electronics

K3NG Keyer

Finally I finished my ‘new’ keyer based upon the famous K3NG design. I used a standard Arduino Uno board and made my own shield and enclosure.

Read more ….

Sequencer

For my 70 cm setup (TS930 – MMT432/28 – LPM432/100) I had the need for a sequencer that generates the proper timing to switch all on/off in the correct order.

Top view sequencer

Top view sequencer

Read more ….

Video Switch for ATV

After being active with ATV on several bands with multiple video sources, I felt the need to have a video switch. With this I do not have to plug one video source to another anymore, it saves time especially when working in a contest.

20131031_082723

Overview of video switch unit.

Read more ….

RF Power Meter

A power meter is almost a necessity when building your RF equipment. Since I did not have one I decided to build one myself.

SAM_0522_2

Analog meter with homemade scale

 

 

 

 

 

 

 

Read more ….

ATV generator

For Amateur Television I was looking for a simple and standalone video generator that could do the following:

  • Show predefined pictures in graphic format ( .jpg )
  • Play movies (in mpeg format)
  • Play sound (MP3 or WAV format)
  • Simple to use
  • Network capable (uploading pictures)
  • PAL output
SAM_0313

Front view of RPI-ATV

 

Read more ….