[hpsdr] NOISE and Janus

[Ahti Aintila]

Hi All,

Taking I and Q signals of the SDR-1000 directly from the sampling
capacitors to the balanced input of the Janus gives a reasonably low
noise level and increased clipping level. See the attached pictures.
The first is with the maximum signal from my signal generator -9.1
dBm, the second -120 dBm and the third with a 50 ohm resistor (and
spurious reduction turned on).

The RFE preamp was on and the attenuator off.

73, Ahti OH2RZ
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