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Friday, January 16, 2015

Kansas Mighty Mite

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1 comment:

  1. Without a low pass filter, this transmitter produced harmonics up to it's 12th harmonic, ~43MHz. This was determined by transmitting into a dummy load. The output was determined by using the HackRF SDR with SDRConsole v2. This was simply placed on the bench, a few feet from the transmitter. This was just a crude test. It may be possible to determine a fairly accurate estimate of the signal strength in dB (m) using this method, but at the very least it demonstrated the serious need for a LPF. The same test will be performed after an LPF added.

    Also, i recommend against using a mica compression cap. Perhaps low Q? Very little pull. a polyV may even be better. YMMV

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