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

Astronomy observatory in Staffordshire, England.

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

Astronomy observatory in Staffordshire, England.

  • Live feeds at Lichfield Radio Observatory (LRO)
  • Calculators
  • Telescopes & Associated Equipment at Lichfield Radio Observatory
  • History and description of Lichfield Radio Observatory (LRO)
  • Publications & Presentations
  • Links to other observers’ SID monitoring sites
  • SHOOS – SARA Hydrogen-Observing Overall Survey
  • Contact me
GNU Radio Windows

GNU Radio error “missing xterm” when installed under Windows 11

Admin September 18, 2025 No Comments

Great 👍 let’s pin down what’s pulling in xterm. On Windows GNU Radio Companion (GRC), that usually comes from a block that has its “Command” field hard-coded to xterm -e…

Radio observation in hydrogen line (1420MHz)

Comparing signal attenuation at 1420 MHz in short 30cm jumper coaxial cables RG174 vs RG316

Admin September 18, 2025 No Comments

For a 30 cm jumper at 1420 MHz (H I line), RG174 and RG316 are effectively neck-and-neck—both cost you ~⅓–½ dB pre-LNA. Quick comparison (30 cm @ ~1.5 GHz) That…

GNU Radio

GNU Radio Error Message “unable to scan ip19”

Admin September 18, 2025 No Comments

That error message — “unable to scan ip19” — isn’t a standard GNU Radio error on its own. It usually comes from an underlying hardware driver or device source block…

GNU Radio

GNU Radio Error Message “unable to scan ip19”

Admin September 18, 2025 No Comments

That error message — “unable to scan ip19” — isn’t a standard GNU Radio error on its own. It usually comes from an underlying hardware driver or device source block…

GNU Radio

GNURadio Cookbook – RTL-SDR Radio Setup With GNURadio Companion

Admin September 17, 2025 No Comments

Thursday, August 8, 2024 This is a very useful website (not edited by myself) – link below: RTL-SDR Radio Setup With GNURadio Companion: GNURadio Cookbook – A collection of recipies…

GNU Radio

GNU Radio standard ways to save raw or processed data streams from an SDR

Admin September 17, 2025 No Comments

In GNU Radio you’ve got a few standard ways to save raw or processed data streams from an SDR (like your RTL-SDR or RSPduo) directly from a flowgraph or a…

RTL-SDR Blog Software-Defined Radios (SDRs)

RTL-SDR Blog V4, which uses the RTL2832U ADC and R828D tuner, has the following sampling rate characteristics according to its datasheet

Admin September 17, 2025 No Comments

The RTL-SDR Blog V4, which uses the RTL2832U ADC and R828D tuner, has the following sampling rate characteristics according to its datasheet: In practice, most users find that setting a…

Nooelec SAWBird LNAs

Schematic Nooelec SAWBird H1 Low Noise Amplifier & Filter

Admin September 16, 2025 No Comments
Nooelec SAWBird LNAs

Electrical Specs Nooelec SAWBird NOAA

Admin September 16, 2025 No Comments
Easy Radio Astronomy Software (ezRA)

ezRA_Data_Flow_LRO_16/9/2025

Admin September 16, 2025 No Comments

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Categories

  • ADVISORY NOTICE & DISCLAIMER
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  • Solar Cooker 1.5m Parabolic Dish Radio Telescope
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  • The 20 Metre Skynet Radio Dish at Green Bank Observatory
  • Uncategorized
  • USRP B210 Software-Defined Radio
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  • VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)
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Recent Posts

  • ebay/Parcel Monkey
  • Wind damage to LRO-H3
  • Online interdigital RF cavity filter designer
  • Alex Pettit’s new RFI removal regime in H-Line 3D
  • Tell me what a SID (Sudden Ionospheric Disturbance) is and what range of frequencies are covered when monitoring for SIDs.

Recent Comments

  1. Admin on Signal attenuation (loss) for common coaxial cables at around 1.42 GHz (1420 MHz), relevant for builders of amateur Hydrogen Line radio telescopes.
  2. Alex Pettit on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  3. Alex Pettit on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  4. Bill S.N. on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?
  5. Stephen Arbogast on How can a 50 ohm resistor be used to produce reference signal on a radio telescope with 50 ohm impedance?

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You missed

Uncategorized

ebay/Parcel Monkey

Uncategorized

Wind damage to LRO-H3

Uncategorized

Online interdigital RF cavity filter designer

Uncategorized

Alex Pettit’s new RFI removal regime in H-Line 3D

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

Astronomy observatory in Staffordshire, England.

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