[hpsdr] Hump with Janus/Ozy/SDR1000

Gerd Loch g.loch at nt-electronics.de
Tue Nov 6 01:26:50 PST 2007


Hi Phil,

as far as I understood the AK5394 in the Janus design the noise in the
frequency range below 100 Hz can be reduced by using bigger capacitor values
(i.e. 470uF) for C18-C21. Could this be a conveniant way to further reduce
the hump on the panadapter?
Are there problems due to the increased settling times of Vref or is the
software waiting long enough with the calibration routine?

Gerd
DJ8AY




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