All,
We are having a difficult time trying to restore AO-51 to operation. Currently,
the satellite will not retain the upload of the flight software across eclipse.
The batteries are in very poor condition. We have a few more things to try, but
with eclipses peaking around July at ~27 minutes,
Hi Drew all,
I'm not 100% sure how the software uploads take place, however I have
a suggestion.
Would there be any benefit having one uplink station on the west coast
and another on the East coast, purely to allow the complete upload to
take place before an eclipse?
Perhaps the users of AO-51
Pete,
Actually, there has been a west coast control station, for exactly that
reason, for some time. However, the problem is that without being able to
keep the computer up through eclipse, everything is lost each orbit.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org
Hi Pete,
We can actually get all of the really important files up in an optimum pass,
but since all of that is stored in volatile memory, when it comes around again
it's gone. AO-51 requires the software to be running to do much of anything, as
all the audio and control is run through the
With the recent bad news about AO51, possibly for the long term, I know
several are wondering about HO68's status. Does anyone have any sort of
update on when/if it will be back in service? I understand it may have long
term issues like AO51 may have, but it would be nice to at least know
Ok, all is a little clearer right now!
I wasn't aware that the sat relied on volatile memory to store the
main software. Was there a particular reason why this was chosen over
non-volatile or was it just an oversight that this issue would
eventually happen when the batteries became exhausted?
I'm not an expert here...but the memory is constantly washed for errors from
radiation. I think the non-volatile type stuff didn't/doesn't have the
read/write cycles we'd need for that. There is ROM onboard that holds the
bootloader and a very stripped down OS.
73, Drew KO4MA
-Original
Does anyone know if I can copy the logbook file for HRD out out of my tower and
slip it into my laptop? If so what is the name of the file, I am having troble
finding it...
Thanks, and am shedding 68 tears for Echo, but have not lost HOPE...
Kevin
KF7MYK
Here's your answer, courtesy of Google:
http://wiki.ham-radio-deluxe.com/index.php?title=Template:FAQ_Logbook_database_file_location
George, KA3HSW
- Original Message
From: Kevin Deane summit...@live.com
To: amsat-bb@amsat.org
Sent: Fri, May 6, 2011 12:58:06 PM
Subject:
Thanks guys that was fast, I guess I could have looked a little harder...Must
be getting old...
Kevin
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... If you have 9k6 digital capability, you can listen in on our attempts at
recovery on 435.150 on many passes over the US. ...
I am packet-illiterate. But HRO locally does not have the Yaesu mic cable in
stock to interface any of the West Mountain RigBlaster products I could
purchase for
Hi Clint,
I'm not sure I'd spend any money in order to maybe happen to catch a
handful of packets ACKS from the satelliteprobably not worth it.
You can probably get away with running the 9k6 packet line out of the
radio straight into a computer sound card and using something like
MixW or
Clint,
You can't monitor 9600 baud through the normal audio channels. They do not
have enough bandwidth, and have too much filtering. Many rigs do have
dedicated I/O for the purpose. Likewise, standard packet/PSK31 interfaces
will also fail due to lack of bandwidth. You will either need one
Listening in on the 05/06/2011 - 2250Z 435.150 with 9.6K capability --
Nothing heard -- no carrier detected ..
probably not a good sign -
WA3SWJ
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Not an AMSAT-NA
... you can't ... shouldn't ... don't go out any buy anything just for this
...
Heavy sigh.
It's just that this has been such a good friend ...
Guess I picked the wrong week to stop drinking Pina Coladas.
Long live AO-51. I have a 67 degree elevation pass coming up in 30 mins ...
Clint,
Perhaps the result will be more activity on AO-7, VO-52, FO-29 using
SSB? Looks like I am getting my satellite array working just in time
to miss AO-51? Be nice to see HO-68 again.
Hearing of Fox, when is it planned for orbit? P3E? any other
lurkers about jump up into space? oooh
Hi All,
I would like to know is someone on the list has already tested the
new all mode IC 9100 to verify the existance or not of birdies
into the VHF/UHF/SHF bands.
The specifications of the IC 9100 says that the spurious signals are
suppressed by more then 70 dB from HF to 50 MHz and by more
Was anything attempted that normally would have been heard on 435.150 just now
(5PM PDT)?
Nothing was heard ... It is scary being so attached to an inanimate object that
I have never been any closer than 500 miles.
Clint
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Sent via
My two cents worth-- I like the ELK for portable operation first because it
lays flat in the trunk and it is a single feed line antenna (although the
front line is unusual) I do use an Arrow also with two feed lines to a
Combiner/Duplexer/Diplexer/ Whatever mainly or when I use two rigs for
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