At 11:57 AM 11/30/2011, Lowell White wrote:
Please enlighten me if indeed there might be a way to get something up (and to
stay up) more economically.
Well, a bit of physics here. To get from the Earth's surface to LEO
requires 10 km/S of delta-V. Even if you could get a payload to
How strong is the birdie?...would not a nice 30dB gain preamp raise the
incoming signals and noise level above it?
just a thought:)
73
Graham
G3VZV
-Original Message-
From: Ted
Sent: Tuesday, November 29, 2011 11:10 PM
To: amsat...@wd9ewk.net ; amsat-bb@amsat.org
Subject:
On 30/11/11 01:46, Andy Kellner wrote:
Hmm, unlikely I would say:
A typical WX ballon goes up to about 30 km, maybe 50 km if you get a high
performance one.
You know, from 50km up you can see a fair chunk of the earth. While it
might not be as cool as flying a satellite, a balloon-lofted
If I may, in name of the Amateur Radio Satellite followers here in Puerto Rico,
say thanks for the team and their efforts for maintaining as long as possible
the operation of ECHO, nice little satellite which you know was on AOS by the
fading of the noise.
With it I could work from Brazil up
Made my first satellite contacts to K4DLG (SK), KD8CAO and N3TL in Oct of 2008
on AO-51. I have now logged 6007 contacts with 56.97% on AO-51, 28.9% on
AO-27, 10.4% on SO-50.. the balance on HO-68, SO-67 and ISS. What a blast!
If you can't find me ... I am probably outside trying to make a
--- On Wed, 30/11/11, Gordon JC Pearce gordon...@gjcp.net wrote:
You know, from 50km up you can see a fair chunk of the
earth. While it might not be as cool as flying a
satellite, a balloon-lofted repeater could be quite good
fun. What next, though? Well, maybe a UAV-lofted
repeater. I
On Wed, Nov 30, 2011 at 08:20:11PM +1100, Tony Langdon wrote:
At 11:57 AM 11/30/2011, Lowell White wrote:
Please enlighten me if indeed there might be a way to get something up
(and to
stay up) more economically.
Well, a bit of physics here. To get from the Earth's surface to LEO
Hello
I was a hardcore user of AO-13 back when I was in Puerto Rico, but AO-51 was my
favorite satellite mostly brcause it was easy to work and did it from my car.
Most of my QSO on it was on my drive back home from work. And it was fun to do.
So sad to see it go, but it was fun and the
Unfortunately, no. The birdie wipes out the signal once it gets close to that
frequency.
Others have suggested using narrow FM, RIT, etc., but my TS2K with a good mast
mounted preamp and M2 switchable polarization yagi antenna is no match for it.
The easiest way to get around it, is to use
On Wed, Nov 30, 2011 at 11:40:44AM +, Gordon JC Pearce wrote:
On 30/11/11 01:46, Andy Kellner wrote:
Hmm, unlikely I would say:
A typical WX ballon goes up to about 30 km, maybe 50 km if you get a high
performance one.
You know, from 50km up you can see a fair chunk of the earth.
The easiest way to get around it, is to use one of the many inexpensive
Chinese handhelds as the UHF receiver.
I know at least one station is using a hamtronics 70cm to 10m converter, and
listening via 10m. You can even setup SatPC32 to tune it correctly.
73, Drew KO4MA
On 30/11/11 13:34, Trevor . wrote:
Current research is based on platforms between 17 and 22 km high. At that
height they could provide coverage over a radius of up to 500 km.
Roughly equivalent to NVIS HF communications, then.
In the UK we have the drawback that aeronautical amateur radio
Check this offer, whenever u get a chance http://pandasnap.com/inf.php Hope u
like it :)
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Not an AMSAT-NA member? Join now to support the amateur satellite program!
Gordon,
There are at least two groups that know of that launch High altitude
balloons with amateur payloads. I just joined one: Arizona Near Space
Research. http://www.ansr.org/
The other s in Colorado, not sure of the organization's name though.
The balloons typically reach 90-100K feet in
As many of you know, my satellite radio is a TS2000X.
If you have visited my satellite webpage, you have seen
many recordings of AO-27 and SO50 from AOS to LOS. Most
of these recordings were made when I was not sitting in
front of the radio.
At first I used a uhf mobile to hear AO-27 and SO-50.
Hi!
There are at least two groups that know of that launch High altitude
balloons with amateur payloads. I just joined one: Arizona Near Space
Research. http://www.ansr.org/
The other s in Colorado, not sure of the organization's name though.
