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CX2SA > SATDIG 24.07.08 15:03l 827 Lines 25460 Bytes #999 (0) @ WW
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Today's Topics:
1. Field Day 2008 Totals (Bruce)
2. Cal Poly Satellite, CP4 Beacon Help (Jason Anderson)
3. Re: Yubileiny (andy thomas)
4. mobile satellite operation... (Mark VandeWettering)
5. Re: go-32 techsat 435.225? (Fred VE3FAL)
6. Re: go-32 techsat 435.225? (Alan P. Biddle)
7. Re: Field Day 2008 Totals (Dave Guimont)
8. Re: Cal Poly Satellite, CP4 Beacon Help (Tim Tuck)
9. Re: go-32 techsat 435.225? (Fred VE3FAL)
10. Re: Cal Poly Satellite, CP4 Beacon Help (Alan P. Biddle)
11. PCSat and ISS (Fred VE3FAL)
12. Re: PCSat and ISS (Alan P. Biddle)
13. VHF UHF Rig (Mike Miller)
14. Re: Field Day 2008 Totals (Dave Guimont)
15. Ao-27 Telemetry (Robert Smith)
16. Re: Cal Poly Satellite, CP4 Beacon Help (Jason Anderson)
----------------------------------------------------------------------
Message: 1
Date: Wed, 23 Jul 2008 14:03:42 -0500
From: Bruce <kk5do(AT)arrl.net>
Subject: [amsat-bb] Field Day 2008 Totals
To: "amsat-bb(AT)AMSAT.Org" <amsat-bb(AT)amsat.org>
Message-ID: <4887808E.5040509(AT)arrl.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Field Day 2008 is over and I have just completed compiling the scores
and writing the article.
The results will be published in the next AMSAT Journal (not the
May/June that is printing now) with some really nice photos that were
sent in. At the same time, I will post the results through ANS.
This year, we had 8 satellites used. There was even one QSO on AO-16. A
total of 120 QSO's were reported and we had 17 stations submit scores.
The most contacts were done on VO-52 this year. Behind that was AO-7.
Here are some stats from previous years.
2005 2006 2007 2008
Satellites 8 7 5 8
QSO's 120 258 207 220
Stations 11 21 13 17
Watch your mailbox for your copy of the AMSAT 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
Podcast at http://www.amsatnet.com/podcast.xml or iTunes
Latest satellite news on the ARRL Audio News
http://www.arrl.org
------------------------------
Message: 2
Date: Wed, 23 Jul 2008 11:30:12 -0700 (PDT)
From: Jason Anderson <jander06(AT)calpoly.edu>
Subject: [amsat-bb] Cal Poly Satellite, CP4 Beacon Help
To: amsat-bb(AT)amsat.org
Message-ID:
<7816914.1216837812606.JavaMail.oracle(AT)prcoap02.its.calpoly.edu>
Content-Type: text/plain;charset=US-ASCII
Fellow Satellite Trackers,
We at Cal Poly have seen some unpredictable behavior on our satellite, CP4.
Since we only have contact with the satellite once every 12 hours, it would be
extremely helpful if we could get some global support with collecting beacons
to get a more complete picture of the the satellite's health. For those who
are interested, please send any collected data (audio or decoded binary) to my
email address,
jander06(AT)calpoly.edu
Below is the information needed to track our satellite. Thanks everyone for
your help!
