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CX2SA > SATDIG 30.07.08 03:35l 983 Lines 29473 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. F.S. Items (Anna Osborn)
2. data sat go-32 dowlink ssb/pkt? (Mr Jeffrey L Ross)
3. Re: Delfi C3 transponder frequencies ? (Alan Cresswell)
4. FO-29 on July 28 (Luciano G Nachif)
5. FO29 WOW! (Dave Guimont)
6. F.S.Items (Anna Osborn)
7. Re: WISPDDE and IC-910H (Tim Tuck)
8. Re: FO-29 telemetry (SV1BSX)
9. ao-51 data/power (Mr Jeffrey L Ross)
10. Re: FO-29 on July 28 (Raul Romero CA3SOC)
11. Re: ao-51 data/power (Gould Smith)
12. operational data sats (Mr Jeffrey L Ross)
13. Re: FO29 WOW! (Greg D.)
14. Delfi N3xT (G0MRF(AT)aol.com)
15. Delfi-C3 Status update 29 July 12:30 UTC (Wouter Jan Ubbels)
----------------------------------------------------------------------
Message: 1
Date: Mon, 28 Jul 2008 13:22:17 -0700 (PDT)
From: Anna Osborn <ws4z1(AT)yahoo.com>
Subject: [amsat-bb] F.S. Items
To: amsat-bb(AT)amsat.org
Message-ID: <110652.70447.qm(AT)web35103.mail.mud.yahoo.com>
Content-Type: text/plain; charset=us-ascii
All the sale items are sold except the power supply. Thanks to all.
Anna Osborn ws4z
------------------------------
Message: 2
Date: Mon, 28 Jul 2008 18:28:26 -0400
From: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>
Subject: [amsat-bb] data sat go-32 dowlink ssb/pkt?
To: "amsat" <amsat-bb(AT)amsat.org>
Message-ID: <000501c8f101$4233c710$6401a8c0(AT)hamshackcomputer>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
hi folks, I think I may know why I am not getting the downlink, could it be
that I have my rig on pkt? My rig has setting for lsb, usb, cw, cwr,data,
pkt.am,fm. Should I maybe place it on other then pkt? which one? fm maybe?
Please advise, tks
kc8gkf
,
------------------------------
Message: 3
Date: Mon, 28 Jul 2008 22:38:10 -0000
From: "Alan Cresswell" <alancresswell(AT)xtra.co.nz>
Subject: [amsat-bb] Re: Delfi C3 transponder frequencies ?
To: "'AMSAT-BB'" <amsat-bb(AT)amsat.org>
Message-ID: <001201c8f102$9e4352e0$0401010a(AT)Dell1>
Content-Type: text/plain; charset="US-ASCII"
Hi David and Ib,
Delfi transponder was operating over ZL on the 2132 UT pass a short while
ago.
Started with a 6.3kHz offset (Satellite input on 435.5495MHz, Output on
145.9068MHz). This drifted down to about a 6kHz offset at the end of the
pass.
Good beacon signals until Delfi was about 61 deg S when it sounded as
though it was FMing and the note became rough for about 2 minutes.
Little or no signal back from the transponder.
It recovered before LOS a few minutes later.
Note that Delfi has been in full sun for more than half its orbit before it
hits ZL and progressively loses the sun before going into eclipse South of
ZL so the above may not represent what happens as Delfi comes out of eclipse
in the Northern hemisphere.
All very interesting. Still no one to talk to in this part of the world.
"Heard in VK" is the best so far. Next pass is 4 Deg low to West (over VK)
so perhaps this time if the transponder is still on.
Alan
ZL2BX
_____
From: G0MRF(AT)aol.com [mailto:G0MRF(AT)aol.com]
Sent: Monday, 28 July 2008 13:37
To: alancresswell(AT)xtra.co.nz; oz1my(AT)privat.dk
Subject: Re: [amsat-bb] Re: Delfi C3 transponder frequencies ?
Hi Alan / Ib
I never thought I would say this.....but part of the answer is on you tube.
http://www.youtube.com/watch?v=vYcl48K5qBE
If you watch the video carefully, then you can see with a little stopping
and starting the two frequencies on their radio when they were testing the
transponder. It's about 1min 20sec into the video.
145.9005 = 435.5512
So that would seem consistent with Alan's observation and equating to a
nominal clean room temperature. However, certainly seems to be that an
offset has been there from the moment the transponder was finished.
