Categories

Posts Tagged ‘QRP’

AF5HD’s L-Match tuner build

Monday, June 10th, 2019

Ryan Flowers writes,  "A fun project for every QRP enthusiast is an L-match tuner. We’ve built a couple here at MiscDotGeek and our latest build inspired Billy Dunn (AF5HD) to build a similar tuner. We have to say, this one turned out better than ours did!" More details on MiscDotGeek...

Tags: , ,
Posted in DIY | No Comments »

The Sproutie “SPT” Beacon – A legal, unlicensed HiFER beacon

Thursday, November 19th, 2015

Dave Richards (a.k.a. AA7EE) has written an article detailing his "SPT" Sproutie HiFer beacon project: My first “proof of concept” at putting together a beacon for this band was to connect an N0XAS PicoKeyer in beacon mode to my Pixie 2 transmitter. With the PiicoKeyer, if you insert the prosign BN...

Tags: , , ,
Posted in DIY, RF | No Comments »

Bitx20 V3 “Dead bug style” new bandpass filter

Thursday, September 25th, 2014

A Bitx20 band pass filter from Pa1ed: the bandwith of my bandpass filter in the Bitx 20 was very small.Only 100KHz or so.I found this filter on the internet,and after I,ve build the filter I found out that this was the filter used in the Bitx20A from Hendricks QRP kits.Because...

Tags: , ,
Posted in DIY | No Comments »

Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please