The HBG plotting is now running on a complete dedicated system. The
graph is now calibrated and reads actual input power into the 75 ohm
terminated input of the HP SLM. I finally figured out how to use the
100 db dynamic range of this instrument. The output tracks perfectly
with Spectrum Lab. The antenna is a 3.3 meter square loop with no
amplification.
The plot is uploaded every 5 minuets to:
http://www.w4dex.com/75khz/hbg.jpg
The daily plot will be stored in the 75 khz directory at:
http://www.w4dex.com/75khz/
If there is blank data for a period it will probably be due to shutting
down during thunderstorms.
I would like to run on this signal through the winter solstice. Then I
could change to whatever signal is deemed to be useful.
Comments and or suggestions will be appreciated.
My thanks to Wolf for Spectrum Lab and his assistance.
Dexter, W4DEX
www.w4dex.com
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