Thanks
David
In a message dated 27/07/2008 20:27:18 GMT Standard Time,
alancresswell(AT)xtra.co.nz writes:
Hi all,
On the one good pass over ZL so far I had to use a +6kHz offset on my uplink
to receive on the nominal downlink frequency.
i.e. satellite input frequency of 535.556 (nominal 435.550) to hit the
145.900 satellite output frequency.
Alan
ZL2BX
------------------------------
Message: 4
Date: Mon, 28 Jul 2008 18:51:28 -0400
From: "Luciano G Nachif" <nachif(AT)terra.com.br>
Subject: [amsat-bb] FO-29 on July 28
To: "amsat-bb" <amsat-bb(AT)amsat.org>
Message-ID: <K4QNHS$F0E31C31913A37FF43F48FA0CAB21AF2(AT)multidominios>
Content-Type: text/plain; charset=iso-8859-1
Did anybody hear FO-29 on Monday night 21 UTC?
I tried it over Brazil on orbit # 2,298 but not a word on either its beacon or
transponder...
73,
PT9KK
------------------------------
Message: 5
Date: Mon, 28 Jul 2008 16:57:22 -0700
From: Dave Guimont <dguimon1(AT)san.rr.com>
Subject: [amsat-bb] FO29 WOW!
To: amsat-bb(AT)amsat.org
Message-ID:
<20080728235732.EMSS14026.cdptpa-omta01.mail.rr.com(AT)Dave.san.rr.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
FO29 is back!! TNX JARL.....
Amateur satellite radio communication is back..
Besides VO52..
Absolutely wonderful to have had a very nice contact with W6ASL, Jim
in Concord, CA...
A nice chat with NO ONE, complaining about us hogging the frequency...
I used about 3 watts up the pipe with ~10 db antenna..
BANDWIDTH!!!!!!
73, Dave, WB6LLO
dguimon1(AT)san.rr.com
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 6
Date: Mon, 28 Jul 2008 17:15:14 -0700 (PDT)
From: Anna Osborn <ws4z1(AT)yahoo.com>
Subject: [amsat-bb] F.S.Items
To: amsat-bb(AT)amsat.org
Message-ID: <405555.17988.qm(AT)web35105.mail.mud.yahoo.com>
Content-Type: text/plain; charset=us-ascii
All the items I listed but the power supply have been sold, thanks everyone ,
73, Anna
------------------------------
Message: 7
Date: Tue, 29 Jul 2008 11:44:53 +1000
From: "Tim Tuck" <tim.tuck(AT)penrith.net>
Subject: [amsat-bb] Re: WISPDDE and IC-910H
To: "Sion Chow Q. C. (9W2QC)" <9w2qc(AT)9w2qc.net>
Cc: amsat-bb(AT)amsat.org
Message-ID: <488E7615.6080705(AT)penrith.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Sion Chow Q. C. (9W2QC) wrote:
[snip]
I have configured WISPDDE client to IC-910H as
> radio 1. However, WISPDDE gives errors (when the pass starts, and
> frequency is passed from WISP to WISPDDE client via DDE) like "Unable
> to cancel duplex command" and some other errors whenever
> "Bidirectional interface" is enabled. If "Bidirectional interface" is
> unchecked, everything works fine. I cant this enabled (causes WISPDDE
> client to hang up), so for now I have to let it be disabled.
>
> I use the IC-910H in satellite mode with this setup, as this is
> required to get the downlink on the top (RX) and uplink on the bottom
> (TX). Would be glad if anyone could help me on this matter. Although
> this is not a serious trouble, I cant get WISPDDE to recognise small
> changes/compensation made using the VFO knob on the IC-910H especially
> when copying CW satellites.
The 910 needs to put in "satellite" mode before you enable WispDDE.
WispDDE *WILL* send a message about "unable to cancel split mode" before it
works properly.
WispDDE will *NOT* work properly if the 910 is *NOT* in satellite mode.
WispDDE will switch bands and modes properly only if the 910 is in satellite
mode.
The inability of WispDDE to recognise VFO changes is because "Bidirectional
Interface" is turned off. You may also have an old version of WispDDE which
did
not support "transparent tuning" - I'll send you the most recent build that
does
support it, in a separate email.
I use Orbitron and WispDDE for my 910 and it works well for me on all the
satellites I use.
