Hi Howard and Marv,
I had exactly the same problem. The issue revolved around the
7806 regulator the is used in the G-5500 control box that
supplied the 6V DC to the position feedback potentiometers
on the rotators. If you monitor the output voltage of the regulator,
you will find they drift down
- Original Message -
From: Fabiano Moser fabianomo...@gmail.com
This make me confused becuase if I have new kepler downloaded, why my
audio
always comes above or below the downlink who Hamradiodeluxe adjust on my
FT-847.
HRD 5.0 is better - but in general you'll have to adjust the
Hi Greg,
actually, when we developed RASCAL, we had PSK-1 (or another KISS TNC that
could do PSK) support in mind. However, PSK TNC's such as the PSK-1 have
become a scarce item:) Furthermore, COM port access in JAVA can be tricky
sometimes, especially when you want to preserve the cross platform
This is all good except for one thing,
The IF window is 10 times too small.
Look at the mess the FM single channel birds are with their tiny surface
foot print. Imagine now a whole hemisphere worth of people trying to
use it at once. The thing would be useless
i8cvs wrote:
- Original
Fabiano,
Are you using the Beta version of Ham Radio Deluxe - v 4.1, Build 1989? That is
the version I have installed. In it, the bottom slider on the right side of
the tuning bar will enable you to fine-tune the uplink and downlink. The top
slider allows you to use HRD to tune up and down the
Hey, I'm not crazy... Hi !! I'm looking for satellite prediction software or
similar for Commodore 64. Anybody know where I can find this !?!?
You might want to contact John Magliacane, kd2bd - as I recall he wrote some
early basic code for the c-64 that later was incorporated into PREDICT.
Hi Domenico,
I could be wrong but I think your budget is correct for a regenerative
transponder but for a bent pipe transponder we need to add the uplink noise to
the downlink noise where
C/N (total) = 1/((1/C-Nup)+(1/C-Ndn)) which in this case would be about 6.7 dB.
Still pretty
- Original Message -
From: Howie DeFelice howied...@hotmail.com
To: amsat-bb@amsat.org
Sent: Friday, July 03, 2009 3:14 PM
Subject: [amsat-bb] Lunar link budget
Hi Domenico,
I could be wrong but I think your budget is correct for a regenerative
transponder but for a bent pipe
Hi Joe,
The specification given by Miles WF1F is for a Lander transmit power of 5 to 10
watt in 70 cm from the moon.My calculation shoves that a single SSB station to
be received in 70 cm with a S/N ratio of 10 dB on the earth a power of 10 watt
in 70 cm is necessary on the moon.
If you like
Doug, I had the same problem loading it into InstantTrack. Both the
2-line and text versions.
Jerry
N0JY
Doug Kuitula wrote:
Hi all,
Looks like there may be a problem with the latest 2 line dated for day 183.
I tried inputting them and came up with numerous checksum failures.
Has
I had no errors with the new keps but the orbit numbers are wrong, and
comparing them with the Amsat online
forecasts they are way off.
I just wish I hadn't deleted the old set.
Perry WB8OTH
___
Sent via amsat...@amsat.org. Opinions expressed are
You don't say which satellites or where you obtained the keps.
I do as you ought to be doing,
download just the ones I want from SpaceTrack.
They're generally updated twice a day.
Doug Kuitula wrote:
Hi all,
Looks like there may be a problem with the latest 2 line dated for day 183.
I
I agree Nigel. Downloading a Favourites file from Space Track keeps a lot
of clutter out of the databases.
I use Nova to automatically download the favourite file and use that same
file for SATPC32.
-Original Message-
From: amsat-bb-boun...@amsat.org
On Thu, 2009-07-02 at 11:15 -0400, David - KG4ZLB wrote:
On the contrary, we need more LEO's to augment and replace the existing
aged fleet.
Whilst AMSAT works on the HEO's lets put some of our efforts towards the
Universities who seem to regularly put up 2/70 satellites!
I'm relatively
On Thu, 2009-07-02 at 18:21 -0500, Gregg Wonderly wrote:
It seems to me that the correct choice is the highest frequency we can get on
board for at least 24dB at the longest length of antenna that we would be
allowed to send up.
Lunar gravity is weaker and there is no wind. So, a
All,
There will be some outstanding ISS Visual Passes over the US this weekend. See
the article link below for more info.
I hope the weather in your area will be good for viewing.
Enjoy!!
73, Frank Bauer, KA3HDO
http://www.space.com/spacewatch/090630-space-station-spotting.html
We have met the enemy and they are us. WE need to do something. Yes, $15m is
outta reach, but isn't there a cash prize for the first on-commercial moon
landing?
Dave
DM78qd // KA0SWT
If it weren't for Philo T. Farnsworth, inventor of television, we'd still be
eating frozen radio dinners.--
Could the antenna be a launched in the craft as piece of small, folded
reflective plastic that when activated by gas or ??, expands to a dish
shape, and becomes a super large plastic large dish? The dish then could be
any size we wanted it to be and not be a hindrance to the launch craft size.
