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NOAA WEATHER SATELLITE IMAGES

TABLE OF CONTENTS

LOG

images gathered with an rtlsdr usb stick, garbage antennas, good antennas, and wxtoimg

under construction, if anyone knows more about the auto wxtoimg web maker, or a tool that would do the same thing, please get at me aspaceman@gmail.com

2020 09 23

2020 09 22

four passes in one day caught, during a hurricane

2020 05 29

adjusted the yagi a little more south

results weren't much better

the satellite was directly overhead, feel like i wasted a good pass



noaa-15 was heading my way 20 minutes after i tried the yagi again

didn't want to move the yagi so i finally built this simple antenna






didn't have enough time to make a stand so i ran up on the roof with laptop

using WXTRACK, knowing where north is, and the beeps froms SDR#
i tracked the satellite in the sky and maintained a pretty decent signal

i am happy my best signal was caught with an antenna made of junk in 5 minutes

also just found the sea surface temperature option in wxtoimg, i like it a lot

2020 05 16

set up a yagi on my apartment's empty flagpole

yagi is a directional type antenna and needs be oriented with the source
satellites are moving targets so tracking would be needed

turns out yagis work at 90 degrees as well as the signal was best overhead

- looking into meteor signals, can't even get the program to stay open. not much luck yet
- looking at sdr# dde tracking - i can't find any scheduler button, seems i'm missing something





2020 01 20

i had 20 minutes till noaa 18 flew over and rushed a hunk of metal onto the roof 
to see if grounding the tram 1185 would clean things up.

also was snowing, and made me cut corners. could have been closer to the center of roof

this time i used the record function built into SDR# and imported the audio to NOAA-APT

this program is a lot simpler and faster than wxtoimg, but does not seem to have the live processing

i am not sure what else to do with this program but i am impressed with how simple it is.

i might still need wxtoimg to try and get the land outline overlaid and include false colour/

anyway, was a test, will probably continue using wxtoimg for auto downloads until i understand more



this is a with "no sync" selected. 
i believe the shape of this file can tell me a bunch that the synced version can't. 
but i can't read static yet ha



2020 01 05

turns out i had set the cable to listen to itself instead of output to the speaker by mistake
now that's gone it's looking better. had a few good passes today
very windy and cloudy and night for all these, not sure how much that changes things

same equipment as before and antenna still on apartment roof






2020 01 04

picked it back up and not sure what i am forgetting

instead of trees being in the way i am in town, with antenna on the roof
flat topped building, low flat area
there's a usb extenstion cord i didn't use last time either


fail 1 - my computer's mic mute button was on, so all input was disabled


fail 2 - strange patterns?


fail 3 - still same patterns?


fail 4 - reduced sample rate from 2.4 to 1.0 MSPS , now new strange pattern?

if this is interference why am i only getting the patterns while i have a signal?

2019 05 26

pretty happy that this worked, even if it's so fuzzy
it was cloudy and i held the antenna with my hand
--radio tower is on backburner for now
--new photos when life permits
--will take notes next time and give some steps







procedure


rough outline of WXTOIMG procedure


HARDWARE:
ANTENNA TRAM 1185
ANTENNA CABLES
ADAPTOR ANT. TO MCX MALE
RTLSDR DONGLE PICK ONE OF THESE
USB EXTENSION COR
WINDOWS LAPTOP

STEPS:

DOWNLOAD AND INSTALL:

A. SDR program - SDR#

B. weather satellite image processing software - WXTOIMG

C. virtual audio cable - VB VIRTUAL AUDIO CABLE

RUN A - OUTPUT TO C

TUNE A TO SATELITTE FREQ

RUN B - INPUT FROM C

SET B TO AUTOPROCESS/RECORD AND CREATE IMAGES

OTHER SOURCES:
https://www.planetary.org/blogs/jason-davis/2015/20150921-how-to-download-weather.html

https://www.rtl-sdr.com/receiving-noaa-weather-satellite-images/

rough outline of NOAA-APT procedure


HARDWARE:
ANTENNA TRAM 1185
ANTENNA CABLES
ADAPTOR ANT. TO MCX MALE
RTLSDR DONGLE PICK ONE OF THESE
USB EXTENSION COR
WINDOWS LAPTOP

STEPS:

DOWNLOAD AND INSTALL:

A. SDR program - SDR#

B. weather satellite image processing software - NOAA-APT

RUN A - TUNE TO SATELITTE FREQ (WHEN SATELLITE OVERHEAD)

RECORD WAV AUDIO OF SIGNAL USING SDR#

RUN B - PROCESS WAV FILE

OTHER SOURCES:
https://noaa-apt.mbernardi.com.ar/