Feel free to ask me any questions about the 910 with WispDDE
regards
Tim
--
VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT
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------------------------------
Message: 8
Date: Tue, 29 Jul 2008 04:56:16 +0300
From: "SV1BSX" <sv1bsx(AT)yahoo.gr>
Subject: [amsat-bb] Re: FO-29 telemetry
To: <amsat-bb(AT)amsat.org>
Cc: Keith N4ZQ <n4zq(AT)netzero.net>
Message-ID: <004601c8f11e$4d4f88b0$0b09a8c0(AT)zeus>
Content-Type: text/plain; format=flowed; charset="windows-1253";
reply-type=original
Hi Keith, N4ZQ
I agree with you, however how can we prevent somebody to use the Satellite
into Eclipse?
Fortunately, the Satellite comes into Eclipse over populated areas -like
Europe- before and after the midnight, so the traffic is minimal. That's
good !
On the other hand, there are several areas where the Satellite has a
terrible "jamming" on the Uplink, in the middle of the night.
I have observed that, over M.East and W.Asia sometimes the Satellite is
fully noisy, FMing too.
Probably because the Satellite subzone between 145.8-146 MHZ is fully
occupied by pirates, old VHF wireless phones etc.
So, even without Ham-users, sometimes the satellite is fully overloaded.
That is very bad in case where the Satellite is into Eclipse but, definitely
we can not much to do in order to prevent that.
As I remember, this Satellite has a function for electric management
(UVC),
in order to "Turn-ON" automatically the transponder, when came on Sunlight .
Unfortunately, on UVC appeared a malfunction (AT) April'07.
Normally, if the batteries are discharged and the satellite comes into
Eclipse, the transmitter is turned OFF by the UVC. It is designed so that
later
an analog system transmitter becomes ON automatically when the terminal
voltages of the battery exceed a set value after the power is available from
the Solar Panels.
However, it appears likely that a malfunction occurs for this function,
and the
terminal voltage cannot turn-ON the transmitter even if it exceeds the set
value - unless commanded from the JARL's ground station.
Therefore, without UVC-function and by carrying 12 years old Batteries,
the Satellite is "naked".
Even without traffic from Ham-operators during the Eclipse, it is not
sure if that prolongs the FO-29's life.
73, Mak SV1BSX
----- Original Message -----
From: "Keith N4ZQ" <n4zq(AT)netzero.net>
To: <sv1bsx(AT)yahoo.gr>
Sent: Monday, July 28, 2008 3:25 PM
Subject: Re: [amsat-bb] Re: FO-29 telemetry
Very Interesting Data you collected, Mak. Maybe it should be suggested
that if FO-29 is in eclipse, that it shouldn't be used. That might prolong
it's life. What do you think ?
Keith N4ZQ
-- "SV1BSX" <sv1bsx(AT)yahoo.gr> wrote:
Hi Domenico, i8CVS
last night I collected the Telemetry from FO-29.
Date 27 July 2008, Orbit #58990. AOS 21:27, TCA 21:34, LOS 21:41.
It is very interesting to point out that, the most part of TLM collected
into Eclipe !
If I am not wrong, just the "Data1" is on Sunlight and the rest DATA on
Eclipse.
At 21:32 the FO-29 came on the dark, 2 minutes before the TCA.
The confirming of Sunlight on "Data1" is obvious also by Solar-Panel Current
(= 1000.0 mA).
Also the battery has the biggest Voltage (16.4 ). In the next "Data 2,3,4,
5 & 6" where the FO-20
was on Eclipse, the Solar-Panel Current is just 9.8 mA.
However, the battery voltage is droped down from 16.4 V (Data1 on
Sunlight)
to 14.2 V (Data 6 on Eclipse). That means 2.2 Volts lower in about 5 mins.
I can't say if that is normal or not. It's just my notice and probably is
OK that but,
it should be very interesting if we can find an older TLM-Data into Eclipse
in order
to compare it with this one.
Finally, the following data are 100% OK. As you know dr Domenico, I am
"old fashion"
CW operator by using pencil and paper, however I recorded my reception
and I confirmed
it twice, in order to eliminate any possible fault.
