Satdump software & wxsat reception

hairybadger

hairybadger

Bricoleur
Joined
Jul 20, 2012
Messages
1,408
Reaction score
781
Points
113
Location
46.1N 6.4E
My Satellite Setup
see sig
My Location
near Geneva, Haute-Savoie, France
Analoguesat said:
Ah I think I see the source of your confusion. The maps arent transmitted by the satellite. They are underlays generated by the software. Effectively the data transmitted from NOAA is the cloud detail. The "weather maps" we like so much are composite images built up from NOAA & the software.

Have you updates the tles? In SETTINGS - GENERAL SAT DUMP - UPDATE TLE NOW
Click to expand...
Ah! Thanks, that clears that up. Yes, the TLE are up-to-date. I think my antennae suck.
 
Analoguesat

Analoguesat

Administrator
Staff member
Joined
Jul 26, 2003
Messages
50,905
Reaction score
11,334
Points
113
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Sky+ UK.
My Location
Scottish Borders
Have you set the correct satelite in the TRACKING CONFIGURATION because something is screwy somewhere. Even with no signal you should get the correct map location being generated.

1717233860914.png
 
pontiend

pontiend

Contibruter
Joined
Dec 12, 2007
Messages
3,045
Reaction score
3,528
Points
113
Age
81
Location
South Yorkshire
My Satellite Setup
See Signature
My Location
south yorkshire
This looks like a good one M2-4 14.12 UTC I think . EL 89.25.straight over the top for me.
Meteor 2-4.JPG
 
Analoguesat

Analoguesat

Administrator
Staff member
Joined
Jul 26, 2003
Messages
50,905
Reaction score
11,334
Points
113
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Sky+ UK.
My Location
Scottish Borders
Ah excellent - 87 degree pass for me. :)
 
Analoguesat

Analoguesat

Administrator
Staff member
Joined
Jul 26, 2003
Messages
50,905
Reaction score
11,334
Points
113
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Sky+ UK.
My Location
Scottish Borders
hairybadger said:
Yes, I've done that. Complicated all this :D
Click to expand...
Its complicated to begin with & if I had designed the s/w Id have done some things differently as it seems illogical to have to so manny different settings sections. However once you start get to images it becomes second nature to go to the different sections when you start it up
 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
For those looking at them, here is a great pass this afternoon on Meteor M2-4, this is what it should look like when it's being decoded.

Meteor M2-4 good pass 6-1.jpg

As you can see there are 4 distinct modulations in the OQPSK decoder window, and a good sync in the deframer.

This pass was almost right over head.
 
C

cirio70

Member
Joined
Mar 13, 2022
Messages
148
Reaction score
268
Points
63
Age
53
My Satellite Setup
Laminas 180 - Fracarro UX-TW-LTE(PLL) - C Band - TBS6903 - TBS5922H - Octagon SF 8008
My Location
Lombardy - Italy
M2-3 and NOAA-19 practically on the same path just a few minutes away:

msu_mr_rgb_221_corrected.jpgavhrr_3_APT_channel_A.png
 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
Anyone have the program crash over night? Mine has several times. this past week.
 
Analoguesat

Analoguesat

Administrator
Staff member
Joined
Jul 26, 2003
Messages
50,905
Reaction score
11,334
Points
113
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Sky+ UK.
My Location
Scottish Borders
Mines ben running for 4 days absolutely no problem
 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
Everything looks good for the last few days, so I wounder what was going on??

On another note, I have observed the satellites at night when they pass over, (some are hard to see but I have zero light intrusion) I find that the missing data (the dead bands on the image) may be due to when the satellite and the antenna are at the same horizontal plane.

Now the antenna I'm using is a home brew and it's receiving elements are in the horizontal plane, I'm wondering if I should tip (bend) them down about 20 to 30 degrees, this may make the dead bands go away when the satellites are at a lower azimuth and crossing over from below the antenna elements to the top side.

It may be worth a try, but it's going to be wayyyy to hot today, it's supposed to be over 40 degrees C today, so I'm staying in.
 
A

ArloG

Member
Joined
May 18, 2023
Messages
24
Reaction score
17
Points
3
Age
54
My Satellite Setup
12' Fiberglass Dish, C2W & Geosat Pro lnbf, Titanium ASC-1, Osmio4k, Zgemma H7 Client
My Location
N. Central PA, USA
So T. What kind of home brew?
Here's a link that might help with the what-if's.

Center-fed Horizontal V-dipole

Discussion about Horizontal, Center-fed, V-dipoles. Gain, impedance, SWR, changes in characteristics with changes in angle of bend.
www.qsl.net
 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
Look at the one in post #218 by Cirio70, I fabricated it and it seams to work better then my Discone. I just wounder if it should have some beam tilt to the radials.
 
ozumo

ozumo

te wo tsuite
Staff member
Joined
May 26, 2020
Messages
5,221
Reaction score
2,616
Points
113
My Satellite Setup
Raven mk2 zone 2 x4, Channel Master: 90cm x3, 1.2m x2, 1.8m PF. CM polar mount x2, Az/El x3.
My Location
South Durham
Terryl said:
Look at the one in post #218 by Cirio70, I fabricated it and it seams to work better then my Discone. I just wounder if it should have some beam tilt to the radials.
Click to expand...
Have a look at this design by sgcderek, it mentions how changing the angle of the upper elements affects reception.

 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
A very good pass today on M2-3, this on channel 321, you can see the snow pack better in false color, I guess it's all in the angle of approach to my antenna.

Meteor M2-3 pass 6-6d.jpg
 
Terryl

Terryl

Specialist Contributor
Joined
Apr 14, 2011
Messages
3,387
Reaction score
1,980
Points
113
Age
82
My Satellite Setup
OpenBox X5 on a 1 meter motorized dish.
And now a 10 foot "C" band dish.

Custom built PC
My Location
Deep in the Boonies in the central Sierra Nevada mountains of California.
And it's still wayyyy too warm to do anything to the antenna, over 105 F today. (40.5 C)
 
Chr0nik

Chr0nik

Member
Joined
Dec 2, 2005
Messages
214
Reaction score
54
Points
28
My Satellite Setup
TM-9100 Linux receiver / Edision OS mini 4K / TM-2600 M3 motor / 110cm dish (34.5w to 50e) - 100cm dish (51.5e/52e/53e/60e)
My Location
Grays, Essex
Excellent thread! I'm also into catching sat weather images but unfortunately I'm having a lot of issues with QRM so the images I catch from the NOAA sats are not the best quality - most of the noice comes from the TV and other equipment around the house. I currently have a home made V dipole with reflectors but I'm planning to use the CM 1.2 dish to catch the other types of NOAA transmissions.
 
Top