Al,
A bit more information please. Does the rig go into CAT mode when you click
on the C? If not, what sort of serial port are you using? Have you tried
the cable and port with another program? If so, what, exactly, isn't
working? Also, which satellite are you trying to control.
Alan
WA4SCA
I will second that recommendation. I took a series of pictures of my new
rig, sent them to Stephen, and he came up with a recommendation which is a
perfect fit for the DJ-G7. It may not be on that list, but he will know
which one you need. It will even handle the Pryme AL-800 antenna. Probably
A good question. Some people seem to get in effortlessly, others seldom if
at all. I fall into the seldom category, though I had better luck today.
Someone suggested that perhaps my dilithium crystals needed realignment, so
I pulled out my calibrated deviation meter, and verified the PL is set
Hi,
I missed the transponder pass, but managed to catch the FM/BBS pass last
night. As others have said, it was a real kick. I had Wisp running, but
with TX off, and was able to see part of N8MH's connect efforts.
Fortunately the deviation of the packet downlink was not so high that it was
A minor correction. I see that XW-1 is now officially Hope Oscar 68, HO-68.
Well deserved.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Alan P. Biddle
Sent: 21 December, 2009 07:40
To: 'Andrew Glasbrenner'
Cc: 'AMSAT
Jan,
I had a similar experience. I was able to get in, but not as well as
others. This morning, I put a calibrated service monitor on the rig. The
PL signal looked clean, and was at 700 Hz deviation, as specified in the
service manual. That is slightly higher than the nominal 15% of normal
Jeff,
Do you have a PL tone stored in the current satellite channel? Some time
back, 2-3 years, I found that there seemed to be a conflict in programming
the PL frequency if one was stored in memory. I switched to another
satellite channel without a PL tone stored, and the problem went away. I
Dave,
Actually, the operation according to the docs and web site will be 1200
baud.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Dave Aitch
Sent: 18 December, 2009 06:35
To: amsat-bb@amsat.org
Subject: [amsat-bb]
And be certain to add this to the SUBTONE.SQF file:
XW-1,67.0,$3F,1
This will be needed, according to the web site, for the FM transponder.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of vk5...@amsat.org
Sent: 17
Nels,
I have found that the SATPC32 function which allows you to assign a name to
an object number is very helpful at times like this when a new satellite is
being commissioned. It seems they are always changing the name in the keps.
I have added the following line to the AMSATNAMES.TXT file:
Jack,
Those numbers look about right. Certainly close enough to find yourself. I
would suggest using the buttons in the CAT menu to net yourself in. Some
rigs don't work well with the RIT for this.
Which rig are you using?
Alan
WA4SCA
-Original Message-
From:
Just copied a nice pass over the eastern US. Signal was very loud. Using
Object A, USB, I had to tune down 1000 Hz. SATPC32 tracked the signal
throughout the entire pass with no manual tuning required. AOS and LOS
frequencies were the same, with TCA being about 200 HZ higher.
Attached are
Mark,
I would first check the current draw, which should be around 170-180 ma in
RX. And there is always the old trick of hooking it up backwards. Been
there, done that. ;) If that is good, then look at the coax cables.
Alan
WA4SCA
-Original Message-
From:
Works fine with IE8 and Firefox for me.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Michael Baker
Sent: 12 December, 2009 17:00
To: 'Michael Chen'; 'amsat-bb'
Cc: alank...@vip.sina.com
Subject: [amsat-bb] Re: The
Hi,
Another reason not to put the capacitor in the rotator is that it is exposed
to large temperature swings, which will definitely shorting its life.
Alan
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of i8cvs
Sent: 10 December,
According to my prelaunch Echo manual, the S/C has black and silver kapton
tape along the edges to impart spin. The documentation mentions that the
earlier microsats used painted antenna elements to achieve the same result.
Given enough time, the equilibrium rotation rate will be the result of a
I am not a TS-2000 user, but since it is a satellite rig, I tend to pay some
attention when I see it discussed. There are several mods to improve RX
sensitivity. Kenwood did make some fixes in later production runs of the
rig which are reported to make a significant difference. You can go to
Nothing in Tennessee today, either.