- Jason Anderson, KI6GIV
California Polytechnic State University
Satellite Link Information
------------------------------
Frequency: 437.325Mz
Modulation: FSK (but uses LSB cheat to make AFSK)
Radio Mode: LSB (neccesary for LSB cheat)
Baud Rate: 1200
Beacon rate: 1 beacon/minute (maybe change to 5 minutes if satellite changes
mode)
TLE as of 17:05 UTC from space-track.org
-------------------------------------------------
CP4
1 31132U 07012Q 08204.91731983 +.00000022 +00000-0 +15387-4 0 03867
2 31132 098.0398 269.1643 0084942 216.7771 142.7585 14.55130470067148
Beacon Packet Format
--------------------------
Field # Field Description
1 COMM Packet Type
2 CDH Snapshot sequence number (LSB)
3 CDH Snapshot sequence number (MSB)
4 RTC timestamp (hour)
5 RTC timestamp (min)
6 RTC timestamp(sec)
7 -Y Axis solar panel voltage
8 -Y Axis solar panel current
9 -Y Axis Peak Power Tracking
10 -Y Axis magnetorquer current
11 -Y Axis magnetometer A axis
12 -Y Axis magnetometer B axis
13 -Y Axis internal temperature
14 -Y Axis external temperature
15 -Y Axis face regulated power (3V Side Panel)
16 -X Axis solar panel voltage
17 -X Axis solar panel current
18 -X Axis Peak Power Tracking
19 -X Axis magnetorquer current
20 -X Axis magnetometer A axis
21 -X Axis magnetometer B axis
22 -X Axis internal temperature
23 -X Axis external temperature
24 -X Axis face regulated power (3V Side Panel)
25 +Z Axis solar panel voltage
26 +Z Axis solar panel current
27 +Z Axis Peak Power Tracking
28 +Z Axis magnetorquer current
29 +Z Axis magnetometer A axis
30 +Z Axis magnetometer B axis
31 +Z Axis internal temperature
32 +Z Axis external temperature
33 +Z Axis face regulated power (3V Side Panel)
34 +X Axis solar panel voltage
35 +X Axis solar panel current
36 +X Axis Peak Power Tracking
37 +X Axis magnetorquer current
38 +X Axis magnetometer A axis
39 +X Axis magnetometer B axis
40 +X Axis internal temperature
41 +X Axis external temperature
42 +X Axis face regulated power (3V Side Panel)
43 -Z Axis solar panel voltage
44 -Z Axis solar panel current
45 -Z Axis Peak Power Tracking
46 -Z Axis magnetorquer current
47 -Z Axis magnetometer A axis
48 -Z Axis magnetometer B axis
49 -Z Axis internal temperature
50 -Z Axis external temperature
51 -Z Axis face regulated power (3V Side Panel)
52 CDH RF Amp A current
53 CDH RF Amp B current
54 CDH CDH Regulated Power (3V_CDH)
55 CDH RF Amp Temperature
56 CDH comm A regulated power (3V_COMMA)
57 CDH comm B regulated power (3V_COMMB)
58 CDH VSUM
59 Power cdh current
60 Power SPA current
61 Power SP Bcurrent
62 Power comm A current
63 Power comm B current
64 Power payload current
65 Power cdh power temperature
66 Power comm A power temperature
67 Power comm B power temperature
68 Power 3V Side Panel A
69 Power 3V Side Panel B
70 Battery A protection byte
71 Battery A status byte
72 Battery A voltage byte
73 Battery A temperature byte
74 Battery A current(LSB)
75 Battery A current(MSB)
76 Battery A accumulated current (LSB)
77 Battery A accumulated current (MSB)
78 Battery B protection byte
79 Battery B status byte
80 Battery B voltage byte
81 Battery B temperature byte
82 Battery B current(LSB)
83 Battery B current(MSB)
84 Battery B accumulated current (LSB)
85 Battery B accumulated current (MSB)
86 CDH statusbyte
87 CDH currentstate
88 CDH cdhresetcount(MSB)
89 CDH cdhresetcount(LSB)
90 Comm status byte
91 Comm cc1000 calibration register
92 Comm cc1000 power register
93 Comm cc1000 max rssi
94 Payload statusbyte
95 Payload rtc temperature
96 Payload face temperature
97 Payload unregulated coumputer temperature
98 Payload unregulated coumputer voltage (MSB)
99 Payload unregulated coumputer voltage (LSB)
------------------------------
Message: 3
Date: Wed, 23 Jul 2008 20:43:03 +0000 (GMT)
From: andy thomas <andythomasmail(AT)yahoo.co.uk>
Subject: [amsat-bb] Re: Yubileiny
To: amsat <amsat-bb(AT)amsat.org>
Message-ID: <576177.55778.qm(AT)web25602.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
RS-30 transmits a CW beacon on 435.315 or .215 until she comes within the
footprint of either the control station at Korolev north of Moscow or a
station in Siberia responsible for the university experiments she carries.
When within range of these stations she is switched to an FM AFSK stystem
called DOKA-B. The grohjd sartation has DOKA-N. This is a direct FD modulation
interface with the control board for the satellite. Looking at my recordings
it's an 8 bit frequency division system idling at 40 bps with a synch
frequency of 2400 Hz, which trips any wefax programme (but isn't wefax). I
suspect it's just a PC WLAN system, frankly.
