r/radioastronomy

"Futuristic" designs of alt-azimuth mounts?

We are working on a space themed game called /r/SineFine about slower than light space exploration.

We want to design some in-game models of radio telescopes, satellites, etc. For "lore" reasons the designs are "created" by an "artificial consciousness". Some examples of what the style might be are modern aerospace parts done by companies like Leap 71 or parametric design in architecture.

My core expertise unfortunately does not focus on radio astronomy (but I do have a conventional SCT at home), so I was wondering if there are any new or proposed designs for future radio telescope (cancelled or just at the concept stage) that might showcase some different designs in term of the mount.

For "interesting" I mean mechanical parts that have very distinctive and almost aesthetic qualities, that distinguish them from more utilitarian "nasapunk" designs. An example might be spherical or hyperboloid gears.

In terms of Radio Telescopes, I was looking at the proposed Lunar Crater RT, which could be a good example. Is there anything planned with a more classic (?) alt-az mount but showing a more modern or "futuristic" design? The idea is that these RT would be built far out in the solar system, to search for habitable planets. Ideally on one of Jupiter or Saturn's moons.

Also, can somebody explain whether the LCRT is static (i.e. does it always "see" the same region of sky?) or if it can still be oriented? From reading the wiki page it seems the advantage consist in that it would be easier to construct.

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u/-TheWander3r — 1 day ago

1.5 meters dish

Built a new dish with DL4MEA feed for 1420 MHz. This radio telescope will be used for sky mapping, using only the earth spinning and daily azel correction

u/systemdev_ — 2 days ago
▲ 80 r/radioastronomy+1 crossposts

A little Doppler effect visual I put together

There's a lot of visualizations of the Doppler effect out there, but in my opinion, none of them encompass the full picture for radio astronomy. This one includes what the telescope actually sees to help make the connection between the shifted peak on the spectrum and the relative velocity, instead of stopping the explanation at increased frequency.

u/Upset_Ant2834 — 4 days ago

Which SDR should I buy?

Hi everyone

I wanted to buy an RTL-SDR V4 to build a 1420 MHz radio telescope, but it's out of stock

I want to use Nooelec Sawbird+ H1 as the LNA. I have to power it using Bias-T or a micro USB cable and a powerbank. If the micro USB doesn't cause noise/RFI, I want to buy an NESDR which doesn't have a Bias-T feature. If micro USB causes noise/RFI, probably I should buy RTL-SDR V3, because it has Bias-T

I'm not sure which option and SDR is better, I'd really appreciate your help

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u/Impossible-Stage-283 — 6 days ago

Help needed

I want to join the hobby but don’t know how to get started. I have access to a 90cm satellite dish with a LNB but heard I might need a LNA. What parts do I need besides the dish? Are there some good tutorials or websites?

Thanks

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u/Majestic_Feed2389 — 7 days ago
▲ 3.2k r/radioastronomy+2 crossposts

Web interface demo

Quick progress update on the proof of concept for online observations. I've got the telescope movable, but I'm waiting on a new sdr to get here from china before I can work on the actual telescope part of the telescope. The rtl-sdr I was using before was the casualty of a rogue 12v wire taking out my pi 5 :( barely had it a year so now it's running on a 3B

u/Upset_Ant2834 — 12 days ago
▲ 132 r/radioastronomy+3 crossposts

2 computers, the 4.5m dish, Dish controller, LNA, gain lock and SDR do most of the work, providing shared drift scan csv files in the Livestream chat Link

u/DeepSpace1420MHZ — 15 days ago

Beginner Undergrad

Hi friends,

Weird bird here. I’m doing an 8 week RA project, and hoping to contribute something significant enough to be capstone worthy.

Our teams is doing collections on a few specific frequencies, and I’m just writing to see what’s out there.

Any ideas about a capstone that you would do if you were a beginner?

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u/Popular-Mastodon3498 — 11 days ago
▲ 62 r/radioastronomy+2 crossposts

Hydrogen Line Radio Terrain

This image created with Python with csv recorded drift scans 5/1 - 5/8/26, from Spectraview, “Hydrogen Line Radio Terrain," represents the results of drift scans performed using a radio telescope. The plot visualizes the detection of the Neutral Hydrogen Line at 1420 MHz as the Earth's rotation allows the telescope's fixed beam to sweep across a portion of the sky.
Breakdown of the Visualization
Vertical Axis (Z): This shows the Relative Hydrogen Signal (dB), indicating the intensity of the hydrogen emissions detected during the scan.
Horizontal Axis (X): Labeled as Drift Time, representing the duration over which the data was collected as the celestial objects passed through the telescope's field of view.
Depth Axis (Y): Labeled as Azimuth, which corresponds to the specific horizontal direction (between 75.00 and 77.00 in this view) the dish was pointed toward during the observation.
Color Scale: The "terrain" uses a heatmap where brighter yellow peaks represent the strongest signal intensities (reaching above 0.7 dB), while darker purple and black areas represent lower signal levels.
Technical Context
This specific data was generated using a 4.5-meter mesh dish. The prominent "mountain" in the terrain map illustrates the concentration of neutral hydrogen, from a section of the Galactic Plane (Milky Way), passing through the antenna's 34 dB gain beam. This type of 24/7 monitoring and data mapping is used to visualize the structure and density of our galaxy.

u/DeepSpace1420MHZ — 14 days ago