Sure is! I got mine from Ham Radio Outlet in the US. There are both manual
coax switches and relays. For two antennas I added a diplexer on the dongle
side and one switch for each antenna
73
Burns W2BFJ
On Wednesday, July 30, 2014, Vincenzo Mone vim...@alice.it wrote:
Hi to the list,
i hope
The D72 does do duplex. I'm sure you know it is FM only.
73
On Saturday, July 26, 2014, Richard Lawn rjl...@gmail.com wrote:
Is this an appropriate HT for duplex sat work? I think it is but wanted to
check with the group. I'm thinking of replacing my old boat anchor HT, but
it does do full
I've also signed up, and have probably bought a few hundred dollars worth
of stuff since then. .5% is not huge, and is probably more helpful to
Amazon (via publicity) than to AMSAT, but it can't hurt.
I would add that usually I go directly to the Smile page with my link, but
on the rare occasion
Cool! Thanks for the hint about CrossOver!
I have not tried SatPC32 this way, but for many programs I have had very
good luck using virtual machines. In particular, I have used VirtualBox on
Ubuntu and find it to be pretty good. I also use Parallels on my Mac. Of
course on a slow machine
Hi Vincenzo,
I'm not familiar with your particular SDR dongle, but I have used the
Funcube Dongle. PPM is just 'parts per million'. It is the adjustment to
compensate for inaccuracies in the crystal frequency within the dongle; it
calibrates the frequency setting on the SDR/dongle.
In the US,
Hi Kevin,
There was a discussion of this earlier. It's a combination of the SENDERs
ISP and the mailman software used for this list. The problem is well known
and is bothering people across the country. (The same thing happened with
the mailing lists at my church, for example). The quick
:02 PM, Burns Fisher wrote:
Hi Kevin,
There was a discussion of this earlier. It's a combination of the
SENDERs ISP and the mailman software used for this list. The problem is
well known and is bothering people across the country. (The same thing
happened with the mailing lists at my church
I suspect that one potential solution that uses could employ, albeit with
(as has been stated) a 'different user experience' is to request the bb or
other mailing list to come as a digest. But then one has to be careful
about replying, or you end up sending the entire digest as a quote.
73,
May all our birds be so successful! Congratulations and thanks to
AMSAT-Inda, as well as to PE1RAH for the Dutch transponder.
73,
Burns W2BFJ
On Fri, May 2, 2014 at 8:23 AM, Mani [VU2WMY/KJ6LRS] w...@isac.gov.inwrote:
Dear Friends,
It gives us great pleasure to inform that 'HAMSAT -
You can certainly look at the sun terminator line on the map. If the
entire visibility circle of the satellite on the earth is on the dark side
of the terminator, the satellite is in eclipse.But I also remember
seeing a little legend somewhere on the screen that says Satellite is in
eclipse
I have my station on for every AO-73 pass, so I looked in my dashboard, and
there it was. I had received that Fitter message directly from AO-73.
Very nice.
On Fri, Mar 28, 2014 at 12:00 PM, Bryce Salmi bstguitar...@gmail.comwrote:
My dad sent me this screenshot with the request to forward
You can sign up as a guest to get access for a short time (days? weeks?);
you can also write directly to WA8SME (at the obvious arrl.net address).
And if you spend the $33 to get the board from the Amsat store, you get
all the construction info on DVD.
73, Burns W2BFJ
On Thu, Feb 27, 2014 at
Just a note that the pdf available on the Amsat web site is the QST
article. I don't think there is enough information there actually to build
the WRAPS, although you will get the general idea. The Amsat store also
has a link to QST-in-depth, where you find the construction details on the
AM, Burns Fisher wrote:
The Amsat store also has a link to QST-in-depth, where you find the
construction details on the member's pages, but you still need to log in,
either as a member or a guest.
Thanks! I didn't realize that guest-login was possible.
--
Gus 8P6SM
The Easternmost Isle
Interesting...I have an M3 Eggbeater antenna (looks like the design is
similar) which I'm very happy with.
Burns
On Wed, Feb 19, 2014 at 9:46 AM, M5AKA m5...@yahoo.co.uk wrote:
The Alpha Sky Antenna is now retailing at $89 instead of the previous $299.