Alan
WA4SCA
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I am working on a suggested schedule for AO-13 and AO-40, but haven't got
the mode changes worked out yet.
Soon.
!!grin!!
Alan
WA4SCA
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Bob,
Have you looked at DXKeeper and the other DXLab programs? They do an
excellent job of handling satellite QSOs, including LoTW and eQSL. DXKeepr
will generate a report of VUCC, grid squares, including worked, confirmed,
etc, in different formats. I not much of an award collector, so I
Mike,
Pull down the CAT menue. Look for Speed and the tick boxes below.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Mike Ryan
Sent: 22 November, 2009 09:43
To: amsat-bb@amsat.org
Subject: [amsat-bb] satpc32 rev
Mike,
I had a slightly related problem which turned out to be the phase shift
capacitor in the rotator. You can see it on the schematic. The rotator
would work fine with no load, and would generate more torque than you could
stop with your hand. However, it would not move my array, which is
In my 45 years of haming, I can recall ONE QSO, back in my days on HF AM,
with somebody using NBFM. Until last weekend, I had completely forgotten
that the FT-847 has a button for that, and of course SATPC32 supports it as
well. ;)
One thing I find is that the discriminator consistently centers
I would suggest that you look around for a store which _specializes_ in
supplying builders. They are usually primarily wholesale, but do retail as
well. We have one up the road a few miles. They have a huge selection of
similar boxes. Some are small enough to mount a relay in, and one is big
Alex,
Actually, the most recent revision of the cubesat specification bumps a 1U
cubesat to 1.33 kg, or 4 kg for a 3U cubesat. See section 1.1, pg 5.
http://cubesat.atl.calpoly.edu/media/CDS_rev12.pdf
But don't go crazy with that extra mass. ;)
Alan
WA4SCA
-Original Message-
From:
Alex,
A good post. We are indeed adapting to the Brave New World of ITAR, and we
are not alone in that. At a recent SmallSat meeting I attended, there was
even a tutorial for companies large and small, large being the size of
Boeing. It was about how to work with and around ITAR if you are
Thanks John,
It would be very interesting to hear from other parts of the world where
only 1-2 stations are on whether the dropouts are similar. That would help
clarify the situation. SO-50 has similar dropouts, and AO-51 did as well
when the PL access was enabled.
Alan
WA4SCA
-Original
Jack,
That looks very reasonable. Remember, you need to tweak the numbers
slightly as time goes by to compensate for aging, temperature, etc. The
docs for SATPC32 explain how to do this.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org
I noticed that the downlink is a bit off the _current_ published
frequencies. Right now the congestion is far too high to do tests on North
American passes, but has anyone elsewhere with good Doppler correction
software had a chance to tune around for the optimum uplink?
73s,
Alan
WA4SCA
I would add my vote for that. NOVA is a great program, and with slightly
fancier graphics. However, SatPC32 just works, and works well. It easily
handles even Mode-S. The learning curve is very moderate, the documentation
is superb, and the support is even better. Honesty requires me to
Afternoon,
There have been some changes of the Space Track designation for SO-67
recently. Originally, it was object 35867. According to the AMSAT-SA page,
it is now object 35870, with the old 35867 now FRIGATE/IRIS according to
Space Track. This is reflected in the AMATEUR.TXT list most
Based on this, you will need to add a line in the SUBTONES.SQF file. For
the FT-847 this is:
SO-67,233.6,$01,1
It will be different for the FT-736, and possibly other rigs, so check the
file for hints.
The line in the DOPPLER.SQF file will read:
SO-67,435345,145875,FM,FM,NOR,0,0
Looks like
Nick,
By stall command, you mean that if the rotator does not move after a period
of time, the program stops commanding motion? If so, I have never seen it
anywhere. I use the same combination.
