Some years ago I purchased a used MFJ-1263 microphone / rig switch with a view to using it as an ongoing test bed for my Roger Beep module. Implementation The Roger Beep module was assembled with 6 way 90° single row header pins for easy connection and disconnection. The module was built, tested and adjusted … Continue reading Roger Beep fitted to MFJ-1263 microphone / rig switch
With the forced end of the VK1OD.net website, some builders of the Roger Beep kit may be without documentation. Last update: 17th June, 2014, 8:51 AM
This article describes a pulse generator for adjustment of SSB RF power amplifiers. The need Valve RF power amplifiers usually use high voltage power supplies with poor regulation, and typically the voltage may sag by 10% or more on full power CW output, whilst on SSB telephony the voltage may sag a quarter of that. … Continue reading Transmitter pulse generator for SSB RF PA adjustment