SADARS – Page 2 – Stafford and Districts Amateur Radio Society

Whole shack filter

Following on from watching a recent video on filtering RFI mains, the club has decided to arrange to bulk purchase

A presentation by Nick (G4KQK) discussing electrical isolation. The presentation can be accessed here.

Here you can access detailed construction notes of this project that was originally presented by Graeme (G4NVH) in January 2003.

Build notes. PCB layout. PCB. Populated PCB. Metal bashing.

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

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