Has anyone any experience of this
Hi,
I have a computer which I am currently dedicating to getting AO-73 data via
a FunCube dongle. I leave the dashboard running all the time and when the
AO-73 comes over the horizon, it grabs the data.
But something odd has been going on from the start. After multiple days of
running, the
and
future plans to us. And by us I mean developers, members and (though I
am not one of these) AMSAT leadership.
Thanks and 73,
Burns Fisher, W2BFJ
AMSAT President's Club Member
On Sun, Jan 26, 2014 at 3:39 PM, Michael mat...@charter.net wrote:
Patrick asked.
We're listening... what do
Hi Rich,
The minimum equipment to receive is pretty small. I think it depends in
detail on what you want to do. The signal is nice and strong in the
daytime when you would be doing school experiments. When Funcube is in
sun, it turns off the ham transponder and uses all it's downlink power on
I would add that Celestrak's AMATEUR.TXT file has had 13066AE listed as
FUNCUBE (AO-73) for a little while now.
Burns
On Tue, Jan 14, 2014 at 10:25 AM, Alan wa4...@gmail.com wrote:
Rich,
You have been able to download it for weeks. However, the wrong satellite
was identified with it.
, Burns Fisher bu...@fisher.cc wrote:
I would add that Celestrak's AMATEUR.TXT file has had 13066AE listed as
FUNCUBE (AO-73) for a little while now.
Burns
On Tue, Jan 14, 2014 at 10:25 AM, Alan wa4...@gmail.com wrote:
Rich,
You have been able to download it for weeks. However, the wrong
Ben,
Have you looked at the AA2X Lindenblads? Tony has designed both a 70cm
Lindenblad (with a single dipole driven element and parasitic elements for
the rest) and a 2m Lindenblad (with phasing using lengths of 75ohm (yes,
75!) coax. I'm not terribly skilled at building stuff, but I was able
I should also say that I have an M2 Eggbeater for 2m which I am pretty
happy with. I can pick up AO73 very easily when it is only a few degrees
above the horizon, and that will generally be thorough a lot of trees.
73,
Burns W2BFJ
On Mon, Jan 6, 2014 at 2:21 AM, Ben Gelb b...@gelbnet.com
Oops. Jeff Moore noticed my typo: Tony's call is AA2TX. I left out the T
before.
On Mon, Jan 6, 2014 at 9:32 AM, Burns Fisher bu...@fisher.cc wrote:
Ben,
Have you looked at the AA2X Lindenblads? Tony has designed both a 70cm
Lindenblad (with a single dipole driven element and parasitic
Thank you both for publishing this info! It will be great to use SatPC32
with SDR#!
On Sat, Jan 4, 2014 at 1:06 PM, PE0SAT | Amateur Radio pe0...@vgnet.nlwrote:
Hi Henk,
You're welcome, have fun with this combination, it is working great for me.
@All I updated the article on my blog with
.
(HAL http://www.imdb.com/name/nm0706937/?ref_=tt_trv_qu: I've just
picked up a fault in the AE35 unit. It's going to go 100% failure in 72
hours.)
73,
Burns W2BFJ
On Thu, Dec 26, 2013 at 6:08 PM, Burns Fisher bu...@fisher.cc wrote:
Hi Everyone,
I've used SatPC32 for a number of years, but I
Hi Everyone,
I've used SatPC32 for a number of years, but I have been using it in
simpleton mode, it would seem. Now that AO-73 is in the cubesat.txt
keps file rather than amateur, I apparently have to take the next step in
my education about this program.
Here the current general question:
-Original Message-
From: amsat-bb-boun...@amsat.org
[mailto:amsat-bb-boun...@amsat.org] On Behalf Of Burns Fisher
Sent: Thursday, December 26, 2013 5:08 PM
To: AMSAT BB
Subject: [amsat-bb] Help with SATPC32 (maybe groups) please
Hi Everyone,
I've used SatPC32 for a number of years
in the Standard list, assuming you have
assigned amateur.txt as the
Standard source file.
