I don't have experience with 3rd party controllers but the position
reporting is fundamentally different. Instead of potentiometers
indicating the present az/el, there are just pulses indicating when the
motors have traveled a degree.
So a little more work is associated with keeping track of
Hi,
A problem that I've had for many years is how to track when the
satellite's azimuth crosses across the rotator's end-stop, ie. when the
azimuth changes from 0 to 359 degrees.
My rotator turns between 0 and 450 degrees, so it should be possible to
use angles between 360 and 450 to
Clive:
If you're running Windows, this won't help you, but MacDoppler does
this easily, and without operator intervention. I'm using the same
equipment you are, but with a MacBook Pro laptop, and it works
beautifully.
73,
Dave - K7DAA
On Feb 8, 2010, at 2:17 AM, Clive Wallis wrote:
Spacetrack
Endeavour = NORAD ID 36394 2010-004A
73 Jean-Claude tk5gh
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings:
Hi Clive,
Dave is correct about MacDoppler, it works a treat.
What Don (the writer on MD) and I do for GENSO is set a rotator dead
spot and indicate to the software that it should allow the
elevation to flip the rotators 180 degrees before the pass. The
prediction algorithm then knows that if
Due to the Blizzard of 2010, the AMSAT office is closed. I will be in
(hopefully) tomorrow.
--
73- Martha
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite
Hi Dave,
A user of the LVB Tracker, SatPC32, and a Yaseu G-5500 *can* do 450 AZ
and 180 EL if they choose to. It's all configurable. The LVB Tracker
must be calibrated with either 360 or 450 for azimuth , and either 90
or 180 for elevation. From there, the operator just has to make sure
the
Flex is fully aware that the price of the V/U + the 5000 will limit the
sales of the V/U. For those already owning the 5000, the V/U together as
two sixty watt units with high performance and fully capable of full
duplex operation, and is CHEAPER than the same system assembled from
DEMI units.
Hi Clive,
I sent you the following message off the list but my mail was returned by
the mail delivery system.
SatPC32 supports the 450° range of the G-5500 (to avoid a full turn of the
azimut rotor when the satellite passes your location in the North).
You can choose the 450° in the menu
Here FO-29 Telemtry I received 08-02-2010 19:00 CEST
HI HI 20 C2 88 D5 00 84 00 00 09 60 01 01 7A 65 9C 9C F0 8C 8D 86 83 89 86
HI HI 20 C2 88 D5 00 84 00 00 09 60 01 01 4D 65 9C 9C F0 42 8D 86 83 89 86
HI HI 20 C2 88 D5 00 84 00 00 09 60 01 01 3C 66 9C 9C ED 7A 8D 86 83 89 86
HI HI 20 CT 88 D5
In case you missed it, here's a link to a HD video of this morning's launch of
the Endeavour.
http://tinyurl.com/y8uhdhj
The Endeavour is carrying a lot to the ISS, including the last module -
Tranquility - the 21-foot-long, 14-foot-wide module that will be mounted to
Unity, facing Earth.
http://www.flickr.com/photos/milesmann/sets/72157615795065606/detail/
It was too cold to get out of bed at 4:30 am est today to see the shuttle
launch.
So here are some pictures of a Night Shuttle Launch, taken from Boston area on
March 15, 2009.
This is what the engines would have looked
I copied two stations on SSB at 435.733 for the second half of pass
#732, 10:30-10:50 utc. They did not pass call signs while I listened.
I hadn't reprogrammed he FT-847 for SSB so my uplink was on the wrong
freq. but Rx signals were arm-chair until elevation 10 deg. Not
too bad for
UNISAT-3 perhaps?
http://www.spacequest.com/success_stories.php
http://www.n2yo.com/browse/?y=2004m=6
73,
Mark N8MH
On Mon, Feb 8, 2010 at 2:53 PM, Clint Bradford clintbradf...@mac.com wrote:
In that famous photo of the entire payload of satellites that included AO-51
(where AO-51 is at
Okay, maybe NOT UNISAT-3!
http://www.spacequest.com/image/echoandunisat3.jpg
Mark
On Mon, Feb 8, 2010 at 3:48 PM, Mark L. Hammond marklhamm...@gmail.com wrote:
UNISAT-3 perhaps?
http://www.spacequest.com/success_stories.php
http://www.n2yo.com/browse/?y=2004m=6
73,
Mark N8MH
On Mon,
I'm looking for a used but good 440 preamp, one that can handle at least 50
watts or so.
Please reply off list with make, model, etc.
73 de W4AS
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join
Too late to work anyone in lower-48 but heard my own signal,
FB. 1850-1935 pass later on Feb. 9th (9am here) we will try
again. Transponder shut down just as Northern Japan got AOS.
73, ED - KL7UW
At 11:38 AM 2/8/2010, Edward Cole wrote:
I copied two stations on SSB at 435.733 for the second
Clint Bradford wrote:
In that famous photo of the entire payload of satellites that included AO-51
(where AO-51 is at about at the 6:30 position - with that largee Italian
engineering bird to its left), there's another satellite at about 02:30 that
looks exactly like AO-51 (size and visible
... Those are Aprizesat-1 and -2, aka Latinsat C and D. They belong to a
SpaceQuest related company, hence the common appearance to AO-51 ...
THANK YOU, Drew! I will update my presentations ... (grin)
Clint, K6LCS
http://www.work-sat.com
___
Sent
I read that article, and when I got to the last of it and he mentioned that he
was using a pre-amp for working the FM birds, I wondered out loud: Why???
We're working '27, '50, and '51 with HTs and meager antenna improvements.
Better yet, build a tape measure Yagi - you can realize great gain
Being omnidirectional, this antenna offers no gain, so preamps are, in
my opinion, absolutely essential (at least on 70cm). Moreover, you
need to use one that has a proven low noise factor. For practical
purposes , this means SSBUSA or ARR models.
By way of contrast, note the reception of AO-51
Well, each to their own, obviously. I've worked the birds using the
Arrow antenna and an HT, and that works okay, but I secretly dream about
working them from the shack instead of sitting in the back yard, and big
pointable antennas are a no-no in my neighborhood. I can get away with
something
... chest deep snow while 20 below ...
I have read about snow. And saw a picture of it once.
I was born and raised here in Southern California, where, when it reaches, oh,
about about 58 F degrees, we start dying.
Clint
___
Sent via
... Does it -matter- if he uses a preamp on FM, SSB, or freaking two cans
and a string?
Absolutely not. It has just been my mantra the past four years advising folks
that you do not need 100 Watts of TX power, expensive Yagis on the roof, and a
rotator under computer control to get into
The snowfall we received in southern Colorado last night wasn't as bad as what
was predicted; we had about 4 inches overall instead of 10.
Assuming southeastern New Mexico is in good snow shape tomorrow, we should be
able to get to the DM84 / DM85 line for the AO27 pass which rises at
At 05:13 PM 2/8/2010, Clint Bradford wrote:
I read that article, and when I got to the last of it and he
mentioned that he was using a pre-amp for working the FM birds, I
wondered out loud: Why???
We're working '27, '50, and '51 with HTs and meager antenna
improvements. Better yet, build a
26 matches
Mail list logo
