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Radio Astronomy Resources

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12 replies to this topic

#1 SaberScorpX

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Posted 30 June 2006 - 03:44 PM

To All

Stephen has been kind enough to give some links for those interested in Radio Astronomy. Folks, check them out and thanks for the info.

Rich (RLTYS) Your friendly moderator.

Primer and FAQ:

http://www.nrao.edu/...sra/index.shtml

Related Links:

http://www.astrosurf...-radioastro.htm

http://www2.jpl.nasa...radioastronomy/

http://radiosky.com/rsplinks.html

*additions welcome*



Stephen Saber
PAC/Astronomical League
http://www.geocities...corpx/home.html

#2 Guest_**DONOTDELETE**_*

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Posted 21 January 2007 - 10:54 AM

Stephen, can you help me find people who are amature raduio astonomers who use this site? I have just joioned and am still finding my way around. I would be most gratefull.
Thanks David Morgan (radast)

#3 Paul Lannuier

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Posted 18 September 2007 - 09:28 PM

Amateur Radio Astronomy by John Fielding, ZS5JF

I haven't seen this book mentioned here (though admittedly I haven't looked back that far). It provides a modern look at radio astronomy for the amateur astronomer, much more up to date than a lot of older books I have on the subject. Fairly technical in terms of electronic design, but any radio geek with a solid background in electronics and homebrewing will benefit from it.

Paul (WW2PT)

#4 knro

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Posted 10 November 2011 - 08:03 AM

MIT Small Radio Telescope SRT contains a list of great resources on radio astronomy tutorials and excercises.

#5 chris6502

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Posted 08 February 2016 - 11:23 PM

The Society of Amateur Radio Astronomers  (http://radio-astronomy.org/) is a useful resource. They hold their annual conference where I work. 

I am no expert on radio astronomy myself but I do work with the best ones in the world so I may be able to field a question or two or pass them on to people who can answer.



#6 mich_al

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Posted 07 April 2016 - 11:18 AM

Here is an equipment supplier.  I'm not affiliated in any way except that I use one of their amplifiers.

 

http://www.radioastronomysupplies.com/

 

 

antennas amplifiers etc.



#7 aitke12

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Posted 25 September 2019 - 08:21 PM

Free to use Radio Telescope. Enjoy,

 

https://www.pictorte...ope.com/observe


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#8 levyjoelh

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Posted 30 April 2021 - 10:48 AM

Why do you think more people do not do this is the amateur community?     

 

The cost of equipment is comparable to high-end telescopes ... and you don't get clouded out!



#9 columbidae

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Posted 19 April 2023 - 09:02 PM

I suppose it goes without saying that all the links in the initial post from 2006 no longer work.  Would it be possible to get new resources pinned to the top of this thread?



#10 Gschnettler

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Posted 05 September 2023 - 01:42 PM

I would be interested in updated links too. And even a dedicated radio astronomy forum group.

I have a Direct TV dish that a neighbor discarded that I want to start using. And our Astronomy club has a large dish (around 10’) that we would like to bring into operation.

Having a forum of radio astronomy enthusiasts would be helpful and I think of interest to a lot of people.

#11 alexp

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Posted 08 September 2023 - 05:44 AM

Hello,

 

I became interested in Radio Astronomy ~ 3 years ago.

The skies in Winter Springs Fla have become so bright that even Polaris is a near 'averted vision' star..

And the technical of complexity of radio astronomy is challenging.

 

Here are a few up-to-date links ..

If, after watching the video, you have more specific questions, just Ask.

 

I have spent hundreds of hours refining my small 1.2 meter 21cm Hydrogen Line radio telescope.

For its size, it performs outstandingly well .

 

https://www.youtube....h?v=C6NCefVxNL8

 

https://www.rtl-sdr....a-and-sdrsharp/

 

There are huge residual neutral ( not combined into molecules as water, etc and not ionized ) Hydrogen Gas clouds within the Milky Way.

 Hydrogen emits visible spectra at the deep red Ha and cyan Hb optical wavelengths. It also emits a radio frequency at 21cm,

1420 MHz: the H1 Line.

 

This is due  to an extremely low energy state transition of the electron changing from a +1 to -1 spin state.

This is called the Hydrogen Spin-Flip Frequency.  It is extremely faint, but can be detected, and measured. 

 

These gas clouds swirl around within the Milky Way at velocities in the 100KM/Sec range ( relative to Earth ) and cause Doppler frequency shifts.

These frequencies can be measured and converted to velocities. 

 

The radio telescope acts like a 1 pixel camera.

The easy way to create an image is to position the radio telescope antenna at the Meridian but at a chosen Declination and

' let the sky drift by ' creating a Drift Scan.  Here are some results.

 

 

 

Regards,

Alex

Winter Springs, Fla

 

 

 

 

PRT_ for_CN_01.jpg


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#12 alexp

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Posted 08 September 2023 - 06:19 AM

FYI,  Here is an AL Reflector article

 

A PORTABLE, LOW-COST HYDROGEN 21 cm (1.42GHz ) RADIO TELESCOPE PROJECT FOR BOTH DAY AND NIGHT ASTRONOMY
 

https://www.astrolea...final-pages.pdf


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#13 alexp

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Posted 12 September 2023 - 04:13 AM

Further Reading :
https://radio-astronomy.org/
http://www.setileague.org/index.html
https://www.ccera.ca/
https://wvurail.org/...a-lessons/tour/
https://physicsopenl...cumentation.pdf
https://physicsopenl...y-way-rotation/

 

Advanced
https://craf.eu/wp-c...AFhandbook3.pdf
http://www.w1ghz.org...ok/contents.htm
https://www.microwaves101.com/
https://www.radio2sp...interferometry/
https://www.analog.c...sign-handbooks/
Software-Defined-Radio-for-Engineers-2018/SDR4Engineers_CH02.pdf
http://www2.elo.utfs...s/Lectura 7.pdf
https://eventhorizon...ope.org/science

 

Join : SARA  Society of Amateur Radio Astronomers

$ 20 / year
Provides access to all "Scope in a Box" software and website
https://groups.google.com/g/sara-list

 

Software Defined Radio SDR Sharp Studio control software
https://airspy.com/download/

 

Averaging Plug-In for SDR Sharp Software
https://www.dropbox....FzfqEGGva?dl=0 

 

Planetarium Software  Stellarium
https://stellarium.o...ium-0.21.2.html

 

Time Lapse Image Capture Software
https://www.chronolapse.com/

 

Interesting Video

https://www.youtube....h?v=HGwkZY4E64k

 

 

-Alex


Edited by alexp, 12 September 2023 - 05:05 AM.

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