N4HAY / ZS6RSH
A collection of my adventures in Amateur Radio
21 September 2016
Triple Tuned Band Pass Filter Measurements
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As a learning exercise I measured the characteristics of a Triple Tuned Circuit Bandpass Filter in my junkbox. This is a board that came fr...
1 comment:
18 September 2016
Revisit AD8307 Power Meter Calibration
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This year at our club, annual pig picking BBQ and show-n-tell I had a chance to borrow the kind services of fellow Knightlites member OM Joh...
10 March 2016
455 KHz IF Transformer Characterization
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I found an unmarked IF Transformer in my junkbox which seems to have reasonable characteristics for use in my 455KHz IF stage for my shortwa...
AM Diode Simple Envelope Detector Measurements
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As a part of a project to build a simple shortwave broadcast radio based on the published KD1JV design Steve KD1JDV Shortwave Broadcast Rx ...
09 February 2016
Calculate VSWR for varying Reactance Values X
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Great question from Richard N4PBQ as follows: "So as I'm analyzing my various antennas I understand that my antenna is at reso...
08 February 2016
ELECRAFT BL2 Balun Measurements
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The ELECRAFT BL2 BALUN Return Loss and Balance were measured as shown in the referenced links. The Balance measurements were performed accor...
2 comments:
19 November 2015
Measuring Potentiometer Resistance Taper
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I had some fun measuring the resistance of a linear 10Kohm potentiometer from my junkbox and designated B10K. I then measured an ALPS 10Ko...
3 comments:
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