What is that big signal at 9.00kc?

Mike
WE0H


Markus V wrote:

Dear LF,

many thanks to the group, for the nice and positive feedback regarding the recent 9 kHz experiments! I have now lashed up a temporary VLF grabber, featuring 15 mHz FFT resolution around 8970 Hz:

http://www.mydarc.de/df6nm/vlf/vlfgrabber.htm

Sensitivity still leaves a bit to be desired, with a number of local noise sources around. I won't be able to leave it on permanently due to limited computing resources, and I will have to disconnect it during LF transmit activity. Best regards

Markus