Ooopps... Sorry. It's $20 million.
http://news.bbc.co.uk/2/hi/technology/6993373.stm
Dave
DM78qd // KA0SWT
If it weren't for Philo T. Farnsworth, inventor of television, we'd still be
eating frozen radio dinners.-- Johnny Carson
+
-Original
Old keps 6/25/09
Roger
WA1KAT
- Original Message -
From: Ray Hoad r.h...@att.net
To: AMSAT KEP k...@amsat.org
Sent: Thursday, June 25, 2009 10:29 PM
Subject: [keps] orb09176.2l.amsat
SB KEPS @ AMSAT $ORB09176.N
2Line Orbital Elements 09176.AMSAT
HR AMSAT ORBITAL ELEMENTS FOR
Actually, its very bad as it barely supports 1 user at 3 times the proposed
maximum power level. You could support 100 users on a HEO with the same SNR and
power output. Most users will consider 10 dB SNR to be marginal and want
another 10 dB of signal strength on the downlink. The same amount
Sorry,
The keps I'm having problems with are from the AMSAT download. I was able
to get rid of the checksum errors by adding a few spaces after the decay
rate number on line 1. I'm downloading them into Instant Track.
73 de Doug KA8QCU
- Original Message -
From: Doug Kuitula
You think you can get to the moon, install equipment, for $20M and have change
left?
Dave wrote:
Not a word that the $20 million prize is more than the cost of a moon flight
and that afterwards there'd be enough to buy all kinds of HEO/LEOs?
___
A more meaningful appoach for an exercise like this is to start with DC
power input for the entire package. Receivers consume power and transmitters
(especially linear ones) are inefficient and the efficency goes down with
increasing frequency. On the moon, you also have to heat the electronics
Hi,
The keps obtained from the BBS today loaded and worked OK with SATPC32.
However for some other software such as ORBITRON and SATSCAPE were I
stripped out the header and footer I did run into a rather strange problem.
These programmes would not list all of the satellites in the menu to
Been Thinkin',
John B. Stephensen wrote:
A more meaningful appoach for an exercise like this is to start with DC
power input for the entire package. Receivers consume power and transmitters
(especially linear ones) are inefficient and the efficency goes down with
increasing frequency. On the
Videos of the six presentations at the AMSAT Forum at the 2009 Dayton
Hamvention are now on the AMSAT website. Click on this link
http://www.amsat.org/amsat-new/information/videoNews.php
or go to the AMSAT website and click on AMSAT Video News about halfway down the
page in the left column.
Excellent - many thanks.
Simon Brown, HB9DRV
www.ham-radio-deluxe.com
- Original Message -
From: Stephen E. Belter s...@wintek.com
Videos of the six presentations at the AMSAT Forum at the 2009 Dayton
Hamvention are now on the AMSAT website. Click on this link
Greetings,
First of all, I appreciate the efforts of the dedicated few of
AMSAT that actually go out and make things happen.
You don't hear Thank you often enough.
Being this early in the idea phase, there are a lot of
questions and unknowns. What frequencies to use and
what the link
HEOs are illuminated 99% of the time and LEOs are illuminated 50% or more of
the time with eclipses by the earth lasting only 45 minutes. Thermal inertia
can keep the temperature from swinging too far in either direction. Since the
satellite is in a vacuum, heat can only be radiated away as in
Hello all,
This moon thread has prompted some interesting thoughts. Perhaps some
of you might like to channel that talk into action.
I chair the AMSAT Engineering Task Force (ETF), of which Drew
Glasbrenner is a member. He has already noted the need for volunteers.
I'm going to comment on one
Why not initially inquire of William Leijenaar PE1RAH about his completed
transponder, the Mark I, Type I of which is already in space in the
satellite from India?
Last heard he was looking for a standardized frame for a cubesat to place it
in...work with him financially, provide him with, or aim
Mark,
Can we come and see the demonstration? And I hope the weather is nice :-)
LeRoy, KD8BXP
http://www.HamOhio.com
--Original Message--
From: Mark Spencer
Sender: amsat-bb-boun...@amsat.org
To: amsat-bb@amsat.org
Subject: [amsat-bb] AO27 Demonstration during Teachers Institute
Sent:
The thing is we have 'discussed' this a FEW times in the past and
the ideas get better each time plus the technical discussion gets
more information input each time.
Maybe this time things will progress beyond the talking and more
into the planning/design phase.
James W8ISS
I agree on the Lunar X Prize,
http://www.googlelunarxprize.org/
There are 19 teams so far in the chase,
why do we not contact every one of them with the proposal?
there is 30 million purse there a waiting.
we could even say give us the ride and they can keep the prize
Joe WB9SBD
Armando
In a message dated 03/07/2009 20:46:44 GMT Standard Time,
kd6...@comcast.net writes:
Building a prototype that works on Earth for project like this is only a
few percent of the effort required. Treating it as a radio club project
won't be effective as people need to sign up for a 5-year
It looks like I have a copy of VR-85. Please let me know if you need a copy.
I'll have to fire up the C-128.
I need to check it out anyway.
Mike (K9QHO)
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA
The thermal cycling would make a gas Bag antenna interesting as the gas
expands and contracts with temperature changes.
I like Bob's idea of an array of collinears lying on the moon's surface,
since ground on the moon must be quite deep due to the lack of moisture.
This makes 2 meters very
38 matches
Mail list logo