I anticipate getting the decode sheet for the CW tlm "real soon now" and will
post on the BB as soon as I get it. It is very similar to RS 22. (q.v.).
I will be in Moscow over August 3/4 and will try and get further info about
when she will switch mode to SSTV etc.
73 de andy G0SFJ
__________________________________________________________
Not happy with your email address?.
Get the one you really want - millions of new email addresses available now at
Yahoo! http://uk.docs.yahoo.com/ymail/new.html
------------------------------
Message: 4
Date: Wed, 23 Jul 2008 14:18:00 -0700
From: Mark VandeWettering <kf6kyi(AT)gmail.com>
Subject: [amsat-bb] mobile satellite operation...
To: Amsat-Bb <amsat-bb(AT)amsat.org>
Message-ID: <4887A008.50903(AT)gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
During one of the many recent discussions, somebody mentioned that
Doppler tracking wasn't really that difficult, all one needed to do was
download InstantTrack or whatever on some old, ancient PC, and that you
would need to have a PC around to track the satellite anyway.
But here's the thing: I _don't_ need a pc to track the sats. I operate
handheld with my little TH-D7A in one hand, and my trusty Arrow in the
other. Before each pass, I run a little Python satellite prediction
program that I wrote to dump information about the pass, which looks like:
AO-51 will be visible from grid CM87ux starting in 04:44:31 at 01:44:03
01:44:03 +0.0? 132.0? ? 18.8?N 102.4?W AOS
01:45:00 +3.3? 127.9? ? 22.3?N 103.2?W
01:46:00 +7.2? 122.4? ? 25.9?N 104.0?W
01:47:00 +11.4? 114.8? ? 29.5?N 104.9?W
01:48:00 +15.8? 104.4? ? 33.1?N 105.9?W
01:49:00 +19.8? 90.3? ? 36.7?N 106.9?W
01:50:00 +22.1? 72.7? ? 40.3?N 108.0?W
01:50:18 +22.3? 67.1? ? 41.4?N 108.3?W MAX
01:51:00 +21.5? 54.1? ? 43.9?N 109.2?W
01:52:00 +18.3? 37.9? ? 47.5?N 110.5?W
01:53:00 +14.1? 25.5? ? 51.1?N 112.0?W
01:54:00 +9.7? 16.5? ? 54.6?N 113.6?W
01:55:00 +5.7? 10.0? ? 58.2?N 115.6?W
01:56:00 +2.0? 5.2? ? 61.7?N 117.9?W
01:56:35 +0.1? 2.9? ? 63.7?N 119.4?W LOS
At home, I know basically where the compass points line up, and for away
from home contacts, I carry a little compass. With a tiny bit of
practice and a reasonably accurate digital watch, you get pretty good at
just tracking the antenna naturally over the course of a pass. With the
FM birds, I just listen for the signal getting raspy, and tune down in
frquency as needed.
For me, I don't want to carry a PC. Or a laptop. I have my little FT-817
that's actually pretty good to use on a strap around my neck, but if you
have to sling a laptop and operate it all simultaneously, you're
probably screwed.
So, here's the idea: the Python library I wrote is actually pretty
simple. It's a direct port of G3RUH's Plan 13 algorithm, and runs fast
enough to be entirely useful. It also has the capability of doing
Doppler translations at a reasonable rate, even on a fairly modest
microcontroller. (In fact, the way I started on this project was noting
that G6LVB's tracker implements the same algorithm to provide automatic
antenna tracking). So, why not build a little battery powered
microcontroller unit that provides Doppler tracking for the FT-817ND?
You could load the orbital elements onto (say) and SD card on your PC in
the house, and then jam the little thing into a smallish battery powered
microcontroller, and it would provide automatic Doppler tuning. Then,
truly mobile operation would be possible on the linear birds, without
having to bring laptops or juggle with the reasonably fast Doppler of VO-52.
Yes, the setup isn't quite ideal: you don't get full duplex, but in most
other respects, it would be totally adequate.