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org
Michael,
That is a good reference from JoAnne. Most on the list will work well,
particularly the TH-D7 and the IC-W32A. However, before you purchase one,
be certain to research how well it actually works for satellite ops. For
instance, I have an Alinco DJ-G7 which has great specifications,
Michael,
The Politically Correct term is Propulsion Incident. More seriously,
there were almost certainly cables and wires with damaged insulation which
nevertheless worked fine where they were. Now imagine them flexing or being
disturbed, as would be the case if they attempted to deploy the
Tim,
Getting an image is clearly possible, but only if you can get a certain
agency known by its initials to do it. Recall that Skylab, circa 1973, took
some damage on launch. Some amazing pictures were provided by said agency,
among others, to assess what was needed for repair. Now imagine 35
Dave,
I see you CCed the ao51-modes address. They are always looking for input
for both new and old but popular modes.
Alan
WA4SCA
Sent by my toothbrush.
-Original Message-
From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of KG4ZLB
Sent: 04 October, 2009
Morning,
For those who will be attending the Symposium, the forecast looks like a
good stretch of Fall weather. Crisp, mostly clear, but the possibility of a
few showers.
Wed Oct 7
H 74°
L 56°
Thu Oct 8
H 67°
L 49°
Fri Oct 9
H 66°
L 48°
Sat Oct 10
H 65°
L 52°
Sun Oct 11
H 66°
L 50°
Alan
Clint,
As the FNG, I can say I have been awed by the old timers' dedication,
experience, competence, and especially the just plain hard work which
happens behind the scenes. We live in interesting times, in the sense of
the Chinese curse, and I firmly believe that we as an organization will take
Trevor,
Bill is right on about propulsion systems. There are several types of
thrusters being worked on. Most are being pitched to extend the life of LEO
cubesats, but in principle they could get us to MEO. As always, cost is a
huge factor. When the Boeing rep says after a vendor
Mike,
Object number?
Alan
WA4SCA
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Managed two packets on the 1843 pass over the US. Signals are good, but
very irregular in spacing. Using 35934, aka object D, worked well. The
actual frequency MAY be a KHz lower or so.
Unfortunately the address to send TLM is bouncing:
uw...@informatik.uni-wuerzburg.de: host
Morning,
I looked for signals this morning on the 1500 UTC pass over the eastern US.
Nothing heard on or around either published downlink frequencies. Anybody
else hear it today?
Alan
WA4SCA
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Trevor,
Thanks for that. There had been some initially on 435.353 or so. CW
blocks. Perhaps they have now transitioned to the regular frequencies.
Alan
WA4SCA
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Not an
The satgate system was shut down about 2 years ago. The attached posting by
Roy sums it all up. Of course, WB4APR is doing his substantial part in
keeping some of the functionality available, as are the good Winlink folks.
Alan
WA4SCA
=
After many years of packet
I copied a pass using Object C last evening, and it was in perfect agreement
on AOS/LOS, and good agreement on Doppler correction. The next pass I can
look at will be tomorrow morning.
Alan
WA4SCA
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Doug,
Very interesting and useful list. As the owner of an Alinco DJ-G7 I would
comment that while it technically is a full duplex rig, it has proved
marginal at best, and unsatisfactory really, as a satellite rig due to
deficiencies in performance.
Alan
WA4SCA
Jerry,
A lot of very talented, determined people are working against stiff odds to
actually bring that about. They share the dream, as well as the solder
burns which come with the territory.
Alan
WA4SCA
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David,
And the uplink is on the QRP transponder uplink. Joy.
Alan
WA4SCA
So with all the space on 70cm.
The voice beacon is on the same frequency as AO-51. Is that right ?
David G0MRF
In a message dated
Drew,
Interesting, and good to know. The flexibility of AO-51 gives us lots of
options if needed.
73s,
Alan
WA4SCA
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I have one which I received in July after waiting for 2+ months. I have the
latest, as of today, firmware installed.
My experience with mine is that the RX sensitivity does not meet
specifications, and the sub band is worse than the main band. I have an old
Icom IC-T7H, same published
Had a couple of good QSOs this morning. According to KD8CAO, the mode
should be around a bit longer while the new schedule is being finalized.
Have a great Labor Day weekend!
