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7th February 2010

G3XBM's XBM80-2 Trivial 80 Metre CW Transceiver

I build a variant of Roger G3XBM's latest experimental transceiver, the XBM80-2.

2 comments.

4th February 2010

Quartz Oscillator Super-regenerative Receiver Selectivity Experiments

Adventures in measuring the selectivity of MCU-controlled super-regenerative quartz crystal controlled receivers. Resulting in a very useful selective log power meter.

Parent article: MCU Controlled Super-regeneration with Quartz Oscillators.

2 comments.

1st February 2010

AD8307 RF Power Meter

A RF power measuring head using the AD8307.

23rd January 2010

MCU Controlled Super-regeneration with Quartz Oscillators

A low-speed data link implemented using Pierce quartz crystal oscillators controlled by a microcontroller.

Contains 1 sub-article.

4th January 2010

Rope Light Controller Failure

Arcing fault destroys the Rope Light controller.

Parent article: Rope Light Christmas Star.

2 comments.

28th December 2009

4-channel PWM Tree Emulator

A web-based emulator for the 240 LED Christmas Tree project.

Parent article: 240 LED Animated Christmas Tree.

2 comments.

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