Here is the collected Telemetry DATA:
HI HI 22 E2 88 D5 8F 05 05 25 00 24 01 01 66 63 98 98 B0 5C B6 B1 B8 BA B9
HI HI 22 E2 88 D5 8F 05 05 25 00 24 01 01 01 83 8B 8A 95 85 B6 B0 B8 BA B9
HI HI 22 22 88 D5 8F 05 05 25 00 24 01 01 01 83 87 86 91 8B B6 B0 B7 B9 B9
HI HI 22 22 88 D5 8F 05 05 25 00 24 01 01 01 84 85 84 8F 7A B5 B0 B7 B9 B9
HI HI 22 22 88 D5 8F 05 05 25 00 24 01 01 01 83 85 83 8E 62 B5 B0 B7 B9 B9
HI HI 22 22 88 D5 8F 05 05 25 00 24 01 01 01 85 84 82 8D 95 B5 B0 B7 B9 B9
-------
Data 1
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode TRIC
Battery Logic TRIC :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 1000.0 [mA]
Battery Current -59.6 [mA]
Battery Voltage 16.4 [V]
Battery Middle Voltage 7.3 [V]
Bus Voltage 17.3 [V]
Analog Tx Power 499.9 [mW]
Structure Temp. 1 11.2 [C]
Structure Temp. 2 13.1 [C]
Structure Temp. 3 10.4 [C]
Structure Temp. 4 9.6 [C]
Battery Cell Temp. 10.0 [C]
---------
Data 2
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode TRIC
Battery Logic TRIC :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 9.8 [mA]
Battery Current 567.6 [mA]
Battery Voltage 15.0 [V]
Battery Middle Voltage 6.6 [V]
Bus Voltage 14.6 [V]
Analog Tx Power 766.4 [mW]
Structure Temp. 1 11.2 [C]
Structure Temp. 2 13.5 [C]
Structure Temp. 3 10.4 [C]
Structure Temp. 4 9.6 [C]
Battery Cell Temp. 10.0 [C]
---------
Data 3
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode FULL
Battery Logic FULL :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 9.8 [mA]
Battery Current 567.6 [mA]
Battery Voltage 14.5 [V]
Battery Middle Voltage 6.5 [V]
Bus Voltage 14.2 [V]
Analog Tx Power 805.4 [mW]
Structure Temp. 1 11.2 [C]
Structure Temp. 2 13.5 [C]
Structure Temp. 3 10.8 [C]
Structure Temp. 4 10.0 [C]
Battery Cell Temp. 10.0 [C]
---------
Data 4
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode FULL
Battery Logic FULL :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 9.8 [mA]
Battery Current 587.2 [mA]
Battery Voltage 14.3 [V]
Battery Middle Voltage 6.4 [V]
Bus Voltage 14.0 [V]
Analog Tx Power 694.9 [mW]
Structure Temp. 1 11.6 [C]
Structure Temp. 2 13.5 [C]
Structure Temp. 3 10.8 [C]
Structure Temp. 4 10.0 [C]
Battery Cell Temp. 10.0 [C]
---------
Data 5
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode FULL
Battery Logic FULL :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 9.8 [mA]
Battery Current 567.6 [mA]
Battery Voltage 14.3 [V]
Battery Middle Voltage 6.3 [V]
Bus Voltage 13.9 [V]
Analog Tx Power 538.9 [mW]
Structure Temp. 1 11.6 [C]
Structure Temp. 2 13.5 [C]
Structure Temp. 3 10.8 [C]
Structure Temp. 4 10.0 [C]
Battery Cell Temp. 10.0 [C]
---------
Data 6
---------
Main Relay ON : DCM ON
SRAM OFF : Packet OFF
JTA ON : JTD OFF
GAS OFF :
SAS OFF : UVC ON
UVC Level 1 : PCU Mode AUTO
PCU Level 3 : Battery Mode FULL
Battery Logic FULL :
Digitalker Mode OFF : UVC ACT/PAS PAS
CPU RUN/RESET RUN :
Spin Period 8356.0 [msec]
Sun Angle 72.5 [deg]
GAS-Z 490.2 [nT]
GAS-X 490.2 [nT]
Solar Panel Current 9.8 [mA]
Battery Current 606.8 [mA]
Battery Voltage 14.2 [V]
Battery Middle Voltage 6.3 [V]
Bus Voltage 13.8 [V]
Analog Tx Power 870.4 [mW]
Structure Temp. 1 11.6 [C]
Structure Temp. 2 13.5 [C]
Structure Temp. 3 10.8 [C]
Structure Temp. 4 10.0 [C]
Battery Cell Temp. 10.0 [C]
======================== END of message ==================
73 de Mak, SV1BSX
------------------------------
Message: 9
Date: Mon, 28 Jul 2008 22:30:17 -0400
From: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>
Subject: [amsat-bb] ao-51 data/power
To: "amsat" <amsat-bb(AT)amsat.org>
Message-ID: <005501c8f123$0ad6d560$6401a8c0(AT)hamshackcomputer>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
hi folks, anyone know if they turned up the power on this sat yet so we can
copy the downlink?
