Category Archives: Amateur Radio

MFJ-492X How-To Reset on Fail

The other day when I tried to power-up my MFJ-492X memory keyer, all I got was a short, low frequency “bzzz”.    The lights down the left side of the front panel cycled as normal, but it wouldn’t generate any tones. … Continue reading

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90th running of the Pikes Peak International Hill Climb

Working communications for the 90th running of the Pikes Peak International Hill Climb (PPIHC) made for a long day.   Arriving at 3AM to set-up, and finishing after 8PM, it proved taxing and rewarding.   The race was delayed 37 days due … Continue reading

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Quicksilver Radio

After deploying for the Springer fire, arson investigation, and the Waldo Canyon fires, I have a few days to get ready for the Pikes Peak International Hill Climb (delayed due to fire).    Getting up on the mountain at 3AM, and … Continue reading

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Arduino Iambic Keyer and Side Tone Generator

The latest issue of QEX (March/April) came this week with an article about an open-source keyer (pages 25-31).   This article referenced an earlier QEX article from Sept/Oct 2009 using an Arduino.    Since I have a Bencher paddle lying around, but … Continue reading

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