3 0 02678
2 00005 034.2528 327.4245 1846497 023.9793 343.6731 10.83896434719370
The rocket body is also still in orbit:
1 00016U 58002A 08075.15159796 -.00000019 +00000-0 +12928-7 0 07151
2 00016 034.2550 114.7671 2030531 091.0602 292.1633 10.48034668988929
along with a clamp band:
1 01576U 58002C 08076.47746087 -.00000533 00000-0 -52958-3 0 2479
2 01576 034.2201 158.0956 1478594 146.1608 224.2880 11.61518610 38390
http://www.heavens-
above.com/satinfo.aspx?lat=0&lng=0&alt=0&loc=Unspecified&TZ=CET&SatID=5
http://en.wikipedia.org/wiki/Vanguard_1
http://www.eurekalert.org/pub_releases/2008-03/nrl-vic031308.php
http://www.spaceref.com/news/viewnews.html?id=1241
If you were affiliated with Project Vanguard, please send a note to
vanguard2008(AT)yahoo.com
Dan Schultz N8FGV
(who is not quite old enough to remember that launch)
------------------------------
Message: 12
Date: Mon, 17 Mar 2008 08:38:29 +0100
From: John Hackett <archie.hackett(AT)hotmail.com>
Subject: [amsat-bb] Re: Teaspoons !!!!.
To: SV1BSX <sv1bsx(AT)yahoo.gr>
Cc: amsat-bb(AT)amsat.org, "Eu-amsat(AT)yahoogroups.com"
<eu-amsat(AT)yahoogroups.com>
Message-ID: <BLU138-W15CDF269D29E60EED009DF91050(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Rgr Mak,
That's precisely !!! what I was referring to re: lack of
intelligence.
It only takes one cretin to ruin it for everybody - but personally, I don't
give a rat's anymore - the log can become as corrupt as the ZZ1ZZZ wishes it
to be as far as I'm concerned.
I could delete the whole thing ... but that would put me on the same level as
ZZ1ZZZ ... I'm just leaving 'em to it.
I've wasted enough time and energy on it. After 40 years at this game I
learned a *LONG* time ago, like the VFO swishers, the only sensible way is to
ignore them completely.
Some people can't do that, I can - like I said, I don't give a rat's anymore.
I tried and failed - no big deal, some clown somewhere will be strutting his
stuff thinking ... "look what I did" ... but of course the majority of people
who do have a bit of common sense will be thinking - "what an idiot".
73 John. <la2qaa(AT)amsat.org>
From: sv1bsx(AT)yahoo.gr
To: la2qaa(AT)amsat.org
Subject: Re: Teaspoons !!!!.
Date: Sun, 16 Mar 2008 22:03:55 +0200
.....what did you say?
Not just "idiots", but there are also ...women and
not men. They have NOT balls...
Take a look at this picture (attachment), it's from the
AO-7 Log before 5-10 mins.
Well, this guy has not the balls to write his "callsign"
and signed as... ZZ1ZZZ !
But he commented me.
Of course I deleted that and I would like to see his face
after the "deleting".
Probably he don't know that, I can "broke" the page, at
any time - ho ho ho.
Anyway John, as I said to you before some of
them are... big idiots.
I think we spent our time for
nothing.
73, Mak
----- Original Message -----
From:
John Hackett
To: SV1BSX
Sent: Sunday, March 16, 2008 7:32
PM
Subject: Teaspoons !!!!.
Good one !!
Mak,
We're going to have to feed it to them with a teaspoon !! - like a
baby.
73 John. <la2qaa(AT)amsat.org>
From: sv1bsx(AT)yahoo.gr
To: la2qaa(AT)amsat.org
Subject: bulletin
on... LOG !
Date: Sun, 16 Mar 2008 18:27:06 +0200
John,
take a look:
http://www.planetemily..com/ao7/ao7log.php
"PEASE DO NOT write CQ here! ONLY CALLSIGNS"
Instructions... for the .. idiots !
Of course I will DELETE it after few hours. Just I hope to
see it that the usual ... idiots.
OFF LIST message !!!!!!!!!!!
73, Mak
Email: sv1bsx "AT" yahoo ...gr
URL :
http://sv1bsx.50webs.com
avast! Antivirus: Outbound
message clean.
Virus
Database (VPS): 080313-0, 03/13/2008
Tested on: 3/16/2008
18:27:11
avast! - copyright (c) 1988-2008 ALWIL
Software.
avast!
