This design is called a coudé telescope (often written coudé focus). In a coudé system, mirrors redirect the light down the mount or pier so

The HMC849 is a high isolation, non-reflective DC to 6 GHz SPDT (Single-Pole, Double-Throw) RF switch available in a 16-pin,

This was a wonderful meeting, with membership of the group increasing in every meeting!

(C) Andrew Thornett 5/1/2026 All rights reserved.

A cantenna, essentially a form of circular waveguide, is a practical tool used in radio astronomy to detect the hydrogen

This was a test inside house so hydrogen signal not detected.

Datasheet can be downloaded from link below – this was accessed 4/1/2026: https://www.astronomy.me.uk/wp-content/uploads/2026/01/Nooelec_Sawbird_H1_Barebones_Datasheet_Revision_1040126.pdf

These mesh dishes are certainly fine for the Hydrogen line and are probably good up to about 3 or 5

A cantenna, essentially a form of circular waveguide, is a practical tool used in radio astronomy to detect the hydrogen