73s,
Alan
WA4SCA
-Original Message-
From: amsat-bb-boun...@amsat.org
[mailto:amsat-bb-boun...@amsat.org] On Behalf Of Burns Fisher
Sent: Thursday, December 26, 2013 5:08 PM
To: AMSAT BB
Hi Keith,
Just so you know, HEO is probably the most contentious issue around (next
to FM vs Linear). I think it is fair to say that EVERYONE would love to
have an HEO bird, but it's hard-to-impossible to find a launch for free or
cheap. As Domenico said, the German AMSAT (AMSAT-DL) has an HEO
There has been a lot of discussion about AO-10, 13, and 40 (and maybe
others) with various kinds of apogee kick motors (and inclination changers
etc). Rather than fanning any flames, I just want to ask a question: If
you have a motor of a few hundred Newtons, how to you keep the attitude
stable
I saw it way up here in New Hampshire! A great night. First the Red Sox
trounce the Yankees *again*, then a few minutes later the launch visible on
the internet, and then a few seconds after that a Minotaur visible above my
back yard! Really cool! I wish the Fox launch would be visible from my
are for!
I *like* the MEMS compass idea. Pretty cool!
Burns Fisher, W2BFJ
___
Sent via AMSAT-BB@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
Hi Les,
I have an FCD (not Pro) that I use pretty often for satellites and a TS2000
for the main rig Given that the T and R bands are always different, and
given that the TS2000 has separate inputs for U and V bands, I use a coax
switch on each antenna (type N for UHF). One output of each coax
- Original Message -
From: Tom Lubbers K8TL k...@earthlink.net
To: AMSAT BB amsat-bb@amsat.org
Sent: Friday, June 07, 2013 15:55 UTC
Subject: [amsat-bb] AMSAT needs volunteers ???
Over the past half century I responded several times to AMSAT?s call for
volunteers and never heard back
I'm in the process of upgrading my satellite array. Hope to add an AZ/EL
rotor system, and build a complete stand-alone satellite antenna system.
Right now, I'm sharing my weak signal Yagis for satellite duty.
I'll be limited in boom length to about six feet maximum due to
construction of
One thing that would seem to be a concern to me is how to keep the attitude
steady while the ion engine is firing. Yes, not much thrust, but to make
the most of it, you want it pointing in as close to the ideal direction as
possible. I don't know how the various probes like Hayabusa and Dawn do
Hi,
I hope I have not been missing something major on my Kenwood TH-F6 HT, but
I don't think it does full duplex. You can receive two channels
simultaneously, yes. But I don't believe you can transmit on one while
simultaneously listening on the other. That's the capability that you need
to
I'm sort of excited, sort of disappointed...I believe I FINALLY heard
myself on a satellite! I have gotten my 70cm uplink antenna working and
I'm pretty sure I could hear myself on VO-52 as it passed high over New
England at about 7:15PM 2/17 EST, 00:15 2/18 UTC. But I'm a bit unsure.
First, my
Here are a couple things that were less than obvious to me about the ARR
70CM switched preamp.
If you are going to power it with phantom power (i.e. up the feed line) you
need to add a -C to the part number so they will add in the required choke
from the feed line to the power input. But note
Pretty cool idea! Of course Aerotech sells much larger engines with
hundreds of newton-seconds of total impulse, and somewhere close to 100
pounds of instantaneous thrust when it is first lit! And even if it stays
in LEO, this certainly prolongs its life...
What I wonder about is how the
No reception over NH at the predicted time of around 14:25. I kept the
receiver on for a while before and after, but nothing. One of my programs
said it was at 147Km; the other said 127. If 127 is right, then it's
probably down. Otherwise, maybe it overheated.
Also the last telemetry on the
A nice strong pass over NH around 1500z. Many telemetry frames decoded and
forwarded. The little guy is still going strong! Oddly, the doppler
predictions seemed to be pretty close today even at its highest point when
the frequency changes most rapidly. Is there low solar activity or
And the latest as of moments ago: As ARISSat was going over NH (actually
well north of NH) it appears to have switched from low power to high power.
As it rose above the horizon, it was in low (the carrier cut off shortly
after AOS), but then when the carrier came back on, it stayed on.
Despite
I've had good luck with MMSSTV using a Fun Cube Dongle, SDR-Radio and then
Virtual Audio Cable to get the audio from SDR-Radio to MMSSTV (all on the
same PC). Today I threw in a 4KHz filter from SDR_Radio and that seems to
improve the S/N ratio. There was a lot of noise removed by that filter.
