Grabber info
2200m Full Band View with HGA22 and DCF39. 2200m amateur band limits denoted by shaded area in spectrum plot.


2200m EU QRSS-60           Recent archive


2200m EU QRSS-120           Recent archive


2200m TA QRSS-60           Recent archive


2200m WSPR2/OPERA Fast


2200m WSPR15


2200m WSPR2/OPERA/FST4W Slow


2200m Op32Rx Decodes (No correlation or deep search used!)


630m WSPR/FST4W

Grabbers are not active all of the time and will suffer interference when I am transmitting on LF.

The 2200m receiver is a modified SoftRock Lite II SDR kit. LO is injected at 408 kHz from a Leo Bodnar GPS reference clock and divided by four in the SoftRock quadrature clock generator. There is a 20 dB preamp with bandpass filtering before and after.

The 630m receiver is a modified SoftRock Lite II SDR kit. There is a 20 dB preamp with bandpass filtering before and after.

The antenna is a 9 meter tall "LNV" or a K9AY loop. The K9AY loop can be either northeast or southwest.

Software is HDSDR feeding VB Cable with several instances of Spectrum Lab providing the grabbers.