NanoVNA

Attending & talking at conferences, workshops & societies NanoVNA Radio observation in hydrogen line (1420MHz)

NanoVNA Mini-far-field antenna range from EuCARA Sept 2025

Admin January 13, 2026 No Comments

In September 2025, Jason Burnfield & myself delivered a workshop on creating and using a mini-far-field antenna testing range at home using a NanoVNA. Materials describing how this is done…

NanoVNA Radio observation in hydrogen line (1420MHz) Waveguides

Designing & Constructing a Cantenna (Circular Waveguide Antenna / Tuned Cylindrical Waveguide) for hydrogen line radio astronomy (1420 MHz)

Admin December 25, 2025 No Comments

Here is what you need to build your own Cantenna: Doing the math:Use an online calculator, such as the one at https://www.jefatech.com/products/cnfbst?keyword=cantenna, or https://www.changpuak.ch/electronics/cantenna.php, https://www.wikarekare.org/Antenna/WaveguideCan.html to check can size and…

NanoVNA Radio observation in hydrogen line (1420MHz) Waveguides

Block diagram, parts list and checklist for using coaxial cable to waveguide adapter for hydrogen line radio astronomy

Admin December 7, 2025 No Comments

Here’s a ready-to-use block diagram plus a practical minimal parts list and quick build/test checklist so you can turn your WR-650 waveguide-to-coax adapter into a full waveguide feed for 1420…

NanoVNA

How to use 2 orthogonal monopoles with phasing cable on cantenna waveguide to improve signal reception

Admin October 12, 2025 No Comments

Two monopoles at 90 degrees in cantenna One connects to splitter immediately Two connects via coax either 1/4 wavelength or 5/4 wavelength (more practical length = 26.5cm x 66% (velocity…

NanoVNA Radio observation in hydrogen line (1420MHz)

Adding 2nd monopole onto cantenna to improve signal reception

Admin September 7, 2025 No Comments

Two monopoles at 90 degrees in cantenna One connects to splitter immediately Two connects via coax either 1/4 wavelength or 5/4 wavelength (more practical length = 26.5cm x 66% (velocity…

NanoVNA

Introduction to using NanoVNA

Admin July 7, 2025 No Comments

Original Powerpoint file by myself downloadable from link below. https://www.astronomy.me.uk/wp-content/uploads/2025/07/NanoVNA_Hydrogen_Line_Basics.pptx

NanoVNA Testing radio astronomy equipment

NanoVNA vs TinySA

Admin June 17, 2025 No Comments

The TinySA and NanoVNA are both compact, affordable test instruments used in radio frequency (RF) and electronics work, but they serve different primary purposes: 🔍 TinySA (Tiny Spectrum Analyzer) Purpose:A…

Attending & talking at conferences, workshops & societies NanoVNA

Components I have made for Mini-Antenna Testing Range for EUCARA conference September 2025

Admin May 18, 2025 No Comments

I am running a NanoVNA workshop at EUCARA 2025 at Harwell Campus and as part of this I am going to demonstrate a mini-antenna testing range = I have been…

Attending & talking at conferences, workshops & societies NanoVNA Radio observation in hydrogen line (1420MHz)

Making a 2nd cantenna for the antenna testing range in the NanoVNA workshop at EUCARA 2025

Admin May 17, 2025 No Comments

In September 2025, EUCARA is being held at Harwell Campus in UK. I am giving a talk and also running an introductory workshop on using NanoVNAs to test antennae/aerials. As…

NanoVNA Radio observation in hydrogen line (1420MHz)

A simple way to test an antenna with a NanoVNA

Admin May 14, 2025 No Comments

A simple way to test an antenna with a NanoVNA involves connecting the antenna to the NanoVNA, calibrating the device using open, short, and load standards, and then measuring the…

NanoVNA Mini-far-field antenna range from EuCARA Sept 2025

Designing & Constructing a Cantenna (Circular Waveguide Antenna / Tuned Cylindrical Waveguide) for hydrogen line radio astronomy (1420 MHz)

Block diagram, parts list and checklist for using coaxial cable to waveguide adapter for hydrogen line radio astronomy

How to use 2 orthogonal monopoles with phasing cable on cantenna waveguide to improve signal reception

Adding 2nd monopole onto cantenna to improve signal reception

Introduction to using NanoVNA

NanoVNA vs TinySA

Components I have made for Mini-Antenna Testing Range for EUCARA conference September 2025

Making a 2nd cantenna for the antenna testing range in the NanoVNA workshop at EUCARA 2025

A simple way to test an antenna with a NanoVNA

You missed

Testing the two 5650A rubidium time sources I have purchased from AliExpress by comparing them to Leo Bodnar GPSDO on 9 October 2026, with the two 5650A devices attached to a large aluminium heat sink.

Independently Testing each of the two KrakenRF Discovery Dishes & Discovery Hydrogen Line feeds at LRO used for interferometry 6-9 October 2026

Digital inclinometers for radio astronomy dishes

Can muons be focused?