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Astronomy observatory in Staffordshire, England.

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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

Pyramidal Horn Calculator with examples for 1420 MHz hydrogen-line pyramidal horn build.

December 9, 2025 Admin

Pyramidal Horn Calculator

This calculator calculates the optimal dimensions of a Pyramidal Horn.

Click on link below to see examples of calculation for hydrogen line radio observing (1420 MHz):

https://www.astronomy.me.uk/wp-content/uploads/2025/12/Pyramidal-Horn-Calculator-with-examples-091225.pdf

Designing and building a 1-metre-aperture horn antenna for 1420.405 MHz suitable for hydrogen-line work.
Chokes for hydrogen line cantenna feeds

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Chokes for hydrogen line cantenna feeds
Pyramidal Horn Calculator with examples for 1420 MHz hydrogen-line pyramidal horn build.
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