Antivirus: Inbound message clean.
Virus Database (VPS): 080313-0,
03/13/2008
Tested on: 3/16/2008 19:35:00
avast! -
copyright (c) 1988-2008 ALWIL Software.
------------------------------
Message: 13
Date: Mon, 17 Mar 2008 11:44:54 GMT
From: Clive Wallis <clivew(AT)zetnet.co.uk>
Subject: [amsat-bb] OSCAR-11 Report
To: amsat-bb(AT)amsat.org
Message-ID: <313030303137323747DE59B625(AT)zetnet.co.uk>
OSCAR-11 REPORT
17 March 2008
OSCAR-11 celebrated its 24th birthday on 01 March 2008. It was designed,
built and launched, within a time scale of six months, using commercially
available components. Congratulations to Professor Sir Martin Sweeting
G3YJO, his team at the University of Surrey and associated groups of radio
amateurs, for their magnificient achievement.
This report covers the period from 17 February to 17 March 2008. The
satellite was heard from 03 to 13 March. Previously the
transmissions which started on 11 February were terminated prematurely
after only four days. The watchdog timer cycle appears to have continued
for its full 21 days, thus restarting transmissions on 03 March.
Signals have been very variable in strength sometimes very strong,
sometimes undetectable, even at high elevations. Low signal strength was
particularly noticeable at AOS and LOS, and also towards the end of the
transmission period, which on this occasion, lasted the full ten days.
The next transmissions should start on 24 March. However, permanent
eclipses start a few days beforehand, which will probably cause the
transmission period to be terminated prematurely, and may even prevent it
being heard at all. After March it is unlikely that the satellite will
support any sustained period of operation, and will only transmit for a
short time, possibly less than a single orbit, every 21 days.
The real time clock now serves as a crude indicator of the state of the
satellite. Between 04 and 13 March showed an average loss of over two hours
per day. time every orbit. When last heard the clock was 83.0958 days slow.
I am indebted to Peter ZL3TC, Mark KU7Z, John KB2HSH, Antonio EA1CXG,
Edward BX1AD and Andrew VK5LAC for their reports. Many thanks.
The satellite is now in continuous sunlight, and this is expected to
continue until mid March, when eclipses will start again. Unfortunately
eclipses will then become a permanent feature of the orbit, which is likely
to prevent any periods of sustained operation after March.
The current status of the satellite, is that all the analogue telemetry
channels, 0 to 59 are zero, ie they have failed. The status channels 60 to
67 are still working. The real time clock is showing a large accumulated
error, although over short periods timekeeping is accurate to a few
seconds per month. The day of the month has a bit stuck at 'one' so the
day of the month may show an error of +40 days for some dates. The time
display has switched into 12 hour mode. Unfortunately, there is no AM/PM
indicator, since the time display format was designed for 24 hour mode.
The spacecraft computer and active attitude control system have switched
OFF, ie. the satellite' attitude is controlled only by the passive gravity
boom gradient, and the satellite is free to spin at any speed. When
telemetry was last received it showed that one of the solar arrays had
failed, and there was a large unexplained current drain on the main 14 volt
bus. After 23 years in orbit the battery has undergone around 100,000
partial charge/discharge cycles, and observations suggest that it cannot
power the satellite during eclipses, or sometimes during periods of poor
solar attitude.
The watchdog timer now operates on a 20 day cycle. The ON/OFF times have
tended to be very consistent. The average of many observations show this to
be 20.7 days, ie. 10.3 days ON followed by 10.4 days OFF. However, poor
solar attitude may result may result in a low 14 volt line supply, which
may cause the beacon to switch OFF prematurely, and reset the watchdog
timer cycle. When this occurs, the beacon is OFF for 20.7 days.
The Beacon frequencies are -
VHF 145.826 MHz. AFSK FM ASCII Telemetry
UHF 435.025 MHz. OFF
S-band 2401.5 MHz. OFF
Listeners to OSCAR-11 may be interested in visiting my website. If you need
to know what OSCAR-11 should sound like, there is a short audio clip for
you to hear. There is an example of the latest telemetry received from the
satellite. The website contains an archive of news & telemetry data. It
also contains details about using a soundcard or hardware demodulators for
data capture. There is software for capturing data, and decoding ASCII
telemetry. The URL is www.users.zetnet.co.uk/clivew/
If you place this bulletin on a terrestrial packet network, please
use the bulletin identifier $BID:U2RPT143.CWV, to prevent duplication.
