GPS Locator for Amateur Radio Stations

A GPS locator for use within amateur radio stations based on an original concept by Olli Dröse (DH8BQA) and adapted

Measuring ESR

An article produced by Alan Wilcox regarding measuring equivalent series resistance.

Access a presentation discussing Equivalent Series Resistance here.

A Power Amplifier for the 4m (70 MHz) band.

A presentation by Nick (G4KQK) discussing various PCB Manufacture techniques. The presentation can be accessed here.

A cheap pedestrian mobile and portable antenna designed by Graeme (G4NVH) back in February 2009. Project details can be accessed

Build notes. Parts list.