kc8gkf
------------------------------
Message: 10
Date: Mon, 28 Jul 2008 22:50:35 -0400
From: "Raul Romero CA3SOC" <ce3soc(AT)gmail.com>
Subject: [amsat-bb] Re: FO-29 on July 28
To: "Luciano G Nachif" <nachif(AT)terra.com.br>, "amsat-bb"
<amsat-bb(AT)amsat.org>
Message-ID: <D2E2DD5E4F984D739F3ECE7CB37824AF(AT)p42800>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
iam copy very nice
not qso not friend testing satellite
only call from me
very nice team FO-29
Raul
CA3SOC
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----- Original Message -----
From: "Luciano G Nachif" <nachif(AT)terra.com.br>
To: "amsat-bb" <amsat-bb(AT)amsat.org>
Sent: Monday, July 28, 2008 6:51 PM
Subject: [amsat-bb] FO-29 on July 28
> Did anybody hear FO-29 on Monday night 21 UTC?
>
> I tried it over Brazil on orbit # 2,298 but not a word on either its
> beacon or transponder...
>
> 73,
>
> PT9KK
> _______________________________________________
> 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: 11
Date: Mon, 28 Jul 2008 22:59:33 -0400
From: "Gould Smith" <gouldsmi(AT)bellsouth.net>
Subject: [amsat-bb] Re: ao-51 data/power
To: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>, "amsat"
<amsat-bb(AT)amsat.org>
Message-ID: <A91FDADB61364BAEA6ECF4787B73EA5F(AT)GouldMainPC>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
AO-51 is in dual V/U mode for the remainder of the week, both repeaters are
running about 400 mW each. This provides a very good downlink signal.
73,
Gould, WA4SXM
AO-51 Command station
----- Original Message -----
From: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>
To: "amsat" <amsat-bb(AT)amsat.org>
Sent: Monday, July 28, 2008 10:30 PM
Subject: [amsat-bb] ao-51 data/power
> hi folks, anyone know if they turned up the power on this sat yet so we
> can
> copy the downlink?
>
> kc8gkf
>
> _______________________________________________
> 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: 12
Date: Mon, 28 Jul 2008 22:24:23 -0400
From: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>
Subject: [amsat-bb] operational data sats
To: "amsat" <amsat-bb(AT)AMSAT.Org>
Message-ID: <005101c8f122$37ef4970$6401a8c0(AT)hamshackcomputer>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
hi folks, I was just reading the 2003 arrl handbook and they say these data
sats are operational.
ao-16
lo-19
io-26
fo-29
uo-11
uo-22
go-32
mo-46
ao-40
are any of these sats really operational via data?
could they all be non-operational by now?
will go look myself on the amsat web site to see if any of them or all of
them are listed as operational.
sure be nice to have a data sat we can work.
kc8gkf
------------------------------
Message: 13
Date: Mon, 28 Jul 2008 20:13:42 -0700
From: "Greg D." <ko6th_greg(AT)hotmail.com>
Subject: [amsat-bb] Re: FO29 WOW!
To: <amsat-bb(AT)amsat.org>
Message-ID: <BLU133-W325D8D6E967E3258D3F37CA9820(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Does anyone know if they actually "fixed" something on the satellite (re-
configured or something), or if simply giving it some time off to rest was all
it took? My understanding was that the batteries were pretty much shot, and
that there was a problem in the charge regulator that prevented it from
recovering on its own.
Do we need to go easy on it, for example, sticking to daylight passes only?
It's one of the best birds up there, and I'd hate to lose it again!
Greg KO6TH
----------------------------------------
> Date: Mon, 28 Jul 2008 16:57:22 -0700
> To: amsat-bb(AT)amsat.org
> From: dguimon1(AT)san.rr.com
> Subject: [amsat-bb] FO29 WOW!
>
>
> FO29 is back!! TNX JARL.....
>
> Amateur satellite radio communication is back..
> Besides VO52..
>
> Absolutely wonderful to have had a very nice contact with W6ASL, Jim
> in Concord, CA...
>
> A nice chat with NO ONE, complaining about us hogging the frequency...
>
> I used about 3 watts up the pipe with ~10 db antenna..
>
> BANDWIDTH!!!!!!
