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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

 

 

 

 

 

 

 

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IC202 makeover

I decided to upgrade my old IC202 with some new features,  a long time ago I already added a new frontend based upon a BF891 and SBL-1 but I now wanted to have a digital readout to have a better and more accurate frequency  reading.

SAM_1409

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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

 

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144 MHz Power Amplifier

Finally my 144 MHZ QRO amplifier is ready. Based upon PCB of F1JRD and a BLF578 of NXP.  The PA is capable of making > 800W but due to antenna limitations it can only run at about 400 Watt.

Amplifier in test setup

 

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