PREP Building a weather satellite earth station

Hfcomms

EN66iq
Really could of put this under tech but it also has a direct implication for prepping and considering perhaps our near to mid term future it can definitely be a prep item. Like most of us on TB2K we are information junkies and in the future information you can trust is going to be hard to come by especially if there is a grid down or Internet down scenario in our future.

The National Weather Service (NOAA) maintains a small fleet of weather satellites covering the US and territories and these are totally unencrypted and for less than $500 you can set up your own earthstation to download near real time images, graphics and emergency managers information using a Raspberrypi single board (cheap) computer and peripherals.

I will give some links for information and photos of my setup. In addition it is possible to run this totally without commercial power or Internet and even in a worst case scenario you can get up to date weather information along with EAS type messages that are going to work even if your local weather radio is offline.

The equipment required is a 2Ghz wifi dish, a LNA for the dish (low noise amplifier), a RTL-SDR dongle (Software Defined Radio) and a Raspberrypi single board computer running Linux setup for a headless environment meaning the little computer board stands alone and doesn't need to be hooked up to a keyboard or monitor once set up.

An additional piece of software (vitality-goes) can be set up on the Raspberrypi (also works on windows machines) to allow any of your wireless devices such as a tablet, notebook or even a phone to pull up the information and all the data/pictures off of your home network system.

dish.jpg


This is the wifi dish and the white box has the LNA inside it. Nooelect sells a complete setup on Amazon which is where I got it. It includes the dish/antenna, the LNA, the RTL-SDR dongle and 10 meters of appropriate coax.


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On the inside the coax is going from the wall to the RTL-SDR dongle which is plugged into the Raspberry pi. The ethernet cable is going to the home network switch (can use wifi) and the little box on the right converts DC power from the solar system or even a 12v battery to the 5 volts that the Raspberrypi uses to be able to power it regardless of commercial power. Here is the Raspberry setup that I bought;




OK, so what can you see with it?

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The system is constantly downloading images directly from the satellite along with the EMWIN (emergency mangers weather information network) which handles all of your watches, warnings, emergency alert system info etc. There can be 30K text messages a day in that data stream. With the software setup (vitality-goes) on your raspberrypi you can set your location and the software will query the stream and just present the text data that interests you. Like in the picture directly above this you can see space weather alerts and on all the pages if you click on the arrows it opens up to the picture or graphic product you want to see.

If you are pointed at the east satellite it also includes pictures from the west satellite and vice versa along with relays from other weather satellites around the world.

In an emergency or just for day to day use you can have this near real time information at your fingertips and as I indicated before it can be set up to totally run off of battery power in case your commercial power goes down. A number of links below addressing this and how to set it all up.




View: https://www.youtube.com/watch?v=z5QSF7DCoV0

RT 22 min

View: https://www.youtube.com/watch?v=o5ISR0bBFo0

RT 2 min

View: https://www.youtube.com/watch?v=XMDAiUjzkhw

RT 10 minutes
 

SmithJ

Veteran Member
I use a RTL-SDR dongle and rabbit ears to scan the local police and fire. The digital, unencrypted channels.
 

Hfcomms

EN66iq
It isn’t as hard as it might look. I followed the tutorials and there are people on reddit on some of the sigs that will help you along.
 

Lone_Hawk

Resident Spook
My SDR gets in tomorrow, one of the things that I am going to do is see if my DC will pull in sat signals.
 

Tristan

Has No Life - Lives on TB
Excellent post!

Would a repurposed dish network antenna work for the receiver?

Have most everything else in hand...

Any recommended LNA's?
 

Hfcomms

EN66iq
Look at the tutorials. It is possible to reuse another dish but you would have to ditch the lnbf that comes with the Dish network or Directv dish. Two different animals as the GOES satellites downlink at 1691 Mhz whereas the satellite TV networks are up in the Ku band 11700 Mhz to 12500 Mhz or therebouts. One could homebrew something that could work and that is what amateur radio is all about but for me it was just easier to buy the whole package designed for this.

The right LNA is this one: https://www.amazon.com/Nooelec-SAWbird-GOES-Ultra-Low-Applications/dp/B07K1M39H4/ref=sr_1_4?crid=11VA4QFSBP4M8&dib=eyJ2IjoiMSJ9.9CByU9HLKa_HgislYP96AE4GNOiykbXA8d43-mP72AMAR0qeVDvzw1AUhqsyCdxvkuV6ITvC0Af2uvfAE_HUQV7nntijEvIxhP2vDFiyFL849iKqJT20aaIpffxCGZwbyolGbKmOWkEVUYyy6NFAranf5f3XGmDw_MhFqK7MxJpQ94YeHzvWC__7pzuO_wSceeSYo1bBDsqdhmJTCsDx1Ue8eSDEarn93v1buztwQgs.GnnSjdiNom6vX1yT-g-Sl-LkP802v2s5yBpVHjtSfpo&dib_tag=se&keywords=nooelec+lna&qid=1711229230&sprefix=lna+noo,aps,200&sr=8-4

You don’t want the one for apt polar orbit satellites or the asdb one for aircraft.
 

Hfcomms

EN66iq
The NWS maintains two separate Network Operation Centers for these satellites and as it is designated as critical infrastructure because they disseminate the emergency alert system messages they will keep these satellites going no matter what.
 

dunebuggy

Contributing Member
Outstanding! Thank you for all the links, too. I've been wanting to get into this. I recently read the book "Explore Software Defined Radio: Use SDR to Receive Satellite Images and Space Signals". It's from Pragmatic Books. It's a 100 page book, and 1 chapter was about getting these weather images from the satellites.

It really wasn't enough info to get going, but everything you have here helps a ton. I'm going to order some of this stuff in the next week. Thanks again.
 

Sportsman

Veteran Member
Thank you. Are you still getting benefit from the FTA system you installed a few years ago? I bought the equipment, but moved before I could get it mounted. That's a project for this fall.
 

Hfcomms

EN66iq
Absolutely as that is all I use. Listening to the PBS classical music channel on C-band on the 99W satellite right now as I’m on the iPad. I used to have the DirecTv dish on the mount the wifi dish is using. With a motorized 10’ C-band dish along with the 4’ motorized Ku band dish I can cover many different satellites with their available content. A lot is encrypted of course but a lot is free as well. A lot of people into the hobby watch Alex Jones with infowars on TV on Ku band on the 99W satellite as well. Alex isn’t my cup of tea but he is there.
 

kyrsyan

Has No Life - Lives on TB
Somewhat in this range of ideas, is there a weather station, purchased or build able, that will actually record and let you keep records of the weather data that you can download? I can find that data for major cities but I would like to collect it for where I live.
 

Hfcomms

EN66iq
There are a mix of home weather stations from expensive to pretty cheap. I have a Davis unit that I use to run my weather website and that is more top of the line. For an inexpensive unit that still does a pretty good job the AcuRite stations are hard to beat.

 

kyrsyan

Has No Life - Lives on TB
There are a mix of home weather stations from expensive to pretty cheap. I have a Davis unit that I use to run my weather website and that is more top of the line. For an inexpensive unit that still does a pretty good job the AcuRite stations are hard to beat.

Thank you. I almost thought that would be a fail until I saw the wifi connection info. I will dig into that. I am honestly just not good at daily tracking myself but I know it would be very useful. Especially since we seem to be in a natural microclimate create by the terrain.
 
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