Hi,
I had two passes of ARISSat today over New Hampshire. The first one, I
only caught the tail end and got a Kursk frame or 2, but no satellite
telemetry. The second one I had nice and strong as soon as it appeared
above the horizon, but it must have been in low power mode. The
transmission
I'm excited! A few minutes ago on the ARISSat-1 pass over New Hampshire
(US) I received it nice and strong (as usual) got the doppler correction
running on SDR-Radio (have done that before), and with a newly-built
computer in my shack finally had enough processing power to deal with
SDR-Radio,
Message: 1
Date: Sat, 17 Dec 2011 16:55:29 -0800
From: Clint Bradford clintbradf...@mac.com
To: AMSAT BB amsat-bb@amsat.org
Subject: [amsat-bb] ARISSat-1 - NOT Dead yet!
Message-ID: 56bfe4e9-aee0-4f10-a1c7-75d071f78...@mac.com
Content-Type: text/plain; CHARSET=US-ASCII
Wow - ARISSat-1's
I realized my monthly donation to AMSAT ?had stopped a short time ago.?
Wanting to re initiate it I am debating going with Fox vs P3E from our DL
friends.? The DL version is obviously the coolest of the two, though Fox
would probably more immediately economically feasible.? Retired on a fixed
... Remember Apollo 12?
--
Message: 8
Date: Sun, 13 Nov 2011 22:03:01 -0700
From: Rick Tejera saguaroas...@cox.net
To: Clint Bradford clintbradf...@mac.com
Cc: AMSAT BB amsat-bb@amsat.org
Subject: [amsat-bb] Re: Would NASA Ever Launch in this Weather?
Date: Mon, 7 Nov 2011 20:19:55 -0800
From: Art McBride kc6...@cox.net
To: 'Wyatt Dirks' wyattdi...@msn.com, amsat-bb@amsat.org
Subject: [amsat-bb] Re: Trivia Question
Message-ID: 2A718B165CF0471F986F18B6C1A12359@KC6UQH
Content-Type: text/plain; charset=us-ascii
Wyatt,
I would say
Thanks Dave and everyone else who responded, both personally and on the
board. To comment on a couple of comments: I certainly expect to hook up
computer control of the doppler comp etc, but was trying to do it manually
at first just to understand better. Re my problems inside: The shingles
on
Hi everyone,
A few months ago I asked for help receiving the beacon on ARISSAT-1 and got
a lot of helpful suggestions. It turns out that my biggest problem was
trying to listen from inside the house. Moving the antenna outside was the
key. Heaven only knows what my shingles are made of...I
I have been trying to use ARRISAT-1 for the past couple of days.
Despite the fact it was almost directly overhead, I could not get my SSB
signal through the transponder. I am using an IC-910 and arrow beam. I
am fully aware of the antenna issue on the lady. Today I did not hear
anything
First, my sincere apologies...I think I managed to resend the entire digest
to the list. I HATE it when people do that but now I know how easy it is to
do accidentally. Sorry.
Now to what I was going to say: I have the SSB SP-2000 and I'm also very
happy with it. It seems to do auto RF
Don't I recall correctly that the Kursk experiment requires an entire orbit
of data? I think I heard this in t context of low-power operation had to
keep Kursk running.
But in any case, now that the battery is history and we only get power
for the non-eclipse part of each orbit, I'd think that
to be a ham for
something like 50 years, but never did till now!
Burns, W2BFJ
On Tue, Aug 30, 2011 at 9:13 PM, Burns Fisher bu...@fisher.cc wrote:
I was visiting FN95 on my vacation; beautiful hilltop with about nearly 360
degree visibility. I first caught a 30-degree elevation using my F6A
I was visiting FN95 on my vacation; beautiful hilltop with about nearly 360
degree visibility. I first caught a 30-degree elevation using my F6A with
stock rubber ducky. I had to twist it around a bit to find the right best
orientation (horizontal this time) but I got a nice signal the entire
Thanks to everyone for the encouragement. Tonight for the 7PM pass of
ARISSat I went up on a hill where I had a good view of the horizon, taking
my F6a and a slightly-better-than-stock ducky. I actually heard the bird!
Not strongly, and (surprisingly) not until it was way down on the horizon
Thanks for the ideas, Mike. I am using FM for sure, and no I was never able
to receive ARISSat-1 with the stock antenna in the shack.