You could even use an off the shelf controller like:
http://gumstix.com/store/catalog/product_info.php?cPath=26&products_id=79&osCs
id=cb40b0a364041ad11ee9af494c9a518f
which has a USB->host connection, two serial ports, and costs $129. This
establishes a sort of greatest upper bound on how much such a project
need to cost.
What do people think? Will the lack of full duplex kill me in this
endeavor? What am I overlooking?
Mark "trying to turn ham radio into just button pushing" VandeWettering
KF6KYI
------------------------------
Message: 5
Date: Wed, 23 Jul 2008 19:07:42 -0400
From: "Fred VE3FAL" <flesnick(AT)tbaytel.net>
Subject: [amsat-bb] Re: go-32 techsat 435.225?
To: <APBIDDLE(AT)MAILAPS.ORG>, "'amsat'" <amsat-bb(AT)amsat.org>
Message-ID: <00a301c8ed18$e95e0470$bd00a8c0(AT)radioroom>
Content-Type: text/plain; charset="US-ASCII"
What is the name I would look for to pull it up on Nova to track it, I don't
see GO-32 in the list.
Fred
VE3FAL
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Alan P. Biddle
Sent: Wednesday, July 23, 2008 11:42 AM
To: 'amsat'
Subject: [amsat-bb] Re: go-32 techsat 435.225?
Yes, that is the correct downlink. It has a strong downlink signal.
What rig, TNC, and software are you using? With that info, perhaps someone
will have a suggestion.
Alan
WA4SCA
_______________________________________________
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: Wed, 23 Jul 2008 18:35:51 -0500
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Re: go-32 techsat 435.225?
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>
Message-ID: <BE6C0BE9C1034458B5D94D7770FA3282(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
Fred,
It is distributed in the keps as GO-32. I don't use Nova so I can't give
you the specifics, but somewhere there is a function where you select which
satellites you want to use from the huge list. One of them will be GO-32.
Alan
WA4SCA
------------------------------
Message: 7
Date: Wed, 23 Jul 2008 17:19:54 -0700
From: Dave Guimont <dguimon1(AT)san.rr.com>
Subject: [amsat-bb] Re: Field Day 2008 Totals
To: kk5do(AT)arrl.net
Cc: amsat-bb(AT)amsat.org
Message-ID:
<20080724001958.ECQW9085.cdptpa-omta06.mail.rr.com(AT)Dave.san.rr.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>This year, we had 8 satellites used. There was even one QSO on AO-16. A
>total of 120 QSO's were reported and we had 17 stations submit scores.
>The most contacts were done on VO-52 this year. Behind that was AO-7.
>
>Here are some stats from previous years.
>
> 2005 2006 2007 2008
>Satellites 8 7 5 8
>QSO's 120 258 207 220
>Stations 11 21 13 17
Bruce, how about listing some of the results on here from the first
few FD's to make a comparison...
73, Dave, WB6LLO
dguimon1(AT)san.rr.com
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 8
Date: Thu, 24 Jul 2008 10:36:13 +1000
From: "Tim Tuck" <tim.tuck(AT)penrith.net>
Subject: [amsat-bb] Re: Cal Poly Satellite, CP4 Beacon Help
To: Jason Anderson <jander06(AT)calpoly.edu>, AMSAT BB
<amsat-bb(AT)amsat.org>
Message-ID: <4887CE7D.7010008(AT)penrith.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Jason Anderson wrote:
[snip]
> Satellite Link Information
> ------------------------------
> Frequency: 437.325Mz
> Modulation: FSK (but uses LSB cheat to make AFSK)
> Radio Mode: LSB (neccesary for LSB cheat)
> Baud Rate: 1200
> Beacon rate: 1 beacon/minute (maybe change to 5 minutes if satellite changes
mode)
>
>
Hi James,
Happy to help with this but I'm a little confused as to what I should
set MixW to decode your data since I have 5 possible forms of 1200 baud
to set it to which are....
Standard 1200/2200 Hz
Zero Crossing 600/1200 hz
Zero Crossing 1200/2400 Hz
satellite PSK
FX469: 1200\1800 Hz
I'm new to telemetry gathering, and I 'm currently collecting packets of
DelpiC3 with great success but they made it easy with their own program.
regards
Tim
--
VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT
------------------------------
Message: 9
Date: Wed, 23 Jul 2008 19:56:49 -0400
From: "Fred VE3FAL" <flesnick(AT)tbaytel.net>
Subject: [amsat-bb] Re: go-32 techsat 435.225?
