29 Mar 2015

VLF experiment?

VLF 5W TX beacon (as now)
Although I still feel unwell because of the after-effects of my stroke, I feel in the mood for some field work for the first time in a very long time.

I'll try to optimise the match of my VLF earth-mode QRSS3 beacon to my earth-electrodes as a first step.  This alone will probably exhaust me as it will probably mean re-winding a 3C90 toroid.

I can transmit a crystal derived, stable signal at 8.97kHz. Once done, I'll copy this on another PC in the lounge running Spectran software. If this all works, I'll go to my nearest test site to see what copy is like using a RX loop and preamp.

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