[hpsdr] Janus problem; difference of 6dbFs between left and right in powersdr.

[Johan Maas]

Hello All,

Iam testing a homebrew ISD , looking with rocky (via on board soud card) the output of both channels is equal.

But looking to the PowerSDR and using Janus i have a difference of 6db between the channels.

I have been measuring on the input with a scoop; i found a difference on JP6 and JP3. JP3 shows signal and JP6 not!

When looking to the schematic (a PDF of scheme (2006042101)  XC11 ) i see difference in the circuit description between the two channels:

- JP3 is directly connected to the ADC
- JP6 is connected via R26 to the ADC
- JP6 is connected via R26 to the ADC
- JP3 is connected via R12 and R6 to the ADC

Is the drawing wrong? But where does the difference come from?

Hope someone an help?

73 Johan PA3GSB
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