To: "'Fred VE3FAL'" <flesnick(AT)tbaytel.net>, <APBIDDLE(AT)MAILAPS.ORG>,
"'amsat'" <amsat-bb(AT)AMSAT.Org>
Message-ID: <00c301c8ed1f$c5e0eb00$bd00a8c0(AT)radioroom>
Content-Type: text/plain; charset="US-ASCII"
Never mind, Oscar 32...doh
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Fred VE3FAL
Sent: Wednesday, July 23, 2008 7:08 PM
To: APBIDDLE(AT)MAILAPS.ORG; 'amsat'
Subject: [amsat-bb] Re: go-32 techsat 435.225?
What is the name I would look for to pull it up on Nova to track it, I don't
see GO-32 in the list.
Fred
VE3FAL
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Alan P. Biddle
Sent: Wednesday, July 23, 2008 11:42 AM
To: 'amsat'
Subject: [amsat-bb] Re: go-32 techsat 435.225?
Yes, that is the correct downlink. It has a strong downlink signal.
What rig, TNC, and software are you using? With that info, perhaps someone
will have a suggestion.
Alan
WA4SCA
_______________________________________________
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
_______________________________________________
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: 10
Date: Wed, 23 Jul 2008 20:30:03 -0500
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Re: Cal Poly Satellite, CP4 Beacon Help
To: "'AMSAT BB'" <amsat-bb(AT)amsat.org>
Message-ID: <4CF2122FF25C456082C2A6C3B4C4AE23(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
Tim,
You want the standard one. I found the post a bit cryptic as well, and
found an excellent step-by-step here:
http://polysat.calpoly.edu/earthstation/software/mixw/index.php
Alan
WA4SCA
------------------------------
Message: 11
Date: Wed, 23 Jul 2008 21:40:39 -0400
From: "Fred VE3FAL" <flesnick(AT)tbaytel.net>
Subject: [amsat-bb] PCSat and ISS
To: "'amsat'" <amsat-bb(AT)amsat.org>
Message-ID: <010401c8ed2e$46cabf30$bd00a8c0(AT)radioroom>
Content-Type: text/plain; charset="US-ASCII"
Is anyone hearing anything from either of these birds? I have been
monitoring 145.825 for over a week now and not a peep from them at all. I
know the charging cycle (sun) is not favorable for PCSat but is anyone
copying them? I know UISS is copying ok as I turn my mobile APRS rig on and
it gets picked up by the program.
Fred
VE3FAL
------------------------------
Message: 12
Date: Wed, 23 Jul 2008 21:20:25 -0500
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Re: PCSat and ISS
To: "'amsat'" <amsat-bb(AT)amsat.org>
Message-ID: <3DF85A585D5E428195E8DC74C3C0A46A(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
Fred,
The ISS has not been active on packet lately. Take a look here for what
seems to be the most current data on what is happening, as opposed to what
is supposed to be happening.
http://www.issfanclub.com/
Alan
WA4SCA
------------------------------
Message: 13
Date: Wed, 23 Jul 2008 21:31:16 -0500
From: "Mike Miller" <mmiller(AT)nctc.com>
Subject: [amsat-bb] VHF UHF Rig
To: <amsat-bb(AT)amsat.org>
Message-ID: <000601c8ed35$5c1ad0d0$6501a8c0(AT)Upstairs>
Content-Type: text/plain; charset="iso-8859-1"
Thinking about selling 847.....Which rig is best for satellite..work.?
ICOM 910 H
Kenwood 2000
opinions ....your 2 cents
Mike Miller KA5SMA
------------------------------
Message: 14
Date: Wed, 23 Jul 2008 21:12:38 -0700
From: Dave Guimont <dguimon1(AT)san.rr.com>
Subject: [amsat-bb] Re: Field Day 2008 Totals
To: Bruce <kk5do(AT)arrl.net>
Cc: amsat-bb(AT)amsat.org
Message-ID:
<20080724041242.CJYL4153.cdptpa-omta03.mail.rr.com(AT)Dave.san.rr.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>like how far back? I have them to 2002. how have you been? I for one
>sure miss rag chewing on a heo.