73s,
Alan
WA4SCA
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Most people find that 10 watts to a gain antenna is workable, but get much
better results with a brick amp to bump that up to ~70 watts. And while
doable, working without active Doppler control is equally painful for you
and the stations you are TRYING to work.
My recent acquisition, an Alinco
Howard,
The one encouraging thing is they seem to be making progress in resolving
the problem. It remains to be seen whether they will bring it up to TH-D7
standards. Having recently flashed mine to the latest firmware, and with a
good external preamp, it may be time to give it another go.
John,
Interesting report. It was good to work you during the last V/S period. I
have been on that mode for years, as well as L/S, but you quickly get your
WAS, Worked All Stations. Glad to see that the number is expanding.
I came across a G3RUH 60 cm dish with a circularly polarized patch
Yaesu has had at least a notional design for a replacement to the FT-847 for
some time, but has been holding off going forward until there are new
satellites which will increase demand. If this does well, perhaps Yaesu
will reconsider.
Alan
WA4SCA
Jeff,
Actually, the question I asked is whether the Chip Doctrine might now be
changed, not the least reason being that Chip has moved on. Also, I count
more than a few satellites launched recently, though none are P3.
However, like you, I am holding out for the Flex rig. Had a great
Hi,
Sometime back, while my rig was on back order, I asked if anyone had used
Icom programming cables with it. My rig finally arrived, as did shortly
thereafter new firmware and most recently a memory cloning program. With
that, I have been able to test both the Icom OPC-478 and the RT Systems
We got a few good words in the Huntsville Times:
http://tinyurl.com/qw6xfk
Tim Cunningham, N8DEU, was off conducting the AMSAT and APRS forums when the
reporter came around.
Alan
WA4SCA
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Drew,
Thanks for the thoughts. BTW, there is yet another firmware update. You
have to dig down a bit, as there is nothing at the top level of the Alinco
site to tell you. Also, the English language cloning software beta is
available on the web site. Both came out after I hit the road to
I will second that. I got a message from someone who did not get the first
mailing. I scanned the bios and sent them to him. The latest on the web
site it for 2006.
Alan
WA4SCA
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Howard,
They are on packet now on 145.825 MHz.
Alan
WA4SCA
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Fabiano,
You should if at all possible follow the One True Rule of Doppler tuning and
tune both. If you tune both the uplink and the downlink, and the person
with whom you are talking does the same, it makes the conversation much like
a terrestrial HF communications. I often have a QSO from AOS
Jim,
AO-27 always, at least under normal conditions, structures its operating
period in blocks, including that leading telemetry burst. You can see the
schedule here:
http://www.ao27.org/AO27/listing.shtml
73s,
Alan
WA4SCA
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VE3CSA working using his own call. Doing a great job handling FD exchanges!
Alan
WA4SCA
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Mani,
SATPC32 works perfectly with that combination. I have been using it for
several years.
Alan
WA4SCA
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N4FR will be operating from Franklin, TN, just south of Nashville.
Alan
WA4SCA
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Bob,
Click on a satellite in the Available column to put it in the Selected
column. Click on one in the Selected column to remove it.
Alan
WA4SCA
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Jim,
There is a similar but not identical issue with my FT-847. I have used two
different approaches.
I used to run the leads, mostly in parallel except for the 1200 and 9600
baud outputs, to radio ports 1 and 2 on the DSP-2232. Switching the modem
loaded automatically switched the inputs
I have been following this for a couple of years, either putting off
projects it will make obsolete, or acquiring goodies such as a GPS
disciplined 10 MHz oscillator which will make frequency drift and
calibration errors a thing of the past. There was a false start on the
transverters, and some
The only launch I have seen was from one of the range safety aircraft. Got
a great view of the last Challenger launch. That was enough.
Alan
WA4SCA
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Mine arrived in TN today as well. I have tucked it away to read at Dayton,
but the new, larger format is great.
Alan
WA4SCA
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Norman,
From a loss standpoint, almost anything will be fine over the 10' length you
mentioned. The real issue is the quality of shielding, and the placement of
the leads. You will be operating in the near field of the antennas, and you
want to minimize RX pickup from the TX antennas before you
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