[hpsdr] Problem with Powersdr 2.2.3 and Hermes

[Andrew]

Hi,
A couple of small problems running v2.2.3 (single or dual Rx version) 
downloaded from the openhpsdr website with Hermes and that is that 
'Alex' is always selected. This means that within the 50MHz band the dBm levels are out by the gain of the LNA in Alex (26dB?). Tuning just outside the band and all the levels return to normal.
Is there a way to deselect Alex properly please? Its unticked in the setup>hardware window, but the button is illuminated on the main screen (button next to MOX and below TUN).
(I also get Metis selected, can't deselect that either??)

Second
 problem - the ADC overload warning comes on fine with the single 
receiver version but does seem to function with the dual receiver 
version???

What triggers the overload warning, is it the actual ADC overflow output or triggered by the input level exceeding a certain dBFS level determined in software (if so, what is it -1dBFS or 0dBFS etc??)
Incidentally,
 I notice that there is about as far as I can estimate a -7dB (maybe its
 6dB, can't tell) difference between ADC input level (dBFS) and the level indicated on the Powersdr s meter set to read ADC level.
I can guess why this might be i.e. each I/Q 
being 6dB lower than the ADC real level etc, but can anyone confirm the 
relationship please?
Is there any way to observe the actual ADC wideband level in dBFS??


Many thanks,Andrew
G4XZL
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20121016/cd4ec6b0/attachment-0003.htm>