Dear LF,
Taking a look on Markus' VLF grabber, it seems, the time window with a minimum QRN becomes smaller in the last weeks(see the picture). Has anyone experience (Paul?) if this is a daily accident or a tendency when going to the summer? What will be in one month?
BTW, my 600W PA almost works; the amperemeter (1A full range) is now inserted into the coil and is calibrated; i built up a narrow band active E field antenna for the dreamers band (2x BF862, 2 band pass filters, BW abt 500Hz, preamp noise 20dB above soundcard
noise, preamp + VLF noise 40dB above soundcard noise, decoupling AF transformer) that will give my new VLF grabber in Heidelberg :-)
Things are going on and new records will have to be done :-)
Best 73, Stefan/DK7FC