Edge of Space Sciences. http://www.eoss.org/
Thanks for filling in the holes, Patrick. I'll see you Saturday at the
hamfest.
73
Clear Skies
Rick Tejera
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org
saguaroas...@cox.net
K7TEJ, AMSAT 38452
-Original Message-
From: amsat-bb-boun...@amsat.org
Hi John,
Thanks for writing that up. With a simple diagram, it would make an excellent
Journal article (hint hint).
I should also point out that High Sierra Microwave makes a UHF to HF converter,
the 435M7 near the bottom of the page at http://www.hsmicrowave.com/page12.html
. It outputs to
Is there any hope for FO29 to come back to life, or is it dead for good?
It was the only linear Mode J, and would be great to come back to life.
73s John AA5JG
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Not an AMSAT-NA
Hi John,
I had heard of the down converter solution before and purchased
a used down converter. Unfortunately it seemed to pick up the TS-
2000 bird nearly as well as the TS-2000. I just lashed the setup
together so maybe taking more care to isolate the converter from
the TS-2000 might improve
It has been revived before, when the solar illumination percentages get better.
73, Drew
-Original Message-
From: John Geiger aa...@fidmail.com
Sent: Nov 30, 2011 12:10 PM
To: AMSAT-BB amsat-bb@amsat.org
Subject: [amsat-bb] FO29 status
Is there any hope for FO29 to come back to life,
- Original Message -
From: John Geiger aa...@fidmail.com
To: AMSAT-BB amsat-bb@amsat.org
Sent: Wednesday, November 30, 2011 6:10 PM
Subject: [amsat-bb] FO29 status
Is there any hope for FO29 to come back to life, or is it dead for good?
It was the only linear Mode J, and would be great
I'm just getting started setting up my IC-9100. I tried to control it with
SatPC32 last night via the USB cable.I couldn't get this to work. I'm seeing
the virtual comports in WIN7 device manager, but SatPC32 doesn't work at all
with them. The USB port works fine with the RT systems memory
KC9DOA mentions that he still had the birdie
problem with a downconverter and that is understandable.
The TS2000 radiates the birdie and if your downconverter
is not shielded or the UHF antenna is too close to the
radio, you might still pick it up. Simple experimentation
will find the right
Hi John,
A 100 % correlation between the decay rate and the daily solar
flux values is not to be expected. But there is a relation
with the longer term average solar flux values.
Furthermore, not only the solar flux (actually the UV radiation
levels) but also variations in the solar wind, in
John's solution is also one I have used for years: feeding a separate signal
into the receive-only HF input on the TS-2000. I ran this way on AO-40 as
well, taking the 2m signal from the atenna-mounted downconverter and running it
through a Hamtronics 2m-10m converter to both the TS-2000 and
At 02:19 AM 12/1/2011, Gordon JC Pearce wrote:
On 30/11/11 13:34, Trevor . wrote:
Current research is based on platforms between 17 and 22 km high.
At that height they could provide coverage over a radius of up to 500 km.
Roughly equivalent to NVIS HF communications, then.
One of those
At 02:28 AM 12/1/2011, Rick Tejera wrote:
Gordon,
There are at least two groups that know of that launch High altitude
balloons with amateur payloads. I just joined one: Arizona Near Space
Research. http://www.ansr.org/
High altitude balloons are fun. There's a group here that launches
Hi Satelliters,
Using Keps from Space-Track for ARISSat-1 (37772) I have been plotting
various parameters including Mean Motion.
Rrecent results were unexpected.
From day 328to 334 the daily change in Mean Motion has been exactly the same.
The orbital decay is going at a very steady rate.
Again nothing heard from ARISSAT-1 on the Nov 30 13:43 Z pass. I will be
observing the 13:59 Cincinnati pass on Thursday Dec 1. I believe it may be
out of eclipse long enough to be active. If so, I will be listening, looking
on 145.930 and trying to send SSTV, on 435.750. Hope many
Greetings,
Using solar data through 2011 Nov. 30 and updating the decay fit I am getting a
re-entry date of 2012 January 12 with a rule-of-thumb error estimate of +/- 10
days or so for ARRISSat-1 (37772).
Regards,
Jim, N8OQ
___
Sent via
I have used a HamTronics downconverter on my TS-2000x for many years, and it
works perfect.
But, to be clear, I am downconverting the UHF signal into the receive ONLY
jack of the radio, on 10 meters.
This virtually eliminates the birdie problem, and allows for full rig
control with SatPC32 just
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