Yes, me to, Bruce, got my fingers crossed for P3E...
No one has the original figures, when NSARC in San Diego won the very
first contest on FD??
Bruce, how about listing some of the results on here from the first
>>few FD's to make a comparison...
>
>
> 73, Dave, WB6LLO
> dguimon1(AT)san.rr.com
>
> Disagree: I learn....
>
> Pulling for P3E...
------------------------------
Message: 15
Date: Wed, 23 Jul 2008 17:03:49 -1000
From: "Robert Smith" <dukenuke(AT)pixi.com>
Subject: [amsat-bb] Ao-27 Telemetry
To: "Amsat-Bb(AT)Amsat. Org" <amsat-bb(AT)AMSAT.Org>
Message-ID: <001701c8ed39$e6db4e30$2f01a8c0(AT)HPOWER>
Content-Type: text/plain; charset="iso-8859-1"
Aloha
Months ago I downloaded the AO-27 telemetry
decoder for 1200 baud packet. I was unable to
configure the decoder because I am using a
sound card and packet engine for 1200 baud
telemetry. Did, I miss something? Can the
decoder be used with the AGWPE software?
Mahalo. robert NH7WN in Honolulu
------------------------------
Message: 16
Date: Wed, 23 Jul 2008 21:33:24 -0700 (PDT)
From: Jason Anderson <jander06(AT)calpoly.edu>
Subject: [amsat-bb] Re: Cal Poly Satellite, CP4 Beacon Help
To: tim.tuck(AT)penrith.net, AMSAT BB <amsat-bb(AT)amsat.org>
Message-ID:
<30641091.1216874004255.JavaMail.oracle(AT)prcoap03.its.calpoly.edu>
Content-Type: text/plain;charset=US-ASCII
Tim,
Thanks for the response. We too use MixW and we are using the
Standard 1200/2200 Hz
setting. The only other needed setting I believe is that MixW's mode must be
set to "packet". This is selectable in my version by clicking on the "Mode"
dropdown menu right next to "File" and "Edit".
A sample of CP4's beacon can be found at
http://polysat.calpoly.edu/Dnepr2/CalPoly/CP2_04_21_07_1300.wav
Using this, it is possible to find out if MixW has been configured correctly
by changing MixW's audio source to listen to "Wave Out Mix" (the computer's
audio) and playing the wav file in a media player as you would play it through
your speakers. This setting can be changed by going to the "Configure->Input
Volume..."(Opens Window's Volume Control) and selecting "Wave Out Mix" instead
of "Line In". Just remember to reselect "Line In" before the real CP4 pass.
If you do not see "Wave Out Mix" in the "Configure->Input Volume..." menu,
then you must go to the "Options->Properties" menu inside of the "Input
Volume..." window and select "Adjust volume for Recording" instead of "Adjust
volume for Playback". Then make sure that the checkbox for "Wave Out Mix" is
selected and click "OK".
Let me know if you run into any other issues. Thanks for the support,
- Jason Anderson, KI6GIV
-----Original Message-----
>From Tim Tuck <tim.tuck(AT)penrith.net>
Sent Thu 7/24/2008 12:36 AM
To Jason Anderson <jander06(AT)calpoly.edu>; AMSAT BB <amsat-bb(AT)amsat.org>
Subject Re: [amsat-bb] Cal Poly Satellite, CP4 Beacon Help
Jason Anderson wrote:
[snip]
> Satellite Link Information
> ------------------------------
> Frequency: 437.325Mz
> Modulation: FSK (but uses LSB cheat to make AFSK)
> Radio Mode: LSB (neccesary for LSB cheat)
> Baud Rate: 1200
> Beacon rate: 1 beacon/minute (maybe change to 5 minutes if satellite changes
mode)
>
>
Hi James,
Happy to help with this but I'm a little confused as to what I should
set MixW to decode your data since I have 5 possible forms of 1200 baud
to set it to which are....
Standard 1200/2200 Hz
Zero Crossing 600/1200 hz
Zero Crossing 1200/2400 Hz
satellite PSK
FX469: 1200\1800 Hz
I'm new to telemetry gathering, and I 'm currently collecting packets of
DelpiC3 with great success but they made it easy with their own program.
regards
Tim
--
VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 370
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