73 Clive G3CWV xxxxx(AT)amsat.org (please replace xxxxx by g3cwv)
------------------------------
Message: 14
Date: Mon, 17 Mar 2008 14:23:58 -0300
From: "Bruce Robertson" <ve9qrp(AT)gmail.com>
Subject: [amsat-bb] Re: Predict 2.2.3 for Linux
To: "John Heaton" <john(AT)manchester.ac.uk>
Cc: AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID:
<49657a760803171023s596ecb45jab9e99a2ad446abc(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On Sun, Mar 16, 2008 at 7:37 AM, John Heaton <john(AT)manchester.ac.uk> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
>
> On 16 Mar 2008, at 05:50, Bruce Robertson wrote:
> > Your Predict is possibly dying for a lack of a TLE file. Point to one
> > with the -t command-line parameter. Ensure also that a qth file is
> > being created in ~/.predict and that you as user can read it with,
> > e.g. 'cat'. I believe predict is supposed to find a tle file in that
> > same directory, but I think I've had troubles with that option.
>
> Predict will run without a TLE file - you won't see any predictions
I just double-checked this, and I still find that if there is no tle
file and none pointed to with a -t switch, it will die as Kent
described below. Namely, it will send you to the new user screen and
then exit when the info is entered. (Unfortunately, it exits with the
terminal in a funny state.) In my experience, it does this on a fresh
install with apt-get on Ubuntu, or with a build install (using root).
This is a frustrating loop for the user, since he or she can
reasonably expect that the data is entered after the first attempt,
and furthermore the qth file can be found in the ~/.predict
I've taken a screenshot and posted it at
http://heml.mta.ca/Amsat/predict-fail.png
If, however, you use -t to point it to a tle file it can't parse, it
will do as you, John, describe above. More specifically, you can
select the [P] option from the main menu, but this results in a blank
list of satellites from which to choose.
For instance, the following command will produce this effect:
brucerob(AT)heml:~$ touch foo
brucerob(AT)heml:~$ predict -t foo
I get the exact same effect if I use the documented nasa tle files. For
example:
brucerob(AT)heml:~$ wget http://www.amsat.org/amsat/ftp/keps/current/nasa.all
brucerob(AT)heml:~$ predict -t nasa.all
Fails the same as my 'foo' file above. However if I edit out the
comments in the file describing the file format so that the first line
begins with 'AO-07', predict operates normally.
> > Finally, make sure that your tle file does not have any comments at
> > its top before the actual elements. For instance, the commonly used
> > nasa.tle files have a set of comments describing the tle format.
> > Predict dies on these.
>
> Predict ignores data in the TLE file before the TLE data, so if you
> get your TLE as a meil message you don't need to remove the headers
Perhaps predict is written to ignore the headers of a mail message,
but not the comments that appear in the nasa file?
I hope it is understood that I'm documenting this because I like
predict and consider it a wonderful arrow in AMSAT's quiver. Indeed,
since it might be a potential AMSAT'er's first encounter with pass
prediction -- given that it is part of the debian world -- I think we
should ensure that it is very easy to use. Furthermore it
cross-compiles like a dream: as I've said elsewhere it works
identically on a Nokia N800; and another member of this list got it to
run on the gumstix platform.
73, Bruce
VE9QRP
>
> >
> > On Sun, Mar 16, 2008 at 12:59 AM, Kent R. Frazier <k5knt(AT)amsat.org>
> > wrote:
> >> I just installed Ubuntu Linux 7.10 and Predict 2.2.3 on my
> >> notebook. When I
> >> start Predict I get the "new user" screen where I enter the required
> >> information. After pressing the "enter" key on the last entry I
> >> get a
> >> command prompt. I can not seem to get to the main menu.
> >>
> >> Is anyone using this software that could offer some suggestions?
> >> Or maybe
> >> another alternative to run under Linux?
>
------------------------------
Message: 15
Date: Mon, 17 Mar 2008 17:28:58 +0000
From: w7lrd(AT)comcast.net
Subject: [amsat-bb] sound card
To: AMSAT-BB(AT)amsat.org (AMSAT-BB)
Message-ID:
<031720081728.24022.47DEAA5A0005707400005DD622165662760B9D04C999(AT)comc
ast.net>
Content-Type: text/plain
Greetings
I am considering getting involved with some digital operations (fright). What
is a recommended sound card to use for this endeavor (more fright).
--
73 Bob W7LRD
AMSAT member 28498
Seattle
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 139
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