Comparing image mosaic software for astrophotography
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The best image mosaic software for night sky (astrophotography) mosaics depends on your goals, budget, and level of control needed. Here’s a curated list of the most recommended options for…
Reducing noise in radio telescope systems
Reducing noise in a 1420 MHz radio telescope setup (i.e., for detecting the hydrogen line) involves addressing both internal and external sources of interference. Here are the most effective steps…
Can 3dB amplifier compensate for 3dB loss in filter at 1420MHz?
If I use a filter at 1420 MHz that causes 3 dB loss and in amplifier beforehand that gives 3dB gain, will that cancel it out? Not exactly — a…
Using long Yagi antenna tuned for 1430 MHz for 1420 MHz
A long Yagi antenna tuned for 1430 MHz can still work at 1420 MHz, but with reduced efficiency and some detuning effects. Here’s a breakdown of what you can expect:…
TV satellite frequencies in the USA
TV satellite frequencies in the USA vary depending on the satellite, provider, and whether the service is free-to-air (FTA) or encrypted. Here’s a general overview: 🛰️ Main Satellite Bands Used…
Beamwidth, Half-Power Beamwidth, Field of View
The amount of sky covered by a radio telescope is typically referred to as its field of view (FoV). Key Terms: FoV≈λD radians\text{FoV} \approx \frac{\lambda}{D} \text{ radians} where λ\lambda is…
Results LRO-H2 Mapping exercise 11/4/2025-1/6/2025 (processed 1/6/2025)
These are the results so far of my mapping exercise with the 1.5m parabolic solar cooker dish (LRO-H2): Powerpoint Presentation containing slides at bottom of this page: https://www.astronomy.me.uk/wp-content/uploads/2025/06/Results-LRO-H2-Mapping-exercise-110425-010625-010625.pptx Individual slides:
LRO-H1 Map 2 (cf Wikipedia H-Line Map July 2024 proc 260425@2200) – labelled
This version of the map has been relabelled, due to errors in the previous labelling system.
Linux Ubuntu for Radio Astronomy: Script to install radio astronomy packages in Ubuntu
https://www.astronomy.me.uk/wp-content/uploads/2025/05/astro-radio-repo.zip https://www.astronomy.me.uk/wp-content/uploads/2025/05/astro-radio-setup.zip
Night Sky Talk for RAG 30/5/2025
https://www.astronomy.me.uk/wp-content/uploads/2025/05/Night-Sky-Talk-RAG-300525-FINAL-250525@1500.pptx https://www.astronomy.me.uk/wp-content/uploads/2025/05/Night-Sky-Talk-RAG-300525-FINAL-250525@1500.pdf