>
>
>
>
>
> 73, Dave, WB6LLO
> dguimon1(AT)san.rr.com
>
> Disagree: I learn....
>
> Pulling for P3E...
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the author.
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------------------------------
Message: 14
Date: Tue, 29 Jul 2008 04:26:13 EDT
From: G0MRF(AT)aol.com
Subject: [amsat-bb] Delfi N3xT
To: oz1my(AT)privat.dk
Cc: amsat-bb(AT)amsat.org
Message-ID: <d15.2c8a6e42.35c02e25(AT)aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 29/07/2008 01:26:52 GMT Standard Time,
alancresswell(AT)xtra.co.nz writes:
Note that Delfi has been in full sun for more than half its orbit before it
hits ZL and progressively loses the sun before going into eclipse South of
ZL so the above may not represent what happens as Delfi comes out of eclipse
in the Northern hemisphere.
Hi Alan / Ib
That it is still operational over ZL after half an orbit is very
encouraging. Perhaps we have seen the last of the 'feature' of turning off
shortly
after coming out of eclipse. As the team predicted.
At Surrey the team announced the Delfi N3XT project (pronounced 'next').
The satellite will be a 3cube design but with bigger panels and 3 axis
stabilization and a power budget much greater than DO-64. They are looking
for ideas
to put on the mission to give some amateur radio functionality in addition to
the science they have planned. V down link and U uplink will be used for
communications. I wonder if 'we' could suggest something in addition to the
obvious transponder. - September deadline for the mission plan. Perhaps the
BB
could come up with a list of suggestions.
Perhaps with 3 axis control, a small camera with an image to slowscan
converter would be good. - Then the team can use it to confirm the pointing
accuracy of the satellite and potentially use the GENSO network to issue a
'take
picture' command.
Thanks
David
------------------------------
Message: 15
Date: Tue, 29 Jul 2008 14:49:55 +0200
From: "Wouter Jan Ubbels" <wjubbels(AT)gmail.com>
Subject: [amsat-bb] Delfi-C3 Status update 29 July 12:30 UTC
To: "AMSAT BB" <amsat-bb(AT)amsat.org>
Message-ID:
<af4c9b1b0807290549u54398f6t3072a3757e9e60f1(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi all,
please find below the latest status update of the Delfi-C3 / DO-64 satellite
1. We have concluded the first three months of science mission with
great success. A big word of thanks to all amateur radio operators
around the world for collecting and forwarding telemetry, sending
reception reports and observations, and thanks for all the tremendous
support we have received. As of today, we have collected 396564 AX.25
frames through the worldwide network... a truly amazing number. Thank
you all so much.
2. Delfi-C3 has been switched to permanent transpondermode during the
10:00 UTC pass today (July 29th) over the Delfi-C3 groundstation in
The Netherlands. This means that the spacecraft now boots in
transpondermode as soon as the spacecraft exits eclipse. This was
verified by a successful OBC database dump shortly after that.
3. We plan to switch the satellite back into either basic or science
mode, approx. once every 2 weeks for short times during passes over
our groundstation for housekeeping purposes. During these passes
either the 145.870MHz or 145.930MHz downlink will be on transmitting
1200Bd BPSK, and the transponder will then be off. We would like to
encourage everyone to forward telemetry using RASCAL in the usual way
during these passes. Longer periods of BPSK telemetry will be
announced on the BB.
4. Reports have indicated a slight frequency offset of the
transponder, i.e. an uplink of 435.556MHz corresponds to 145.900MHz in
the downlink passband. This was actually known before launch, and is
caused by a slight frequency offset in one of the spacecraft's local
oscillators. The video on YouTube is a video from the first
transponder contact using our "flatsat" transponder prototype in early
2007, which is not the same as the flight model. However, the flatsat
prototype also showed a slight frequency offset, as G0MRF pointed out.
5. The transponder mode beacon is at 145.870MHz, approx 10dB below
PEP, transmitting a CW beacon message, followed by a commemorative
Sputnik message consisting of 6 dits. Actually, the CW beacon is
transmitted using Double Sideband, there are two CW carriers 1200Hz
apart. (Guess where that number comes from hi:)
6. Reports on the transponder's operation are more than welcome,
either on the BB (which is read by us on a daily basis) or directly to
info at delfic3.nl
Having said all this, the team is happy to open the transponder for
use, and wishes you good DX. Enjoy!
73 on behalf of the Delfi-C3 team,
Wouter Jan Ubbels PE4WJ
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 381
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