I'll certainly try removing the duplexer. And thank for the info about the
roofing material. I don't have aluminum siding, but I don't know about that
kind of
I know the ARISSat team is busy with bird #1, but I'm just thinking about
lessons we might learn for version 2. I think it is great that we are
getting so much data about the battery. Assuming that there might be
another satellite launched from the ISS, we will still have the same
man-rating
general ticket too. So thanks for the encouragement even if it was a few
decades before I acted on it :-)
Burns, W2BFJ
On Sun, Aug 14, 2011 at 8:17 PM, Phil Karn k...@philkarn.net wrote:
On 8/14/11 11:31 AM, Burns Fisher wrote:
What about another strategy? Suppose we did exactly what
Larry and Mike:
Thanks for the info. I had forgotten about the call sign color indicating
the camera. My my mystery object is always in the GREEN (+Z) view, so it
is clearly on the spacecraft, and as Mike says, I suppose that is likely the
2M antenna. The shape is what confused me...it appears
Hi,
There appear to be two different TV camera views that have some parts of
ARISSat-1 visible in them. I would guess that one is the 2m antenna, but
the other one appears to be thin and wide with a crook on the end. Almost
like looking out an airplane window at the wing. Can anyone ID that
Hi,
Zarya is a small but important part of the international space station. It
is one of the first segments built and launched by the Russians, and
contains the airlock they the Russians often use (and did use last week) for
their spacewalks.
ISS is how we generally refer to the International
Hi,
I've been listening on a couple of ARISSat-1 passes, both with the bird in
sunlight. The first time I vaguely heard what might have been a voice. The
second time (and this one was 80 or 85 degrees elevation) I could clearly
hear that there was a voice, but could not understand, although
I saw on one of the NASA announcements that the snarffled 70cm antenna would
mean no commanding of the bird. (This was probably before it was realized
that that receive actually seems to work). But the question I have is
whether there IS some commanding of the bird possible. I guess you have to
The spacewalk is current at least 10 minute behind schedule. As nearly as I
can hear, they have not opened the hatch yet (at about 1444Z). Currently
doing leak checks etc. There is also currently no video, except from
Mission Control Moscow. They cosmonauts are wearing helmet cams, but the
While I was also holding my breath as they let the bird bump around loose on
the tether etc, I also notice quite early that there appeared to be no
antenna on one side of the box. I don't think the cosmonauts doing the
deployment broke it off. I think it was not there as it came out the
hatch.
Thanks to everyone who posted pictures. I think Phil Karn's picture number
9204 is particularly interesting. It almost looks like something coming
out of the collar and bending back and down away from the camera. Any
chance that is an antenna stuck somewhere?
But I'd also like to make a
Did anyone in New England (or other locations in the same general area)
receive ARISsat-1's VHF test messages on the ~0230EDT (0630Z) pass? I got
nothing at all using an HT connected to a 2M eggbeater. I usually receive
the ISS fine with this, but nothing at all from ARISsat-1. Of course I know
I'm trying to get ready for the ARISSat-1 test next weekend and its release
a few days later. I've downloaded the telemetry decoder. While I see a few
references o some .wav files to test the installation of the telemetry
decoder, I have not seen the wave files themselves. Anyone have links to
I will be there. Got a pass from my senator. My second launch! (The first
was STS-1!) And yeah, I was a bit unhappy to see that the President will be
there, mainly because of security and also taking up space in the best spots
:-)
Thanks for the repeater and net info too.
Burns, W2BFJ
On
Thanks for posting this...I'm happy that they had a PSLV success after
several problems. I assume this is their last Russian upper stage, and not
the indigenous one that they are developing. Things are a little tight for
them with their upper stage inventory...
73, Burns W2BFJ
On Thu, Apr 21,
Thank you for keeping us up to date, Lou.
Is it a surprise that the battery was low? It appears (from Wikipedia) that
silver zinc batteries have a negligible self-discharge rate. If the
ARISSat-1 switches are off, should there be any drain? (I know from
previous updates that it is so far
According to the ARISSAT-1 critical design review, the battery is
mission-critical for the first 15 minutes. I assume it has to run the
15-minute timer that delays that start of operation until the bird is some
distance from the 'nauts. Based on that info, I would guess it is not
viable to
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