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astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
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  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
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  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
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  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey

astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • Live Radio meteor observations and meteor counts
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey
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October 30, 2025 Admin

Compare the performance of 80cm, 90cm, 100cm, 110cm, 110cm, 140cm, 150cm, 180cm, 240cm, 300cm, 500cm, 1000cm dishes for 1420MHz amateur radioastronomy

The attachments mentioned in the discussion below are available in following downloadable ZIP archive: https://www.astronomy.me.uk/wp-content/uploads/2025/10/Comparing-dish-sizes-performance-H-Line-311025.zip Here’s a practical comparison for

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October 30, 2025 Admin

Compare the Intel Core i7‑1065G7 microprocessor with the first-generation desktop/server era Intel Core i7‑930 for amateur radio astronomy applications

If you compare the Intel Core i7‑1065G7 with the first-generation desktop/server era Intel Core i7‑930 (or broadly the 1st-gen “Nehalem” i7s) you’ll find major architectural, process, power-efficiency and

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October 29, 2025 Admin

Mini‑Circuits ANNE‑50L+ 50 ohm 1W SMA coaxial terminator

The Mini‑Circuits ANNE‑50L+ is a very good choice for many purposes—let’s evaluate it specifically for your radio astronomy calibration use case (receive-only, around ~1.42 GHz).

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October 29, 2025 Admin

Not all 50 Ω dummy loads are the same when used for calibration in radio astronomy

Excellent and subtle question — and one that’s very relevant for radio astronomy calibration.Short answer: not all 50 Ω dummy loads

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October 29, 2025 Admin

Mercury Systems MVS +5/-5V 2S3020-95 SC00126-01 RF Pin Diode SPDT Switch

The item described as “MVS +5/-5V 2S3020-95 SC00126-01 RF Pin Diode SPDT Switch” appears to be a PIN-diode based single-pole double-throw (SPDT) RF

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Uncategorized
October 29, 2025 Admin

Specifications of 12V Tohtsu mechanical coaxial relay switches CX-520 and CX-600NL

https://www.astronomy.me.uk/wp-content/uploads/2025/10/DS_CX_600NL-12V.pdf

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Uncategorized
October 29, 2025 Admin

Comparing Tohsu mechanical coaxial relay switches for use at 1420 MHz

Good choice — here’s a detailed comparison between the three models you’re considering: Tohtsu CX‑520D, Tohtsu CX‑600N, and Tohtsu CX‑600NL — with a focus on performance

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October 28, 2025 Admin

The “ls” command in Linux Ubuntu

In Ubuntu (and most Unix-like systems), the ls command is used to list the contents of a directory. When you type:

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October 27, 2025 Admin

How to clone a drive using Ubuntu’s own built-in tools (no extra software)

If you want to clone a drive using Ubuntu’s own built-in tools (no extra software), the most reliable options are: 🧰 1.

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October 27, 2025 Admin

How to install sdrutil in Linux Ubuntu

The term “SDRUtil” can refer to a few different tools depending on context (some are tied to SDRplay, others are

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  1. Alex Pettit on Compare the performance of 80cm, 90cm, 100cm, 110cm, 110cm, 140cm, 150cm, 180cm, 240cm, 300cm, 500cm, 1000cm dishes for 1420MHz amateur radioastronomy
  2. Admin on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
  3. Alex Pettit on What are best specifications for cavity filters for 1420 MHz Hydrogen Line work?
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