Lightwork Memo Series

The LightWork Memo series is an informal series of numbered memoranda on topics related to Citizen Science with Radio Telescopes.

This series is intended to encourage the public in the United States, and throughout the world, to collaborate on the design, construction and operation of Radio Telescopes for the purpose of furthering science, engineering and education. LightWork memos series guidelines are described in Memo 0, below. The creation of a memo series is motivated by the success that a focused memo series can have on organizing design and construction of large astronomical facilities.

The memo series title has two implications. The first is that this memo series concerns Work with radio wavelength Light. The second is that we envision that those developing the radio telescopes will grow a large collaboration, making a significant contribution to the worlds understanding of the universe. Many hands make LightWork.

0. LightWork Memo 000 Memo inviting contributions, and providing guidelines, to the LightWork Memo Series
   • Glen Langston, 2017 August 11, Status: Active
   • Initial memo in the series inviting others to contribute to the topic of Citizen Science with Radio Telescopes
1. LightWork Memo 001 First System temperature Measurements with a horn antenna.
2. LightWork Memo 002 Report on system temperature after a number of modifications.
3. LightWork Memo 003 Measurements of system gain as a function of feed probe placement.
4. LightWork Memo 004 Full system description of first working horn antenna.
6. LightWork Memo 006 Sketch of amplifier board design for Citizen Science Radio Telescopes
8. LightWork Memo 008 Measurements of performance of amplifier system using low cost LNA4ALL amplifiers.
9. LightWork Memo 009 Measurements of performance of amplifier system using ZX60-P103LN+ amplifiers
10. LightWork Memo 010 Measurements with aluminum foam board horn and improved infrastructure
14. LightWork Memo 014 Galactic Mapping with Horn and Amplifier box
15. LightWork Memo 015 Science Aficionados Amplifier Box B
16. LightWork Memo 016 Commercial Parts list for Amplifier Box B
18. LightWork Memo 018 Galactic Spectra Data Overview
19. LightWork Memo 019 Mapping the Milky Way
20. LightWork Memo 020 Radio Astronomy With Gnuradio-Companion
21. LightWork Memo 021 Horn Telescope Base Construction Guide
22. LightWork Memo 022 Horn Telescope Construction Guide
23. LightWork Memo 023 Event Capture with ADALM Pluto - under construction
24. LightWork Memo 024 Milky Way Galaxy Armed and Dangerous - under construction
25. LightWork Memo 025 Sensitivy of Horn Radio Telescopes for Detecting Pulsars.
26. LightWork Memo 026 Calibration and Imaging Steps - under construction
27. LightWork Memo 027 Event Detection with 4 Horns - under construction
28. LightWork Memo 028 Measure Noise Temperature of First LNA
29. LightWork Memo 029 Overview of Construction and Use of Radio Telescope 👏
30. LightWork Memo 030 A Tale of Three DSPIRA LNAs. Successful construction and analysis of three very high sensitivity versions of the WVURAIL LNAs for Radio Astronomy👏
31. LightWork Memo 031 Additive Interferometry with 2 Horn Telescopes
32. LightWork memo 032 Gather a Pail of Milky Way. Construction guide for a very small, very sensitive horn radio telescope.
33. LightWork memo 033 Under construction
34. LightWork memo 034 Guide to Building a Horn Telescope Base. Construction guide for easily pointing a horn radio telescope.
35. LightWork memo 035 Guide to Building a Cone Horn Telescope. Construction guide for an even simpler and more sensitive Radio Telescope.
36. LightWork memo 036 Updated Telescope base, construction simpler and work with Cone Horn.
37. LightWork memo 037 Technique for finding pointing offsets based on 24 hours of observations. Note that some larger PDFs must be downloaded for viewing. Github is not immediately displaying all files.

Lightwork Videos Series

We've added a few videos that illustrate parts of the memos.

1. [Intro][https://www.youtube.com/watch?v=4g7KqXHw6wc]
2. [Telescope Calibrated][https://www.youtube.com/watch?v=qXBN_0yWl-o&t=13s]
3. [Gnu Radio First Steps][https://www.youtube.com/watch?v=UmjVbE0Jj0M]
4. [Green Bank Observatory 2024 Summer Students build a horn Radio Telescope][ https://youtube.com/playlist?list=PLFMYhHhJW1VDIm3JLKJYwAia_89thyLB9&si=0gA808pXB9bRU9rw]

Elevation axis templates and important notes

The notes directory contains some hints for Raspberry Pi computers and a template for building your horn telescope elevation axis.