On this page there are links to some talks I have given to my local radio club and other events.

Lothians Radio Society - The history and development of RF connectors.

Lothians Radio Society - Noise Figure Measurement Using Natural Noise Sources.

Lothians Radio Society - The N2PK VNA.

Lothians Radio Society - Switch Mode Power Supplies and how to recycle them.

Lothians Radio Society - The HP8753C VNA

Lothians Radio Society - 3 cm Personal Beacons

Lothians Radio Society - Frequency (and Time) Standards

Lothians Radio Society - Chinese Microwave Synthesiser PCBs Using ADF4351 and the ADF5355

Lothians Radio Society - Personal Beacons, Arduinos and Raspberry Pi's

Lothians Radio Society - Remote Station Operation

Lothians Radio Society - NanoVNAs - Part 1: Background and Theory

Lothians Radio Society - NanoVNAs - Part 2: Operation and Practice plus audio recording

Lothians Radio Society - Understanding Baluns

I have been the beacon-keeper for the Edinburgh 23cm beacon on 1296.990 MHz since its inception in 1978. I recently built some more up to date hardware. Here are the slides I prepared for a talk I did about the beacon and its history at the GM Microwave Roundtable in 2013 GB3EDN.

GM Microwave Roundtable 2014 Personal Beacons.